Evidence for B-→τ-ν̄τ with a semileptonic tagging method

K. Hara; T. Iijima; H. Aihara; V. Aulchenko; T. Aushev; T. Aziz; A. M. Bakich; E. Barberio; K. Belous; M. Bischofberger; A. Bondar; A. Bozek; M. Bračko; T. E. Browder; P. Chang; Y. Chao; A. Chen; B. G. Cheon; C. C. Chiang; I. S. Cho; Y. Choi; J. Dalseno; M. Danilov; Z. Doležal; W. Dungel; S. Eidelman; N. Gabyshev; P. Goldenzweig; B. Golob; H. Ha; Y. Hasegawa; K. Hayasaka; H. Hayashii; Y. Horii; Y. Hoshi; Y. B. Hsiung; H. J. Hyun; K. Inami; M. Iwabuchi; Y. Iwasaki; T. Julius; J. H. Kang; H. Kawai; T. Kawasaki; H. Kichimi; C. Kiesling; H. J. Kim; H. O. Kim; J. H. Kim; M. J. Kim; Y. J. Kim; K. Kinoshita; B. R. Ko; P. Kodyž; S. Korpar; M. Kreps; P. Križan; P. Krokovny; T. Kuhr; T. Kumita; A. Kuzmin; Y. J. Kwon; S. H. Kyeong; M. J. Lee; S. H. Lee; J. Li; A. Limosani; Y. Liu; D. Liventsev; R. Louvot; A. Matyja; S. McOnie; K. Miyabayashi; H. Miyata; Y. Miyazaki; G. B. Mohanty; T. Mori; E. Nakano; M. Nakao; H. Nakazawa; S. Neubauer; S. Nishida; K. Nishimura; O. Nitoh; T. Nozaki; S. Ogawa; T. Ohshima; S. Okuno; S. L. Olsen; H. Ozaki; G. Pakhlova; C. W. Park; H. K. Park; R. Pestotnik; M. Petrič; L. E. Piilonen; M. Prim; M. Rozanska; S. Ryu; H. Sahoo; Y. Sakai; O. Schneider; J. Schümann; C. Schwanda; A. J. Schwartz; K. Senyo; M. E. Sevior; M. Shapkin; H. Shibuya; J. G. Shiu; B. Shwartz; J. B. Singh; P. Smerkol; E. Solovieva; S. Stanič; M. Starič; K. Sumisawa; T. Sumiyoshi; Y. Teramoto; I. Tikhomirov; K. Trabelsi; S. Uehara; T. Uglov; Y. Unno; S. Uno; Y. Ushiroda; G. Varner; K. E. Varvell; K. Vervink; C. H. Wang; M. Z. Wang; P. Wang; Y. Watanabe; R. Wedd; E. Won; B. D. Yabsley; Y. Yamashita; M. Yamauchi; C. Z. Yuan; C. C. Zhang; V. Zhilich; T. Zivko; A. Zupanc; O. Zyukova

doi:10.1103/PhysRevD.82.071101

Evidence for B^-→τ^-ν̄τ with a semileptonic tagging method

K. Hara, T. Iijima, H. Aihara, V. Aulchenko, T. Aushev, T. Aziz, A. M. Bakich, E. Barberio, K. Belous, M. Bischofberger, A. Bondar, A. Bozek, M. Bračko, T. E. Browder, P. Chang, Y. Chao, A. Chen, B. G. Cheon, C. C. Chiang, I. S. ChoY. Choi, J. Dalseno, M. Danilov, Z. Doležal, W. Dungel, S. Eidelman, N. Gabyshev, P. Goldenzweig, B. Golob, H. Ha, Y. Hasegawa, K. Hayasaka, H. Hayashii, Y. Horii, Y. Hoshi, Y. B. Hsiung, H. J. Hyun, K. Inami, M. Iwabuchi, Y. Iwasaki, T. Julius, J. H. Kang, H. Kawai, T. Kawasaki, H. Kichimi, C. Kiesling, H. J. Kim, H. O. Kim, J. H. Kim, M. J. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, P. Kodyž, S. Korpar, M. Kreps, P. Križan, P. Krokovny, T. Kuhr, T. Kumita, A. Kuzmin, Y. J. Kwon, S. H. Kyeong, M. J. Lee, S. H. Lee, J. Li, A. Limosani, Y. Liu, D. Liventsev, R. Louvot, A. Matyja, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, G. B. Mohanty, T. Mori, E. Nakano, M. Nakao, H. Nakazawa, S. Neubauer, S. Nishida, K. Nishimura, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, G. Pakhlova, C. W. Park, H. K. Park, R. Pestotnik, M. Petrič, L. E. Piilonen, M. Prim, M. Rozanska, S. Ryu, H. Sahoo, Y. Sakai, O. Schneider, J. Schümann, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, J. G. Shiu, B. Shwartz, J. B. Singh, P. Smerkol, E. Solovieva, S. Stanič, M. Starič, K. Sumisawa, T. Sumiyoshi, Y. Teramoto, I. Tikhomirov, K. Trabelsi, S. Uehara, T. Uglov, Y. Unno, S. Uno, Y. Ushiroda, G. Varner, K. E. Varvell, K. Vervink, C. H. Wang, M. Z. Wang, P. Wang, Y. Watanabe, R. Wedd, E. Won, B. D. Yabsley, Y. Yamashita, M. Yamauchi, C. Z. Yuan, C. C. Zhang, V. Zhilich, T. Zivko, A. Zupanc, O. Zyukova

Department of Physics

Research output: Contribution to journal › Article › peer-review

109 Citations (Scopus)

Abstract

We present a measurement of the decay B^-→τ ^-ν̄τ using a data sample containing 657×106 BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e⁺e^- collider. A sample of B⁺B^- pairs are tagged by reconstructing one B⁺ meson decaying semileptonically. We detect the B^-→τ ^-ν̄τ candidate in the recoil. We obtain a signal with a significance of 3.6 standard deviations including systematic uncertainties, and measure the branching fraction to be B(B^-→τ ^-ν̄τ)=[1.54-0.37+0.38(stat)-0.31+0.29(syst)] ×10^-4. This result confirms the evidence for B ^-→τ^-ν̄τ obtained in a previous Belle measurement that used a hadronic B tagging method.

Original language	English
Article number	071101
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	82
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevD.82.071101
Publication status	Published - 2010 Oct 22

Bibliographical note

Funding Information:
This research is based on data from the Add Health project, a program project designed by J. Richard Udry (PI) and Peter Bearman, and funded by grant P01-HD31921 from the National Institute of Child Health and Human Development to the Carolina Population Center, University of North Carolina at Chapel Hill, with cooperative funding participation by the National Cancer Institute; the National Institute of Alcohol Abuse and Alcoholism; the National Institute on Deafness and Other Communication Disorders; the National Institute of Drug Abuse; the National Institute of General Medical Sciences; the National Institute of Mental Health; the National Institute of Nursing Research; the Office of AIDS Research, NIH; the Office of Behavior and Social Science Research, NIH; the Office of the Director, NIH; the Office of Research on Women's Health, NIH; the Office of Population Affairs, DHHS; the National Center for Health Statistics, Centers for Disease Control and Prevention, DHHS; the Office of Minority Health, Centers for Disease Control and Prevention, DHHS; the Office of Minority Health, Office of Public Health and Science, DHHS; the Office of the Assistant Secretary for Planning and Evaluation, DHHS; and the National Science Foundation. Persons interested in obtaining data files from The National Longitudinal Study of Adolescent Health should contact Jo Jones, Carolina Population Center, 123 West Franklin Street, Chapel Hill, NC 27516-3997 (email: jo_jones@unc.edu ).

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

Access to Document

10.1103/PhysRevD.82.071101

Cite this

Hara, K., Iijima, T., Aihara, H., Aulchenko, V., Aushev, T., Aziz, T., Bakich, A. M., Barberio, E., Belous, K., Bischofberger, M., Bondar, A., Bozek, A., Bračko, M., Browder, T. E., Chang, P., Chao, Y., Chen, A., Cheon, B. G., Chiang, C. C., ... Zyukova, O. (2010). Evidence for B^-→τ^-ν̄τ with a semileptonic tagging method. Physical Review D - Particles, Fields, Gravitation and Cosmology, 82(7), [071101]. https://doi.org/10.1103/PhysRevD.82.071101

@article{a2241606a9104aba899d0034e8a9c48d,

title = "Evidence for B-→τ-{\=ν}τ with a semileptonic tagging method",

abstract = "We present a measurement of the decay B-→τ -{\=ν}τ using a data sample containing 657×106 B{\=B} pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. A sample of B+B- pairs are tagged by reconstructing one B+ meson decaying semileptonically. We detect the B-→τ -{\=ν}τ candidate in the recoil. We obtain a signal with a significance of 3.6 standard deviations including systematic uncertainties, and measure the branching fraction to be B(B-→τ -{\=ν}τ)=[1.54-0.37+0.38(stat)-0.31+0.29(syst)] ×10-4. This result confirms the evidence for B -→τ-{\=ν}τ obtained in a previous Belle measurement that used a hadronic B tagging method.",

author = "K. Hara and T. Iijima and H. Aihara and V. Aulchenko and T. Aushev and T. Aziz and Bakich, {A. M.} and E. Barberio and K. Belous and M. Bischofberger and A. Bondar and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and P. Chang and Y. Chao and A. Chen and Cheon, {B. G.} and Chiang, {C. C.} and Cho, {I. S.} and Y. Choi and J. Dalseno and M. Danilov and Z. Dole{\v z}al and W. Dungel and S. Eidelman and N. Gabyshev and P. Goldenzweig and B. Golob and H. Ha and Y. Hasegawa and K. Hayasaka and H. Hayashii and Y. Horii and Y. Hoshi and Hsiung, {Y. B.} and Hyun, {H. J.} and K. Inami and M. Iwabuchi and Y. Iwasaki and T. Julius and Kang, {J. H.} and H. Kawai and T. Kawasaki and H. Kichimi and C. Kiesling and Kim, {H. J.} and Kim, {H. O.} and Kim, {J. H.} and Kim, {M. J.} and Kim, {Y. J.} and K. Kinoshita and Ko, {B. R.} and P. Kody{\v z} and S. Korpar and M. Kreps and P. Kri{\v z}an and P. Krokovny and T. Kuhr and T. Kumita and A. Kuzmin and Kwon, {Y. J.} and Kyeong, {S. H.} and Lee, {M. J.} and Lee, {S. H.} and J. Li and A. Limosani and Y. Liu and D. Liventsev and R. Louvot and A. Matyja and S. McOnie and K. Miyabayashi and H. Miyata and Y. Miyazaki and Mohanty, {G. B.} and T. Mori and E. Nakano and M. Nakao and H. Nakazawa and S. Neubauer and S. Nishida and K. Nishimura and O. Nitoh and T. Nozaki and S. Ogawa and T. Ohshima and S. Okuno and Olsen, {S. L.} and H. Ozaki and G. Pakhlova and Park, {C. W.} and Park, {H. K.} and R. Pestotnik and M. Petri{\v c} and Piilonen, {L. E.} and M. Prim and M. Rozanska and S. Ryu and H. Sahoo and Y. Sakai and O. Schneider and J. Sch{\"u}mann and C. Schwanda and Schwartz, {A. J.} and K. Senyo and Sevior, {M. E.} and M. Shapkin and H. Shibuya and Shiu, {J. G.} and B. Shwartz and Singh, {J. B.} and P. Smerkol and E. Solovieva and S. Stani{\v c} and M. Stari{\v c} and K. Sumisawa and T. Sumiyoshi and Y. Teramoto and I. Tikhomirov and K. Trabelsi and S. Uehara and T. Uglov and Y. Unno and S. Uno and Y. Ushiroda and G. Varner and Varvell, {K. E.} and K. Vervink and Wang, {C. H.} and Wang, {M. Z.} and P. Wang and Y. Watanabe and R. Wedd and E. Won and Yabsley, {B. D.} and Y. Yamashita and M. Yamauchi and Yuan, {C. Z.} and Zhang, {C. C.} and V. Zhilich and T. Zivko and A. Zupanc and O. Zyukova",

note = "Funding Information: This research is based on data from the Add Health project, a program project designed by J. Richard Udry (PI) and Peter Bearman, and funded by grant P01-HD31921 from the National Institute of Child Health and Human Development to the Carolina Population Center, University of North Carolina at Chapel Hill, with cooperative funding participation by the National Cancer Institute; the National Institute of Alcohol Abuse and Alcoholism; the National Institute on Deafness and Other Communication Disorders; the National Institute of Drug Abuse; the National Institute of General Medical Sciences; the National Institute of Mental Health; the National Institute of Nursing Research; the Office of AIDS Research, NIH; the Office of Behavior and Social Science Research, NIH; the Office of the Director, NIH; the Office of Research on Women's Health, NIH; the Office of Population Affairs, DHHS; the National Center for Health Statistics, Centers for Disease Control and Prevention, DHHS; the Office of Minority Health, Centers for Disease Control and Prevention, DHHS; the Office of Minority Health, Office of Public Health and Science, DHHS; the Office of the Assistant Secretary for Planning and Evaluation, DHHS; and the National Science Foundation. Persons interested in obtaining data files from The National Longitudinal Study of Adolescent Health should contact Jo Jones, Carolina Population Center, 123 West Franklin Street, Chapel Hill, NC 27516-3997 (email: jo_jones@unc.edu ).",

year = "2010",

month = oct,

day = "22",

doi = "10.1103/PhysRevD.82.071101",

language = "English",

volume = "82",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

number = "7",

}

Hara, K, Iijima, T, Aihara, H, Aulchenko, V, Aushev, T, Aziz, T, Bakich, AM, Barberio, E, Belous, K, Bischofberger, M, Bondar, A, Bozek, A, Bračko, M, Browder, TE, Chang, P, Chao, Y, Chen, A, Cheon, BG, Chiang, CC, Cho, IS, Choi, Y, Dalseno, J, Danilov, M, Doležal, Z, Dungel, W, Eidelman, S, Gabyshev, N, Goldenzweig, P, Golob, B, Ha, H, Hasegawa, Y, Hayasaka, K, Hayashii, H, Horii, Y, Hoshi, Y, Hsiung, YB, Hyun, HJ, Inami, K, Iwabuchi, M, Iwasaki, Y, Julius, T, Kang, JH, Kawai, H, Kawasaki, T, Kichimi, H, Kiesling, C, Kim, HJ, Kim, HO, Kim, JH, Kim, MJ, Kim, YJ, Kinoshita, K, Ko, BR, Kodyž, P, Korpar, S, Kreps, M, Križan, P, Krokovny, P, Kuhr, T, Kumita, T, Kuzmin, A, Kwon, YJ, Kyeong, SH, Lee, MJ, Lee, SH, Li, J, Limosani, A, Liu, Y, Liventsev, D, Louvot, R, Matyja, A, McOnie, S, Miyabayashi, K, Miyata, H, Miyazaki, Y, Mohanty, GB, Mori, T, Nakano, E, Nakao, M, Nakazawa, H, Neubauer, S, Nishida, S, Nishimura, K, Nitoh, O, Nozaki, T, Ogawa, S, Ohshima, T, Okuno, S, Olsen, SL, Ozaki, H, Pakhlova, G, Park, CW, Park, HK, Pestotnik, R, Petrič, M, Piilonen, LE, Prim, M, Rozanska, M, Ryu, S, Sahoo, H, Sakai, Y, Schneider, O, Schümann, J, Schwanda, C, Schwartz, AJ, Senyo, K, Sevior, ME, Shapkin, M, Shibuya, H, Shiu, JG, Shwartz, B, Singh, JB, Smerkol, P, Solovieva, E, Stanič, S, Starič, M, Sumisawa, K, Sumiyoshi, T, Teramoto, Y, Tikhomirov, I, Trabelsi, K, Uehara, S, Uglov, T, Unno, Y, Uno, S, Ushiroda, Y, Varner, G, Varvell, KE, Vervink, K, Wang, CH, Wang, MZ, Wang, P, Watanabe, Y, Wedd, R, Won, E, Yabsley, BD, Yamashita, Y, Yamauchi, M, Yuan, CZ, Zhang, CC, Zhilich, V, Zivko, T, Zupanc, A & Zyukova, O 2010, 'Evidence for B^-→τ^-ν̄τ with a semileptonic tagging method', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 82, no. 7, 071101. https://doi.org/10.1103/PhysRevD.82.071101

TY - JOUR

T1 - Evidence for B-→τ-ν̄τ with a semileptonic tagging method

AU - Hara, K.

AU - Iijima, T.

AU - Aihara, H.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Aziz, T.

AU - Bakich, A. M.

AU - Barberio, E.

AU - Belous, K.

AU - Bischofberger, M.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chang, P.

AU - Chao, Y.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chiang, C. C.

AU - Cho, I. S.

AU - Choi, Y.

AU - Dalseno, J.

AU - Danilov, M.

AU - Doležal, Z.

AU - Dungel, W.

AU - Eidelman, S.

AU - Gabyshev, N.

AU - Goldenzweig, P.

AU - Golob, B.

AU - Ha, H.

AU - Hasegawa, Y.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Horii, Y.

AU - Hoshi, Y.

AU - Hsiung, Y. B.

AU - Hyun, H. J.

AU - Inami, K.

AU - Iwabuchi, M.

AU - Iwasaki, Y.

AU - Julius, T.

AU - Kang, J. H.

AU - Kawai, H.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kiesling, C.

AU - Kim, H. J.

AU - Kim, H. O.

AU - Kim, J. H.

AU - Kim, M. J.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Ko, B. R.

AU - Kodyž, P.

AU - Korpar, S.

AU - Kreps, M.

AU - Križan, P.

AU - Krokovny, P.

AU - Kuhr, T.

AU - Kumita, T.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Kyeong, S. H.

AU - Lee, M. J.

AU - Lee, S. H.

AU - Li, J.

AU - Limosani, A.

AU - Liu, Y.

AU - Liventsev, D.

AU - Louvot, R.

AU - Matyja, A.

AU - McOnie, S.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Miyazaki, Y.

AU - Mohanty, G. B.

AU - Mori, T.

AU - Nakano, E.

AU - Nakao, M.

AU - Nakazawa, H.

AU - Neubauer, S.

AU - Nishida, S.

AU - Nishimura, K.

AU - Nitoh, O.

AU - Nozaki, T.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Ozaki, H.

AU - Pakhlova, G.

AU - Park, C. W.

AU - Park, H. K.

AU - Pestotnik, R.

AU - Petrič, M.

AU - Piilonen, L. E.

AU - Prim, M.

AU - Rozanska, M.

AU - Ryu, S.

AU - Sahoo, H.

AU - Sakai, Y.

AU - Schneider, O.

AU - Schümann, J.

AU - Schwanda, C.

AU - Schwartz, A. J.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shibuya, H.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Singh, J. B.

AU - Smerkol, P.

AU - Solovieva, E.

AU - Stanič, S.

AU - Starič, M.

AU - Sumisawa, K.

AU - Sumiyoshi, T.

AU - Teramoto, Y.

AU - Tikhomirov, I.

AU - Trabelsi, K.

AU - Uehara, S.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Ushiroda, Y.

AU - Varner, G.

AU - Varvell, K. E.

AU - Vervink, K.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Wang, P.

AU - Watanabe, Y.

AU - Wedd, R.

AU - Won, E.

AU - Yabsley, B. D.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Yuan, C. Z.

AU - Zhang, C. C.

AU - Zhilich, V.

AU - Zivko, T.

AU - Zupanc, A.

AU - Zyukova, O.

N1 - Funding Information: This research is based on data from the Add Health project, a program project designed by J. Richard Udry (PI) and Peter Bearman, and funded by grant P01-HD31921 from the National Institute of Child Health and Human Development to the Carolina Population Center, University of North Carolina at Chapel Hill, with cooperative funding participation by the National Cancer Institute; the National Institute of Alcohol Abuse and Alcoholism; the National Institute on Deafness and Other Communication Disorders; the National Institute of Drug Abuse; the National Institute of General Medical Sciences; the National Institute of Mental Health; the National Institute of Nursing Research; the Office of AIDS Research, NIH; the Office of Behavior and Social Science Research, NIH; the Office of the Director, NIH; the Office of Research on Women's Health, NIH; the Office of Population Affairs, DHHS; the National Center for Health Statistics, Centers for Disease Control and Prevention, DHHS; the Office of Minority Health, Centers for Disease Control and Prevention, DHHS; the Office of Minority Health, Office of Public Health and Science, DHHS; the Office of the Assistant Secretary for Planning and Evaluation, DHHS; and the National Science Foundation. Persons interested in obtaining data files from The National Longitudinal Study of Adolescent Health should contact Jo Jones, Carolina Population Center, 123 West Franklin Street, Chapel Hill, NC 27516-3997 (email: jo_jones@unc.edu ).

PY - 2010/10/22

Y1 - 2010/10/22

N2 - We present a measurement of the decay B-→τ -ν̄τ using a data sample containing 657×106 BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. A sample of B+B- pairs are tagged by reconstructing one B+ meson decaying semileptonically. We detect the B-→τ -ν̄τ candidate in the recoil. We obtain a signal with a significance of 3.6 standard deviations including systematic uncertainties, and measure the branching fraction to be B(B-→τ -ν̄τ)=[1.54-0.37+0.38(stat)-0.31+0.29(syst)] ×10-4. This result confirms the evidence for B -→τ-ν̄τ obtained in a previous Belle measurement that used a hadronic B tagging method.

AB - We present a measurement of the decay B-→τ -ν̄τ using a data sample containing 657×106 BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. A sample of B+B- pairs are tagged by reconstructing one B+ meson decaying semileptonically. We detect the B-→τ -ν̄τ candidate in the recoil. We obtain a signal with a significance of 3.6 standard deviations including systematic uncertainties, and measure the branching fraction to be B(B-→τ -ν̄τ)=[1.54-0.37+0.38(stat)-0.31+0.29(syst)] ×10-4. This result confirms the evidence for B -→τ-ν̄τ obtained in a previous Belle measurement that used a hadronic B tagging method.

UR - http://www.scopus.com/inward/record.url?scp=78650973111&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78650973111&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.82.071101

DO - 10.1103/PhysRevD.82.071101

M3 - Article

AN - SCOPUS:78650973111

SN - 1550-7998

VL - 82

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

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

IS - 7

M1 - 071101

ER -