Published February 11, 2011 | Version v1
Journal article Metadata-only

Bottomonium above Deconfinement in Lattice Nonrelativistic QCD

Creators

  • 1. Department of Physics, Swansea University, Swansea SA2 8PP (United Kingdom)
  • 2. Department of Physics, Sejong University, Seoul 143-747 (Korea, Republic of)
  • 3. INFN-Laboratori Nazionali de Frascati, I-00044, Frascati (RM) Italy (Italy)
  • 4. Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah 84112-0830 (United States)
  • 5. School of Mathematics, Trinity College, Dublin 2 (Ireland)
  • 6. HEP Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 (United States)
  • 7. Department of Mathematical Physics, National University of Ireland Maynooth, Maynooth, County Kildare (Ireland)

Description

We study the temperature dependence of bottomonium for temperatures in the range 0.4Tc<T<2.1Tc, using nonrelativistic dynamics for the bottom quark and full relativistic lattice QCD simulations for Nf=2 light flavors on a highly anisotropic lattice. We find that the Υ is insensitive to the temperature in this range, while the χb propagators show a crossover from the exponential decay characterizing the hadronic phase to a power-law behavior consistent with nearly free dynamics at T≅2Tc.

Additional details

Identifiers

DOI
10.1103/PhysRevLett.106.061602;
arXiv
arXiv:1010.3725v1;

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
106
Journal Issue
6
Journal Page Range
p. 061602-061602.4
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
Syrian Arab Republic
INIS RN
43011807
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
ANISOTROPY; B QUARKS; BOTTOMONIUM; FLAVOR MODEL; QUANTUM CHROMODYNAMICS; RELATIVISTIC RANGE; SIMULATION; TEMPERATURE DEPENDENCE
Descriptors DEC
BEAUTY PARTICLES; BOSONS; COMPOSITE MODELS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; FIELD THEORIES; HADRONS; MATHEMATICAL MODELS; MESONS; PARTICLE MODELS; QUANTUM FIELD THEORY; QUARK MODEL; QUARKONIUM; QUARKS

Optional Information

Notes
(c) 2011 American Institute of Physics