Towards a nonperturbative calculation of weak Hamiltonian Wilson coefficients

Bruno, Mattia; Lehner, Christoph; Soni, Amarjit

doi:10.1103/PhysRevD.97.074509

Title: Towards a nonperturbative calculation of weak Hamiltonian Wilson coefficients

Journal Article · Fri Apr 20 00:00:00 EDT 2018 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.97.074509· OSTI ID:1434187

Bruno, Mattia; Lehner, Christoph; Soni, Amarjit

Here, we propose a method to compute the Wilson coefficients of the weak effective Hamiltonian to all orders in the strong coupling constant using Lattice QCD simulations. We perform our calculations adopting an unphysically light weak boson mass of around 2 GeV. We demonstrate that systematic errors for the Wilson coefficients C₁ and C₂, related to the current-current four-quark operators, can be controlled and present a path towards precise determinations in subsequent works.

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Research Organization:: Brookhaven National Lab. (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Organization:: RBC and UKQCD Collaborations

Grant/Contract Number:: SC0012704

OSTI ID:: 1434187

Alternate ID(s):: OSTI ID: 1440345

Report Number(s):: BNL-205731-2018-JAAM; PRVDAQ; 074509

Journal Information:: Physical Review D, Journal Name: Physical Review D Vol. 97 Journal Issue: 7; ISSN 2470-0010

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 2 works

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Title: Towards a nonperturbative calculation of weak Hamiltonian Wilson coefficients

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