Observation of the ??3686? decays into ?+ ? - ? and ?+ ? - ?

Küçük Resim Yok

Tarih

2023

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Amer Physical Soc

Erişim Hakkı

info:eu-repo/semantics/openAccess

Özet

Based on (2712.4 +/- 14.3) x 106 events recorded at the psi(3686) nominal mass collected with the BESIII detector operating at the BEPCII collider, the psi(3686) -> E +/- E over bar -omega and E +/- E over bar -phi decays are observed for the first time with statistical significances of 13.8 sigma and 7.6 sigma, respectively. The corresponding branching fractions are measured to be B(psi (3686) -> E +/- E over bar -omega) = (1.89 +/- 0.18 +/- 0.21) x 10-5 and B(psi (3686) -> E +/- E over bar -phi) = (2.96 +/- 0.54 +/- 0.41) x 10-6, where the first uncertainties are statistical and the second systematic.

Açıklama

Anahtar Kelimeler

Tof

Kaynak

Physical Review D

WoS Q Değeri

N/A

Scopus Q Değeri

Q1

Cilt

108

Sayı

9

Künye