Amplitude analysis of the chi(c1) -> eta pi(+)pi(-) decays
文献类型：期刊论文
| 作者 | Ablikim, M.1; Achasov, M. N.9,64; Ahmed, S.14; Ai, X. C.1; Albayrak, O.5; Albrecht, M.4; Ambrose, D. J.48; Amoroso, A.1,53,55; An, F. F.1; An, Q.50 |
| 刊名 | Physical review d
 |
| 出版日期 | 2017-02-13 |
| 卷号 | 95期号:3页码:14 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/physrevd.95.032002 |
| 通讯作者 | Ablikim, m.() |
| 英文摘要 | Using 448.0 x 10(6) psi(3686) events collected with the besiii detector, an amplitude analysis is performed for psi(3686) -> gamma chi(c1), chi(c1) ->eta pi(+)pi(-) decays. the most dominant two- body structure observed is a(0)(980)(+/-) pi(-/+); a(0)(980)(+/-) -> eta pi(+/-.) line shape is modeled using a dispersion relation, and a significant nonzero a(0) (980) coupling to the eta'pi channel is measured. we observe chi(c1) -> a(2)(1700)pi production for the first time, with a significance larger than 17 sigma. the production of mesons with exotic quantum numbers, j(pc) = 1(-+), is investigated, and upper limits for the branching fractions chi(c1) -> pi(1)(1400)(+/-)pi(-/+) , chi(c1) -> pi(1)(1600)(+/-)pi(-/+) and chi(c1) -> pi 1(2015)(+/-)pi(-/+) with subsequent pi(1)(x)(+/-) -> eta pi(+/-) decay, are determined. |
| WOS关键词 | EXOTIC MESON ; PI-ETA ; PI(0)PI(0)ETA ; SYSTEM ; GEV/C |
| 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:000393744600002 |
| 出版者 | AMER PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176793 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Ablikim, M. |
| 作者单位 | 1.Inst High Energy Phys, Beijing 100049, Peoples R China 2.Beihang Univ, Beijing 100191, Peoples R China 3.Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China 4.Ruhr Univ Bochum, D-44780 Bochum, Germany 5.Carnegie Mellon Univ, Pittsburgh, PA 15213 USA 6.Cent China Normal Univ, Wuhan 430079, Peoples R China 7.China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China 8.COMSATS Inst Informat Technol, Lahore 54000, Pakistan 9.GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia 10.GSI Helmholtzcentre Heavy Ion Res GmbH, D-64291 Darmstadt, Germany |
| 推荐引用方式 GB/T 7714 | Ablikim, M.,Achasov, M. N.,Ahmed, S.,et al. Amplitude analysis of the chi(c1) -> eta pi(+)pi(-) decays[J]. Physical review d,2017,95(3):14. |
| APA | Ablikim, M..,Achasov, M. N..,Ahmed, S..,Ai, X. C..,Albayrak, O..,...&Zou, J. H..(2017).Amplitude analysis of the chi(c1) -> eta pi(+)pi(-) decays.Physical review d,95(3),14. |
| MLA | Ablikim, M.,et al."Amplitude analysis of the chi(c1) -> eta pi(+)pi(-) decays".Physical review d 95.3(2017):14. |
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