Published March 2006 | Version v1
Journal article Metadata-only

The dilepton QT spectrum in transversely polarized Drell-Yan process in QCD

Creators

  • 1. RIKEN, Radiation Laboratory, Wako, Saitama (Japan)
  • 2. High Energy Accelerator Research Organization, Tsukuba, Ibaraki (Japan)
  • 3. Hiroshima Univ., Dept. of Physics, Higashi-Hiroshima, Hiroshima (Japan)
  • 4. Juntendo Univ., Dept. of Physics, Inba, Chiba (Japan)

Description

We discuss the transverse momentum QT distribution of Drell-Yan pair, produced in collisions of transversely polarized protons. We calculate the transversely polarized Drell-Yan cross section up to O(αs) in the dimensional regularization, which gives QCD prediction at large QT. For small QT, we include all-orders resummation of large logarithms due to emission of soft gluons up to next-to-leading logarithmic accuracy. At intermediate QT, the resummation formula is matched with the fixed-order αs perturbative results in a systematic way, and we derive the cross section with uniform accuracy over the entire range of QT. (author)

Additional details

Publishing Information

Journal Title
Progress of Theoretical Physics (Kyoto)
Journal Volume
115
Journal Issue
3
Journal Page Range
p. 667-672
ISSN
0033-068X

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
37067731
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
DIFFERENTIAL CROSS SECTIONS; DRELL MODEL; LEPTONS; MASS; NUCLEAR STRUCTURE; PARTICLE INTERACTIONS; POLARIZED BEAMS; POLARIZED TARGETS; PROTON BEAMS; PROTONS; Q-VALUE; QUANTUM CHROMODYNAMICS; SPIN ORIENTATION; TRANSVERSE MOMENTUM
Descriptors DEC
BARYONS; BEAMS; CROSS SECTIONS; ELEMENTARY PARTICLES; ENERGY; FERMIONS; FIELD THEORIES; HADRONS; INTERACTIONS; LINEAR MOMENTUM; NUCLEON BEAMS; NUCLEONS; ORIENTATION; PARTICLE BEAMS; QUANTUM FIELD THEORY; TARGETS

Optional Information

Notes
17 refs., 1 fig.