6533b858fe1ef96bd12b62c7
RESEARCH PRODUCT
Electroweak effects in the extraction of the CKM angle γ from B→Dπ decays
Joachim Brodsubject
PhysicsNuclear physicsParticle physicsMatrix (mathematics)Nuclear and High Energy PhysicsUnitarityExtraction (chemistry)HadronElectroweak interactionHigh Energy Physics::PhenomenologyHigh Energy Physics::Experimentlcsh:Physicslcsh:QC1-999description
The angle γ of the standard CKM unitarity triangle can be determined from tree-level B-meson decays essentially without hadronic uncertainties. We calculate the second-order electroweak corrections for the B→Dπ modes and show that their impact on the determination of γ could be enhanced by an accidental cancellation of poorly known hadronic matrix elements. However, we do not expect the resulting shift in γ to exceed |δγDπ/γ|≲O(10−4).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-04-01 | Physics Letters B |