First evidence of direct CP violation in charmless two-body decays of Bs0 mesons
- R. Aaijb(Author),
- C. Abellan Betetah, ah(Author),
- B. Adevaa(Author),
- M. Adinolfiam(Author),
- C. Adroverx(Author),
- A. Affolderp(Author)
- aUniversity of Santiago de Compostela,
- bNational Institute for Subatomic Physics,
- cIstituto Nazionale Di Fisica Nucleare, Frascati,
- dAlikhanov Institute for Theoretical and Experimental Physics,
- eCERN,
- fUniversité Clermont Auvergne
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Abstract
Using a data sample corresponding to an integrated luminosity of 0.35fb -1 collected by LHCb in 2011, we report the first evidence of CP violation in the decays of Bs0 mesons to K ±π δ pairs, A CP(Bs0→Kπ)=0.27±0.08(stat) ±0.02(syst), with a significance of 3.3σ. Furthermore, we report the most precise measurement of CP violation in the decays of B0 mesons to K ±π δ pairs, A CP(B0→Kπ)= -0.088±0.011(stat)±0.008(syst), with a significance exceeding 6σ.
Publication Information
Output type
Research Output: Contribution to journal Article Peer-review
Original language
EnglishArticle number
201601Journal (Volume, Issue Number)
Physical Review Letters (Volume 108, Issue 20)Publication milestones
- Published - 16/05/2012
Publication status
Published - 16/05/2012
ISSN
0031-9007External Publication IDs
- Scopus: 84861562940
- WOS: 000304107300001
Funding Details
FundersFunding numbers
NSF
-STFC
PP/E000347/1, ST/H001069/2, ST/L001195/1, ST/H001026/1, ST/H001085/2, ST/K001256/1, ST/K001361/1, ST/J005614/1, GRIDPP, ST/G502412/1, ST/K001310/1, ST/F008015/1, ST/G005974/1, LHCb, ST/H00100X/1, ST/L001144/1, ST/K00073X/1, ST/H00100X/2, ST/K000705/1, ST/K004646/1, PP/E002722/1, PP/E000355/1, ST/H006737/1, ST/H001093/2, ST/M001431/1, ST/K001418/1, ST/K00140X/1, ST/M001474/1, LHCb Upgrades, ST/H001093/1, ST/I002839/1, ST/K000616/1, ST/L001225/1, ST/I505572/1, ST/J004820/1, ST/H001026/2, ST/F007094/1
STFC
-SNF
127479, 139663, 141096
SNF
-