Measurement of the B0B0 and Bs 0Bs 0 production asymmetries in pp collisions at √s = 7TeV
- R. Aaij,
- B. Adeva,
- M. Adinolfi,
- A. Affolder,
- Z. Ajaltouni,
- S. Akar
- National Institute for Subatomic Physics,
- University of Santiago de Compostela,
- University of Bristol,
- University of Liverpool,
- Université Clermont Auvergne,
- CNRS
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Abstract
The B 0-B 0 and B s 0B s 0 production asymmetries, A P(B 0) and AP(B s 0), are measured by means of a time-dependent analysis of B 0→J/ψK *0, B 0→D -π + and B s 0→Ds-π+ decays, using a data sample corresponding to an integrated luminosity of 1.0fb -1, collected by LHCb in pp collisions at a centre-of-mass energy of 7TeV. The measurements are performed as a function of transverse momentum and pseudorapidity of the B 0 and B s 0 mesons within the LHCb acceptance. The production asymmetries, integrated over p T and η in the range 4
T<30GeV/c and 2.5<η<4.5, are determined to be A P(B 0)=(-0.35±0.76±0.28)% and AP(B s 0)=(1.09±2.61±0.66)%, where the first uncertainties are statistical and the second systematic.
Publication Information
Output type
Original language
EnglishPages from-to (Number of pages)
Pages 218-228 (11 pages)Journal (Volume, Issue Number)
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics (Volume 739)Publication milestones
- Published - 02/12/2014
Publication status
ISSN
0370-2693Publication IDs
- Scopus: 84937644673
- WOS: 000346002000035