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Title: CP violation studies in B mesons

Conference · · EPJ Web Conf.

The four general purpose detectors on the Tevatron (CDF, D0) and LHC (Atlas, CMS) hadron colliders continue to make important measurements in the field of CP violation (CPV) in B hadron physics. The CDF collaboration presents new results in direct CPV of charmless B decays, providing world-leading measurements in b baryon decays, and finding evidence for non zero CPV in the decayB_s^0 -> K^-pi^+. The D0 Collaboration presents measurements of the semileptonic mixing asymmetries in B^0 and B_s^0 mesons, with the former having a precision exceeding the previous world average. All four experiments perform time-dependent angular analysis of the decay B_s^0 -> J/psiphi enabling the extraction of the lifetime difference DeltaGamma_s and the CPV phasephi_s^J/psiphi. In all cases, the results obtained are consistent with each other, and with the standard model predictions.

Research Organization:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Organization:
ATLAS; CDF; CMS; D0
DOE Contract Number:
AC02-07CH11359
OSTI ID:
1831989
Report Number(s):
FERMILAB-CONF-13-723-CMS; oai:inspirehep.net:1237710
Journal Information:
EPJ Web Conf., Vol. 49
Country of Publication:
United States
Language:
English

References (12)

Electroweak baryogenesis and standard model CP violation journal January 1995
Supersymmetric CP-violating currents and electroweak baryogenesis journal April 2001
Anomalous B -meson mixing and baryogenesis journal August 2011
Electroweak baryogenesis in two Higgs doublet models and B meson anomalies journal November 2011
Measurements of Direct C P Violating Asymmetries in Charmless Decays of Strange Bottom Mesons and Bottom Baryons journal May 2011
First Evidence of Direct C P Violation in Charmless Two-Body Decays of B s 0 Mesons journal May 2012
Measurement of the Semileptonic Charge Asymmetry using B s 0 D s μ X Decays journal January 2013
Measurement of the semileptonic charge asymmetry in B 0 meson mixing with the D0 detector journal October 2012
Measurement of the anomalous like-sign dimuon charge asymmetry with 9 fb 1 of p p ¯ collisions journal September 2011
Measurement of the Bottom-Strange Meson Mixing Phase in the Full CDF Data Set journal October 2012
Measurement of the C P -violating phase ϕ s J / ψ ϕ using the flavor-tagged decay B s 0 J / ψ ϕ in 8 fb 1 of p p ¯ collisions journal February 2012
Measurement of the C P -Violating Phase ϕ s in the Decay B s 0 J / ψ ϕ journal March 2012

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