Search for light tetraquark states in upsilon(1s) and upsilon(2s) decays
文献类型：期刊论文
| 作者 | Jia, S.2; Shen, C. P.2; Yuan, C. Z.25; Adachi, I.12,16; Ahn, J. K.39; Aihara, H.82; Al Said, S.37,76; Asner, D. M.64; Atmacan, H.72; Aushev, T.52 |
| 刊名 | Physical review d
 |
| 出版日期 | 2017-12-05 |
| 卷号 | 96期号:11页码:14 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/physrevd.96.112002 |
| 通讯作者 | Jia, s.() |
| 英文摘要 | We search for the j(pc) = 0(--) and 1(+-) light tetraquark states with masses up to 2.46 gev/c(2) in gamma(1s) and gamma(2s) decays with data samples of (102 +/- 2) million and (158 +/- 4) million events, respectively, collected with the belle detector. no significant signals are observed in any of the studied production modes, and 90% credibility level (c. l.) upper limits on their branching fractions in upsilon(1s) and upsilon(2s) decays are obtained. the inclusive branching fractions of the upsilon(1s) and upsilon(2s) decays into final states with f(1)(1285) are measured to be b(upsilon(1s) -> f(1)(1285) + anything) = (46 +/- 28(stat) +/- 13(syst)) x 10(-4) and b(upsilon(2s) -> f(1)(1285) + anything) = (22 +/- 15(stat) +/- 6.3(syst)) x 10(-4). the measured chi(b2) -> j/psi + anything branching fraction is measured to be (1.50 +/- 0.34(stat) +/- 0.22(syst)) x 10(-3), and 90% c. l. upper limits for the chi(b0;b1) -> j/psi + anything branching fractions are found to be 2.3 x 10(-3) and 1.1 x 10(-3), respectively. for b(chi(b1) -> omega + anything), the branching fraction is measured to be (4.9 +/- 1.3(stat) +/- 0.6(syst) x 10(-2). all results reported here are the first measurements for these modes. |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| WOS类目 | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000417077700001 |
| 出版者 | AMER PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2178268 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Jia, S. |
| 作者单位 | 1.Univ Basque Country, UPV EHU, Bilbao 48080, Spain 2.Beihang Univ, Beijing 100191, Peoples R China 3.Budker Inst Nucl Phys SB RAS, Novosibirsk 630090, Russia 4.Charles Univ Prague, Fac Math & Phys, Prague 12116, Czech Republic 5.Chonnam Natl Univ, Kwangju 660701, South Korea 6.Univ Cincinnati, Cincinnati, OH 45221 USA 7.Deutsches Elektronen Synchrotron, D-22607 Hamburg, Germany 8.Univ Florida, Gainesville, FL 32611 USA 9.Fu Jen Catholic Univ, Dept Phys, Taipei 24205, Taiwan 10.Justus Liebig Univ Giessen, D-35392 Giessen, Germany |
| 推荐引用方式 GB/T 7714 | Jia, S.,Shen, C. P.,Yuan, C. Z.,et al. Search for light tetraquark states in upsilon(1s) and upsilon(2s) decays[J]. Physical review d,2017,96(11):14. |
| APA | Jia, S..,Shen, C. P..,Yuan, C. Z..,Adachi, I..,Ahn, J. K..,...&Zupanc, A..(2017).Search for light tetraquark states in upsilon(1s) and upsilon(2s) decays.Physical review d,96(11),14. |
| MLA | Jia, S.,et al."Search for light tetraquark states in upsilon(1s) and upsilon(2s) decays".Physical review d 96.11(2017):14. |
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