QED effects on the decay of charged pions and kaons

18 Jun 2019, 17:50
20m
Foyer

Foyer

Poster Weak Decays and Matrix Elements Poster

Speaker

Paul Rakow (University of Liverpool)

Description

The major decay rates of the charged pion and kaon mesons are to the end state of a muon and neutrino. This mode contributes over 99.9 percent to the pion decay, and about 64 percent to the kaon decay.

Analysing this decay on the lattice could lead to improved values for the meson decay constants and the parameters in the CKM matrix. High accuracy predictions will need to have QED effects included. We present some initial simulations taking account of the QED corrections by including a partially quenched muon propagator with its photon cloud.

Authors

Paul Rakow (University of Liverpool) Ms Caroline Cahill (University of Liverpool) Roger Horsley (University of Edinburgh) Holger Perlt (University of Leipzig) Gerrit Schierholz (DESY) James Zanotti (University of Adelaide) Ross Young (University of Adelaide) Yoshifumi Nakamura

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