Published June 13, 2007 | Version v1
Journal article Metadata-only

Constraint on Δg(x) from π0 production at RHIC

Creators

  • 1. Department of Physics, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo, 152-8550 (Japan)
  • 2. Department of Particle and Nuclear Studies, Graduate University for Advanced Studies 1-1, Ooho, Tsukuba, Ibaraki, 305-0801 (Japan)
  • 3. Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), 1-1, Ooho, Tsukuba, Ibaraki, 305-0801 (Japan)

Description

We determine the polarized gluon distribution Δg(x) by a global analysis using current DIS and π0 asymmetry data. The π0 data from RHIC-Spin experiments provide a strong constraint on Δg(x), so that its uncertainty is reduced. However, a sign problem appears in the analysis using π0 data, which means that positive and negative distributions are allowed for Δg(x). These two types of solutions are discussed

Additional details

Identifiers

DOI
10.1063/1.2750809;
arXiv
arXiv:hep-ph/0612037v1;

Publishing Information

Journal Title
AIP Conference Proceedings
Journal Volume
915
Journal Issue
1
Journal Page Range
p. 412-415
ISSN
0094-243X
CODEN
APCPCS

Conference

Title
17. international spin physics symposium
Dates
2-7 Oct 2006
Place
Kyoto (Japan)

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
39078914
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ASYMMETRY; BROOKHAVEN RHIC; DEEP INELASTIC SCATTERING; DISTRIBUTION; GLUONS; MATHEMATICAL SOLUTIONS; PARTICLE KINEMATICS; PARTICLE PRODUCTION; PARTICLE STRUCTURE; PIONS NEUTRAL; POLARIZATION; SPIN
Descriptors DEC
ACCELERATORS; ANGULAR MOMENTUM; BOSONS; ELEMENTARY PARTICLES; HADRONS; HEAVY ION ACCELERATORS; INELASTIC SCATTERING; INTERACTIONS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; MESONS; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; PIONS; PSEUDOSCALAR MESONS; SCATTERING; STORAGE RINGS

Optional Information

Notes
(c) 2007 American Institute of Physics