Published June 2016 | Version v1
Journal article Metadata-only

Finite temperature effect in infrared-improved AdS/QCD model with back reaction of bulk vacuum

Creators

  • 1. University of Chinese Academy of Sciences(UCAS), Beijing (China)
  • 2. Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing (China)
  • 3. Kavli Institute for Theoretical Physics China(KITPC), Beijing (China)
  • 4. Key Laboratory of Theoretical Physics(SKLTP), Beijing (China)

Description

Based on an IR-improved soft-wall AdS/QCD model for mesons,which provides a consistent prediction for the mass spectra of resonance scalar, pseudoscalar, vector and axial-vector mesons, we investigate its finite temperature effect. By analyzing the spectral function of mesons and fitting it with a Breit-Wigner form, we perform an analysis for the critical temperature of mesons. The back-reaction effects of bulk vacuum are considered and the thermal mass spectral function of resonance mesons is calculated based on the back-reaction improved action. A reasonable melting temperature is found to be Tc ≈ 150 ± 7 MeV. which is consistent with the recent results from lattice QCD simulations. (authors)

Additional details

Identifiers

DOI
10.1088/1674-1137/40/6/063101;

Publishing Information

Journal Title
Chinese Physics. C, High Energy Physics and Nuclear Physics
Journal Volume
40
Journal Issue
6
Journal Page Range
[8 p.]
ISSN
1674-1137

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
52020246
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
AXIAL VECTOR MESONS; BREIT-WIGNER FORMULA; CRITICAL TEMPERATURE; MASS SPECTRA; MELTING POINTS; MEV RANGE; PSEUDOSCALARS; QUANTUM CHROMODYNAMICS; RESONANCE; SCALARS; SIMULATION; SPECTRAL FUNCTIONS; TEMPERATURE DEPENDENCE; THERMAL MASS
Descriptors DEC
BOSONS; ELEMENTARY PARTICLES; ENERGY RANGE; FIELD THEORIES; FUNCTIONS; HADRONS; MASS; MESONS; PHYSICAL PROPERTIES; QUANTUM FIELD THEORY; SPECTRA; THERMODYNAMIC PROPERTIES; TRANSITION TEMPERATURE

Optional Information

Notes
5 figs., 3 tabs., 43 refs.; http://dx.doi.org/10.1088/1674-1137/40/6/063101