Search for the semileptonic decay Ds+ ? ?0e+?e
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Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Amer Physical Soc
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
We present the first search for the semileptonic decay D-s(+) -> pi(0)e(+)nu(e) using a data sample of electron-positron collisions recorded with the BESIII detector at center-of-mass energies between 4.178 and 4.226 GeV, corresponding to an integrated luminosity of 6.32 fb(-1). This decay is expected to be sensitive to pi(0)-eta mixing. No significant signal is observed. We set an upper limit of 6.4 x 10(-5) on the branching fraction at the 90% confidence level.
Açıklama
Anahtar Kelimeler
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Kaynak
Physical Review D
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
106
Sayı
11
