Study of beauty hadron decays into Pairs of charm hadrons


Aaij R., Abba A., Adeva B., Adinolfi M., Affolder A., Ajaltouni Z., ...Daha Fazla

Physical Review Letters, cilt.112, sa.20, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 112 Sayı: 20
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1103/physrevlett.112.202001
  • Dergi Adı: Physical Review Letters
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Manisa Celal Bayar Üniversitesi Adresli: Hayır

Özet

First observations of the decays Λ0 b → Λc+D- (s) are reported using data corresponding to an integrated luminosity of 3 fb-1 collected at 7 and 8 TeV center-of-mass energies in proton-proton collisions with the LHCb detector. In addition, the most precise measurement of the branching fraction B(B0 s → D+D- s) is made and a search is performed for the decays B0 (s) → Λc +Λc -. The results obtained are (Equastion presented) Measurement of the mass of the Λ0 b baryon relative to the B¯0 meson gives M(Λ0 b) - M(B¯0) = 339.72±0.24(stat) ± 0.18(syst) MeV=c2. This result provides the most precise measurement of the mass of the Λb 0 baryon to date.