Precision measurement of the e(+)e(-) -> lambda(+)(c)(lambda)over-bar(c)(-) cross section near threshold
文献类型：期刊论文
| 作者 | Ablikim, M.1; Achasov, M. N.9,72; Ahmed, S.14; Albrecht, M.4; Alekseev, M.61,63; Amoroso, A.61,63; An, F. F.1; An, Q.45,58; Bai, J. Z.1; Bai, Y.44 |
| 刊名 | Physical review letters
 |
| 出版日期 | 2018-03-29 |
| 卷号 | 120期号:13页码:8 |
| ISSN号 | 0031-9007 |
| DOI | 10.1103/physrevlett.120.132001 |
| 通讯作者 | Ablikim, m.() |
| 英文摘要 | The cross section of the e(+)e(-) -> lambda(+)(c)(lambda) over bar (-)(c) process is measured with unprecedented precision using data collected with the besiii detector at root s = 4574.5, 4580.0, 4590.0 and 4599.5 mev. the nonzero cross section near the lambda(+)(c)(lambda) over bar (-)(c) production threshold is cleared. at center-of-mass energies root s = 4574.5 and 4599.5 mev, the higher statistics data enable us to measure the lambda(c) polar angle distributions. from these, the.c electric over magnetic form-factor ratios (vertical bar g(e)/g(m)vertical bar) are measured for the first time. they are found to be 1.14 +/- 0.14 +/- 0.07 and 1.23 +/- 0.05 +/- 0.03, respectively, where the first uncertainties are statistical and the second are systematic. |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000428653700003 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2178214 |
| 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,Off 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. Precision measurement of the e(+)e(-) -> lambda(+)(c)(lambda)over-bar(c)(-) cross section near threshold[J]. Physical review letters,2018,120(13):8. |
| APA | Ablikim, M..,Achasov, M. N..,Ahmed, S..,Albrecht, M..,Alekseev, M..,...&Zou, J. H..(2018).Precision measurement of the e(+)e(-) -> lambda(+)(c)(lambda)over-bar(c)(-) cross section near threshold.Physical review letters,120(13),8. |
| MLA | Ablikim, M.,et al."Precision measurement of the e(+)e(-) -> lambda(+)(c)(lambda)over-bar(c)(-) cross section near threshold".Physical review letters 120.13(2018):8. |
入库方式： iSwitch采集
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。