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Particle and nuclear physicists frequently take results from Lattice QCD at their face value without probing into their reliability or sophistication. This attitude usually stems from a lack of knowledge of the field. The aim of the present volume is to rectify this by introducing in an elementary way several topics, which we believe are appropriate for, and of possible interest to, both particle and nuclear physicists who are non-experts in the field.
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International Review of Nuclear Physics Vol. 9 Hadronic Physics from lattice QCD INTERNATIONAL REVIEW OF NUCLEAR PHYSICS Editors: T T S Kuo {Stony Brook) & E Osnes (Oslo) Associate Editors: J Blomqvist {Stockholm), A Covello (Napoli), J Flores (Mexico), B Giraud (Saclay), A M Green (Helsinki), R Lemmer (Johannesburg), K F Liu (Kentucky), E Oset (Valladolid), F Petrovich (Tallahassee), J Rasmussen (Berkeley), J Speth (Julich), D Strottman (Los Alamos), R Tamagaki (Kyoto), Y C Tang (Minneapolis), J Vergados (loannina) Vol. 1: QUARKS AND NUCLEI ed/ted by W Weise Vol. 2: COLLECTIVE PHENOMENA IN ATOMIC NUCLEI Proceedings of the Nordic Winter School on Nuclear Physics edited by T Engeland, J Rekstad & J S Vaagen Vol. 3: FEW-BODY PROBLEMS by E Hadjimichael & W Oelert Vol. 4: CLUSTER MODELS AND OTHER TOPICS by Y Akaishi, S A Chin, H Horiuchi & K Ikeda Vols. 5 & 6: RELATIVISTIC HEAVY ION PHYSICS edited by L P Csernai & D D Strottman Vol. 7: ELECTRIC & MAGNETIC GIANT RESONANCES IN NUCLEI edited by J Speth Vol. 8: NUCLEAR METHODS AND THE NUCLEAR EQUATION OF STATE by M Baldo Vol. 9: HADRONIC PHYSICS FROM LATTICE QCD edited by Anthony M Green International Review of Nuclear Physics Vol. 9 Hadronic Physics from lattice QCD edited by Anthony M. Green Helsinki Institute of Physics, Finland \HP World Scientific NEW JERSEY • LONDON • SINGAPORE • BEIJING • SHANGHAI • H O N G K O N G • TAIPEI • CHENNAI Published by World Scientific Publishing Co. Pte. Ltd. 5 Toh Tuck Link, Singapore 596224 USA office: 27 Warren Street, Suite 401-402, Hackensack, NJ 07601 UK office: 57 Shelton Street, Covent Garden, London WC2H 9HE British Library Cataloguing-in-Publication Data A catalogue record for this book is available from the British Library. HADRONIC PHYSICS FROM LATTICE QCD Copyright © 2004 by World Scientific Publishing Co. Pte. Ltd. All rights reserved. This book, or parts thereof, may not be reproduced in any form or by any means, electronic or mechanical, including photocopying, recording or any information storage and retrieval system now known or to be invented, without written permission from the Publisher. For photocopying of material in this volume, please pay a copying fee through the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923, USA. In this case permission to photocopy is not required from the publisher. ISBN 981-256-022-X Printed in Singapore by World Scientific Printers (S) Pte Ltd Preface The aim of this volume is to provide an introduction to Lattice Quantum Chromodynamics (LQCD) for readers that are non-specialists in the field. In particular, we have in mind advanced undergraduates and graduate students — both theorists and experimentalists — who have a background in nuclear and/or particle physics. This leads to a very limited selection being made from the many topics that are covered by LQCD. The particular topics chosen have, in most cases, analogies in more conventional nuclear and particle physics — good examples being the chapters on the interquark potential and the interactions between hadrons, both of which can be compared with the nu