Measurement of branching fractions of singly cabibbo-suppressed decays ?c+ ? ?0K+ and ?+ KS0
Yükleniyor...
Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
American Physical Society
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Based on a sample of 4.5 fb-1 of e+e- annihilation data collected in the energy region between 4.6 GeV and 4.7 GeV with the BESIII detector at BEPCII, two singly Cabibbo-suppressed decays ?c+??0K+ and ?c+??+KS0 are studied. The ratio of the branching fraction B(?c+??0K+) relative to B(?c+??0?+) is measured to be 0.0361±0.0073(stat.)±0.0005(syst.), and the ratio of B(?c+??+KS0) relative to B(?c+??+?+?-) is measured to be 0.0106±0.0031(stat.)±0.0004(syst.). After taking the world-average branching fractions of the reference decay channels, the branching fractions B(?c+??0K+) and B(?c+??+KS0) are determined to be (4.7±0.9(stat.)±0.1(syst.)±0.3(ref.))×10-4 and (4.8±1.4(stat.)±0.2(syst.)±0.3(ref.))×10-4, respectively. The branching fraction of the ?c+??+KS0 decay is measured for the first time. © 2022 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.
Açıklama
Anahtar Kelimeler
Kaynak
Physical Review D.
WoS Q Değeri
Q1
Scopus Q Değeri
N/A
Cilt
106
Sayı
5
Künye
Ablikim, M., Achasov, M. N., Adlarson, P., Albrecht, M., Aliberti, R., Amoroso, A., . . . (BESIII Collaboration). (2022). Measurement of branching fractions of singly cabibbo-suppressed decays λc+ → ς0K+ and ς+ KS0. Physical Review D, 106(5) doi:10.1103/PhysRevD.106.052003
