First Measurement of the Decay Asymmetry in the Pure W-Boson-Exchange Decay ?c plus ? ?0K+
Küçük Resim Yok
Tarih
2024
Yazarlar
Ablikim, M.
Achasov, M. N.
Adlarson, P.
Ai, X. C.
Aliberti, R.
Amoroso, A.
Çetin, Serkant Ali
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Amer Physical Soc
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Based on 4.4 fb-1 of e+e- annihilation data collected at the center-of-mass energies between 4.60 and 4.70 GeV with the BESIII detector at the BEPCII collider, the pure W-boson-exchange decay Lambda+ c -> Xi 0K+ is studied with a full angular analysis. The corresponding decay asymmetry is measured for the first time to be alpha Xi 0K+ = 0.01 10.16(stat) 10.03(syst). This result reflects the noninterference effect between the S- and P-wave amplitudes. The phase shift between S- and P-wave amplitudes has two solutions, which are delta p - delta s = -1.55 10.25(stat) 10.05(syst) rad or 1.59 10.25(stat) 10.05(syst) rad.
Açıklama
Anahtar Kelimeler
Nonleptonic Decays, Charm Baryons, Tof
Kaynak
Physical Review Letters
WoS Q Değeri
N/A
Scopus Q Değeri
Q1
Cilt
132
Sayı
3
