Search for the decay ?c1 (3872) ??+?-?c1
Küçük Resim Yok
Tarih
2024
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
American Physical Society
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Using a data sample corresponding to an integrated luminosity of 10.9 fb-1 collected at center-of-mass energies from 4.16 to 4.34 GeV with the BESIII detector, we search for the decay ?c1(3872)??+?-?c1 in the radiative production e+e-???c1(3872). No significant signal is observed, and the ratio for the branching fraction of ?c1(3872)??+?-?c1 to ?c1(3872)??+?-J/? is measured as RB[?c1(3872)??+?-?c1]B[?c1(3872)??+?-J/?]<0.18 at 90% confidence level. An upper limit on the product of the cross section ?[e+e-???c1(3872)] and the branching fraction B[?c1(3872)??+?-?c1] at each center-of-mass energy is also given. These measurements favor the nonconventional charmonium nature of the ?c1(3872) state. © 2024 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
Scopus Q Değeri
Q1
Cilt
109
Sayı
7
