Study of the processes ?cJ ? ? ? ? ¯ + and ?0 ? ¯ 0
Yükleniyor...
Dosyalar
Tarih
2022-06
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer Science and Business Media Deutschland GmbH
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Abstract: Using 448.1 × 106?(3686) decays collected with the BESIII detector at the BEPCII e+e? storage rings, the branching fractions and angular distributions of the decays ?cJ? ??? ¯ + and ?0? ¯ 0 (J = 0, 1, 2) are measured based on a partial-reconstruction technique. The decays ?c1? ?0? ¯ 0 and ?c2? ?0? ¯ 0 are observed for the first time with statistical significances of 7? and 15?, respectively. The results of this analysis are in good agreement with previous measurements and have significantly improved precision. [Figure not available: see fulltext.] © 2022, The Author(s).
Açıklama
Anahtar Kelimeler
Branching fraction, e+-e? Experiments, QCD, Quarkonium
Kaynak
Journal of High Energy Physics
WoS Q Değeri
Q2
