https://scholars.lib.ntu.edu.tw/handle/123456789/606588
標題: | Measurement of the masses and widths of the ?c (2455)+ and ?c (2520)+ baryons | 作者: | PAO-TI CHANG WEI-SHU HOU |
公開日期: | 2021 | 卷: | 104 | 期: | 5 | 來源出版物: | Physical Review D | 摘要: | Using 980 fb-1 of data collected with the Belle detector operating at the KEKB asymmetric-energy e+e- collider, we report the measurements of the masses, and the first measurements of the instrinsic widths, of the ?c(2455)+ and ?c(2520)+ charmed baryons. We find M(?c(2455)+)-M(Λc+)=166.17±0.05-0.07+0.16 MeV/c2, Γ(?c(2455)+)=2.3±0.3±0.3 MeV/c2, M(?c(2520)+)-M(Λc+)=230.9±0.5-0.1+0.5 MeV/c2, and Γ(?c(2520)+)=17.2-2.1-0.7+2.3+3.1 MeV/c2, where the uncertainties are statistical and systematic, respectively. These measurements can be used to test models of the underlying quark structure of the ?c states. ? 2021 authors. Published by the American Physical Society. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85115933213&doi=10.1103%2fPhysRevD.104.052003&partnerID=40&md5=c188254e836351014677f36e5904c11d https://scholars.lib.ntu.edu.tw/handle/123456789/606588 |
ISSN: | 24700010 | DOI: | 10.1103/PhysRevD.104.052003 |
顯示於: | 物理學系 |
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