Results 51 to 60 of about 18,495 (200)

CP-violation in cascade decays at the LHC [PDF]

open access: yes, 2010
We study the potential to observe CP-violating effects in various supersymmetric cascade decay chains at the LHC. Asymmetries composed by triple products of momenta of the final state particles are sensitive to CP-violating effects.
TATTERSALL, JAMIE
core  

Branching fraction and CP asymmetry of the decays B+→K0Sπ+ and B+→K0SK+ [PDF]

open access: yes, 2013
An analysis of B+ → K0 Sπ+ and B+ → K0 S K+ decays is performed with the LHCb experiment. The pp collision data used correspond to integrated luminosities of 1 fb−1 and 2 fb−1 collected at centre-ofmass energies of √ s = 7 TeV and √ s = 8 TeV ...
Hennessy K.   +999 more
core   +1 more source

Measurements of KL branching fractions and the CP violation parameter |η+-| [PDF]

open access: yes, 2004
We present new measurements of the six largest branching fractions of the KL using data collected in 1997 by the KTeV experiment (E832) at Fermilab. The results are B(KL → π±e ∓ν) = 0.4067 ± 0.0011, B(KL → π±μ∓ν) = 0.2701 ± 0.0009, B(KL → π+π-π0) = 0 ...
Whitmore, J.   +115 more
core   +1 more source

Leptonic CP violation from a vector-like lepton

open access: yesJournal of High Energy Physics, 2022
Leptonic CP violation is yet to be confirmed as an additional source of CP violation in fundamental interactions. We study the case where leptonic CP violation is spontaneous and is induced by the mixing with a heavy charged vector-like lepton (VLL).
A. L. Cherchiglia   +2 more
doaj   +1 more source

Measurements of direct CP violation, CPT symmetry, and other parameters in the neutral kaon system [PDF]

open access: yes, 2003
We present a series of measurements based on K L,S→ π + π - and K L,S→π 0π 0 decays collected in 1996-1997 by the KTeV experiment (E832) at Fermilab. We compare these four K→ππ decay rates to measure the direct CP violation parameter Re(ε′/ε) = (20.7±2.8)
Halkiadakis, E.   +155 more
core   +1 more source

A natural model of spontaneous CP violation

open access: yesJournal of High Energy Physics, 2022
We examine the possibility of building a natural non-supersymmetric model of spontaneous CP violation equipped with the Nelson-Barr (NB) mechanism to address the strong CP problem.
Sudhakantha Girmohanta   +3 more
doaj   +1 more source

Leptonic CP violation and leptogenesis [PDF]

open access: yesInternational Journal of Modern Physics A, 2014
The phenomenology of 3-neutrino mixing, the current status of our knowledge about the 3-neutrino mixing parameters, including the absolute neutrino mass scale, and of the Dirac and Majorana CP violation in the lepton sector, are reviewed. The problems of CP violation in neutrino oscillations and of determining the nature — Dirac or Majorana — of ...
openaire   +3 more sources

Measurement of the time-dependent CP asymmetry in B0 -> J/ψ KS0 decays [PDF]

open access: yes, 2012
This Letter reports a measurement of the CP violation observables SJ/ψK0S and CJ/ψK0S in the decay channel B0→J/ψK0S performed with 1.0 fb−1 of pp collisions at s√=7 TeV collected by the LHCb experiment. The fit to the data yields SJ/ψK0S=0.73±0.07(stat)±
Hennessy K.   +999 more
core   +1 more source

CP violation at finite temperature

open access: yesJournal of High Energy Physics
We present a comprehensive study of the finite temperature CP-asymmetry factor needed in the semi-classical treatment of leptogenesis originating from Majorana fermion decays into a lepton and a scalar particle.
Károly Seller   +2 more
doaj   +1 more source

CP violation of the loop induced H± → W±Z decays in the general two Higgs doublet model* [PDF]

open access: yesEPJ Web of Conferences
New sources of CP violation are necessary to solve the problem of the baryon asymmetry of the Universe. Extending the Higgs sector is one way to introduce such new CP violating phases, and studying observables resulting from the CP violation is important
Mura Yushi, Kanemura Shinya
doaj   +1 more source

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