Measurements ofCP-Violating Asymmetries inB0→a1±(1260)π∓Decays

Measurements of Branching Fractions and Cp -violating Asymmetries in B

We present updated measurements of branching fractions and CP -violating asymmetries for neutral B meson decays to two-body final states of charged pions and kaons. The results are obtained from a data sample of about 60 million Υ (4S) → BB decays collected between 1999 and 2001 by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. The sample contains 124 −15 ππ, 403± 24 Kπ, ...

Finite temperature effects on CP violating asymmetries

We compute the CP violating decay asymmetries relevant for baryogenesis scenarios involving the out of equilibrium decays of heavy particles, including the finite temperature effects arising from the background of light thermal particles which are present during the decay epoch. Thermal effects can modify the size of CP violation by a sizeable fraction in the decay of scalar particles, but we f...

Measurement of indirect CP - violating asymmetries in

D[superscript 0] K[superscript +]K[superscript ] and D[superscript 0] [superscript +][superscript ] decays at Citation Aaltonen, T., et al. "Measurement of indirect CP-violating asymmetries in D[superscript 0] K[superscript +]K[superscript ] and D[superscript 0] [superscript +][superscript ] decays at CDF. Article is made available in accordance with the publisher's policy and may be subject to...

Measurement of CP - Violating Asymmetries in the

Particle-width effect on CP-violating asymmetries.

CP -violating asymmetries calculated from the Breit-Wigner approximation for unstable particle propagators violate CPT . A formalism satisfying CPT invariance and unitarity is presented. Applications are given to t decays. For the decay t → bντ τ̄ in a class of CP -violating Higgs models the CP -violating asymmetry turns out to be 10−4 times smaller than the previously reported results. PACS#: 1...