Inclusive cross section and double helicity asymmetry for π0 production in p+p collisions at s=200GeV: Implications for the polarized gluon distribution in the proton

A. Adare, S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, H. Al-Bataineh, J. Alexander, K. Aoki, L. Aphecetche, R. Armendariz, S. H. Aronson, J. Asai, E. T. Atomssa, R. Averbeck, T. C. Awes, B. Azmoun, V. Babintsev, G. Baksay, L. Baksay, A. BaldisseriK. N. Barish, P. D. Barnes, B. Bassalleck, S. Bathe, S. Batsouli, V. Baublis, A. Bazilevsky, S. Belikov, R. Bennett, Y. Berdnikov, A. A. Bickley, J. G. Boissevain, H. Borel, K. Boyle, M. L. Brooks, H. Buesching, V. Bumazhnov, G. Bunce, S. Butsyk, S. Campbell, B. S. Chang, J. L. Charvet, S. Chernichenko, J. Chiba, C. Y. Chi, M. Chiu, I. J. Choi, T. Chujo, P. Chung, A. Churyn, V. Cianciolo, C. R. Cleven, B. A. Cole, M. P. Comets, P. Constantin, M. Csanád, T. Csörgo, T. Dahms, K. Das, G. David, M. B. Deaton, K. Dehmelt, H. Delagrange, A. Denisov, D. D'Enterria, A. Deshpande, E. J. Desmond, O. Dietzsch, A. Dion, M. Donadelli, O. Drapier, A. Drees, A. K. Dubey, A. Durum, V. Dzhordzhadze, Y. V. Efremenko, J. Egdemir, F. Ellinghaus, W. S. Emam, A. Enokizono, H. En'Yo, S. Esumi, K. O. Eyser, D. E. Fields, M. Finger, M. Finger, F. Fleuret, S. L. Fokin, Z. Fraenkel, J. E. Frantz, A. Franz, A. D. Frawley, K. Fujiwara, Y. Fukao, T. Fusayasu, S. Gadrat, I. Garishvili, A. Glenn, H. Gong, M. Gonin, J. Gosset, Y. Goto, R. Granier De Cassagnac, N. Grau, S. V. Greene, M. Grosse Perdekamp, T. Gunji, H. Å Gustafsson, T. Hachiya, A. Hadj Henni, C. Haegemann, J. S. Haggerty, H. Hamagaki, R. Han, H. Harada, E. P. Hartouni, K. Haruna, E. Haslum, R. Hayano, M. Heffner, T. K. Hemmick, T. Hester, X. He, H. Hiejima, J. C. Hill, R. Hobbs, M. Hohlmann, W. Holzmann, K. Homma, B. Hong, T. Horaguchi, D. Hornback, T. Ichihara, K. Imai, M. Inaba, Y. Inoue, D. Isenhower, L. Isenhower, M. Ishihara, T. Isobe, M. Issah, A. Isupov, B. V. Jacak, J. Jia, J. Jin, O. Jinnouchi, B. M. Johnson, K. S. Joo, D. Jouan, F. Kajihara, S. Kametani, N. Kamihara, J. Kamin, M. Kaneta, J. H. Kang, H. Kanou, D. Kawall, A. V. Kazantsev, A. Khanzadeev, J. Kikuchi, D. H. Kim, D. J. Kim, E. Kim, E. Kinney, A. Kiss, E. Kistenev, A. Kiyomichi, J. Klay, C. Klein-Boesing, L. Kochenda, V. Kochetkov, B. Komkov, M. Konno, D. Kotchetkov, A. Kozlov, A. Král, A. Kravitz, J. Kubart, G. J. Kunde, N. Kurihara, K. Kurita, M. J. Kweon, Y. Kwon, G. S. Kyle, R. Lacey, Y. S. Lai, J. G. Lajoie, A. Lebedev, D. M. Lee, M. K. Lee, T. Lee, M. J. Leitch, M. A.L. Leite, B. Lenzi, T. Liška, A. Litvinenko, M. X. Liu, X. Li, B. Love, D. Lynch, C. F. Maguire, Y. I. Makdisi, A. Malakhov, M. D. Malik, V. I. Manko, Y. Mao, L. Mašek, H. Masui, F. Matathias, M. McCumber, P. L. McGaughey, Y. Miake, P. Mikeš, K. Miki, T. E. Miller, A. Milov, S. Mioduszewski, M. Mishra, J. T. Mitchell, M. Mitrovski, A. Morreale, D. P. Morrison, T. V. Moukhanova, D. Mukhopadhyay, J. Murata, S. Nagamiya, Y. Nagata, J. L. Nagle, M. Naglis, I. Nakagawa, Y. Nakamiya, T. Nakamura, K. Nakano, J. Newby, M. Nguyen, B. E. Norman, A. S. Nyanin, E. O'Brien, S. X. Oda, C. A. Ogilvie, H. Ohnishi, H. Okada, K. Okada, M. Oka, O. O. Omiwade, A. Oskarsson, M. Ouchida, K. Ozawa, R. Pak, D. Pal, A. P.T. Palounek, V. Pantuev, V. Papavassiliou, J. Park, W. J. Park, S. F. Pate, H. Pei, J. C. Peng, H. Pereira, V. Peresedov, D. Yu Peressounko, C. Pinkenburg, M. L. Purschke, A. K. Purwar, H. Qu, J. Rak, A. Rakotozafindrabe, I. Ravinovich, K. F. Read, S. Rembeczki, M. Reuter, K. Reygers, V. Riabov, Y. Riabov, G. Roche, A. Romana, M. Rosati, S. S.E. Rosendahl, P. Rosnet, P. Rukoyatkin, V. L. Rykov, B. Sahlmueller, N. Saito, T. Sakaguchi, S. Sakai, H. Sakata, V. Samsonov, S. Sato, S. Sawada, J. Seele, R. Seidl, V. Semenov, R. Seto, D. Sharma, I. Shein, A. Shevel, T. A. Shibata, K. Shigaki, M. Shimomura, K. Shoji, A. Sickles, C. L. Silva, D. Silvermyr, C. Silvestre, K. S. Sim, C. P. Singh, V. Singh, S. Skutnik, M. Slunečka, A. Soldatov, R. A. Soltz, W. E. Sondheim, S. P. Sorensen, I. V. Sourikova, F. Staley, P. W. Stankus, E. Stenlund, M. Stepanov, A. Ster, S. P. Stoll, T. Sugitate, C. Suire, J. Sziklai, T. Tabaru, S. Takagi, E. M. Takagui, A. Taketani, Y. Tanaka, K. Tanida, M. J. Tannenbaum, A. Taranenko, P. Tarján, T. L. Thomas, M. Togawa, A. Toia, J. Tojo, L. Tomášek, H. Torii, R. S. Towell, V. N. Tram, I. Tserruya, Y. Tsuchimoto, C. Vale, H. Valle, H. W. Van Hecke, J. Velkovska, R. Vertesi, A. A. Vinogradov, M. Virius, V. Vrba, E. Vznuzdaev, M. Wagner, D. Walker, X. R. Wang, Y. Watanabe, J. Wessels, S. N. White, D. Winter, C. L. Woody, M. Wysocki, W. Xie, Y. Yamaguchi, A. Yanovich, Z. Yasin, J. Ying, S. Yokkaichi, G. R. Young, I. Younus, I. E. Yushmanov, W. A. Zajc, O. Zaudtke, C. Zhang, S. Zhou, J. Zimányi, L. Zolin

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Abstract

The PHENIX experiment presents results from the Relativistic Heavy Ion Collider 2005 run with polarized proton collisions at s=200GeV, for inclusive π0 production at midrapidity. Unpolarized cross section results are given for transverse momenta pT=0.5 to 20GeV/c, extending the range of published data to both lower and higher pT. The cross section is described well for pT<1GeV/c by an exponential in pT, and, for pT>2GeV/c, by perturbative QCD. Double helicity asymmetries ALL are presented based on a factor of 5 improvement in uncertainties as compared to previously published results, due to both an improved beam polarization of 50%, and to higher integrated luminosity. These measurements are sensitive to the gluon polarization in the proton. Using one representative model of gluon polarization it is demonstrated that the gluon spin contribution to the proton spin is significantly constrained.

Original languageEnglish
Article number051106
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume76
Issue number5
DOIs
Publication statusPublished - 2007 Sep 25

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asymmetry
collisions
protons
cross sections
polarization
transverse momentum
heavy ions
quantum chromodynamics
luminosity

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Adare, A. ; Afanasiev, S. ; Aidala, C. ; Ajitanand, N. N. ; Akiba, Y. ; Al-Bataineh, H. ; Alexander, J. ; Aoki, K. ; Aphecetche, L. ; Armendariz, R. ; Aronson, S. H. ; Asai, J. ; Atomssa, E. T. ; Averbeck, R. ; Awes, T. C. ; Azmoun, B. ; Babintsev, V. ; Baksay, G. ; Baksay, L. ; Baldisseri, A. ; Barish, K. N. ; Barnes, P. D. ; Bassalleck, B. ; Bathe, S. ; Batsouli, S. ; Baublis, V. ; Bazilevsky, A. ; Belikov, S. ; Bennett, R. ; Berdnikov, Y. ; Bickley, A. A. ; Boissevain, J. G. ; Borel, H. ; Boyle, K. ; Brooks, M. L. ; Buesching, H. ; Bumazhnov, V. ; Bunce, G. ; Butsyk, S. ; Campbell, S. ; Chang, B. S. ; Charvet, J. L. ; Chernichenko, S. ; Chiba, J. ; Chi, C. Y. ; Chiu, M. ; Choi, I. J. ; Chujo, T. ; Chung, P. ; Churyn, A. ; Cianciolo, V. ; Cleven, C. R. ; Cole, B. A. ; Comets, M. P. ; Constantin, P. ; Csanád, M. ; Csörgo, T. ; Dahms, T. ; Das, K. ; David, G. ; Deaton, M. B. ; Dehmelt, K. ; Delagrange, H. ; Denisov, A. ; D'Enterria, D. ; Deshpande, A. ; Desmond, E. J. ; Dietzsch, O. ; Dion, A. ; Donadelli, M. ; Drapier, O. ; Drees, A. ; Dubey, A. K. ; Durum, A. ; Dzhordzhadze, V. ; Efremenko, Y. V. ; Egdemir, J. ; Ellinghaus, F. ; Emam, W. S. ; Enokizono, A. ; En'Yo, H. ; Esumi, S. ; Eyser, K. O. ; Fields, D. E. ; Finger, M. ; Finger, M. ; Fleuret, F. ; Fokin, S. L. ; Fraenkel, Z. ; Frantz, J. E. ; Franz, A. ; Frawley, A. D. ; Fujiwara, K. ; Fukao, Y. ; Fusayasu, T. ; Gadrat, S. ; Garishvili, I. ; Glenn, A. ; Gong, H. ; Gonin, M. ; Gosset, J. ; Goto, Y. ; De Cassagnac, R. Granier ; Grau, N. ; Greene, S. V. ; Perdekamp, M. Grosse ; Gunji, T. ; Gustafsson, H. Å ; Hachiya, T. ; Henni, A. Hadj ; Haegemann, C. ; Haggerty, J. S. ; Hamagaki, H. ; Han, R. ; Harada, H. ; Hartouni, E. P. ; Haruna, K. ; Haslum, E. ; Hayano, R. ; Heffner, M. ; Hemmick, T. K. ; Hester, T. ; He, X. ; Hiejima, H. ; Hill, J. C. ; Hobbs, R. ; Hohlmann, M. ; Holzmann, W. ; Homma, K. ; Hong, B. ; Horaguchi, T. ; Hornback, D. ; Ichihara, T. ; Imai, K. ; Inaba, M. ; Inoue, Y. ; Isenhower, D. ; Isenhower, L. ; Ishihara, M. ; Isobe, T. ; Issah, M. ; Isupov, A. ; Jacak, B. V. ; Jia, J. ; Jin, J. ; Jinnouchi, O. ; Johnson, B. M. ; Joo, K. S. ; Jouan, D. ; Kajihara, F. ; Kametani, S. ; Kamihara, N. ; Kamin, J. ; Kaneta, M. ; Kang, J. H. ; Kanou, H. ; Kawall, D. ; Kazantsev, A. V. ; Khanzadeev, A. ; Kikuchi, J. ; Kim, D. H. ; Kim, D. J. ; Kim, E. ; Kinney, E. ; Kiss, A. ; Kistenev, E. ; Kiyomichi, A. ; Klay, J. ; Klein-Boesing, C. ; Kochenda, L. ; Kochetkov, V. ; Komkov, B. ; Konno, M. ; Kotchetkov, D. ; Kozlov, A. ; Král, A. ; Kravitz, A. ; Kubart, J. ; Kunde, G. J. ; Kurihara, N. ; Kurita, K. ; Kweon, M. J. ; Kwon, Y. ; Kyle, G. S. ; Lacey, R. ; Lai, Y. S. ; Lajoie, J. G. ; Lebedev, A. ; Lee, D. M. ; Lee, M. K. ; Lee, T. ; Leitch, M. J. ; Leite, M. A.L. ; Lenzi, B. ; Liška, T. ; Litvinenko, A. ; Liu, M. X. ; Li, X. ; Love, B. ; Lynch, D. ; Maguire, C. F. ; Makdisi, Y. I. ; Malakhov, A. ; Malik, M. D. ; Manko, V. I. ; Mao, Y. ; Mašek, L. ; Masui, H. ; Matathias, F. ; McCumber, M. ; McGaughey, P. L. ; Miake, Y. ; Mikeš, P. ; Miki, K. ; Miller, T. E. ; Milov, A. ; Mioduszewski, S. ; Mishra, M. ; Mitchell, J. T. ; Mitrovski, M. ; Morreale, A. ; Morrison, D. P. ; Moukhanova, T. V. ; Mukhopadhyay, D. ; Murata, J. ; Nagamiya, S. ; Nagata, Y. ; Nagle, J. L. ; Naglis, M. ; Nakagawa, I. ; Nakamiya, Y. ; Nakamura, T. ; Nakano, K. ; Newby, J. ; Nguyen, M. ; Norman, B. E. ; Nyanin, A. S. ; O'Brien, E. ; Oda, S. X. ; Ogilvie, C. A. ; Ohnishi, H. ; Okada, H. ; Okada, K. ; Oka, M. ; Omiwade, O. O. ; Oskarsson, A. ; Ouchida, M. ; Ozawa, K. ; Pak, R. ; Pal, D. ; Palounek, A. P.T. ; Pantuev, V. ; Papavassiliou, V. ; Park, J. ; Park, W. J. ; Pate, S. F. ; Pei, H. ; Peng, J. C. ; Pereira, H. ; Peresedov, V. ; Peressounko, D. Yu ; Pinkenburg, C. ; Purschke, M. L. ; Purwar, A. K. ; Qu, H. ; Rak, J. ; Rakotozafindrabe, A. ; Ravinovich, I. ; Read, K. F. ; Rembeczki, S. ; Reuter, M. ; Reygers, K. ; Riabov, V. ; Riabov, Y. ; Roche, G. ; Romana, A. ; Rosati, M. ; Rosendahl, S. S.E. ; Rosnet, P. ; Rukoyatkin, P. ; Rykov, V. L. ; Sahlmueller, B. ; Saito, N. ; Sakaguchi, T. ; Sakai, S. ; Sakata, H. ; Samsonov, V. ; Sato, S. ; Sawada, S. ; Seele, J. ; Seidl, R. ; Semenov, V. ; Seto, R. ; Sharma, D. ; Shein, I. ; Shevel, A. ; Shibata, T. A. ; Shigaki, K. ; Shimomura, M. ; Shoji, K. ; Sickles, A. ; Silva, C. L. ; Silvermyr, D. ; Silvestre, C. ; Sim, K. S. ; Singh, C. P. ; Singh, V. ; Skutnik, S. ; Slunečka, M. ; Soldatov, A. ; Soltz, R. A. ; Sondheim, W. E. ; Sorensen, S. P. ; Sourikova, I. V. ; Staley, F. ; Stankus, P. W. ; Stenlund, E. ; Stepanov, M. ; Ster, A. ; Stoll, S. P. ; Sugitate, T. ; Suire, C. ; Sziklai, J. ; Tabaru, T. ; Takagi, S. ; Takagui, E. M. ; Taketani, A. ; Tanaka, Y. ; Tanida, K. ; Tannenbaum, M. J. ; Taranenko, A. ; Tarján, P. ; Thomas, T. L. ; Togawa, M. ; Toia, A. ; Tojo, J. ; Tomášek, L. ; Torii, H. ; Towell, R. S. ; Tram, V. N. ; Tserruya, I. ; Tsuchimoto, Y. ; Vale, C. ; Valle, H. ; Van Hecke, H. W. ; Velkovska, J. ; Vertesi, R. ; Vinogradov, A. A. ; Virius, M. ; Vrba, V. ; Vznuzdaev, E. ; Wagner, M. ; Walker, D. ; Wang, X. R. ; Watanabe, Y. ; Wessels, J. ; White, S. N. ; Winter, D. ; Woody, C. L. ; Wysocki, M. ; Xie, W. ; Yamaguchi, Y. ; Yanovich, A. ; Yasin, Z. ; Ying, J. ; Yokkaichi, S. ; Young, G. R. ; Younus, I. ; Yushmanov, I. E. ; Zajc, W. A. ; Zaudtke, O. ; Zhang, C. ; Zhou, S. ; Zimányi, J. ; Zolin, L. / Inclusive cross section and double helicity asymmetry for π0 production in p+p collisions at s=200GeV : Implications for the polarized gluon distribution in the proton. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2007 ; Vol. 76, No. 5.
@article{3db9f06f30a945abb2161c92f61b1d85,
title = "Inclusive cross section and double helicity asymmetry for π0 production in p+p collisions at s=200GeV: Implications for the polarized gluon distribution in the proton",
abstract = "The PHENIX experiment presents results from the Relativistic Heavy Ion Collider 2005 run with polarized proton collisions at s=200GeV, for inclusive π0 production at midrapidity. Unpolarized cross section results are given for transverse momenta pT=0.5 to 20GeV/c, extending the range of published data to both lower and higher pT. The cross section is described well for pT<1GeV/c by an exponential in pT, and, for pT>2GeV/c, by perturbative QCD. Double helicity asymmetries ALL are presented based on a factor of 5 improvement in uncertainties as compared to previously published results, due to both an improved beam polarization of 50{\%}, and to higher integrated luminosity. These measurements are sensitive to the gluon polarization in the proton. Using one representative model of gluon polarization it is demonstrated that the gluon spin contribution to the proton spin is significantly constrained.",
author = "A. Adare and S. Afanasiev and C. Aidala and Ajitanand, {N. N.} and Y. Akiba and H. Al-Bataineh and J. Alexander and K. Aoki and L. Aphecetche and R. Armendariz and Aronson, {S. H.} and J. Asai and Atomssa, {E. T.} and R. Averbeck and Awes, {T. C.} and B. Azmoun and V. Babintsev and G. Baksay and L. Baksay and A. Baldisseri and Barish, {K. N.} and Barnes, {P. D.} and B. Bassalleck and S. Bathe and S. Batsouli and V. Baublis and A. Bazilevsky and S. Belikov and R. Bennett and Y. Berdnikov and Bickley, {A. A.} and Boissevain, {J. G.} and H. Borel and K. Boyle and Brooks, {M. L.} and H. Buesching and V. Bumazhnov and G. Bunce and S. Butsyk and S. Campbell and Chang, {B. S.} and Charvet, {J. L.} and S. Chernichenko and J. Chiba and Chi, {C. Y.} and M. Chiu and Choi, {I. J.} and T. Chujo and P. Chung and A. Churyn and V. Cianciolo and Cleven, {C. R.} and Cole, {B. A.} and Comets, {M. P.} and P. Constantin and M. Csan{\'a}d and T. Cs{\"o}rgo and T. Dahms and K. Das and G. David and Deaton, {M. B.} and K. Dehmelt and H. Delagrange and A. Denisov and D. D'Enterria and A. Deshpande and Desmond, {E. J.} and O. Dietzsch and A. Dion and M. Donadelli and O. Drapier and A. Drees and Dubey, {A. K.} and A. Durum and V. Dzhordzhadze and Efremenko, {Y. V.} and J. Egdemir and F. Ellinghaus and Emam, {W. S.} and A. Enokizono and H. En'Yo and S. Esumi and Eyser, {K. O.} and Fields, {D. E.} and M. Finger and M. Finger and F. Fleuret and Fokin, {S. L.} and Z. Fraenkel and Frantz, {J. E.} and A. Franz and Frawley, {A. D.} and K. Fujiwara and Y. Fukao and T. Fusayasu and S. Gadrat and I. Garishvili and A. Glenn and H. Gong and M. Gonin and J. Gosset and Y. Goto and {De Cassagnac}, {R. Granier} and N. Grau and Greene, {S. V.} and Perdekamp, {M. Grosse} and T. Gunji and Gustafsson, {H. {\AA}} and T. Hachiya and Henni, {A. Hadj} and C. Haegemann and Haggerty, {J. S.} and H. Hamagaki and R. Han and H. Harada and Hartouni, {E. P.} and K. Haruna and E. Haslum and R. Hayano and M. Heffner and Hemmick, {T. K.} and T. Hester and X. He and H. Hiejima and Hill, {J. C.} and R. Hobbs and M. Hohlmann and W. Holzmann and K. Homma and B. Hong and T. Horaguchi and D. Hornback and T. Ichihara and K. Imai and M. Inaba and Y. Inoue and D. Isenhower and L. Isenhower and M. Ishihara and T. Isobe and M. Issah and A. Isupov and Jacak, {B. V.} and J. Jia and J. Jin and O. Jinnouchi and Johnson, {B. M.} and Joo, {K. S.} and D. Jouan and F. Kajihara and S. Kametani and N. Kamihara and J. Kamin and M. Kaneta and Kang, {J. H.} and H. Kanou and D. Kawall and Kazantsev, {A. V.} and A. Khanzadeev and J. Kikuchi and Kim, {D. H.} and Kim, {D. J.} and E. Kim and E. Kinney and A. Kiss and E. Kistenev and A. Kiyomichi and J. Klay and C. Klein-Boesing and L. Kochenda and V. Kochetkov and B. Komkov and M. Konno and D. Kotchetkov and A. Kozlov and A. Kr{\'a}l and A. Kravitz and J. Kubart and Kunde, {G. J.} and N. Kurihara and K. Kurita and Kweon, {M. J.} and Y. Kwon and Kyle, {G. S.} and R. Lacey and Lai, {Y. S.} and Lajoie, {J. G.} and A. Lebedev and Lee, {D. M.} and Lee, {M. K.} and T. Lee and Leitch, {M. J.} and Leite, {M. A.L.} and B. Lenzi and T. Liška and A. Litvinenko and Liu, {M. X.} and X. Li and B. Love and D. Lynch and Maguire, {C. F.} and Makdisi, {Y. I.} and A. Malakhov and Malik, {M. D.} and Manko, {V. I.} and Y. Mao and L. Mašek and H. Masui and F. Matathias and M. McCumber and McGaughey, {P. L.} and Y. Miake and P. Mikeš and K. Miki and Miller, {T. E.} and A. Milov and S. Mioduszewski and M. Mishra and Mitchell, {J. T.} and M. Mitrovski and A. Morreale and Morrison, {D. P.} and Moukhanova, {T. V.} and D. Mukhopadhyay and J. Murata and S. Nagamiya and Y. Nagata and Nagle, {J. L.} and M. Naglis and I. Nakagawa and Y. Nakamiya and T. Nakamura and K. Nakano and J. Newby and M. Nguyen and Norman, {B. E.} and Nyanin, {A. S.} and E. O'Brien and Oda, {S. X.} and Ogilvie, {C. A.} and H. Ohnishi and H. Okada and K. Okada and M. Oka and Omiwade, {O. O.} and A. Oskarsson and M. Ouchida and K. Ozawa and R. Pak and D. Pal and Palounek, {A. P.T.} and V. Pantuev and V. Papavassiliou and J. Park and Park, {W. J.} and Pate, {S. F.} and H. Pei and Peng, {J. C.} and H. Pereira and V. Peresedov and Peressounko, {D. Yu} and C. Pinkenburg and Purschke, {M. L.} and Purwar, {A. K.} and H. Qu and J. Rak and A. Rakotozafindrabe and I. Ravinovich and Read, {K. F.} and S. Rembeczki and M. Reuter and K. Reygers and V. Riabov and Y. Riabov and G. Roche and A. Romana and M. Rosati and Rosendahl, {S. S.E.} and P. Rosnet and P. Rukoyatkin and Rykov, {V. L.} and B. Sahlmueller and N. Saito and T. Sakaguchi and S. Sakai and H. Sakata and V. Samsonov and S. Sato and S. Sawada and J. Seele and R. Seidl and V. Semenov and R. Seto and D. Sharma and I. Shein and A. Shevel and Shibata, {T. A.} and K. Shigaki and M. Shimomura and K. Shoji and A. Sickles and Silva, {C. L.} and D. Silvermyr and C. Silvestre and Sim, {K. S.} and Singh, {C. P.} and V. Singh and S. Skutnik and M. Slunečka and A. Soldatov and Soltz, {R. A.} and Sondheim, {W. E.} and Sorensen, {S. P.} and Sourikova, {I. V.} and F. Staley and Stankus, {P. W.} and E. Stenlund and M. Stepanov and A. Ster and Stoll, {S. P.} and T. Sugitate and C. Suire and J. Sziklai and T. Tabaru and S. Takagi and Takagui, {E. M.} and A. Taketani and Y. Tanaka and K. Tanida and Tannenbaum, {M. J.} and A. Taranenko and P. Tarj{\'a}n and Thomas, {T. L.} and M. Togawa and A. Toia and J. Tojo and L. Tom{\'a}šek and H. Torii and Towell, {R. S.} and Tram, {V. N.} and I. Tserruya and Y. Tsuchimoto and C. Vale and H. Valle and {Van Hecke}, {H. W.} and J. Velkovska and R. Vertesi and Vinogradov, {A. A.} and M. Virius and V. Vrba and E. Vznuzdaev and M. Wagner and D. Walker and Wang, {X. R.} and Y. Watanabe and J. Wessels and White, {S. N.} and D. Winter and Woody, {C. L.} and M. Wysocki and W. Xie and Y. Yamaguchi and A. Yanovich and Z. Yasin and J. Ying and S. Yokkaichi and Young, {G. R.} and I. Younus and Yushmanov, {I. E.} and Zajc, {W. A.} and O. Zaudtke and C. Zhang and S. Zhou and J. Zim{\'a}nyi and L. Zolin",
year = "2007",
month = "9",
day = "25",
doi = "10.1103/PhysRevD.76.051106",
language = "English",
volume = "76",
journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",
issn = "1550-7998",
number = "5",

}

Adare, A, Afanasiev, S, Aidala, C, Ajitanand, NN, Akiba, Y, Al-Bataineh, H, Alexander, J, Aoki, K, Aphecetche, L, Armendariz, R, Aronson, SH, Asai, J, Atomssa, ET, Averbeck, R, Awes, TC, Azmoun, B, Babintsev, V, Baksay, G, Baksay, L, Baldisseri, A, Barish, KN, Barnes, PD, Bassalleck, B, Bathe, S, Batsouli, S, Baublis, V, Bazilevsky, A, Belikov, S, Bennett, R, Berdnikov, Y, Bickley, AA, Boissevain, JG, Borel, H, Boyle, K, Brooks, ML, Buesching, H, Bumazhnov, V, Bunce, G, Butsyk, S, Campbell, S, Chang, BS, Charvet, JL, Chernichenko, S, Chiba, J, Chi, CY, Chiu, M, Choi, IJ, Chujo, T, Chung, P, Churyn, A, Cianciolo, V, Cleven, CR, Cole, BA, Comets, MP, Constantin, P, Csanád, M, Csörgo, T, Dahms, T, Das, K, David, G, Deaton, MB, Dehmelt, K, Delagrange, H, Denisov, A, D'Enterria, D, Deshpande, A, Desmond, EJ, Dietzsch, O, Dion, A, Donadelli, M, Drapier, O, Drees, A, Dubey, AK, Durum, A, Dzhordzhadze, V, Efremenko, YV, Egdemir, J, Ellinghaus, F, Emam, WS, Enokizono, A, En'Yo, H, Esumi, S, Eyser, KO, Fields, DE, Finger, M, Finger, M, Fleuret, F, Fokin, SL, Fraenkel, Z, Frantz, JE, Franz, A, Frawley, AD, Fujiwara, K, Fukao, Y, Fusayasu, T, Gadrat, S, Garishvili, I, Glenn, A, Gong, H, Gonin, M, Gosset, J, Goto, Y, De Cassagnac, RG, Grau, N, Greene, SV, Perdekamp, MG, Gunji, T, Gustafsson, HÅ, Hachiya, T, Henni, AH, Haegemann, C, Haggerty, JS, Hamagaki, H, Han, R, Harada, H, Hartouni, EP, Haruna, K, Haslum, E, Hayano, R, Heffner, M, Hemmick, TK, Hester, T, He, X, Hiejima, H, Hill, JC, Hobbs, R, Hohlmann, M, Holzmann, W, Homma, K, Hong, B, Horaguchi, T, Hornback, D, Ichihara, T, Imai, K, Inaba, M, Inoue, Y, Isenhower, D, Isenhower, L, Ishihara, M, Isobe, T, Issah, M, Isupov, A, Jacak, BV, Jia, J, Jin, J, Jinnouchi, O, Johnson, BM, Joo, KS, Jouan, D, Kajihara, F, Kametani, S, Kamihara, N, Kamin, J, Kaneta, M, Kang, JH, Kanou, H, Kawall, D, Kazantsev, AV, Khanzadeev, A, Kikuchi, J, Kim, DH, Kim, DJ, Kim, E, Kinney, E, Kiss, A, Kistenev, E, Kiyomichi, A, Klay, J, Klein-Boesing, C, Kochenda, L, Kochetkov, V, Komkov, B, Konno, M, Kotchetkov, D, Kozlov, A, Král, A, Kravitz, A, Kubart, J, Kunde, GJ, Kurihara, N, Kurita, K, Kweon, MJ, Kwon, Y, Kyle, GS, Lacey, R, Lai, YS, Lajoie, JG, Lebedev, A, Lee, DM, Lee, MK, Lee, T, Leitch, MJ, Leite, MAL, Lenzi, B, Liška, T, Litvinenko, A, Liu, MX, Li, X, Love, B, Lynch, D, Maguire, CF, Makdisi, YI, Malakhov, A, Malik, MD, Manko, VI, Mao, Y, Mašek, L, Masui, H, Matathias, F, McCumber, M, McGaughey, PL, Miake, Y, Mikeš, P, Miki, K, Miller, TE, Milov, A, Mioduszewski, S, Mishra, M, Mitchell, JT, Mitrovski, M, Morreale, A, Morrison, DP, Moukhanova, TV, Mukhopadhyay, D, Murata, J, Nagamiya, S, Nagata, Y, Nagle, JL, Naglis, M, Nakagawa, I, Nakamiya, Y, Nakamura, T, Nakano, K, Newby, J, Nguyen, M, Norman, BE, Nyanin, AS, O'Brien, E, Oda, SX, Ogilvie, CA, Ohnishi, H, Okada, H, Okada, K, Oka, M, Omiwade, OO, Oskarsson, A, Ouchida, M, Ozawa, K, Pak, R, Pal, D, Palounek, APT, Pantuev, V, Papavassiliou, V, Park, J, Park, WJ, Pate, SF, Pei, H, Peng, JC, Pereira, H, Peresedov, V, Peressounko, DY, Pinkenburg, C, Purschke, ML, Purwar, AK, Qu, H, Rak, J, Rakotozafindrabe, A, Ravinovich, I, Read, KF, Rembeczki, S, Reuter, M, Reygers, K, Riabov, V, Riabov, Y, Roche, G, Romana, A, Rosati, M, Rosendahl, SSE, Rosnet, P, Rukoyatkin, P, Rykov, VL, Sahlmueller, B, Saito, N, Sakaguchi, T, Sakai, S, Sakata, H, Samsonov, V, Sato, S, Sawada, S, Seele, J, Seidl, R, Semenov, V, Seto, R, Sharma, D, Shein, I, Shevel, A, Shibata, TA, Shigaki, K, Shimomura, M, Shoji, K, Sickles, A, Silva, CL, Silvermyr, D, Silvestre, C, Sim, KS, Singh, CP, Singh, V, Skutnik, S, Slunečka, M, Soldatov, A, Soltz, RA, Sondheim, WE, Sorensen, SP, Sourikova, IV, Staley, F, Stankus, PW, Stenlund, E, Stepanov, M, Ster, A, Stoll, SP, Sugitate, T, Suire, C, Sziklai, J, Tabaru, T, Takagi, S, Takagui, EM, Taketani, A, Tanaka, Y, Tanida, K, Tannenbaum, MJ, Taranenko, A, Tarján, P, Thomas, TL, Togawa, M, Toia, A, Tojo, J, Tomášek, L, Torii, H, Towell, RS, Tram, VN, Tserruya, I, Tsuchimoto, Y, Vale, C, Valle, H, Van Hecke, HW, Velkovska, J, Vertesi, R, Vinogradov, AA, Virius, M, Vrba, V, Vznuzdaev, E, Wagner, M, Walker, D, Wang, XR, Watanabe, Y, Wessels, J, White, SN, Winter, D, Woody, CL, Wysocki, M, Xie, W, Yamaguchi, Y, Yanovich, A, Yasin, Z, Ying, J, Yokkaichi, S, Young, GR, Younus, I, Yushmanov, IE, Zajc, WA, Zaudtke, O, Zhang, C, Zhou, S, Zimányi, J & Zolin, L 2007, 'Inclusive cross section and double helicity asymmetry for π0 production in p+p collisions at s=200GeV: Implications for the polarized gluon distribution in the proton', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 76, no. 5, 051106. https://doi.org/10.1103/PhysRevD.76.051106

Inclusive cross section and double helicity asymmetry for π0 production in p+p collisions at s=200GeV : Implications for the polarized gluon distribution in the proton. / Adare, A.; Afanasiev, S.; Aidala, C.; Ajitanand, N. N.; Akiba, Y.; Al-Bataineh, H.; Alexander, J.; Aoki, K.; Aphecetche, L.; Armendariz, R.; Aronson, S. H.; Asai, J.; Atomssa, E. T.; Averbeck, R.; Awes, T. C.; Azmoun, B.; Babintsev, V.; Baksay, G.; Baksay, L.; Baldisseri, A.; Barish, K. N.; Barnes, P. D.; Bassalleck, B.; Bathe, S.; Batsouli, S.; Baublis, V.; Bazilevsky, A.; Belikov, S.; Bennett, R.; Berdnikov, Y.; Bickley, A. A.; Boissevain, J. G.; Borel, H.; Boyle, K.; Brooks, M. L.; Buesching, H.; Bumazhnov, V.; Bunce, G.; Butsyk, S.; Campbell, S.; Chang, B. S.; Charvet, J. L.; Chernichenko, S.; Chiba, J.; Chi, C. Y.; Chiu, M.; Choi, I. J.; Chujo, T.; Chung, P.; Churyn, A.; Cianciolo, V.; Cleven, C. R.; Cole, B. A.; Comets, M. P.; Constantin, P.; Csanád, M.; Csörgo, T.; Dahms, T.; Das, K.; David, G.; Deaton, M. B.; Dehmelt, K.; Delagrange, H.; Denisov, A.; D'Enterria, D.; Deshpande, A.; Desmond, E. J.; Dietzsch, O.; Dion, A.; Donadelli, M.; Drapier, O.; Drees, A.; Dubey, A. K.; Durum, A.; Dzhordzhadze, V.; Efremenko, Y. V.; Egdemir, J.; Ellinghaus, F.; Emam, W. S.; Enokizono, A.; En'Yo, H.; Esumi, S.; Eyser, K. O.; Fields, D. E.; Finger, M.; Finger, M.; Fleuret, F.; Fokin, S. L.; Fraenkel, Z.; Frantz, J. E.; Franz, A.; Frawley, A. D.; Fujiwara, K.; Fukao, Y.; Fusayasu, T.; Gadrat, S.; Garishvili, I.; Glenn, A.; Gong, H.; Gonin, M.; Gosset, J.; Goto, Y.; De Cassagnac, R. Granier; Grau, N.; Greene, S. V.; Perdekamp, M. Grosse; Gunji, T.; Gustafsson, H. Å; Hachiya, T.; Henni, A. Hadj; Haegemann, C.; Haggerty, J. S.; Hamagaki, H.; Han, R.; Harada, H.; Hartouni, E. P.; Haruna, K.; Haslum, E.; Hayano, R.; Heffner, M.; Hemmick, T. K.; Hester, T.; He, X.; Hiejima, H.; Hill, J. C.; Hobbs, R.; Hohlmann, M.; Holzmann, W.; Homma, K.; Hong, B.; Horaguchi, T.; Hornback, D.; Ichihara, T.; Imai, K.; Inaba, M.; Inoue, Y.; Isenhower, D.; Isenhower, L.; Ishihara, M.; Isobe, T.; Issah, M.; Isupov, A.; Jacak, B. V.; Jia, J.; Jin, J.; Jinnouchi, O.; Johnson, B. M.; Joo, K. S.; Jouan, D.; Kajihara, F.; Kametani, S.; Kamihara, N.; Kamin, J.; Kaneta, M.; Kang, J. H.; Kanou, H.; Kawall, D.; Kazantsev, A. V.; Khanzadeev, A.; Kikuchi, J.; Kim, D. H.; Kim, D. J.; Kim, E.; Kinney, E.; Kiss, A.; Kistenev, E.; Kiyomichi, A.; Klay, J.; Klein-Boesing, C.; Kochenda, L.; Kochetkov, V.; Komkov, B.; Konno, M.; Kotchetkov, D.; Kozlov, A.; Král, A.; Kravitz, A.; Kubart, J.; Kunde, G. J.; Kurihara, N.; Kurita, K.; Kweon, M. J.; Kwon, Y.; Kyle, G. S.; Lacey, R.; Lai, Y. S.; Lajoie, J. G.; Lebedev, A.; Lee, D. M.; Lee, M. K.; Lee, T.; Leitch, M. J.; Leite, M. A.L.; Lenzi, B.; Liška, T.; Litvinenko, A.; Liu, M. X.; Li, X.; Love, B.; Lynch, D.; Maguire, C. F.; Makdisi, Y. I.; Malakhov, A.; Malik, M. D.; Manko, V. I.; Mao, Y.; Mašek, L.; Masui, H.; Matathias, F.; McCumber, M.; McGaughey, P. L.; Miake, Y.; Mikeš, P.; Miki, K.; Miller, T. E.; Milov, A.; Mioduszewski, S.; Mishra, M.; Mitchell, J. T.; Mitrovski, M.; Morreale, A.; Morrison, D. P.; Moukhanova, T. V.; Mukhopadhyay, D.; Murata, J.; Nagamiya, S.; Nagata, Y.; Nagle, J. L.; Naglis, M.; Nakagawa, I.; Nakamiya, Y.; Nakamura, T.; Nakano, K.; Newby, J.; Nguyen, M.; Norman, B. E.; Nyanin, A. S.; O'Brien, E.; Oda, S. X.; Ogilvie, C. A.; Ohnishi, H.; Okada, H.; Okada, K.; Oka, M.; Omiwade, O. O.; Oskarsson, A.; Ouchida, M.; Ozawa, K.; Pak, R.; Pal, D.; Palounek, A. P.T.; Pantuev, V.; Papavassiliou, V.; Park, J.; Park, W. J.; Pate, S. F.; Pei, H.; Peng, J. C.; Pereira, H.; Peresedov, V.; Peressounko, D. Yu; Pinkenburg, C.; Purschke, M. L.; Purwar, A. K.; Qu, H.; Rak, J.; Rakotozafindrabe, A.; Ravinovich, I.; Read, K. F.; Rembeczki, S.; Reuter, M.; Reygers, K.; Riabov, V.; Riabov, Y.; Roche, G.; Romana, A.; Rosati, M.; Rosendahl, S. S.E.; Rosnet, P.; Rukoyatkin, P.; Rykov, V. L.; Sahlmueller, B.; Saito, N.; Sakaguchi, T.; Sakai, S.; Sakata, H.; Samsonov, V.; Sato, S.; Sawada, S.; Seele, J.; Seidl, R.; Semenov, V.; Seto, R.; Sharma, D.; Shein, I.; Shevel, A.; Shibata, T. A.; Shigaki, K.; Shimomura, M.; Shoji, K.; Sickles, A.; Silva, C. L.; Silvermyr, D.; Silvestre, C.; Sim, K. S.; Singh, C. P.; Singh, V.; Skutnik, S.; Slunečka, M.; Soldatov, A.; Soltz, R. A.; Sondheim, W. E.; Sorensen, S. P.; Sourikova, I. V.; Staley, F.; Stankus, P. W.; Stenlund, E.; Stepanov, M.; Ster, A.; Stoll, S. P.; Sugitate, T.; Suire, C.; Sziklai, J.; Tabaru, T.; Takagi, S.; Takagui, E. M.; Taketani, A.; Tanaka, Y.; Tanida, K.; Tannenbaum, M. J.; Taranenko, A.; Tarján, P.; Thomas, T. L.; Togawa, M.; Toia, A.; Tojo, J.; Tomášek, L.; Torii, H.; Towell, R. S.; Tram, V. N.; Tserruya, I.; Tsuchimoto, Y.; Vale, C.; Valle, H.; Van Hecke, H. W.; Velkovska, J.; Vertesi, R.; Vinogradov, A. A.; Virius, M.; Vrba, V.; Vznuzdaev, E.; Wagner, M.; Walker, D.; Wang, X. R.; Watanabe, Y.; Wessels, J.; White, S. N.; Winter, D.; Woody, C. L.; Wysocki, M.; Xie, W.; Yamaguchi, Y.; Yanovich, A.; Yasin, Z.; Ying, J.; Yokkaichi, S.; Young, G. R.; Younus, I.; Yushmanov, I. E.; Zajc, W. A.; Zaudtke, O.; Zhang, C.; Zhou, S.; Zimányi, J.; Zolin, L.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 76, No. 5, 051106, 25.09.2007.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Inclusive cross section and double helicity asymmetry for π0 production in p+p collisions at s=200GeV

T2 - Implications for the polarized gluon distribution in the proton

AU - Adare, A.

AU - Afanasiev, S.

AU - Aidala, C.

AU - Ajitanand, N. N.

AU - Akiba, Y.

AU - Al-Bataineh, H.

AU - Alexander, J.

AU - Aoki, K.

AU - Aphecetche, L.

AU - Armendariz, R.

AU - Aronson, S. H.

AU - Asai, J.

AU - Atomssa, E. T.

AU - Averbeck, R.

AU - Awes, T. C.

AU - Azmoun, B.

AU - Babintsev, V.

AU - Baksay, G.

AU - Baksay, L.

AU - Baldisseri, A.

AU - Barish, K. N.

AU - Barnes, P. D.

AU - Bassalleck, B.

AU - Bathe, S.

AU - Batsouli, S.

AU - Baublis, V.

AU - Bazilevsky, A.

AU - Belikov, S.

AU - Bennett, R.

AU - Berdnikov, Y.

AU - Bickley, A. A.

AU - Boissevain, J. G.

AU - Borel, H.

AU - Boyle, K.

AU - Brooks, M. L.

AU - Buesching, H.

AU - Bumazhnov, V.

AU - Bunce, G.

AU - Butsyk, S.

AU - Campbell, S.

AU - Chang, B. S.

AU - Charvet, J. L.

AU - Chernichenko, S.

AU - Chiba, J.

AU - Chi, C. Y.

AU - Chiu, M.

AU - Choi, I. J.

AU - Chujo, T.

AU - Chung, P.

AU - Churyn, A.

AU - Cianciolo, V.

AU - Cleven, C. R.

AU - Cole, B. A.

AU - Comets, M. P.

AU - Constantin, P.

AU - Csanád, M.

AU - Csörgo, T.

AU - Dahms, T.

AU - Das, K.

AU - David, G.

AU - Deaton, M. B.

AU - Dehmelt, K.

AU - Delagrange, H.

AU - Denisov, A.

AU - D'Enterria, D.

AU - Deshpande, A.

AU - Desmond, E. J.

AU - Dietzsch, O.

AU - Dion, A.

AU - Donadelli, M.

AU - Drapier, O.

AU - Drees, A.

AU - Dubey, A. K.

AU - Durum, A.

AU - Dzhordzhadze, V.

AU - Efremenko, Y. V.

AU - Egdemir, J.

AU - Ellinghaus, F.

AU - Emam, W. S.

AU - Enokizono, A.

AU - En'Yo, H.

AU - Esumi, S.

AU - Eyser, K. O.

AU - Fields, D. E.

AU - Finger, M.

AU - Finger, M.

AU - Fleuret, F.

AU - Fokin, S. L.

AU - Fraenkel, Z.

AU - Frantz, J. E.

AU - Franz, A.

AU - Frawley, A. D.

AU - Fujiwara, K.

AU - Fukao, Y.

AU - Fusayasu, T.

AU - Gadrat, S.

AU - Garishvili, I.

AU - Glenn, A.

AU - Gong, H.

AU - Gonin, M.

AU - Gosset, J.

AU - Goto, Y.

AU - De Cassagnac, R. Granier

AU - Grau, N.

AU - Greene, S. V.

AU - Perdekamp, M. Grosse

AU - Gunji, T.

AU - Gustafsson, H. Å

AU - Hachiya, T.

AU - Henni, A. Hadj

AU - Haegemann, C.

AU - Haggerty, J. S.

AU - Hamagaki, H.

AU - Han, R.

AU - Harada, H.

AU - Hartouni, E. P.

AU - Haruna, K.

AU - Haslum, E.

AU - Hayano, R.

AU - Heffner, M.

AU - Hemmick, T. K.

AU - Hester, T.

AU - He, X.

AU - Hiejima, H.

AU - Hill, J. C.

AU - Hobbs, R.

AU - Hohlmann, M.

AU - Holzmann, W.

AU - Homma, K.

AU - Hong, B.

AU - Horaguchi, T.

AU - Hornback, D.

AU - Ichihara, T.

AU - Imai, K.

AU - Inaba, M.

AU - Inoue, Y.

AU - Isenhower, D.

AU - Isenhower, L.

AU - Ishihara, M.

AU - Isobe, T.

AU - Issah, M.

AU - Isupov, A.

AU - Jacak, B. V.

AU - Jia, J.

AU - Jin, J.

AU - Jinnouchi, O.

AU - Johnson, B. M.

AU - Joo, K. S.

AU - Jouan, D.

AU - Kajihara, F.

AU - Kametani, S.

AU - Kamihara, N.

AU - Kamin, J.

AU - Kaneta, M.

AU - Kang, J. H.

AU - Kanou, H.

AU - Kawall, D.

AU - Kazantsev, A. V.

AU - Khanzadeev, A.

AU - Kikuchi, J.

AU - Kim, D. H.

AU - Kim, D. J.

AU - Kim, E.

AU - Kinney, E.

AU - Kiss, A.

AU - Kistenev, E.

AU - Kiyomichi, A.

AU - Klay, J.

AU - Klein-Boesing, C.

AU - Kochenda, L.

AU - Kochetkov, V.

AU - Komkov, B.

AU - Konno, M.

AU - Kotchetkov, D.

AU - Kozlov, A.

AU - Král, A.

AU - Kravitz, A.

AU - Kubart, J.

AU - Kunde, G. J.

AU - Kurihara, N.

AU - Kurita, K.

AU - Kweon, M. J.

AU - Kwon, Y.

AU - Kyle, G. S.

AU - Lacey, R.

AU - Lai, Y. S.

AU - Lajoie, J. G.

AU - Lebedev, A.

AU - Lee, D. M.

AU - Lee, M. K.

AU - Lee, T.

AU - Leitch, M. J.

AU - Leite, M. A.L.

AU - Lenzi, B.

AU - Liška, T.

AU - Litvinenko, A.

AU - Liu, M. X.

AU - Li, X.

AU - Love, B.

AU - Lynch, D.

AU - Maguire, C. F.

AU - Makdisi, Y. I.

AU - Malakhov, A.

AU - Malik, M. D.

AU - Manko, V. I.

AU - Mao, Y.

AU - Mašek, L.

AU - Masui, H.

AU - Matathias, F.

AU - McCumber, M.

AU - McGaughey, P. L.

AU - Miake, Y.

AU - Mikeš, P.

AU - Miki, K.

AU - Miller, T. E.

AU - Milov, A.

AU - Mioduszewski, S.

AU - Mishra, M.

AU - Mitchell, J. T.

AU - Mitrovski, M.

AU - Morreale, A.

AU - Morrison, D. P.

AU - Moukhanova, T. V.

AU - Mukhopadhyay, D.

AU - Murata, J.

AU - Nagamiya, S.

AU - Nagata, Y.

AU - Nagle, J. L.

AU - Naglis, M.

AU - Nakagawa, I.

AU - Nakamiya, Y.

AU - Nakamura, T.

AU - Nakano, K.

AU - Newby, J.

AU - Nguyen, M.

AU - Norman, B. E.

AU - Nyanin, A. S.

AU - O'Brien, E.

AU - Oda, S. X.

AU - Ogilvie, C. A.

AU - Ohnishi, H.

AU - Okada, H.

AU - Okada, K.

AU - Oka, M.

AU - Omiwade, O. O.

AU - Oskarsson, A.

AU - Ouchida, M.

AU - Ozawa, K.

AU - Pak, R.

AU - Pal, D.

AU - Palounek, A. P.T.

AU - Pantuev, V.

AU - Papavassiliou, V.

AU - Park, J.

AU - Park, W. J.

AU - Pate, S. F.

AU - Pei, H.

AU - Peng, J. C.

AU - Pereira, H.

AU - Peresedov, V.

AU - Peressounko, D. Yu

AU - Pinkenburg, C.

AU - Purschke, M. L.

AU - Purwar, A. K.

AU - Qu, H.

AU - Rak, J.

AU - Rakotozafindrabe, A.

AU - Ravinovich, I.

AU - Read, K. F.

AU - Rembeczki, S.

AU - Reuter, M.

AU - Reygers, K.

AU - Riabov, V.

AU - Riabov, Y.

AU - Roche, G.

AU - Romana, A.

AU - Rosati, M.

AU - Rosendahl, S. S.E.

AU - Rosnet, P.

AU - Rukoyatkin, P.

AU - Rykov, V. L.

AU - Sahlmueller, B.

AU - Saito, N.

AU - Sakaguchi, T.

AU - Sakai, S.

AU - Sakata, H.

AU - Samsonov, V.

AU - Sato, S.

AU - Sawada, S.

AU - Seele, J.

AU - Seidl, R.

AU - Semenov, V.

AU - Seto, R.

AU - Sharma, D.

AU - Shein, I.

AU - Shevel, A.

AU - Shibata, T. A.

AU - Shigaki, K.

AU - Shimomura, M.

AU - Shoji, K.

AU - Sickles, A.

AU - Silva, C. L.

AU - Silvermyr, D.

AU - Silvestre, C.

AU - Sim, K. S.

AU - Singh, C. P.

AU - Singh, V.

AU - Skutnik, S.

AU - Slunečka, M.

AU - Soldatov, A.

AU - Soltz, R. A.

AU - Sondheim, W. E.

AU - Sorensen, S. P.

AU - Sourikova, I. V.

AU - Staley, F.

AU - Stankus, P. W.

AU - Stenlund, E.

AU - Stepanov, M.

AU - Ster, A.

AU - Stoll, S. P.

AU - Sugitate, T.

AU - Suire, C.

AU - Sziklai, J.

AU - Tabaru, T.

AU - Takagi, S.

AU - Takagui, E. M.

AU - Taketani, A.

AU - Tanaka, Y.

AU - Tanida, K.

AU - Tannenbaum, M. J.

AU - Taranenko, A.

AU - Tarján, P.

AU - Thomas, T. L.

AU - Togawa, M.

AU - Toia, A.

AU - Tojo, J.

AU - Tomášek, L.

AU - Torii, H.

AU - Towell, R. S.

AU - Tram, V. N.

AU - Tserruya, I.

AU - Tsuchimoto, Y.

AU - Vale, C.

AU - Valle, H.

AU - Van Hecke, H. W.

AU - Velkovska, J.

AU - Vertesi, R.

AU - Vinogradov, A. A.

AU - Virius, M.

AU - Vrba, V.

AU - Vznuzdaev, E.

AU - Wagner, M.

AU - Walker, D.

AU - Wang, X. R.

AU - Watanabe, Y.

AU - Wessels, J.

AU - White, S. N.

AU - Winter, D.

AU - Woody, C. L.

AU - Wysocki, M.

AU - Xie, W.

AU - Yamaguchi, Y.

AU - Yanovich, A.

AU - Yasin, Z.

AU - Ying, J.

AU - Yokkaichi, S.

AU - Young, G. R.

AU - Younus, I.

AU - Yushmanov, I. E.

AU - Zajc, W. A.

AU - Zaudtke, O.

AU - Zhang, C.

AU - Zhou, S.

AU - Zimányi, J.

AU - Zolin, L.

PY - 2007/9/25

Y1 - 2007/9/25

N2 - The PHENIX experiment presents results from the Relativistic Heavy Ion Collider 2005 run with polarized proton collisions at s=200GeV, for inclusive π0 production at midrapidity. Unpolarized cross section results are given for transverse momenta pT=0.5 to 20GeV/c, extending the range of published data to both lower and higher pT. The cross section is described well for pT<1GeV/c by an exponential in pT, and, for pT>2GeV/c, by perturbative QCD. Double helicity asymmetries ALL are presented based on a factor of 5 improvement in uncertainties as compared to previously published results, due to both an improved beam polarization of 50%, and to higher integrated luminosity. These measurements are sensitive to the gluon polarization in the proton. Using one representative model of gluon polarization it is demonstrated that the gluon spin contribution to the proton spin is significantly constrained.

AB - The PHENIX experiment presents results from the Relativistic Heavy Ion Collider 2005 run with polarized proton collisions at s=200GeV, for inclusive π0 production at midrapidity. Unpolarized cross section results are given for transverse momenta pT=0.5 to 20GeV/c, extending the range of published data to both lower and higher pT. The cross section is described well for pT<1GeV/c by an exponential in pT, and, for pT>2GeV/c, by perturbative QCD. Double helicity asymmetries ALL are presented based on a factor of 5 improvement in uncertainties as compared to previously published results, due to both an improved beam polarization of 50%, and to higher integrated luminosity. These measurements are sensitive to the gluon polarization in the proton. Using one representative model of gluon polarization it is demonstrated that the gluon spin contribution to the proton spin is significantly constrained.

UR - http://www.scopus.com/inward/record.url?scp=34848889574&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34848889574&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.76.051106

DO - 10.1103/PhysRevD.76.051106

M3 - Article

AN - SCOPUS:34848889574

VL - 76

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

SN - 1550-7998

IS - 5

M1 - 051106

ER -