Measurement of the CP-violating phase φ[subscript s] in [bar over B][superscript 0][subscript s] → J/ψπ[superscript +]π[supercript −] decays
Name
1-s2.0-S0370269314004845-main.pdf
Size
804.4 KB
Format
Adobe PDF
Checksum (MD5)
b40d91869e40b821438a9346cc8363e0
Author(s)
Counts, Ian Thomas Hunt
Ilten, Philip J
Williams, Michael
Date Issued
July 2014
Journal
Physics Letters B
Publisher
Elsevier BV
Citation
Aaij, R., et al. “Measurement of the CP-Violating Phase ϕ[subscript s] in [bar over B][superscript 0][subscript s] → J/ψπ[superscript +]π[superscript −] Decays.” Physics Letters B, vol. 736, Sept. 2014, pp. 186–95. © 2014 The Authors
Version
Final published version
Abstract
The mixing-induced CP-violating phase φ[subscript s] in B[superscript 0][subscript s] and [bar over B][superscript 0][subscript s] decays is measured using the J/ψ π[superscript +]π[superscript -] final state in data, taken from 3 fb[superscript -1] of integrated luminosity, collected with the LHCb detector in 7 and 8 TeV centre-of-mass pp collisions at the LHC. A time-dependent flavour-tagged amplitude analysis, allowing for direct CP violation, yields a value for the phase φ[subscript s] = 70 ± 68 ± 8 mrad. This result is consistent with the Standard Model expectation and previous measurements. © 2014 The Authors.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Attribution 4.0 International (CC BY 4.0)
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/J.PHYSLETB.2014.06.079
