First observation of CP violation in B+ to rho(770)^0 K*(892)+ decays with A_CP = 0.507 and longitudinal polarization fraction f_L = 0.720 from 9 fb^-1 of LHCb data.
A precise sum rule among four B -> Kpi CP asymmetries
8 Pith papers cite this work. Polarity classification is still indexing.
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abstract
A sum rule relation is proposed for direct CP asymmetries in $B\to K\pi$ decays. Leading terms are identical in the isospin symmetry limit, while subleading terms are equal in the flavor SU(3) and heavy quark limits. The sum rule predicts $A_{\rm CP}(B^0\to K^0\pi^0)=-0.17 \pm 0.06$ using current asymmetry measurements for the other three $B\to K\pi$ decays. A violation of the sum rule would be evidence for New Physics in $b\to s\bar qq$ transitions.
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A minimal ALP model with mass near the pi0, couplings to photons, top quarks, and a sterile neutrino explains the B to K inv excess via off-shell sterile neutrino pairs and B to pi K anomalies via pi0 mixing.
Most precise CP asymmetry and branching ratio measurements for B± → K0S h± decays with no significant signal observed for the rare Bc decay.
A data-driven SU(3)-breaking analysis of B to PP decays yields QCD-factorization amplitudes that resemble dynamical predictions and require no enhanced annihilation terms.
CP asymmetries for B+ to pi+ pi0, D+ to pi+ pi0, and K+ to pi+ pi0 are estimated in the Standard Model at roughly 3 times 10 to the -3, 10 to the -5, and 10 to the -6 using a unified formalism for isospin violation.
Incorporating new Belle II data into the B to pi K system analysis provides fresh insight into the long-standing puzzle regarding CP violation.
The authors argue that ETRs follow automatically from SU(3) group theory and identify weaknesses in a recent QCD-factorization fit that omitted them.
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QCD-factorization amplitudes from flavour symmetries: beyond the $SU(3)$ symmetric case
A data-driven SU(3)-breaking analysis of B to PP decays yields QCD-factorization amplitudes that resemble dynamical predictions and require no enhanced annihilation terms.
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CP asymmetries in charged meson decay to two pions
CP asymmetries for B+ to pi+ pi0, D+ to pi+ pi0, and K+ to pi+ pi0 are estimated in the Standard Model at roughly 3 times 10 to the -3, 10 to the -5, and 10 to the -6 using a unified formalism for isospin violation.