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

来源：

PHYSICAL REVIEW D | 2015年 / 91卷 / 07期

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.

引用

页数：16

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