Measurement of the production asymmetry and the asymmetry in decays
Journal Article
·
· Physical Review D
The B± meson production asymmetry in pp collisions is measured using B+→¯D0π+ decays. The data were recorded by the LHCb experiment during Run 1 of the LHC at center-of-mass energies of √s = 7 and 8 TeV. The production asymmetries, integrated over transverse momenta in the range 2 < pT < 30 GeV/c, and rapidities in the range 2.1 < y < 4.5 are measured to be Aprod(B+,√s = 7 TeV)=(–0.41±0.49±0.10)×10–2, Aprod(B+,√s = 8 TeV)=(–0.53±0.31±0.10)×10–2, where the first uncertainties are statistical and the second are systematic. These production asymmetries are used to correct the raw asymmetries of B+→J/ψK+ decays, thus allowing a measurement of the CP asymmetry, ACP(B+→J/ψK+)=(0.09±0.27±0.07)×10–2.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Contributing Organization:
- LHCb Collaboration
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1525203
- Journal Information:
- Physical Review D, Vol. 95, Issue 5; ISSN 2470-0010
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 5 works
Citation information provided by
Web of Science
Web of Science
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Measurement of the $B_c^-$ meson production fraction and asymmetry in 7 and 13 TeV $pp$ collisions
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Weak Decays of Stable Open-bottom Tetraquark by SU(3) Symmetry Analysis | text | January 2019 |
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