Published April 2009
| Version v1
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Automated generation of lattice QCD Feynman rules
Creators
- 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.)
Availability note (English)
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
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 40051730
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- AUTOMATION; COMPUTER CODES; DIFFERENTIAL CALCULUS; FEYNMAN DIAGRAM; FLAVOR MODEL; LATTICE FIELD THEORY; PERTURBATION THEORY; QUANTUM CHROMODYNAMICS; RELATIVISTIC RANGE
- Descriptors DEC
- COMPOSITE MODELS; CONSTRUCTIVE FIELD THEORY; DIAGRAMS; ENERGY RANGE; FIELD THEORIES; INFORMATION; MATHEMATICAL MODELS; MATHEMATICS; PARTICLE MODELS; QUANTUM FIELD THEORY; QUARK MODEL