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Title: Two-colour QCD at finite fundamental quark-number density and related theories

Abstract

We are simulating SU(2) Yang-Mills theory with four flavours of dynamical quarks in the fundamental representation of SU(2) colour at finite chemical potential, p for quark number, as a model for QCD at finite baryon number density. In particular we observe that for p large enough this theory undergoes a phase transition to a state with a diquark condensate which breaks quark-number symmetry. In this phase we examine the spectrum of light scalar and pseudoscalar bosons and see evidence for the Goldstone boson associated with this spontaneous symmetry breaking. This theory is closely related to QCD at finite chemical potential for isospin, a theory which we are now studying for SU(3) colour.

Authors:
; ; ;
Publication Date:
Research Org.:
Argonne National Lab., IL (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
768625
Report Number(s):
ANL-HEP-CP-00-110
TRN: US0102914
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Conference
Resource Relation:
Conference: 18th International Symposium on Lattice Field Theory (Lattice 2000), Bangalore (IN), 08/17/2000--08/22/2000; Other Information: PBD: 15 Nov 2000
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BARYON NUMBER; GOLDSTONE BOSONS; QUANTUM CHROMODYNAMICS; QUARKS; SYMMETRY BREAKING; YANG-MILLS THEORY; QUANTUM FLAVORDYNAMICS; PHASE TRANSFORMATIONS; PSEUDOSCALAR MESONS

Citation Formats

Hands, S J, Kogut, J B, Morrison, S E, and Sinclair, D K. Two-colour QCD at finite fundamental quark-number density and related theories. United States: N. p., 2000. Web.
Hands, S J, Kogut, J B, Morrison, S E, & Sinclair, D K. Two-colour QCD at finite fundamental quark-number density and related theories. United States.
Hands, S J, Kogut, J B, Morrison, S E, and Sinclair, D K. Wed . "Two-colour QCD at finite fundamental quark-number density and related theories". United States. https://www.osti.gov/servlets/purl/768625.
@article{osti_768625,
title = {Two-colour QCD at finite fundamental quark-number density and related theories},
author = {Hands, S J and Kogut, J B and Morrison, S E and Sinclair, D K},
abstractNote = {We are simulating SU(2) Yang-Mills theory with four flavours of dynamical quarks in the fundamental representation of SU(2) colour at finite chemical potential, p for quark number, as a model for QCD at finite baryon number density. In particular we observe that for p large enough this theory undergoes a phase transition to a state with a diquark condensate which breaks quark-number symmetry. In this phase we examine the spectrum of light scalar and pseudoscalar bosons and see evidence for the Goldstone boson associated with this spontaneous symmetry breaking. This theory is closely related to QCD at finite chemical potential for isospin, a theory which we are now studying for SU(3) colour.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {11}
}

Conference:
Other availability
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