Abstract
A study of B ±→J/ψπ ± and B ±→ψ(2S)π ± decays is performed with data corresponding to 0.37fb -1 of proton-proton collisions at √s=7TeV. Their branching fractions are found to be B(B ±→J/ψπ ±)=(3.88±0. 11±0.15)×10 -5andB(B ±→ψ(2S) π ±)=(2.52±0.26±0.15)×10 -5,where the first uncertainty is related to the statistical size of the sample and the second quantifies systematic effects. The measured CP asymmetries in these modes are ACPJ/ψπ=0.005±0.027±0. 011andACPψ(2S)π=0.048±0.090±0.011 with no evidence of direct CP violation seen.
Original language | English |
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Article number | 091105 |
Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
Volume | 85 |
Issue number | 9 |
DOIs | |
Publication status | Published - 7 May 2012 |
Externally published | Yes |
Bibliographical note
Copyright:Copyright 2012 Elsevier B.V., All rights reserved.
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)