Measurement of branching fractions for psi(3686) -> gamma eta ', gamma eta, and gamma pi(0)
文献类型：期刊论文
| 作者 | Ablikim, M.1; Achasov, M. N.9,71; Ahmed, S.14; Albrecht, M.4; Alekseev, M.61,63; Amoroso, A.61,63; An, F. F.1; An, Q.44,45,58; Bai, J. Z.1; Bai, Y.43 |
| 刊名 | Physical review d
 |
| 出版日期 | 2017-09-25 |
| 卷号 | 96期号:5页码:9 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/physrevd.96.052003 |
| 通讯作者 | Ablikim, m.() |
| 英文摘要 | Using a data sample of 448 x 10(6) psi(3686) events collected with the besiii detector operating at the bepcii storage ring, the decays psi(3686) -> gamma eta and psi(3686) -> gamma pi(0) are observed with a statistical significance of 7.3 sigma and 6.7 sigma, respectively. the branching fractions are measured to be b(psi(3686) -> gamma eta) = (0.85 +/- 0.18 +/- 0.05) x 10(-6) and b(psi(3686) ->gamma pi(0)) = (0.95 +/- 0.16 +/- 0.05) x 10(-6). in addition, we measure the branching fraction of psi(3686) -> gamma eta' to be b(psi(3686) -> gamma eta') = (125.1 +/- 2.2 +/- 6.2)x10(-6), which represents an improvement of precision over previous results. |
| WOS关键词 | RADIATIVE DECAYS ; PSEUDOSCALAR MESONS |
| 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:000411579700001 |
| 出版者 | AMER PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177064 |
| 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.Bochum Ruhr Univ, D-44780 Bochum, Germany 5.Carnegie Mellon Univ, Pittsburgh, PA 15213 USA 6.Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China 7.China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China 8.COMSATS Inst Informat Technol, Def Rd,Raiwind Rd, Lahore 54000, Pakistan 9.RAS, GI Budker Inst Nucl Phys SB, BINP, Novosibirsk 630090, Russia 10.GS1 Helmholtzctr 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. Measurement of branching fractions for psi(3686) -> gamma eta ', gamma eta, and gamma pi(0)[J]. Physical review d,2017,96(5):9. |
| APA | Ablikim, M..,Achasov, M. N..,Ahmed, S..,Albrecht, M..,Alekseev, M..,...&Zou, J. H..(2017).Measurement of branching fractions for psi(3686) -> gamma eta ', gamma eta, and gamma pi(0).Physical review d,96(5),9. |
| MLA | Ablikim, M.,et al."Measurement of branching fractions for psi(3686) -> gamma eta ', gamma eta, and gamma pi(0)".Physical review d 96.5(2017):9. |
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来源：高能物理研究所
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