Observation of ?(3686) ? ???' decay
Küçük Resim Yok
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Amer Physical Soc
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Using a sample of (27.12 +/- 0.14) x 108 psi(3686) events collected with the BESIII detector, the decay psi(3686) -> A over bar A eta' with eta' subsequently decaying into gamma pi+pi- and eta pi+pi- is observed for the first time. The branching fraction of psi(3686) -> A over bar A eta' is measured to be (7.34 +/- 0.94(stat) +/- 0.43(sys)) x 10-6. No resonant structures are evident in the A eta', over bar A eta' and AA over bar mass spectra.
Açıklama
Anahtar Kelimeler
E(+)E(-), Tof
Kaynak
Physical Review D
WoS Q Değeri
N/A
Scopus Q Değeri
Q1
Cilt
108
Sayı
11
