Published October 2000
| Version v1
Journal article
Two-loop matching conditions for MS-bar parton densities
Creators
Description
We discuss how the the operator product expansion (OPE) can be used to derive asymptotic expressions for certain integrals. This yields operator matrix elements (OME's) which determine the matching conditions for MS-bar parton densities across heavy flavour thresholds. Then we construct four and five-flavour densities from a three-flavour set via the evolution of the AP equation using LO and NLO splitting functions
Additional details
Identifiers
- PII
- S0920563200008379;
Publishing Information
- Journal Title
- Nuclear Physics. B, Proceedings Supplements
- Journal Volume
- 89
- Journal Issue
- 1-3
- Journal Page Range
- p. 149-154
- ISSN
- 0920-5632
- CODEN
- NPBSE7
Conference
- Title
- 5. Zeuthen workshop on elementary particle theory, loops and legs in quantum field theory
- Dates
- 9-14 Apr 2000
- Place
- Bastei (Germany)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 34064506
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ASYMPTOTIC SOLUTIONS; FLAVOR MODEL; INTEGRALS; MATHEMATICAL EVOLUTION; MATRIX ELEMENTS; OPERATOR PRODUCT EXPANSION; PARTON MODEL; PARTONS
- Descriptors DEC
- COMPOSITE MODELS; ELEMENTARY PARTICLES; EVOLUTION; MATHEMATICAL MODELS; MATHEMATICAL SOLUTIONS; PARTICLE MODELS; POSTULATED PARTICLES; QUARK MODEL; SERIES EXPANSION
Optional Information
- Copyright
- Copyright (c) 2000 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.