scholarly journals Time-dependent CP violation in charmless b decays at LHCb

2020 ◽  
Author(s):  
Louis Henry
2005 ◽  
Vol 20 (22) ◽  
pp. 5105-5118 ◽  
Author(s):  
ZOLTAN LIGETI

The status of CP violation and the CKM matrix is reviewed. Direct CP violation in B decay has been established and the measurement of sin 2β in ψK modes reached 5% accuracy. I discuss the implications of these, and of the possible deviations of the CP asymmetries in b → s modes from that in ψK. The first meaningful measurements of α and γ are explained, together with their significance for constraining both the SM and new physics in [Formula: see text] mixing. I also discuss implications of recent developments in the theory of nonleptonic decays for B → πK rates and CP asymmetries, and for the polarization in charmless B decays to two vector mesons.


2005 ◽  
Vol 20 (22) ◽  
pp. 5059-5068 ◽  
Author(s):  
Y. SAKAI

Highlights on recent experimental results on rare decays from asymmetric B-factories are reported. Also, the results on time-dependent CP violation measurements for decay modes where [Formula: see text] penguin diagram dominate from Belle are reported.


2015 ◽  
Vol 258-259 ◽  
pp. 167-170 ◽  
Author(s):  
Ignacio Bediaga ◽  
Tobias Frederico ◽  
Odilon Loureno

2005 ◽  
Vol 20 (02n03) ◽  
pp. 365-374
Author(s):  
◽  
HIROKAZU ISHINO

We report on measurements of time-dependent CP-violation parameters in neutral B meson systems based on a 140fb -1 data sample collected at the ϒ(4S) resonance with the Belle detector at the KEKB energy-asymmetric e+e- collider. One B meson is fully reconstructed in one of the CP eigenstate decay channels, and its flavor is identified from the decay products of the accompanying B meson. The CP-violation parameters are extracted from the asymmetries in the distributions of the proper-time intervals between the two B decays. The parameter sin 2ϕ1 is measured with the decay modes including the b→c tree and b→s penguin transitions, and sin 2ϕ2 is obtained from the decay mode B→π+π-. A brief discussion of the ϕ3 measurements with B→D(*)∓π± decays is also given.


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