Observation of the electromagnetic Dalitz decay D 0 ? D0e + e ?
Yükleniyor...
Dosyalar
Tarih
2021
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
American Physical Society
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Based on 3.19 fb-1 of e+e- collision data accumulated at the center-of-mass energy 4.178 GeV with the BESIII detector operating at the BEPCII collider, the electromagnetic Dalitz decay D?0?D0e+e- is observed for the first time with a statistical significance of 13.2?. The ratio of the branching fraction of D?0?D0e+e- to that of D?0?D0? is measured to be (11.08±0.76±0.49)×10-3. By using the world average value of the branching fraction of D?0?D0?, the branching fraction of D?0?D0e+e- is determined to be (3.91±0.27±0.17±0.10)×10-3, where the first uncertainty is statistical, the second is systematic and the third is from external input of the branching fraction for D?0?D0?. © 2021 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.
Açıklama
Anahtar Kelimeler
Kaynak
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
104
Sayı
11
Künye
Ablikim, M., Achasov, M. N., Adlarson, P., Ahmed, S., Albrecht, M., Aliberti, R., . . . Zou, J. H. (2021). Observation of the electromagnetic dalitz decay D∗0 →d0e+e-. Physical Review D, 104(11)
