10-1103-PhysRevLett-115-262001.pdf (401.32 kB)
Determination of the ratio of b-quark fragmentation fractions fs/fd in pp collisions at vs = 7 TeV with the ATLAS Detector
journal contribution
posted on 2023-06-09, 05:12 authored by Benedict AllbrookeBenedict Allbrooke, Lily AsquithLily Asquith, Alessandro CerriAlessandro Cerri, C A Chavez Barajas, Antonella De SantoAntonella De Santo, Fabrizio SalvatoreFabrizio Salvatore, I Santoyo Castillo, K Suruliz, Mark SuttonMark Sutton, Iacopo Vivarelli, The ATLAS CollaborationWith an integrated luminosity of 2.47??fb-1 recorded by the ATLAS experiment at the LHC, the exclusive decays B 0s?J/?? and B0d?J/?K*0 of B mesons produced in pp collisions at vs=7??TeV are used to determine the ratio of fragmentation fractions fs/fd. From the observed B0s?J/?? and B0d?J/?K*0 yields, the quantity (fs/fd)[B(B0s?J/??)/B(B 0d?J/?K*0)] is measured to be 0.199±0.004(stat)±0.008(syst). Using a recent theory prediction for [B(B0s?J/??)/B(B0d?J/?K*0)] yields (fs/fd)=0.240±0.004(stat)±0.010(syst)±0.017(th). This result is based on a new approach that provides a significant improvement of the world average.
Funding
STFC Consolidated Grant Supplement; G1316; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/M000753/1
History
Publication status
- Published
File Version
- Published version
Journal
Physical Review LettersISSN
0031-9007Publisher
American Physical SocietyExternal DOI
Issue
26Volume
115Page range
2001Department affiliated with
- Physics and Astronomy Publications
Research groups affiliated with
- Experimental Particle Physics Research Group Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2017-02-15First Open Access (FOA) Date
2017-02-15First Compliant Deposit (FCD) Date
2017-02-15Usage metrics
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