Evidence for e(+)e(-) -> gamma eta(c)(1s) at center-of-mass energies between 4.01 and 4.60 gev
文献类型：期刊论文
| 作者 | Ablikim, M.1; Achasov, M. N.9,70; Ahmed, S.14; Albrecht, M.4; Alekseev, M.60,62; Amoroso, A.60,62; An, F. F.1; An, Q.43,44,57; Bai, J. Z.1; Bai, Y.42 |
| 刊名 | Physical review d
 |
| 出版日期 | 2017-09-06 |
| 卷号 | 96期号:5页码:8 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/physrevd.96.051101 |
| 通讯作者 | Ablikim, m.() |
| 英文摘要 | We present first evidence for the process e(+)e(-) -> gamma eta(c)(1s) at six center-of-mass energies between 4.01 and 4.60 gev using data collected by the besiii experiment operating at bepcii. we measure the born cross section at each energy using a combination of twelve eta(c)(1s) decay channels. we also combine all six energies under various assumptions for the energy-dependence of the cross section. if the process is assumed to proceed via the y(4260), we measure a peak born cross section sigma(peak)(e(+)e(-) -> gamma eta(c)(1s)) = 2.11 +/- 0.49 (stat.) +/- 0.36 (syst.) pb with a statistical significance of 4.2 sigma. |
| 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:000409433900001 |
| 出版者 | AMER PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177023 |
| 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, 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.GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia 10.GSI 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. Evidence for e(+)e(-) -> gamma eta(c)(1s) at center-of-mass energies between 4.01 and 4.60 gev[J]. Physical review d,2017,96(5):8. |
| APA | Ablikim, M..,Achasov, M. N..,Ahmed, S..,Albrecht, M..,Alekseev, M..,...&Zou, J. H..(2017).Evidence for e(+)e(-) -> gamma eta(c)(1s) at center-of-mass energies between 4.01 and 4.60 gev.Physical review d,96(5),8. |
| MLA | Ablikim, M.,et al."Evidence for e(+)e(-) -> gamma eta(c)(1s) at center-of-mass energies between 4.01 and 4.60 gev".Physical review d 96.5(2017):8. |
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