Amplitude analysis of e+e- → Υ(nS)π+π- at √s=10.866 GeV

被引:71
作者
Garmash, A. [4 ,5 ]
Bondar, A. [4 ,5 ]
Kuzmin, A. [4 ,5 ]
Abdesselam, A. [56 ]
Adachi, I. [14 ]
Aihara, H. [61 ]
Al Said, S. [56 ,70 ]
Asner, D. M. [48 ]
Aulchenko, V. [4 ,5 ]
Aushev, T. [22 ]
Ayad, R. [56 ]
Bakich, A. M. [55 ]
Bala, A. [49 ]
Bhardwaj, V. [39 ]
Bobrov, A. [4 ,5 ]
Bonvicini, G. [67 ]
Bozek, A. [43 ]
Bracko, M. [23 ,33 ]
Browder, T. E. [13 ]
Cervenkov, D. [6 ]
Chekelian, V. [34 ]
Chen, A. [40 ]
Cheon, B. G. [12 ]
Chilikin, K. [22 ]
Chistov, R. [22 ]
Cho, K. [27 ]
Chobanova, V. [34 ]
Choi, Y. [54 ]
Cinabro, D. [67 ]
Dalseno, J. [34 ,58 ]
Dolezal, Z. [6 ]
Drutskoy, A. [22 ,36 ]
Dutta, D. [16 ]
Eidelman, S. [4 ,5 ]
Epifanov, D. [61 ]
Farhat, H. [67 ]
Fast, J. E. [48 ]
Ferber, T. [9 ]
Frey, A. [11 ]
Frost, O. [9 ]
Gaur, V. [57 ]
Ganguly, S. [67 ]
Gillard, R. [67 ]
Glattauer, R. [19 ]
Goh, Y. M. [12 ]
Golob, B. [23 ,31 ]
Haba, J. [14 ]
Hara, T. [14 ]
Hayasaka, K. [38 ]
Hayashii, H. [39 ]
机构
[1] Univ Basque Cty UPV EHU, Bilbao 48080, Spain
[2] Beihang Univ, Beijing 100191, Peoples R China
[3] Univ Bonn, D-53115 Bonn, Germany
[4] Russian Acad Sci, Budker Inst Nucl Phys, SB, Novosibirsk 630090, Russia
[5] Novosibirsk State Univ, Novosibirsk 630090, Russia
[6] Charles Univ Prague, Fac Math & Phys, Prague 12116, Czech Republic
[7] Chiba Univ, Chiba 2638522, Japan
[8] Univ Cincinnati, Cincinnati, OH 45221 USA
[9] Deutsches Elektronen Synchrotron, D-22607 Hamburg, Germany
[10] Univ Giessen, D-35392 Giessen, Germany
[11] Univ Gottingen, Physikal Inst 2, D-37073 Gottingen, Germany
[12] Hanyang Univ, Seoul 133791, South Korea
[13] Univ Hawaii, Honolulu, HI 96822 USA
[14] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan
[15] Ikerbasque, Basque Fdn Sci, E-48011 Bilbao, Spain
[16] Indian Inst Technol Guwahati, Gauhati 781039, Assam, India
[17] Indian Inst Technol Madras, Madras 600036, Tamil Nadu, India
[18] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
[19] Inst High Energy Phys, A-1050 Vienna, Austria
[20] Inst High Energy Phys, Protvino 142281, Russia
[21] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy
[22] Inst Theoret & Expt Phys, Moscow 117218, Russia
[23] J Stefan Inst, Ljubljana 1000, Slovenia
[24] Kanagawa Univ, Yokohama, Kanagawa 2218686, Japan
[25] Univ Karlsruhe, Inst Expt Kernphys, Karlsruhe Inst Technol, D-76131 Karlsruhe, Germany
[26] Univ Tokyo, Kavli inst Phys & Math Universe WPI, Kashiwa, Chiba 2778583, Japan
[27] Korea Inst Sci & Technol Informat, Daejeon 305806, South Korea
[28] Korea Univ, Seoul 136713, South Korea
[29] Kyungpook Natl Univ, Taegu 702701, South Korea
[30] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland
[31] Univ Ljubljana, Fac Math & Phys, Ljubljana 1000, Slovenia
[32] Luther Coll, Decorah, IA 52101 USA
[33] Univ Maribor, Maribor 2000, Slovenia
[34] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany
[35] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia
[36] Moscow Engn Phys Inst, Moscow 115409, Russia
[37] Nagoya Univ, Grad Sch Sci, Nagoya, Aichi 4648602, Japan
[38] Nagoya Univ, Kobayashi Maskawa Inst, Nagoya, Aichi 4648602, Japan
[39] Nara Womens Univ, Nara 6308506, Japan
[40] Natl Cent Univ, Chungli 32054, Taiwan
[41] Natl United Univ, Miaoli 36003, Taiwan
[42] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan
[43] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland
[44] Nippon Dent Univ, Niigata 9518580, Japan
[45] Niigata Univ, Niigata 9502181, Japan
[46] Univ Nova Gorica, Nova Gorica 5000, Slovenia
[47] Osaka City Univ, Osaka 5588585, Japan
[48] Pacific NW Natl Lab, Richland, WA 99352 USA
[49] Panjab Univ, Chandigarh 160014, India
[50] Peking Univ, Beijing 100871, Peoples R China
基金
美国国家科学基金会; 澳大利亚研究理事会; 瑞士国家科学基金会; 日本学术振兴会; 新加坡国家研究基金会; 奥地利科学基金会; 俄罗斯基础研究基金会; 中国国家自然科学基金;
关键词
RADIATIVE-CORRECTIONS;
D O I
10.1103/PhysRevD.91.072003
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report results on studies of the e(+)e(-) annihilation into three-body Upsilon(nS)pi(+)pi(-) (n = 1, 2, 3) final states including measurements of cross sections and the full amplitude analysis. The cross sections measured at root s = 10.866 GeV and corrected for the initial state radiation are sigma(e(+)e(-) --> Upsilon(1S)pi(+)pi(-)) = (2.27 +/- 0.12 +/- 0.14) pb, sigma(e(+)e(-) --> Upsilon(2S)pi(+)pi(-)) = (4.07 +/- 0.16 +/- 0.45) pb, and sigma(e(+)e(-) --> Upsilon(3S)pi(+)pi(-)) = (1.46 +/- 0.09 +/- 0.16) pb. Amplitude analysis of the three-body Upsilon(nS)pi(+)pi(-) final states strongly favors I-G(J(P)) = 1(+)(1(+)) quantum-number assignments for the two bottomonium-like Z(b)(+/-) states, recently observed in the Upsilon(nS)pi(+) and h(b)(mP)pi(+)(m = 1, 2) decay channels. The results are obtained with a 121.4 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.
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页数:16
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