Published August 1, 2006
| Version v1
Journal article
Extrapolating parton fragmentation to low Q2 in e+-e- collisions
Creators
- 1. CENPA 354290, University of Washington, Seattle, Washington 98195 (United States)
Description
We analyze the energy-scale dependence of fragmentation functions from e+-e- collisions using conventional momentum measures xp and ξp and rapidity y. We find that replotting fragmentation functions on a normalized rapidity variable results in a compact form precisely represented by the beta distribution, its two parameters varying slowly and simply with parton energy scale Q. The resulting parameterization enables extrapolation of fragmentation functions to low Q in order to describe fragment distributions at low transverse momentum pt in heavy ion collisions at RHIC
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.74.034012;
- arXiv
- arXiv:hep-ph/0606249v3;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 74
- Journal Issue
- 3
- Journal Page Range
- p. 034012-034012.19
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38037411
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- BROOKHAVEN RHIC; COLLIDING BEAMS; DISTRIBUTION; ELECTRON-POSITRON INTERACTIONS; EXTRAPOLATION; FOUR MOMENTUM TRANSFER; GLUONS; HEAVY ION REACTIONS; PARTICLE RAPIDITY; QUARKS; TRANSVERSE MOMENTUM
- Descriptors DEC
- ACCELERATORS; BEAMS; BOSONS; FERMIONS; HEAVY ION ACCELERATORS; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; LINEAR MOMENTUM; MATHEMATICAL SOLUTIONS; MOMENTUM TRANSFER; NUCLEAR REACTIONS; NUMERICAL SOLUTION; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; STORAGE RINGS
Optional Information
- Notes
- (c) 2006 The American Physical Society