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Institute for Particle Physics Phenomenology

Durham University Logo Institute for Particle Physics Phenomenology Logo

Institute for Particle Physics Phenomenology

Description: 

Contribution of the Darwin operator to non-leptonic decay of heavy hadrons

The total decay width of heavy hadrons can be systematically computed using the Heavy Quark Expansion (HQE) framework, as a series in inverse powers of the heavy quark mass m_Q. Computation of higher corrections is crucial both to test the consistency of HQE itself and to constrain the size of possible new physics effects. In this talk I will present the result of our recent work on the determination of the two-loop 1/m_b^3 correction (Darwin term) to the non-leptonic decays of B mesons. This effect is found to give the dominant correction for the case of B_s and B_d mesons, and the second most important correction for the case of B^+ meson.

Type: 
Lecture
Category: 
Oct 2019 - Sept 2020
Date: 
17/04/2020
Location: 
Ogden Center
Room: 
OG218
Timezone: 
Europe/London
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