Search for CP violation and test of CPT invariance in τ decays at BaBar

2011 ◽  
Vol 218 (1) ◽  
pp. 160-165
Author(s):  
H.H.F. Choi
Keyword(s):  
Cp Violation ◽  
Cpt Invariance

TEST OF FUNDAMENTAL SYMMETRY PRINCIPLES AT A ϕ FACTORY

1992 ◽  
Vol 07 (26) ◽  
pp. 2351-2368
Author(s):  
DAVID B. CLINE
Keyword(s):  
Quantum Mechanics ◽  
Cp Violation ◽  
Current Level ◽  
Cpt Violation ◽  
Cpt Invariance ◽  
Fundamental Symmetry ◽  
Symmetry Principles ◽  
Model Independent

We describe the tests of various symmetry principles at a ϕ factory. The most important new tests will be for the validity of CPT invariance at an extremely sensitive level. We indicate the current level of model independent limitation on CPT violation. Tests of new gravity interactions as well as CP violation in various K decays are described as well as some interest in new probes of quantum mechanics. A brief description of the Frascati, Novosibirsk and UCLA ϕ factory designs are also given.

CP violation and CPT invariance in charmless B decays

2015 ◽  
Vol 258-259 ◽  
pp. 167-170 ◽  
Author(s):  
Ignacio Bediaga ◽  
Tobias Frederico ◽  
Odilon Loureno
Keyword(s):  
Cp Violation ◽  
B Decays ◽  
Cpt Invariance ◽  
Charmless B Decays

scholarly journals CP violation in mixing and oscillations in a toy model for leptogenesis with quasi-degenerate neutrinos

2021 ◽  
Vol 2021 (4) ◽  
Author(s):  
J. Racker
Keyword(s):  
Cp Violation ◽  
Source Term ◽  
Mass Difference ◽  
Theory Model ◽  
Interference Term ◽  
Final States ◽  
Cpt Invariance ◽  
Lepton Asymmetry ◽  
First Order ◽  
Unstable Particles

Abstract We study the sources of CP violation for baryogenesis models with quasi-degenerate neutrinos. Our approach is to use the renormalized propagator in a quantum field theory model of neutrino oscillations, paying close attention to unitarity requirements. From the probabilities of lepton number violating processes obtained in this way, we derive a source term for the time evolution of the lepton asymmetry. The source term has contributions that can be identified with CP violation from mixing, oscillations and interference between both. Given that this source term does not involve processes with unstable particles in the initial or final states, neither does it require to calculate number densities of neutrinos, no subtraction of real intermediate states must be performed. In equilibrium the source term is null, as demanded by unitarity and CPT invariance, due to a cancellation between the terms coming from CP violation in mixing and oscillations. The calculations are done in a simple scalar toy model, and the resummed propagator is diagonalized at first order in the decay widths over the mass difference. We also comment on the effect of the interference term, which is mild at the order we work, but seems to become more important with increasing degeneracy.

CP Violation

2009 ◽  
Author(s):  
I. I. Bigi ◽  
A. I. Sanda
Keyword(s):  
Cp Violation

scholarly journals Status of CP Violation

2009 ◽  
Vol 827 (1-4) ◽  
pp. 469c-474c ◽  
Author(s):  
Nita Sinha
Keyword(s):  
Cp Violation

scholarly journals Leptonic Dirac CP violation predictions from residual discrete symmetries

2016 ◽  
Vol 902 ◽  
pp. 1-57 ◽  
Author(s):  
I. Girardi ◽  
S.T. Petcov ◽  
Alexander J. Stuart ◽  
A.V. Titov
Keyword(s):  
Cp Violation ◽  
Discrete Symmetries

scholarly journals Measurement of branching fraction and search for CP violation in B→ϕϕK

2021 ◽  
Vol 103 (5) ◽  
Author(s):  
S. Mohanty ◽  
A. B. Kaliyar ◽  
V. Gaur ◽  
G. B. Mohanty ◽  
I. Adachi ◽  
...  
Keyword(s):  
Cp Violation ◽  
Branching Fraction
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