Published April 2009 | Version v1
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Automated generation of lattice QCD Feynman rules

  • 1. Edinburgh Univ. (United Kingdom). SUPA School of Physics and Astronomy
  • 2. Deutsches Elektronen-Synchrotron (DESY), Zeuthen (DE)
  • 3. Cambridge Univ. (GB). DAMTP, CMS

Description

The derivation of the Feynman rules for lattice perturbation theory from actions and operators is complicated, especially for highly improved actions such as HISQ. This task is, however, both important and particularly suitable for automation. We describe a suite of software to generate and evaluate Feynman rules for a wide range of lattice field theories with gluons and (relativistic and/or heavy) quarks. Our programs are capable of dealing with actions as complicated as (m)NRQCD and HISQ. Automated differentiation methods are used to calculate also the derivatives of Feynman diagrams. (orig.)

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Available from INIS in electronic form

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Additional details

Publishing Information

Imprint Pagination
40 p.
ISSN
0418-9833
Report number
DESY--09-052