Observation of Transverse Λ / Λ Hyperon Polarization in e+e- Annihilation at Belle

Y. Guan, A. Vossen, I. Adachi, K. Adamczyk, J. K. Ahn, H. Aihara, S. Al Said, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, R. Ayad, V. Babu, I. Badhrees, A. M. Bakich, V. Bansal, P. Behera, C. Beleño, M. Berger, V. Bhardwaj & 187 others B. Bhuyan, T. Bilka, J. Biswal, A. Bobrov, G. Bonvicini, A. Bozek, M. Bračko, T. E. Browder, L. Cao, D. Červenkov, P. Chang, V. Chekelian, A. Chen, B. G. Cheon, K. Chilikin, K. Cho, S. K. Choi, Y. Choi, D. Cinabro, S. Cunliffe, N. Dash, S. Di Carlo, J. Dingfelder, Z. DoleŽal, T. V. Dong, Z. Drásal, S. Eidelman, D. Epifanov, J. E. Fast, T. Ferber, B. G. Fulsom, R. Garg, V. Gaur, N. Gabyshev, A. Garmash, M. Gelb, A. Giri, P. Goldenzweig, B. Golob, E. Guido, J. Haba, K. Hayasaka, H. Hayashii, S. Hirose, W. S. Hou, T. Iijima, K. Inami, G. Inguglia, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, W. W. Jacobs, I. Jaegle, H. B. Jeon, S. Jia, Y. Jin, D. Joffe, K. K. Joo, T. Julius, K. H. Kang, T. Kawasaki, C. Kiesling, D. Y. Kim, H. J. Kim, J. B. Kim, K. T. Kim, S. H. Kim, K. Kinoshita, P. Kodyš, S. Korpar, D. Kotchetkov, P. KriŽan, R. Kroeger, P. Krokovny, T. Kuhr, R. Kulasiri, A. Kuzmin, Youngjoon Kwon, J. S. Lange, I. S. Lee, S. C. Lee, L. K. Li, Y. B. Li, L. Li Gioi, J. Libby, D. Liventsev, M. Lubej, T. Luo, M. Masuda, T. Matsuda, D. Matvienko, M. Merola, H. Miyata, R. Mizuk, G. B. Mohanty, H. K. Moon, T. Mori, R. Mussa, M. Nakao, T. Nanut, K. J. Nath, Z. Natkaniec, M. Nayak, M. Niiyama, N. K. Nisar, S. Nishida, S. Ogawa, S. Okuno, H. Ono, P. Pakhlov, G. Pakhlova, B. Pal, S. Pardi, H. Park, S. Paul, T. K. Pedlar, R. Pestotnik, L. E. Piilonen, V. Popov, E. Prencipe, A. Rabusov, A. Rostomyan, G. Russo, D. Sahoo, Y. Sakai, M. Salehi, S. Sandilya, L. Santelj, T. Sanuki, V. Savinov, O. Schneider, G. Schnell, C. Schwanda, R. Seidl, Y. Seino, K. Senyo, O. Seon, M. E. Sevior, V. Shebalin, C. P. Shen, T. A. Shibata, J. G. Shiu, F. Simon, A. Sokolov, E. Solovieva, M. Starič, J. F. Strube, M. Sumihama, T. Sumiyoshi, W. Sutcliffe, K. Suzuki, M. Takizawa, U. Tamponi, K. Tanida, F. Tenchini, M. Uchida, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, S. E. Vahsen, C. Van Hulse, R. Van Tonder, G. Varner, A. Vinokurova, V. Vorobyev, E. Waheed, B. Wang, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, S. Watanuki, E. Widmann, E. Won, H. Ye, J. Yelton, J. H. Yin, C. Z. Yuan, Y. Yusa, Z. P. Zhang, V. Zhilich, V. Zhukova, V. Zhulanov, A. Zupanc

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Abstract

We report the first observation of the spontaneous polarization of Λ and Λ hyperons transverse to the production plane in e+e- annihilation, which is attributed to the effect arising from a polarizing fragmentation function. For inclusive Λ/Λ production, we also report results with subtracted feed-down contributions from Σ0 and charm. This measurement uses a dataset of 800.4 fb-1 collected by the Belle experiment at or near a center-of-mass energy of 10.58 GeV. We observe a significant polarization that rises with the fractional energy carried by the Λ/Λ hyperon.

Original languageEnglish
Article number042001
JournalPhysical Review Letters
Volume122
Issue number4
DOIs
Publication statusPublished - 2019 Jan 1

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hyperons
polarization
center of mass
fragmentation
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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Guan, Y., Vossen, A., Adachi, I., Adamczyk, K., Ahn, J. K., Aihara, H., ... Zupanc, A. (2019). Observation of Transverse Λ / Λ Hyperon Polarization in e+e- Annihilation at Belle. Physical Review Letters, 122(4), [042001]. https://doi.org/10.1103/PhysRevLett.122.042001
Guan, Y. ; Vossen, A. ; Adachi, I. ; Adamczyk, K. ; Ahn, J. K. ; Aihara, H. ; Al Said, S. ; Asner, D. M. ; Atmacan, H. ; Aulchenko, V. ; Aushev, T. ; Ayad, R. ; Babu, V. ; Badhrees, I. ; Bakich, A. M. ; Bansal, V. ; Behera, P. ; Beleño, C. ; Berger, M. ; Bhardwaj, V. ; Bhuyan, B. ; Bilka, T. ; Biswal, J. ; Bobrov, A. ; Bonvicini, G. ; Bozek, A. ; Bračko, M. ; Browder, T. E. ; Cao, L. ; Červenkov, D. ; Chang, P. ; Chekelian, V. ; Chen, A. ; Cheon, B. G. ; Chilikin, K. ; Cho, K. ; Choi, S. K. ; Choi, Y. ; Cinabro, D. ; Cunliffe, S. ; Dash, N. ; Di Carlo, S. ; Dingfelder, J. ; DoleŽal, Z. ; Dong, T. V. ; Drásal, Z. ; Eidelman, S. ; Epifanov, D. ; Fast, J. E. ; Ferber, T. ; Fulsom, B. G. ; Garg, R. ; Gaur, V. ; Gabyshev, N. ; Garmash, A. ; Gelb, M. ; Giri, A. ; Goldenzweig, P. ; Golob, B. ; Guido, E. ; Haba, J. ; Hayasaka, K. ; Hayashii, H. ; Hirose, S. ; Hou, W. S. ; Iijima, T. ; Inami, K. ; Inguglia, G. ; Ishikawa, A. ; Itoh, R. ; Iwasaki, M. ; Iwasaki, Y. ; Jacobs, W. W. ; Jaegle, I. ; Jeon, H. B. ; Jia, S. ; Jin, Y. ; Joffe, D. ; Joo, K. K. ; Julius, T. ; Kang, K. H. ; Kawasaki, T. ; Kiesling, C. ; Kim, D. Y. ; Kim, H. J. ; Kim, J. B. ; Kim, K. T. ; Kim, S. H. ; Kinoshita, K. ; Kodyš, P. ; Korpar, S. ; Kotchetkov, D. ; KriŽan, P. ; Kroeger, R. ; Krokovny, P. ; Kuhr, T. ; Kulasiri, R. ; Kuzmin, A. ; Kwon, Youngjoon ; Lange, J. S. ; Lee, I. S. ; Lee, S. C. ; Li, L. K. ; Li, Y. B. ; Li Gioi, L. ; Libby, J. ; Liventsev, D. ; Lubej, M. ; Luo, T. ; Masuda, M. ; Matsuda, T. ; Matvienko, D. ; Merola, M. ; Miyata, H. ; Mizuk, R. ; Mohanty, G. B. ; Moon, H. K. ; Mori, T. ; Mussa, R. ; Nakao, M. ; Nanut, T. ; Nath, K. J. ; Natkaniec, Z. ; Nayak, M. ; Niiyama, M. ; Nisar, N. K. ; Nishida, S. ; Ogawa, S. ; Okuno, S. ; Ono, H. ; Pakhlov, P. ; Pakhlova, G. ; Pal, B. ; Pardi, S. ; Park, H. ; Paul, S. ; Pedlar, T. K. ; Pestotnik, R. ; Piilonen, L. E. ; Popov, V. ; Prencipe, E. ; Rabusov, A. ; Rostomyan, A. ; Russo, G. ; Sahoo, D. ; Sakai, Y. ; Salehi, M. ; Sandilya, S. ; Santelj, L. ; Sanuki, T. ; Savinov, V. ; Schneider, O. ; Schnell, G. ; Schwanda, C. ; Seidl, R. ; Seino, Y. ; Senyo, K. ; Seon, O. ; Sevior, M. E. ; Shebalin, V. ; Shen, C. P. ; Shibata, T. A. ; Shiu, J. G. ; Simon, F. ; Sokolov, A. ; Solovieva, E. ; Starič, M. ; Strube, J. F. ; Sumihama, M. ; Sumiyoshi, T. ; Sutcliffe, W. ; Suzuki, K. ; Takizawa, M. ; Tamponi, U. ; Tanida, K. ; Tenchini, F. ; Uchida, M. ; Uglov, T. ; Unno, Y. ; Uno, S. ; Urquijo, P. ; Usov, Y. ; Vahsen, S. E. ; Van Hulse, C. ; Van Tonder, R. ; Varner, G. ; Vinokurova, A. ; Vorobyev, V. ; Waheed, E. ; Wang, B. ; Wang, C. H. ; Wang, M. Z. ; Wang, P. ; Wang, X. L. ; Watanuki, S. ; Widmann, E. ; Won, E. ; Ye, H. ; Yelton, J. ; Yin, J. H. ; Yuan, C. Z. ; Yusa, Y. ; Zhang, Z. P. ; Zhilich, V. ; Zhukova, V. ; Zhulanov, V. ; Zupanc, A. / Observation of Transverse Λ / Λ Hyperon Polarization in e+e- Annihilation at Belle. In: Physical Review Letters. 2019 ; Vol. 122, No. 4.
@article{f9b365724fa446f2b5fc7264446192ea,
title = "Observation of Transverse Λ / Λ Hyperon Polarization in e+e- Annihilation at Belle",
abstract = "We report the first observation of the spontaneous polarization of Λ and Λ hyperons transverse to the production plane in e+e- annihilation, which is attributed to the effect arising from a polarizing fragmentation function. For inclusive Λ/Λ production, we also report results with subtracted feed-down contributions from Σ0 and charm. This measurement uses a dataset of 800.4 fb-1 collected by the Belle experiment at or near a center-of-mass energy of 10.58 GeV. We observe a significant polarization that rises with the fractional energy carried by the Λ/Λ hyperon.",
author = "Y. Guan and A. Vossen and I. Adachi and K. Adamczyk and Ahn, {J. K.} and H. Aihara and {Al Said}, S. and Asner, {D. M.} and H. Atmacan and V. Aulchenko and T. Aushev and R. Ayad and V. Babu and I. Badhrees and Bakich, {A. M.} and V. Bansal and P. Behera and C. Bele{\~n}o and M. Berger and V. Bhardwaj and B. Bhuyan and T. Bilka and J. Biswal and A. Bobrov and G. Bonvicini and A. Bozek and M. Bračko and Browder, {T. E.} and L. Cao and D. Červenkov and P. Chang and V. Chekelian and A. Chen and Cheon, {B. G.} and K. Chilikin and K. Cho and Choi, {S. K.} and Y. Choi and D. Cinabro and S. Cunliffe and N. Dash and {Di Carlo}, S. and J. Dingfelder and Z. DoleŽal and Dong, {T. V.} and Z. Dr{\'a}sal and S. Eidelman and D. Epifanov and Fast, {J. E.} and T. Ferber and Fulsom, {B. G.} and R. Garg and V. Gaur and N. Gabyshev and A. Garmash and M. Gelb and A. Giri and P. Goldenzweig and B. Golob and E. Guido and J. Haba and K. Hayasaka and H. Hayashii and S. Hirose and Hou, {W. S.} and T. Iijima and K. Inami and G. Inguglia and A. Ishikawa and R. Itoh and M. Iwasaki and Y. Iwasaki and Jacobs, {W. W.} and I. Jaegle and Jeon, {H. B.} and S. Jia and Y. Jin and D. Joffe and Joo, {K. K.} and T. Julius and Kang, {K. H.} and T. Kawasaki and C. Kiesling and Kim, {D. Y.} and Kim, {H. J.} and Kim, {J. B.} and Kim, {K. T.} and Kim, {S. H.} and K. Kinoshita and P. Kodyš and S. Korpar and D. Kotchetkov and P. KriŽan and R. Kroeger and P. Krokovny and T. Kuhr and R. Kulasiri and A. Kuzmin and Youngjoon Kwon and Lange, {J. S.} and Lee, {I. S.} and Lee, {S. C.} and Li, {L. K.} and Li, {Y. B.} and {Li Gioi}, L. and J. Libby and D. Liventsev and M. Lubej and T. Luo and M. Masuda and T. Matsuda and D. Matvienko and M. Merola and H. Miyata and R. Mizuk and Mohanty, {G. B.} and Moon, {H. K.} and T. Mori and R. Mussa and M. Nakao and T. Nanut and Nath, {K. J.} and Z. Natkaniec and M. Nayak and M. Niiyama and Nisar, {N. K.} and S. Nishida and S. Ogawa and S. Okuno and H. Ono and P. Pakhlov and G. Pakhlova and B. Pal and S. Pardi and H. Park and S. Paul and Pedlar, {T. K.} and R. Pestotnik and Piilonen, {L. E.} and V. Popov and E. Prencipe and A. Rabusov and A. Rostomyan and G. Russo and D. Sahoo and Y. Sakai and M. Salehi and S. Sandilya and L. Santelj and T. Sanuki and V. Savinov and O. Schneider and G. Schnell and C. Schwanda and R. Seidl and Y. Seino and K. Senyo and O. Seon and Sevior, {M. E.} and V. Shebalin and Shen, {C. P.} and Shibata, {T. A.} and Shiu, {J. G.} and F. Simon and A. Sokolov and E. Solovieva and M. Starič and Strube, {J. F.} and M. Sumihama and T. Sumiyoshi and W. Sutcliffe and K. Suzuki and M. Takizawa and U. Tamponi and K. Tanida and F. Tenchini and M. Uchida and T. Uglov and Y. Unno and S. Uno and P. Urquijo and Y. Usov and Vahsen, {S. E.} and {Van Hulse}, C. and {Van Tonder}, R. and G. Varner and A. Vinokurova and V. Vorobyev and E. Waheed and B. Wang and Wang, {C. H.} and Wang, {M. Z.} and P. Wang and Wang, {X. L.} and S. Watanuki and E. Widmann and E. Won and H. Ye and J. Yelton and Yin, {J. H.} and Yuan, {C. Z.} and Y. Yusa and Zhang, {Z. P.} and V. Zhilich and V. Zhukova and V. Zhulanov and A. Zupanc",
year = "2019",
month = "1",
day = "1",
doi = "10.1103/PhysRevLett.122.042001",
language = "English",
volume = "122",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "4",

}

Guan, Y, Vossen, A, Adachi, I, Adamczyk, K, Ahn, JK, Aihara, H, Al Said, S, Asner, DM, Atmacan, H, Aulchenko, V, Aushev, T, Ayad, R, Babu, V, Badhrees, I, Bakich, AM, Bansal, V, Behera, P, Beleño, C, Berger, M, Bhardwaj, V, Bhuyan, B, Bilka, T, Biswal, J, Bobrov, A, Bonvicini, G, Bozek, A, Bračko, M, Browder, TE, Cao, L, Červenkov, D, Chang, P, Chekelian, V, Chen, A, Cheon, BG, Chilikin, K, Cho, K, Choi, SK, Choi, Y, Cinabro, D, Cunliffe, S, Dash, N, Di Carlo, S, Dingfelder, J, DoleŽal, Z, Dong, TV, Drásal, Z, Eidelman, S, Epifanov, D, Fast, JE, Ferber, T, Fulsom, BG, Garg, R, Gaur, V, Gabyshev, N, Garmash, A, Gelb, M, Giri, A, Goldenzweig, P, Golob, B, Guido, E, Haba, J, Hayasaka, K, Hayashii, H, Hirose, S, Hou, WS, Iijima, T, Inami, K, Inguglia, G, Ishikawa, A, Itoh, R, Iwasaki, M, Iwasaki, Y, Jacobs, WW, Jaegle, I, Jeon, HB, Jia, S, Jin, Y, Joffe, D, Joo, KK, Julius, T, Kang, KH, Kawasaki, T, Kiesling, C, Kim, DY, Kim, HJ, Kim, JB, Kim, KT, Kim, SH, Kinoshita, K, Kodyš, P, Korpar, S, Kotchetkov, D, KriŽan, P, Kroeger, R, Krokovny, P, Kuhr, T, Kulasiri, R, Kuzmin, A, Kwon, Y, Lange, JS, Lee, IS, Lee, SC, Li, LK, Li, YB, Li Gioi, L, Libby, J, Liventsev, D, Lubej, M, Luo, T, Masuda, M, Matsuda, T, Matvienko, D, Merola, M, Miyata, H, Mizuk, R, Mohanty, GB, Moon, HK, Mori, T, Mussa, R, Nakao, M, Nanut, T, Nath, KJ, Natkaniec, Z, Nayak, M, Niiyama, M, Nisar, NK, Nishida, S, Ogawa, S, Okuno, S, Ono, H, Pakhlov, P, Pakhlova, G, Pal, B, Pardi, S, Park, H, Paul, S, Pedlar, TK, Pestotnik, R, Piilonen, LE, Popov, V, Prencipe, E, Rabusov, A, Rostomyan, A, Russo, G, Sahoo, D, Sakai, Y, Salehi, M, Sandilya, S, Santelj, L, Sanuki, T, Savinov, V, Schneider, O, Schnell, G, Schwanda, C, Seidl, R, Seino, Y, Senyo, K, Seon, O, Sevior, ME, Shebalin, V, Shen, CP, Shibata, TA, Shiu, JG, Simon, F, Sokolov, A, Solovieva, E, Starič, M, Strube, JF, Sumihama, M, Sumiyoshi, T, Sutcliffe, W, Suzuki, K, Takizawa, M, Tamponi, U, Tanida, K, Tenchini, F, Uchida, M, Uglov, T, Unno, Y, Uno, S, Urquijo, P, Usov, Y, Vahsen, SE, Van Hulse, C, Van Tonder, R, Varner, G, Vinokurova, A, Vorobyev, V, Waheed, E, Wang, B, Wang, CH, Wang, MZ, Wang, P, Wang, XL, Watanuki, S, Widmann, E, Won, E, Ye, H, Yelton, J, Yin, JH, Yuan, CZ, Yusa, Y, Zhang, ZP, Zhilich, V, Zhukova, V, Zhulanov, V & Zupanc, A 2019, 'Observation of Transverse Λ / Λ Hyperon Polarization in e+e- Annihilation at Belle', Physical Review Letters, vol. 122, no. 4, 042001. https://doi.org/10.1103/PhysRevLett.122.042001

Observation of Transverse Λ / Λ Hyperon Polarization in e+e- Annihilation at Belle. / Guan, Y.; Vossen, A.; Adachi, I.; Adamczyk, K.; Ahn, J. K.; Aihara, H.; Al Said, S.; Asner, D. M.; Atmacan, H.; Aulchenko, V.; Aushev, T.; Ayad, R.; Babu, V.; Badhrees, I.; Bakich, A. M.; Bansal, V.; Behera, P.; Beleño, C.; Berger, M.; Bhardwaj, V.; Bhuyan, B.; Bilka, T.; Biswal, J.; Bobrov, A.; Bonvicini, G.; Bozek, A.; Bračko, M.; Browder, T. E.; Cao, L.; Červenkov, D.; Chang, P.; Chekelian, V.; Chen, A.; Cheon, B. G.; Chilikin, K.; Cho, K.; Choi, S. K.; Choi, Y.; Cinabro, D.; Cunliffe, S.; Dash, N.; Di Carlo, S.; Dingfelder, J.; DoleŽal, Z.; Dong, T. V.; Drásal, Z.; Eidelman, S.; Epifanov, D.; Fast, J. E.; Ferber, T.; Fulsom, B. G.; Garg, R.; Gaur, V.; Gabyshev, N.; Garmash, A.; Gelb, M.; Giri, A.; Goldenzweig, P.; Golob, B.; Guido, E.; Haba, J.; Hayasaka, K.; Hayashii, H.; Hirose, S.; Hou, W. S.; Iijima, T.; Inami, K.; Inguglia, G.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Jacobs, W. W.; Jaegle, I.; Jeon, H. B.; Jia, S.; Jin, Y.; Joffe, D.; Joo, K. K.; Julius, T.; Kang, K. H.; Kawasaki, T.; Kiesling, C.; Kim, D. Y.; Kim, H. J.; Kim, J. B.; Kim, K. T.; Kim, S. H.; Kinoshita, K.; Kodyš, P.; Korpar, S.; Kotchetkov, D.; KriŽan, P.; Kroeger, R.; Krokovny, P.; Kuhr, T.; Kulasiri, R.; Kuzmin, A.; Kwon, Youngjoon; Lange, J. S.; Lee, I. S.; Lee, S. C.; Li, L. K.; Li, Y. B.; Li Gioi, L.; Libby, J.; Liventsev, D.; Lubej, M.; Luo, T.; Masuda, M.; Matsuda, T.; Matvienko, D.; Merola, M.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Moon, H. K.; Mori, T.; Mussa, R.; Nakao, M.; Nanut, T.; Nath, K. J.; Natkaniec, Z.; Nayak, M.; Niiyama, M.; Nisar, N. K.; Nishida, S.; Ogawa, S.; Okuno, S.; Ono, H.; Pakhlov, P.; Pakhlova, G.; Pal, B.; Pardi, S.; Park, H.; Paul, S.; Pedlar, T. K.; Pestotnik, R.; Piilonen, L. E.; Popov, V.; Prencipe, E.; Rabusov, A.; Rostomyan, A.; Russo, G.; Sahoo, D.; Sakai, Y.; Salehi, M.; Sandilya, S.; Santelj, L.; Sanuki, T.; Savinov, V.; Schneider, O.; Schnell, G.; Schwanda, C.; Seidl, R.; Seino, Y.; Senyo, K.; Seon, O.; Sevior, M. E.; Shebalin, V.; Shen, C. P.; Shibata, T. A.; Shiu, J. G.; Simon, F.; Sokolov, A.; Solovieva, E.; Starič, M.; Strube, J. F.; Sumihama, M.; Sumiyoshi, T.; Sutcliffe, W.; Suzuki, K.; Takizawa, M.; Tamponi, U.; Tanida, K.; Tenchini, F.; Uchida, M.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Usov, Y.; Vahsen, S. E.; Van Hulse, C.; Van Tonder, R.; Varner, G.; Vinokurova, A.; Vorobyev, V.; Waheed, E.; Wang, B.; Wang, C. H.; Wang, M. Z.; Wang, P.; Wang, X. L.; Watanuki, S.; Widmann, E.; Won, E.; Ye, H.; Yelton, J.; Yin, J. H.; Yuan, C. Z.; Yusa, Y.; Zhang, Z. P.; Zhilich, V.; Zhukova, V.; Zhulanov, V.; Zupanc, A.

In: Physical Review Letters, Vol. 122, No. 4, 042001, 01.01.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Observation of Transverse Λ / Λ Hyperon Polarization in e+e- Annihilation at Belle

AU - Guan, Y.

AU - Vossen, A.

AU - Adachi, I.

AU - Adamczyk, K.

AU - Ahn, J. K.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Atmacan, H.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Ayad, R.

AU - Babu, V.

AU - Badhrees, I.

AU - Bakich, A. M.

AU - Bansal, V.

AU - Behera, P.

AU - Beleño, C.

AU - Berger, M.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Bilka, T.

AU - Biswal, J.

AU - Bobrov, A.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Cao, L.

AU - Červenkov, D.

AU - Chang, P.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, K.

AU - Choi, S. K.

AU - Choi, Y.

AU - Cinabro, D.

AU - Cunliffe, S.

AU - Dash, N.

AU - Di Carlo, S.

AU - Dingfelder, J.

AU - DoleŽal, Z.

AU - Dong, T. V.

AU - Drásal, Z.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Fast, J. E.

AU - Ferber, T.

AU - Fulsom, B. G.

AU - Garg, R.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Gelb, M.

AU - Giri, A.

AU - Goldenzweig, P.

AU - Golob, B.

AU - Guido, E.

AU - Haba, J.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hirose, S.

AU - Hou, W. S.

AU - Iijima, T.

AU - Inami, K.

AU - Inguglia, G.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Iwasaki, Y.

AU - Jacobs, W. W.

AU - Jaegle, I.

AU - Jeon, H. B.

AU - Jia, S.

AU - Jin, Y.

AU - Joffe, D.

AU - Joo, K. K.

AU - Julius, T.

AU - Kang, K. H.

AU - Kawasaki, T.

AU - Kiesling, C.

AU - Kim, D. Y.

AU - Kim, H. J.

AU - Kim, J. B.

AU - Kim, K. T.

AU - Kim, S. H.

AU - Kinoshita, K.

AU - Kodyš, P.

AU - Korpar, S.

AU - Kotchetkov, D.

AU - KriŽan, P.

AU - Kroeger, R.

AU - Krokovny, P.

AU - Kuhr, T.

AU - Kulasiri, R.

AU - Kuzmin, A.

AU - Kwon, Youngjoon

AU - Lange, J. S.

AU - Lee, I. S.

AU - Lee, S. C.

AU - Li, L. K.

AU - Li, Y. B.

AU - Li Gioi, L.

AU - Libby, J.

AU - Liventsev, D.

AU - Lubej, M.

AU - Luo, T.

AU - Masuda, M.

AU - Matsuda, T.

AU - Matvienko, D.

AU - Merola, M.

AU - Miyata, H.

AU - Mizuk, R.

AU - Mohanty, G. B.

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AU - Zhulanov, V.

AU - Zupanc, A.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - We report the first observation of the spontaneous polarization of Λ and Λ hyperons transverse to the production plane in e+e- annihilation, which is attributed to the effect arising from a polarizing fragmentation function. For inclusive Λ/Λ production, we also report results with subtracted feed-down contributions from Σ0 and charm. This measurement uses a dataset of 800.4 fb-1 collected by the Belle experiment at or near a center-of-mass energy of 10.58 GeV. We observe a significant polarization that rises with the fractional energy carried by the Λ/Λ hyperon.

AB - We report the first observation of the spontaneous polarization of Λ and Λ hyperons transverse to the production plane in e+e- annihilation, which is attributed to the effect arising from a polarizing fragmentation function. For inclusive Λ/Λ production, we also report results with subtracted feed-down contributions from Σ0 and charm. This measurement uses a dataset of 800.4 fb-1 collected by the Belle experiment at or near a center-of-mass energy of 10.58 GeV. We observe a significant polarization that rises with the fractional energy carried by the Λ/Λ hyperon.

UR - http://www.scopus.com/inward/record.url?scp=85060981822&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85060981822&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.122.042001

DO - 10.1103/PhysRevLett.122.042001

M3 - Article

VL - 122

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 4

M1 - 042001

ER -