Observation of an enhancement in e+e-→Υ(1S) πn+n-→Υ(2S)n+n- and (3S)n+n- production near s = 10.89 GeV

K. F. Chen; W. S. Hou; I. Adachi; H. Aihara; T. Aushev; A. M. Bakich; V. Balagura; A. Bay; K. Belous; V. Bhardwaj; M. Bischofberger; A. Bondar; A. Bozek; M. Bračko; J. Brodzicka; T. E. Browder; M. C. Chang; P. Chang; Y. Chao; A. Chen; P. Chen; B. G. Cheon; C. C. Chiang; R. Chistov; I. S. Cho; Y. Choi; J. Dalseno; A. Drutskoy; S. Eidelman; D. Epifanov; N. Gabyshev; P. Goldenzweig; H. Ha; B. Y. Han; K. Hayasaka; H. Hayashii; M. Hazumi; Y. Hoshi; Y. B. Hsiung; H. J. Hyun; T. Iijima; K. Inami; R. Itoh; M. Iwabuchi; Y. Iwasaki; T. Julius; D. H. Kah; J. H. Kang; N. Katayama; C. Kiesling; H. O. Kim; Y. I. Kim; Y. J. Kim; K. Kinoshita; B. R. Ko; S. Korpar; P. Kriaan; P. Krokovny; Y. J. Kwon; S. H. Kyeong; J. S. Lange; S. H. Lee; J. Li; C. Liu; Y. Liu; D. Liventsev; R. Louvot; J. MacNaughton; A. Matyja; S. McOnie; K. Miyabayashi; H. Miyata; Y. Miyazaki; R. Mizuk; Y. Nagasaka; E. Nakano; M. Nakao; S. Nishida; K. Nishimura; O. Nitoh; T. Nozaki; S. Ogawa; T. Ohshima; S. Okuno; G. Pakhlova; H. Park; H. K. Park; R. Pestotnik; M. Petrič; L. E. Piilonen; S. Ryu; H. Sahoo; K. Sakai; Y. Sakai; O. Schneider; C. Schwanda; A. J. Schwartz; R. Seidl; K. Senyo; M. Shapkin; C. P. Shen; J. G. Shiu; B. Shwartz; P. Smerkol; A. Sokolov; E. Solovieva; S. Stanič; M. Starič; K. Sumisawa; T. Sumiyoshi; S. Suzuki; Y. Teramoto; 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; J. Wicht; E. Won; B. D. Yabsley; Y. Yamashita; C. Z. Yuan; Z. P. Zhang; V. Zhulanov; A. Zupanc; O. Zyukova

doi:10.1103/PhysRevD.82.091106

Observation of an enhancement in e⁺e^-→Υ(1S) πn⁺n^-→Υ(2S)n⁺n^- and (3S)n⁺n^- production near s = 10.89 GeV

K. F. Chen, W. S. Hou, I. Adachi, H. Aihara, T. Aushev, A. M. Bakich, V. Balagura, A. Bay, K. Belous, V. Bhardwaj, M. Bischofberger, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, M. C. Chang, P. Chang, Y. Chao, A. ChenP. Chen, B. G. Cheon, C. C. Chiang, R. Chistov, I. S. Cho, Y. Choi, J. Dalseno, A. Drutskoy, S. Eidelman, D. Epifanov, N. Gabyshev, P. Goldenzweig, H. Ha, B. Y. Han, K. Hayasaka, H. Hayashii, M. Hazumi, Y. Hoshi, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, R. Itoh, M. Iwabuchi, Y. Iwasaki, T. Julius, D. H. Kah, J. H. Kang, N. Katayama, C. Kiesling, H. O. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, S. Korpar, P. Kriaan, P. Krokovny, Y. J. Kwon, S. H. Kyeong, J. S. Lange, S. H. Lee, J. Li, C. Liu, Y. Liu, D. Liventsev, R. Louvot, J. MacNaughton, A. Matyja, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, Y. Nagasaka, E. Nakano, M. Nakao, S. Nishida, K. Nishimura, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, G. Pakhlova, H. Park, H. K. Park, R. Pestotnik, M. Petrič, L. E. Piilonen, S. Ryu, H. Sahoo, K. Sakai, Y. Sakai, O. Schneider, C. Schwanda, A. J. Schwartz, R. Seidl, K. Senyo, M. Shapkin, C. P. Shen, J. G. Shiu, B. Shwartz, P. Smerkol, A. Sokolov, E. Solovieva, S. Stanič, M. Starič, K. Sumisawa, T. Sumiyoshi, S. Suzuki, Y. Teramoto, 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, J. Wicht, E. Won, B. D. Yabsley, Y. Yamashita, C. Z. Yuan, Z. P. Zhang, V. Zhulanov, A. Zupanc, O. Zyukova

Department of Physics

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

85 Citations (Scopus)

Abstract

We measure the production cross sections for e⁺e ^-→Υ(1S)π⁺π^-, Υ(2S)π⁺π^-, and Υ(3S) π⁺π^- as a function of √s between 10.83 GeV and 11.02 GeV. The data consist of 8.1fb^-1 collected with the Belle detector at the KEKB e⁺e^- collider. We observe enhanced production in all three final states that does not agree well with the conventional Υ(10860) line shape. A fit using a Breit-Wigner resonance shape yields a peak mass of [10888.4-2.6+2.7(stat)±1.2(syst)]MeV/c2 and a width of [30.7-7.0+8.3(stat)±3.1(syst)]MeV/c2.

Original language	English
Article number	091106
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	82
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.82.091106
Publication status	Published - 2010 Nov 30

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.82.091106

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Chen, K. F., Hou, W. S., Adachi, I., Aihara, H., Aushev, T., Bakich, A. M., Balagura, V., Bay, A., Belous, K., Bhardwaj, V., Bischofberger, M., Bondar, A., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., Chang, M. C., Chang, P., Chao, Y., ... Zyukova, O. (2010). Observation of an enhancement in e⁺e^-→Υ(1S) πn⁺n^-→Υ(2S)n⁺n^- and (3S)n⁺n^- production near s = 10.89 GeV. Physical Review D - Particles, Fields, Gravitation and Cosmology, 82(9), [091106]. https://doi.org/10.1103/PhysRevD.82.091106

Chen, KF, Hou, WS, Adachi, I, Aihara, H, Aushev, T, Bakich, AM, Balagura, V, Bay, A, Belous, K, Bhardwaj, V, Bischofberger, M, Bondar, A, Bozek, A, Bračko, M, Brodzicka, J, Browder, TE, Chang, MC, Chang, P, Chao, Y, Chen, A, Chen, P, Cheon, BG, Chiang, CC, Chistov, R, Cho, IS, Choi, Y, Dalseno, J, Drutskoy, A, Eidelman, S, Epifanov, D, Gabyshev, N, Goldenzweig, P, Ha, H, Han, BY, Hayasaka, K, Hayashii, H, Hazumi, M, Hoshi, Y, Hsiung, YB, Hyun, HJ, Iijima, T, Inami, K, Itoh, R, Iwabuchi, M, Iwasaki, Y, Julius, T, Kah, DH, Kang, JH, Katayama, N, Kiesling, C, Kim, HO, Kim, YI, Kim, YJ, Kinoshita, K, Ko, BR, Korpar, S, Kriaan, P, Krokovny, P, Kwon, YJ, Kyeong, SH, Lange, JS, Lee, SH, Li, J, Liu, C, Liu, Y, Liventsev, D, Louvot, R, MacNaughton, J, Matyja, A, McOnie, S, Miyabayashi, K, Miyata, H, Miyazaki, Y, Mizuk, R, Nagasaka, Y, Nakano, E, Nakao, M, Nishida, S, Nishimura, K, Nitoh, O, Nozaki, T, Ogawa, S, Ohshima, T, Okuno, S, Pakhlova, G, Park, H, Park, HK, Pestotnik, R, Petrič, M, Piilonen, LE, Ryu, S, Sahoo, H, Sakai, K, Sakai, Y, Schneider, O, Schwanda, C, Schwartz, AJ, Seidl, R, Senyo, K, Shapkin, M, Shen, CP, Shiu, JG, Shwartz, B, Smerkol, P, Sokolov, A, Solovieva, E, Stanič, S, Starič, M, Sumisawa, K, Sumiyoshi, T, Suzuki, S, Teramoto, Y, 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, Wicht, J, Won, E, Yabsley, BD, Yamashita, Y, Yuan, CZ, Zhang, ZP, Zhulanov, V, Zupanc, A & Zyukova, O 2010, 'Observation of an enhancement in e⁺e^-→Υ(1S) πn⁺n^-→Υ(2S)n⁺n^- and (3S)n⁺n^- production near s = 10.89 GeV', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 82, no. 9, 091106. https://doi.org/10.1103/PhysRevD.82.091106

@article{3f980d85d1254d9abec377c09a8dd753,

title = "Observation of an enhancement in e+e-→Υ(1S) πn+n-→Υ(2S)n+n- and (3S)n+n- production near s = 10.89 GeV",

abstract = "We measure the production cross sections for e+e -→Υ(1S)π+π-, Υ(2S)π+π-, and Υ(3S) π+π- as a function of √s between 10.83 GeV and 11.02 GeV. The data consist of 8.1fb-1 collected with the Belle detector at the KEKB e+e- collider. We observe enhanced production in all three final states that does not agree well with the conventional Υ(10860) line shape. A fit using a Breit-Wigner resonance shape yields a peak mass of [10888.4-2.6+2.7(stat)±1.2(syst)]MeV/c2 and a width of [30.7-7.0+8.3(stat)±3.1(syst)]MeV/c2.",

author = "Chen, {K. F.} and Hou, {W. S.} and I. Adachi and H. Aihara and T. Aushev and Bakich, {A. M.} and V. Balagura and A. Bay and K. Belous and V. Bhardwaj and M. Bischofberger and A. Bondar and A. Bozek and M. Bra{\v c}ko and J. Brodzicka and Browder, {T. E.} and Chang, {M. C.} and P. Chang and Y. Chao and A. Chen and P. Chen and Cheon, {B. G.} and Chiang, {C. C.} and R. Chistov and Cho, {I. S.} and Y. Choi and J. Dalseno and A. Drutskoy and S. Eidelman and D. Epifanov and N. Gabyshev and P. Goldenzweig and H. Ha and Han, {B. Y.} and K. Hayasaka and H. Hayashii and M. Hazumi and Y. Hoshi and Hsiung, {Y. B.} and Hyun, {H. J.} and T. Iijima and K. Inami and R. Itoh and M. Iwabuchi and Y. Iwasaki and T. Julius and Kah, {D. H.} and Kang, {J. H.} and N. Katayama and C. Kiesling and Kim, {H. O.} and Kim, {Y. I.} and Kim, {Y. J.} and K. Kinoshita and Ko, {B. R.} and S. Korpar and P. Kriaan and P. Krokovny and Kwon, {Y. J.} and Kyeong, {S. H.} and Lange, {J. S.} and Lee, {S. H.} and J. Li and C. Liu and Y. Liu and D. Liventsev and R. Louvot and J. MacNaughton and A. Matyja and S. McOnie and K. Miyabayashi and H. Miyata and Y. Miyazaki and R. Mizuk and Y. Nagasaka and E. Nakano and M. Nakao and S. Nishida and K. Nishimura and O. Nitoh and T. Nozaki and S. Ogawa and T. Ohshima and S. Okuno and G. Pakhlova and H. Park and Park, {H. K.} and R. Pestotnik and M. Petri{\v c} and Piilonen, {L. E.} and S. Ryu and H. Sahoo and K. Sakai and Y. Sakai and O. Schneider and C. Schwanda and Schwartz, {A. J.} and R. Seidl and K. Senyo and M. Shapkin and Shen, {C. P.} and Shiu, {J. G.} and B. Shwartz and P. Smerkol and A. Sokolov and E. Solovieva and S. Stani{\v c} and M. Stari{\v c} and K. Sumisawa and T. Sumiyoshi and S. Suzuki and Y. Teramoto 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 J. Wicht and E. Won and Yabsley, {B. D.} and Y. Yamashita and Yuan, {C. Z.} and Zhang, {Z. P.} and V. Zhulanov and A. Zupanc and O. Zyukova",

year = "2010",

month = nov,

day = "30",

doi = "10.1103/PhysRevD.82.091106",

language = "English",

volume = "82",

journal = "Physical review D: Particles and fields",

issn = "0556-2821",

publisher = "American Institute of Physics Publising LLC",

number = "9",

}

TY - JOUR

T1 - Observation of an enhancement in e+e-→Υ(1S) πn+n-→Υ(2S)n+n- and (3S)n+n- production near s = 10.89 GeV

AU - Chen, K. F.

AU - Hou, W. S.

AU - Adachi, I.

AU - Aihara, H.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Balagura, V.

AU - Bay, A.

AU - Belous, K.

AU - Bhardwaj, V.

AU - Bischofberger, M.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Brodzicka, J.

AU - Browder, T. E.

AU - Chang, M. C.

AU - Chang, P.

AU - Chao, Y.

AU - Chen, A.

AU - Chen, P.

AU - Cheon, B. G.

AU - Chiang, C. C.

AU - Chistov, R.

AU - Cho, I. S.

AU - Choi, Y.

AU - Dalseno, J.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Gabyshev, N.

AU - Goldenzweig, P.

AU - Ha, H.

AU - Han, B. Y.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Hoshi, Y.

AU - Hsiung, Y. B.

AU - Hyun, H. J.

AU - Iijima, T.

AU - Inami, K.

AU - Itoh, R.

AU - Iwabuchi, M.

AU - Iwasaki, Y.

AU - Julius, T.

AU - Kah, D. H.

AU - Kang, J. H.

AU - Katayama, N.

AU - Kiesling, C.

AU - Kim, H. O.

AU - Kim, Y. I.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Ko, B. R.

AU - Korpar, S.

AU - Kriaan, P.

AU - Krokovny, P.

AU - Kwon, Y. J.

AU - Kyeong, S. H.

AU - Lange, J. S.

AU - Lee, S. H.

AU - Li, J.

AU - Liu, C.

AU - Liu, Y.

AU - Liventsev, D.

AU - Louvot, R.

AU - MacNaughton, J.

AU - Matyja, A.

AU - McOnie, S.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Miyazaki, Y.

AU - Mizuk, R.

AU - Nagasaka, Y.

AU - Nakano, E.

AU - Nakao, M.

AU - Nishida, S.

AU - Nishimura, K.

AU - Nitoh, O.

AU - Nozaki, T.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okuno, S.

AU - Pakhlova, G.

AU - Park, H.

AU - Park, H. K.

AU - Pestotnik, R.

AU - Petrič, M.

AU - Piilonen, L. E.

AU - Ryu, S.

AU - Sahoo, H.

AU - Sakai, K.

AU - Sakai, Y.

AU - Schneider, O.

AU - Schwanda, C.

AU - Schwartz, A. J.

AU - Seidl, R.

AU - Senyo, K.

AU - Shapkin, M.

AU - Shen, C. P.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Smerkol, P.

AU - Sokolov, A.

AU - Solovieva, E.

AU - Stanič, S.

AU - Starič, M.

AU - Sumisawa, K.

AU - Sumiyoshi, T.

AU - Suzuki, S.

AU - Teramoto, Y.

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 - Wicht, J.

AU - Won, E.

AU - Yabsley, B. D.

AU - Yamashita, Y.

AU - Yuan, C. Z.

AU - Zhang, Z. P.

AU - Zhulanov, V.

AU - Zupanc, A.

AU - Zyukova, O.

PY - 2010/11/30

Y1 - 2010/11/30

N2 - We measure the production cross sections for e+e -→Υ(1S)π+π-, Υ(2S)π+π-, and Υ(3S) π+π- as a function of √s between 10.83 GeV and 11.02 GeV. The data consist of 8.1fb-1 collected with the Belle detector at the KEKB e+e- collider. We observe enhanced production in all three final states that does not agree well with the conventional Υ(10860) line shape. A fit using a Breit-Wigner resonance shape yields a peak mass of [10888.4-2.6+2.7(stat)±1.2(syst)]MeV/c2 and a width of [30.7-7.0+8.3(stat)±3.1(syst)]MeV/c2.

AB - We measure the production cross sections for e+e -→Υ(1S)π+π-, Υ(2S)π+π-, and Υ(3S) π+π- as a function of √s between 10.83 GeV and 11.02 GeV. The data consist of 8.1fb-1 collected with the Belle detector at the KEKB e+e- collider. We observe enhanced production in all three final states that does not agree well with the conventional Υ(10860) line shape. A fit using a Breit-Wigner resonance shape yields a peak mass of [10888.4-2.6+2.7(stat)±1.2(syst)]MeV/c2 and a width of [30.7-7.0+8.3(stat)±3.1(syst)]MeV/c2.

UR - http://www.scopus.com/inward/record.url?scp=78651225473&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.82.091106

DO - 10.1103/PhysRevD.82.091106

M3 - Article

AN - SCOPUS:78651225473

SN - 0556-2821

VL - 82

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

IS - 9

M1 - 091106

ER -

Observation of an enhancement in e⁺e^-→Υ(1S) πn⁺n^-→Υ(2S)n⁺n^- and (3S)n⁺n^- production near s = 10.89 GeV

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