Nuclear Physics B (Proc. Suppl.) 42 (1995) APRIL 1995

LATTICE 94"

Proceedings of the Xllth International Symposium onLattice Field Theory

Bielefeld, Germany27 September -1 October 1994

Edited by

F. KARSCHJ.ENGELSE. LAERMANNB. PETERSSON

Fakultdt fur PhysikUniversitdt BielefeldBielefeld, Germany

NORTH-HOLLAND

VII

CONTENTS

Preface vCommittees vi

Part 1. Plenary Talks

Recent progress in the theory of random surfaces and simplicial quantum gravityJ. Ambjorn 3

The new wave of the APE Project: APEmilleA. Bartoloni, C. Battista, M. Bellacci, S. Cabasino, N. Cabibbo, M. Cosimi, U. Dagostino,F. Marzano, E. Panizzi, P.S. Paolucci, F. Rapuano, W. Rinaldi, R. Sarno, G.M. Todesco,M. Torelli, P. Vicini, F. Laico and R. Tripiccione 17

First order phase transitions of spin systemsA. Billoire 21

Phase transitions in polymeric systems: a challenge for Monte Carlo simulationK. Binder, H.-R Deutsch, U. Micka and M. Miiller 27

The chiral extension of lattice QCDR.C. Brower, K. Orginos and C.-l. Tan 42

A new simulation algorithm for lattice QCD with dynamical quarksB. Bunk, K. Jansen, B. Jegerlehner, M. Luscher, H. Simma and R. Sommer 49

Chiral symmetry on the latticeM. Creutz 56

Towards a perfect fixed point action for SU(3) gauge theoryT.A. DeGrand, A. Hasenfratz, P. Hasenfratz, F. Niedermayer and U. Wiese 67

Finite temperature QCD: progress and outstanding problemsC. DeTar 73

Chiral limit of QCDR. Gupta 85

Phase diagram of QCD at finite temperatures with Wilson fermionsY. Iwasaki 96

Hot electroweak matterK. Kajantie 103

Nontrivial fixed point in the 4D $4 lattice model with internal O(/v) symmetryJ. Kuti 113

Hot results from quadricsE. Laermann, G. Boyd, J. Engels, F. Karsch, C. Legeland, M. LLitgemeier and B. Petersson 120

Weak interactions from lattice QCDG. Martinelli • 127

The status of US Teraflops-scale projectsR.D. Mawhinney 140

The QCD spectrumC. Michael 147

viii Contents

The top quark and the latticeG. Munster 162

A proposal for chiral fermions on the latticeA.A. Slavnov 166

Latest results from heavy quark simulationsJ.H. Sloan 171

Leptonic decays of B- and D-mesonsR. Sommer 186

Status of the CP-PACS ProjectA. Ukawa 194

Quantum phase transitionsA.R Young 201

Part 2. Parallel Talks and Posters

2.1. Pure Gauge

Spin dependent potentials from SU(2) gauge theoryG.S. Bali, K. Schilling and A. Wachter 213

U(1) flux tube profiles from Hamiltonian lattice gauge theory using a random walk ground-stateprojector

C. Best and A. Schafer 216On the reliable measurement of the gluon condensate in lattice QCD

A. Bochkarev 219The width of the colour flux tube

M. Caselle, F. Gliozzi, U. Magnea and S. Vinti 222London penetration length and string tension in SU(2) lattice gauge theory

P. Cea and L. Cosmai 225On T dependence of the static potential V(T; R) in a finite volume

G. Cella, V.K. Mitrjushkin and A. Vicere 228Monopole condensation in the ground state of gauge theories: a disorder parameter

L. Del Debbio, A. Di Giacomo and G. Paffuti 231Monopole condensation and dual superconductivity: the SU(2) case

L. Del Debbio, A. Di Giacomo, G. Paffuti and P. Pieri 234Instantons, chiral symmetry breaking and the fate of the ultimate quenched calculation

N. Dowrick and M. Teper 237Universality, scaling and topology with a modified lattice action

J. Fingberg 240Peeping into the SU(2) gauge vacuum

A. Gonzalez-Arroyo and P. Martinez 243Topological density and instantons on a lattice

J. Grandy and R. Gupta 246Four-quark energies in SU(2) lattice Monte Carlo using a tetrahedral geometry

A.M. Green, J. Lukkarinen, P. Pennanen, C. Michael and S. Furui 249Universal behaviour of the SU(2) running coupling constant in the continuum limit

M. Guagnelli 252How to accurately extract the running coupling of QCD from lattice potential data

T.R. Klassen 255Monopole density around static color sources

H. Markum, W. Sakuler and S. Thurner 258

Contents ix

Instanton size distributions from calibrated coolingC. Michael and RS. Spencer 261

The SU(3) running coupling from lattice gluonsUKQCD Collaboration 264

On the screening of the potential between adjoint sources in QCD3G.I. Poulis and H.D. Trottier 267

6 vacua, confinement and the continuum limitG. Schierholz 270

Color flux profiles in SU(2) lattice gauge theoryC. Schlichter, G.S. Bali and K. Schilling 273

Structure of flux tube in SU(2) lattice gauge theoryH. Shiba 276

Scalar glueball decayJ. Sexton, A. Vaccarino and D. Weingarten 279

Monopole actions in compact QED and in (a—>0, L—> 00) SU(2) QCDT. Suzuki and H. Shiba 282

Determination of effective actions for blocked SU(3) gauge theoryT. Takaishi 285

New results from UKQCD using the Cray T3D: measuring gluonic observablesH. Wittig 288

Two-loop computation of a finite volume running coupling on the latticeU. Wolff 291

2.2 QCD Spectrum and Matrix Elements

Heavy-light baryonic mass splittings from the latticeC. Alexandrou, A. Borrelli, S. Gusken, F. Jegerlehner, K. Schilling, G. Siegert andR. Sommer 297

APE results of hadron masses in full QCD simulationsS. Antonelli, A. Bartoloni, C. Battista, M. Bellacci, S. Cabasino, N. Cabibbo, L.A. Fernandez,E. Panizzi, RS. Paolucci, A. Munoz-Sudupe, J.J. Ruiz-Lorenzo, R. Sarno, A. Tarancon,G.M. Todesco, M. Torelli and P. Vicini 300

Charmonium spectroscopy with heavy Kogut-Susskind quarksS. Aoki, M. Fukugita, S. Hashimoto, N. Ishizuka, H. Mino, M. Okawa, T. Onogi and A. Ukawa 303

Decays rates for S- and P-wave bottomoniumG.T. Bodwin, S. Kim and D.K. Sinclair 306

Accurate hadron spectroscopy on blocked configurations by tadpole-renormalized, clover-improved Wilson quark action

A. Borigi and P. de Forcrand 309Hadron masses in QCD on a 163x40 lattice at (3 = 5.7 with ma = 0.01

D. Chen 312Renormalons on the lattice

M. Crisafulli, V. Gimenez, G. Martinelli and C.T. Sachrajda 315Precision T and J / * spectroscopy with lattice NRQCD

C.T.H. Davies 319TTNCT term and quark spin content of the nucleon

S.-J. Dong and K.-F. Liu 322NRQCD and static systems - a general variational approach

T. Draper, C. McNeile and C. Nenkov 325

x Contents

Cooling in QCD spectroscopyR.G. Edwards, K. Bitar, U.M. Heller and A.D. Kennedy 328

Heavy quark spectroscopyA.K. Ewing 331

Scalar and axial vector matrix elements of proton in quenched QCD: Calculation of bothconnected and disconnected contributions

M. Fukugita, Y. Kuramashi, M. Okawa and A. Ukawa 334Towards a lattice calculation of the nucleon structure functions

M. Gockeler, R. Horsley, M. llgenfritz, H. Perlt, P. Rakow, G. Schierholz and A. Schiller 337Towards the continuum limit with quenched staggered quarks

S. Gottlieb 346How can we measure the length of the quark propagator in lattice QCD?

H. Kroger, S. Lantagne and B. Plache 349Efficient hadronic operators in lattice gauge theory

P. Lacock 352Finite ma corrections for sea quark matrix elements

J.-F. Lagae and K.-F. Liu 355Nucleon masses in strong magnetic fields

H.R. Rubinstein, S. Solomon and T. Wittlich 358The numerical estimation of the error induced by the valence approximation

J.C. Sexton and D.H. Weingarten 361A lattice study of the quark propagator and vertex function

J.I. Skullerud 364Heavy baryon spectroscopy

N. Stella 367Hadron correlators with improved fermions

RW. Stephenson 370P-wave meson properties with Wilson quarks

M. Wingate, T. DeGrand, S. Collins and U. Heller 373

2.3. Weak Matrix Elements

B -> K*7 decay on APEAPE Collaboration, As. Abada, Ph. Boucaud, M. Crisafulli, J.R Leroy, V. Lubicz, G. Martinelli,F. Rapuano, M. Serone, N. Stella, A. Bartoloni, C. Battista, S. Cabasino, N. Cabibbo,E. Panizzi, RS. Paolucci, R. Sarno, G.M. Todesco, M. Torelli and P. Vicini 379

Quenched results on B mesons with NRQCDA. Ali Khan 382

Results for the B-meson decay constant from the APE CollaborationC.R. Allton, M. Crisafulli, V. Lubicz, G. Martinelli, F. Rapuano, G. Salina and A. Vladikas 385

Preliminary heavy-light decay constants from the MILC collaborationC. Bernard, T. Blum, A. De, T. DeGrand, C. DeTar, S. Gottlieb, U.M. Heller, N. Ishizuka,L. Karkkainen, J. Labrenz, A. Soni, R. Sugar and D. Toussaint 388

Update on SK with Wilson fermionsC. Bernard and A. Soni 391

B physics from NRQCD with dynamical fermionsS. Collins 394

Contents xi

Quenched SK-parameter with the Wilson and Clover actions at /? = 6.0M. Crisafulli, A. Donini, V. Lubicz, G. Martinelli, F. Rapuano, C. Ungarelli, A. Vladikas, APECollaboration, A. Bartoloni, C. Battista, S. Cabasino, N. Cabibbo, F. Marzano, E. Panizzi,RS. Paolucci, R. Sarno, G.M. Todesco, M. Torelli and P. Vicini 397

Dependence of the current renormalisation constants on the quark massM. Crisafulli, V. Lubicz, G. Martinelli and A. Vladikas 400

Nonperturbative "lattice perturbation theory"W. Dimm, G.R Lepage and RB. Mackenzie 403

The heavy quark masses from quarkoniaA.X. El-Khadra and B.R Mertens 406

Update on the lattice calculation of B —»K*7B. Gough 409

Semileptonic decays of heavy mesons: a status reportS. Giisken, K. Schilling and G. Siegert 412

Improved currents for heavy quarksA.S. Kronfeld 415

K°-K° mixing in full lattice QCDW. Lee and M. Klomfass 418

Semi-leptonic decays of B-mesonsL. Lellouch 421

Structural properties of the lattice heavy quark effective theoryJ.E. Mandula and M.C. Ogilvie 424

Results from a non-perturbative renormalization of lattice operatorsG. Martinelli, C. Pittori, C.T. Sachrajda, M. Testa and A. Vladikas 428

A lattice study of semi-leptonic decays of D-mesonsJ. Nieves 431

Heavy-light meson studies with O(a)-improved massive quarksT. Onogi and J.N. Simone 434

Form factors for semileptonic decays of heavy-light hadronsA. Patel 440

2.4. QCD at Finite Temperature or Density

Analyzing finite temperature mesonic correlatorsQCD-TARO Collaboration, K. Akemi, M. Fujisaki, M. Okuda, Y. Tago, T. Hashimoto, S. Hioki,O. Miyamura, A. Nakamura, Ph. de Forcrand, I.O. Stamatescu and T. Takaishi 445

QCD thermodynamics at A/t = 8 and 12C. Bernard, T. Blum, T. DeGrand, C. DeTar, S. Gottlieb, U.M. Heller, L. Karkkainen,A. Kennedy, S. Kim, J. Kogut, R. Renken, K. Rummukainen, D.K. Sinclair, R. Sugar,D. Toussaint and K. Wang 448

Wilson thermodynamics at A/t = 8C. Bernard, T. Blum, T.A. DeGrand, C. DeTar, S. Gottlieb, U. Heller, L. Karkkainen,K. Rummukainen, R. Sugar and D. Toussaint 451

Entropy and baryon number conservation in strong coupling thermodynamicsN. Bilic 454

SU(3) lattice gauge theory with adjoint action at nonzero temperatureT. Blum, C. DeTar, U.M. Heller, L. Karkkainen and D. Toussaint 457

The 0 function and equation of state of two flavor QCDT. Blum, S. Gottlieb, L. Karkkainen and D. Toussaint 460

xii Contents

Confining properties of noncompact gauge theories at finite temperatureO. Borisenko, V. Petrov and G. Zinovjev 466

Hadrons just before deconfinementG. Boyd, S. Gupta, F. Karsch, E. Laermann, B. Petersson and K. Redlich 469

Some analytical results in (2+1) dimensional l.g.t.M. Caselle 472

Critical behavior of the chiral condensate at the QCD phase transitionS. Chandrasekharan 475

Chiral condensates in finite-temperature lattice QCD with Wilson fermionsA. Di Giacomo and E. Meggiolaro 478

String tension and monopoles in T^ 0 SU(2) QCDS. Ejiri, S.-i. Kitahara, Y. Matsubara and T. Suzuki 481

Triality and the grand canonical ensemble in QCDM. Faber, O. Borisenko, S. Mashkevich and G. Zinovjev 484

Topological charge density around static colour sources in lattice QCD with dynamical quarksM. Faber, H. Markum, S. Olejnik and W. Sakuler 487

The deconfinement transition in SU(2) Lattice Gauge TheoryR.V. Gavai and M. Mathur 490

Infrared behaviour of systems with Goldstone bosonsN.D. Hari Dass, H.S. Sharatchandra, R. Anishetty and R. Basu 493

Topological structures around the thermal phase transition of pure SU(3) gauge theory studiedon a Quadrics Q16

E.-M. llgenfritz, E. Meggiolaro and M. Muller-Preuftker 496Nature of the finite temperature transition in QCD with strange quark

Y. Iwasaki, K. Kanaya, S. Kaya, S. Sakai and T. Yoshie 499Finite temperature transition in two flavor QCD with renormalization group improved action

Y. Iwasaki, K. Kanaya, S. Sakai and T. Yoshie 502Do Wilson fermions induce an adjoint gauge action?

L. Karkkainen and K. Rummukainen 505Landau gauge fixing and finite temperature gluon propagator in SU(2) lattice gauge theory

F. Karsch and J. Rank 508Monopoles and deconfinement transition in finite temperature SU(2) QCD

S.-i. Kitahara, Y. Matsubara and T. Suzuki 511Quenched QCD at finite density: g = 1 and g = oo

J.B. Kogut, M.-R Lombardo and D.K. Sinclair 514Gauge theory in of=2+1 at high temperature: ZN interface

C. Korthals Altes, A. Michels, M. Stephanov and M. Teper 517Screening in (2+1 )D pure gauge theory at high temperatures

E. Laermann, C. Legeland and B. Petersson 520Three-dimensional SU(3) gauge theory and the spatial string tension of the (3+1)-dimensionalfinite temperature SU(3) gauge theory

M. Lutgemeier 523Transport coefficients from lattice QCD thermodynamics

N. Masuda, A. Nakamura, S. Sakai, F. Shoji and J. Urakawa 526Monopole effects on Polyakov loop and its gauge independence in QCD

Y. Matsubara, S. llyar, T. Okude, K. Yotsuji and T. Suzuki 529An effective action for finite temperature QCD with fermions

P.N. Meisinger and M.C. Ogilvie 532

Contents xiii

QCD at finite baryon density with f-asymmetric fermionsE. Mendel and L. Polley 535

Abelian dominance of chiral symmetry breaking on SU(2) latticeO. Miyamura 538

Finite temperature QCD interfaces out of equilibriumM.C. Ogilvie 541

Compressing gluonsJ. Polonyi and Z. Schram 544

Lee-Yang zeros and the chiral phase transition in compact QEDG. Salina 547

New results on the instanton vacuum and the chiral phase transitionE. Shuryak 550

SU(2) monopoles at finite temperatureJ.D. Stack 554

Finite density results for Wilson fermions using the volume methodW. Wilcox, S. Trendafilov and E. Mendel 557

2.5. Electroweak Phase Transition

Spacelike Wilson loops in Finite Temperature SU(2) gauge-Higgs systemG.K. Bathas and G. Koutsoumbas 563

Monte-Carlo methods and results for the electro-weak phase transitionB. Bunk 566

The electroweak phase transition: a non-perturbative lattice investigationF. Csikor, Z. Fodor, J. Hein, K. Jansen, A. Jaster and I. Montvay 569

The sphaleron energy for SU(2)-Higgs from coolingM. Garcia Perez and P. van Baal 575

Miscellaneous results on the electroweak phase transitionE.-M. llgenfritz and A. Schiller 578

Effective scalar theory of the electroweak phase transitionF. Karsch, T. Neuhaus and A. Patkos 581

A self consistent study of the phase transition in the scalar electroweak theory at finitetemperature

U. Kerres, G. Mack and G. Palma 584Numerical studies of instanton induced baryon decay

C. Rebbia and R. Singleton Jr. 587Sphaleron transition rate at high temperature in the 1+1 D abelian Higgs model

J. Smit and W.H. Tang 590

2.6. Chiral Gauge Theories and Higgs Models

Roma versus ZaragozaJ.L. Alonso, Ph. Boucaud, F. Lesmes and A.J. van der Sijs 595

Asymptotic scaling from strong coupling in 2-d lattice chiral modelsM. Campostrini, P. Rossi and E. Vicari 598

Strong coupling expansion of chiral modelsM. Campostrini, P. Rossi and E. Vicari 601

Chiral fermion field on random latticesT.W. Chiu 603

xiv Contents

The Coulomb-Higgs transition of the three-parameter U(1)-Higgs modelA. Cruz, D. Ifiiguez, A. Tarancon, L.A. Fernandez and A. Munoz Sudupe 606

Spectrum and scaling in a strongly coupled fermion-gauge-scalar modelW. Franzki and X.-Q. Luo 609

Dynamical fermion mass generation in strongly coupled gauge theories with scalar fieldC. Frick and J. Jersak 612

Composite weak bosons: a lattice analysisA. Galli 615

Anisotropic gauge theories: a numerical study of the Fu-Nielsen modelA. Hulsebos 618

A numerical attempt on the chiral Schwinger modelT.D. Kieu and P.S. Hawkins 621

More on random-lattice fermionsT.D. Kieu, J.F. Markham and C.B. Paranavitane 624

Lattice study of the decoupling of heavy fermionsL. Lin 627

Strongly interacting Higgs sector without technicolorC. Liu, K. Jansen and J. Kuti 630

Chiral transition in a strongly coupled fermion-gauge-scalar modelX.-Q. Luo and W. Franzki 633

Gauge theories with a layered phaseS. Nicolis 636

Numerical simulations of an SU(2)L(2)SU(2)R-symmetric Higgs-Yukawa model on theQUADRICS Q16

M. Plagge and D. Talkenberger 639Spin chains and chiral lattice fermions

H.B. Thacker 642Which Higgs-Yukawa systems can possess non-trivial fixed points

S.V. Zenkin 645

2.7. Quantum Electrodynamics

Partition function zeros in non-compact QEDA. Ali Khan and I. Barbour 651

Phase transitions in lattice QEDM. Baig 654

Effective meson-meson interaction in 2+1 dimensional lattice QEDJ.D. Canosa, H.R. Fiebig and H. Markum 657

Probing the continuum limit in non-compact QED: new results on large latticesM. Gockeler, R. Horsley, V. Linke, P.E.L. Rakow, G. Schierholz and H. Stiiben 660

Improving the lattice QED actionS. Hands 663

Modified lattice QED with staggered fermionsA. Hoferichter, V.K. Mitrjushkin and M. Miiller-Preussker 666

Pseudoscalar correlators and the problem of the chiral limit in the compact lattice QED withWilson fermions

A. Hoferichter, V.K. Mitrjushkin and M. Muller-Preussker - 669Evidence for a critical behavior in 4D pure compact QED

J. Jersak, C.B. Lang and T. Neuhaus 672

Contents xv

Topological structures and phases in U(1) gauge theoryW. Kerler, C. Rebbi and A. Weber 675

Dynamical-parameter algorithm for U(1) gauge theoryW. Kerler, C. Rebbi and A. Weber 678

Quenched QED on a momentum space latticeJ.B. Kogut and J.-F. Lagae 681

First-order signals in compact QED with monopole suppressed boundariesTh. Lippert, A. Bode, V. Bornyakov and K. Schilling 684

On strongly coupled quenched QED4, again: chiral symmetry breaking, Goldstone mechanismand the nature of the continuum limit

M.-R Lombardo, A. Kocic and J.B. Kogut 687The chiral phase transition of QED at finite charge density

M. Plewnia and I.O. Stamatescu 690Monopoles and cooling in 4-dimensional U(1) lattice gauge theory

R. Wensley and C. Harich 693Electric fields and monopole currents in compact QED

M. Zach, M. Faber, W. Kainz and P. Skala 696

2.8. Quantum Gravity and Random Surfaces

Intrinsic geometry of c = 1 random surfacesJ. Ambj0rn, P. Biates, Z. Burda, J. Jurkiewicz and B. Petersson 701

Computational ergodicity in simplicial quantum gravityJ. Ambjorn and J. Jurkiewicz 704

SU(2) potentials in quantum gravityW. Beirl, B.A. Berg, B. Krishnan, H. Markum and J. Riedler 707

Quantum gravity and spin systemsW. Beirl, P. Homolka, B. Krishnan, H. Markum and J. Riedler 710

Regge's space-time skeletons and the quantization of 2d gravityW. Bock 713

Dynamical triangulation with fluctuating topologyB.V. de Bakker 716

Exploring curvature and scaling in 4D dynamical triangulationB.V. de Bakker and J. Smit 719

Measure dependence of 2D simplicial quantum gravityC. Holm and W. Janke 722

The Ising transition in 2D simplicial quantum gravity - can Regge calculus be right?C. Holm and W. Janke 725

Random geometries and real space renormalization groupD.A. Johnston, J.-R Kownacki and A. Krzywicki 728

The forgotten Potts modelsG. Thorleifsson 731

2.9. Spin Models

Continuum limit of field theories regularized on a random latticeB. Alles, M. Beccaria, L. Del Debbio and R. Del Real 737

Low-temperature series for Ising model by finite-lattice methodH. Arisue and K. Tabata 740

xvi Contents

Very large energy cumulants of the 2D Potts modelT. Bhattacharya, R. Lacaze and A. Morel 743

Flavor-parity breaking in the NJL model with Wilson fermionsK.M. Bitar and P.M. Vranas 746

New method for the extrapolation of finite-size data to infinite volumeS. Caracciolo, R.G. Edwards, S.J. Ferreira, A. Pelissetto and A.D. Sokal 749

Two-dimensional 0(3) u-model up to correlation length 105

S. Caracciolo, R.G. Edwards, A. Pelissetto and A.D. Sokal 752Rough interfaces beyond the Gaussian approximation

M. Caselle, F. Gliozzi, S. Vinti, R. Fiore, M. Hasenbusch and K. Pinn 75524-th order high temperature expansion for the 3-d Ising model

U. Glassner, G. Bhanot, M. Creutz and K. Schilling 758The three-state antiferromagnetic Potts model: scaling laws

A.R Gottlob and M. Hasenbusch 761An improved estimator for the correlation function of 2D nonlinear sigma models

M. Hasenbusch 764Universal amplitude ratios in Ising systems from massive field theory

J. Heitger and G. Munster 767Ordered vs disordered: Correlation lengths of 2D Potts models at fa

W. Janke and S. Kappler 770Logarithmic corrections to scaling in the XY2-model

R. Kenna and A.C. Irving 773Complex-temperature singularities of the susceptibility in the d = 2 Ising model

R. Shrock 776A new approach to instanton calculations in the 0(3) nonlinear cr-model

J. Snippe and P. van Baal 779Fermion-fermion scattering in the Gross-Neveu model - a status report

J. Westphalen, M. Gockeler, H.A. Kastrup and J. Viola 782

2.70 Renormalization Group and New Actions

QCD on coarse latticesM. Alford, W. Dimm, G.R Lepage, G. Hockney and P.B. Mackenzie 787

Perfect lattice actions for the Gross-Neveu modelW. Bietenholz, E. Focht and U.-J. Wiese 790

Toward the QCD (3 function with dynamical Wilson fermionsK.M. Bitar, R.G. Edwards, U.M. Heller, A.D. Kennedy and P. Vranas 796

Perfect topological charge for asymptotically free theoriesM. Blatter, R. Burkhalter, P. Rasenfratz and F. Niedermayer 799

A proposal of a Monte Carlo renormalization group transformationL.A. Fernandez, A. Mufioz Sudupe, J.J. Ruiz-Lorenzo and A. Tarancon 802

MCRG study and renormalized coupling constantsQCD-TARO Collaboration, M. Fujisaki, M. Okuda, Y. Tago, Ph. de Forcrand, T. Hashimoto,S. Hioki, O. Miyamura, A. Nakamura, F. Shoji, I.O. Stamatescu and T. Takaishi 805

Canonical demon Monte Carlo renormalization groupM. Hasenbusch, K. Pinn and C. Wieczerkowski 808

The derivative expansion of the renormalization groupT.R.Morris 811

Contents xvii

2.11. Analytic Results

Inter-plaquette correlations in U(1) Hamiltonian lattice gauge systemsN.J. Davidson and R.F. Bishop 817

Composite operators as integration variables in Berezin integralsG. DeFranceschi and F. Palumbo 820

Dynamics on the SU(2) fundamental domainB. van den Heuvel and P. van Baal 823

The perturbative method fails in non-Abelian modelsA. Patrascioiu and E. Seiler 826

Hierarchical renormalization group fixed pointsA. Pordt 829

Exp S methods and lattice QCD with fermionsD. Schutte, A. Spitz and V. Zota 832

The Schrodinger functional in QCDS. Sint 835

Lattice fermion formulation with one-sided derivativesI.O. Stamatescu and T.T. Wu 838

2.12 Algorithms

Some comments on Laplacian gauge fixingP. van Baal 843

ISU - Multigrid for computing propagatorsM. Baker 846

Localization in lattice gauge theoryM. Baker 849

New algorithm for gauge fixing in SU(2) lattice gauge theoryG.S. Bali, V. Bornyakov, M. Miiller-Preussker and F. Pahl 852

Extrapolation methods for the Dirac inverter in hybrid Monte CarloR.C. Brower, A.R. Levi and K. Orginos 855

Noncompact gauge-invariant simulations of U(1), SU(2), and SU(3)K. Cahill and G. Herling 858

The continuum limit of the lattice Gribov problem, and a solution based on Hodge decompositionP. de Forcrand and J.E. Hetrick 861

Weak coupling perturbation theory by Langevin dynamics: fourth loop and beyondF. Di Renzo, G. Marchesini, P. Marenzoni and E. Onofri 867

Construction of staples in lattice gauge theory on a parallel computerS. Hioki 870

Topological updating schemes: a case study in 3-d U(1)A. Hulsebos and P. Ueberholz 873

Multibondic cluster algorithmW. Janke and S. Kappler 876

Study of a new simulation algorithm for dynamical quarks on the APE-100 parallel computerB. Jegerlehner 879

Spectrum of the Dirac operator and inversion algorithms with dynamical staggered fermionsT. Kalkreuter 882

Langevin thermalization of classical gauge theoriesA. Krasnitz 885

xviii Contents

CORE - A new computational method for lattice systemsC.J. Morningstar and M. Weinstein 888

Dynamical fermion simulations using Luscher's local bosonic action algorithmM. Peardon 891

Tuning up an oldtimer: hybrid Monte Carlo with Wilson fermionsK. Schilling, A. Frommer, V. Hannemann, Th. Lippert and B. Nockel 894

2.13 Miscellaneous

QCD on a highly parallel vector computerH. Aiso, M. Fukuda, T. Iwamiya, M. Mizutani, A. Nakamura, T. Nakamura and M. Yoshida 899

Architectural choices for the Columbia 0.8 Teraflops machineI.V. Arsenin 902

Groundstates of the 3d Edwards-Anderson spin glass modelB.A. Berg, U.H.E. Hansmann and T. Celik 905

Random walk model on a hyper-spherical latticeS. Boettcher 908

Recent developments in the study of walks, polygons and the Ising modelA.J. Guttmann, A.L. Owczarek, D. Bennett-Wood and T. Prellberg 911

Multicanonical approach in statistical mechanics of peptidesU.H.E. Hansmann and Y. Okamoto 914

Monte Carlo simulation of 1+1-dimensional cf>4 quantum field theoryW. Janke and T. Sauer 917

Lattice QCD calculation using VPP500S. Kim and S. Ohta 920

Gauge theory of things aliveG. Mack 923

Renormalization group and continuum limit in Quantum MechanicsJ. Polonyi 926

Benchmarking stochastic techniques in quantum mechanics: hunting for excited statesG. Ritzenhofer and K. Schilling 929

Hubbard Model with Luscher fermionsP. Sawicki and J. Wosiek 932

Phenomenology from 100 large latticesT. Bhattacharya and R. Gupta 935

A loop expansion for the fermion determinantR. Petronzio 942

List of Participants 945Author Index 963