TY - JOUR

T1 - Thermal phase transition in mixed action SU (3) lattice gauge theory and Wilson fermion thermodynamics

AU - Blum, T.

AU - DeTar, C.

AU - Heller, Urs M.

AU - Kärkkäinen, Leo

AU - Rummukainen, K.

AU - Toussaint, D.

N1 - Funding Information:
This work was partly supportedb y the U. S. Dept. of Energyu nderg rants# DE-FG02-8SER4021#3, D E-FG05-85ER25000#0 D, E-FG05-92ER4074a2n, d# DE-FG02-91ER40661a, ndthe U.S. NationalS cienceF oundatiounn derg rantsP HY9309458L. K wantst o thankt he Antti Wihuri foundationfo r additionasl upportT. B, CD, LK, KR and DT thankt heI nstitutefo r TheoreticaPlh ysics,S antaB arbaraw, heret hedynamical Wilson fermionp arto f thisp rojectw asi nitiated.K R wouldl ike to thankM . Hasenbusch for manyu sefuld iscussionsC.o mputationwse rec ardedo uton theU NIX clustersa t the SupercomputCeor mputationRse searchIn stitutea t The Florida StateU niversitya ndat the PittsburghS upercomputCeer nter,u sings everalw orkstationins parallelw ith PVM, on IBM RS6000w orkstationast the Universityo f Utah and IndianaU niversitya, ndon SUN workstationast the Universityo f Arizona and IndianaU niversityM. any of the simulationos n the largerl atticesw eredone on the IBM SP1 at the Cornell Theory Center,w hichr eceivesm ajorf undingf rom the U.S. NationalS cienceF oundationa nd the Stateo f New York, with additionaflu ndingf rom the AdvancedR esearchP rojects Agency,t he NationalI nstituteo f Health,I BM Corporationa,n do therm emberos f the CornellT heoryC enter'sC orporatRe esearchIn stitute.

PY - 1995/5/22

Y1 - 1995/5/22

N2 - We study the thermal phase diagram of pure SU(3) lattice gauge theory with fundamental and adjoint couplings. We improve previous estimates of the position of the bulk transition line and determine the thermal deconfinement transition lines for Nt = 2, 4, 6, and 8. The endpoint of the bulk transition line (βf, βa) = (4.00(7), 2.06(8)) improves upon earlier estimates obtained using smaller lattice sizes. For Nt > 4 the deconfinement transition line splits cleanly away from the bulk transition line. With increasing Nt the thermal deconfinement transition lines shift to increasingly weaker coupling, joining onto the bulk transition line at increasingly larger βa in a pattern consistent with the usual universality picture of lattice gauge theories. We also discuss the possible consequences of an induced adjoint term from the fermionic determinant and determine this induced term numerically with a microcanonical demon method for two flavors of dynamical Wilson fermions.

AB - We study the thermal phase diagram of pure SU(3) lattice gauge theory with fundamental and adjoint couplings. We improve previous estimates of the position of the bulk transition line and determine the thermal deconfinement transition lines for Nt = 2, 4, 6, and 8. The endpoint of the bulk transition line (βf, βa) = (4.00(7), 2.06(8)) improves upon earlier estimates obtained using smaller lattice sizes. For Nt > 4 the deconfinement transition line splits cleanly away from the bulk transition line. With increasing Nt the thermal deconfinement transition lines shift to increasingly weaker coupling, joining onto the bulk transition line at increasingly larger βa in a pattern consistent with the usual universality picture of lattice gauge theories. We also discuss the possible consequences of an induced adjoint term from the fermionic determinant and determine this induced term numerically with a microcanonical demon method for two flavors of dynamical Wilson fermions.

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U2 - 10.1016/0550-3213(95)00137-9

DO - 10.1016/0550-3213(95)00137-9

M3 - Article

AN - SCOPUS:0001090497

SN - 0550-3213

VL - 442

SP - 301

EP - 316

JO - Nuclear Physics, Section B

JF - Nuclear Physics, Section B

IS - 1-2

ER -