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Contenuto archiviato il 2024-06-18

Flavour physics from lattice QCD at the physical point

Obiettivo

The matrix elements of the electro-weak mixing matrix, the Cabibbo-Kobayashi-Maskawa matrix, are of importance to many experimental and phenomenological applications in flavour physics. We will address the particular matrix element V(us), which can be extracted from experimental measurements once the kaon semi-leptonic form factors for the K(l3) decay is known. Therefore, we will provide quantitative results for that form factor using numerical simulations of Quantum Chromodynamics on the lattice, i.e. lattice QCD.

The hadronic matrix element for the K to pi decay will be measured on gauge configurations produced by the QCDSF collaboration. Those lattice QCD simulations are performed with 2 and 2+1 quark flavours of various masses, where the light quark masses eventually will approach the physical point realized in Nature. The non-perturbative clover improved fermion action is used to simulate the dynamical quark effects. Results for the kaon semi-leptonic form factor at different simulated quark masses will be compared with predictions from chiral perturbation theory.

Invito a presentare proposte

FP7-PEOPLE-2010-RG
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Coordinatore

UNIVERSITAET REGENSBURG
Contributo UE
€ 100 000,00
Indirizzo
UNIVERSITATSSTRASSE 31
93053 Regensburg
Germania

Mostra sulla mappa

Regione
Bayern Oberpfalz Regensburg, Kreisfreie Stadt
Tipo di attività
Higher or Secondary Education Establishments
Contatto amministrativo
Johanna Kronberger (Ms.)
Collegamenti
Costo totale
Nessun dato