Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title Current Experiments in Elementary Particle Physics (Revised June 1992) Permalink https://escholarship.org/uc/item/9nq1v8zc Author Galic, H. Publication Date 1992-06-01 Peer reviewed eScholarship.org Powered by the California Digital Library University of California i '" _ ;-_ ; LBL-91 Rcviscd UC-414 OSTI CURRENT EXPERIMENTS IN ELEMENTARY PARTICLE PHYSICS Particle Data Group H. Galid Stanford Linear Accelerator Center, Stanford University, Stanford, CA 94305 USA C.G. Wohl, Bo Armstrong (Technical Associate) Particle Data Group, Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA D.C. Dodder Los Alamos National Laboratory, Los Alamos, NM 87545, USA V.I. Klyukhin, Yu.G. Ryabov Institute for High Eneryy Physics, Serpukhov, 142284 Protvino, Moscow Region, Russia N.S. Illarionova Institute of Theoretical and Experimental Physics, 117259 Moscow, Russia F. Lehar DPhPE-SEPh, CEN Saclay, F-91190 Gif-sur- Yvette, France Y. Oyanagi Faculty of Sciences, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan A. Olin TRIUMF, 4004 Wesbrook Mall, Vancouver BC V6T 2A3, Canada R. Frosch Paul Scherrer Institute. CH-5232 Villigen PSI, Switzerland DISCLAIMER This document was prepared as an account of work sponsored by the United States Government. Neither the United Stlstes Government nor any agency thereof, nor Tile Regents of the University of Califor- nia, nor any of their employees, makes any warranty, express or im- plied, or assumes ally legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use .,ould not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by its trade name, trademark, manufac- turer, or otherwise, does not necessarily constitute or imply its en- dorsement, recommendation, or favoring by the UnitcKi States Gov- ernment or any agency thereof, or The Regents of the University of California. Tile views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof or The Regents of the University of California and shall not be used for advertising or product endorsement pur- poses. This report has been reproduced directly from the best available copy. Available to DOE and DOE Contractors from the Office of Scientific and Technical Information P.O. Box 62, Oak Ridge, TN 37831 Prices available from (615) 576-8401, FTS 626-8401 Available to the public from the National Technical Information Service U.S. Department of Commerce 5285 Port Royal Road, Springfield, VA 22161 Lawrence Berkeley Laboratory is an equal opportunity employer. LBL-91 R(.wised UC-414 June 1992 CURRENT EXPERIMENTS IN ELEMENTARY PARTICLE PHYSICS Particle Data Group H. Gali6 Stanford Linear Accelerator Center, Stanford University, Stanford, CA 94305 USA C.G. Wohl, B. Armstrong (Technical Associate) Particle Data Group, Lawrence Berkeley Laboratory, Berkeley, CA 94 720, USA D.C. Dodder Los Alamos National Laboratory, Los Alamos, NM 87545, USA V.I. Klyukhin, Yu.G. Ryabov Institute for High Energy Physics, Serpukhov, 142284 Protvino, Moscow Region, Russia N.S. Illarionova Institute of Theoretical and Experimental Physics, 117259 Moscow, Russia F. Lehar DPhPE-SEPh, CEN Saclay, F-91190 Gif-sur- Yvette, France Y. Oyanagi Faculty of Sciences, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan A. Olin TRIUMF, 4004 Wesbrook Mall, Vancouver BC V6T 2A3, Canada R. Frosch Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland Abstract This report contains summaries of 584 current an'] recent experiments in elementary particle physics. Experiments that finished taking data before 1986 are excluded. Included are experiments at Brookhaven, CERN, CESR, DESY, Fermilab, Tokyo Institute of Nuclear Studies, Moscow Institute of Theoretical and Experimental Physics, KEK, LAMPF, Novosibirsk, Paul Scherrer Institut (PSI), Saclay, Serpukhov, SLAC, SSCL, and TRIUMF, and also several underground and underwater experiments. Instructions are giver for remote searching of the com- puter database (maintained under the SLAC/SPIRES system) that contains the summaries. The publication of this report is supported by the Director, Office of Enewy Research, Office of High Energy and Nuclear Physics, Division of High Energy Physics of the U.S. Department of Enewy under Contract No. DE ACO,'? 76SF00098, and by the U.S. National Science Foundation under Agreement No. PHY86 15529. Partial funding to cover the cost of the publication is also provided by an implementing arTungemcnt between the governments of Japan (Monbusho) and the United States (DOE) on cooperative research and development. H. Galid is partially supported by the Particle Data Group, and partially by the U.S. Department of Energy under Cont_uct No. DE AC03 76SF00515. TABLE OF CONTENTS Introduction 1 Searching the EXPERIMENTS computer database 3 Indices to the summaries Beam-target momcntuin 7 Spokcsperson 15 Abbreviations used in the summaries Journals 21 Kinematic variables 22 Accelerators 22 Detectors 23 Particles 26 Summaries of experiments BNL 35 CERN 49 CESR 76 DESY 77 FNAL 82 INS (Institute for Nuc'lear Studies, Tokyo) 95 ITEP (Institute for Theoretical and Experimental 98 Physics, Moscow) KEK 104 LAMPF 110 Novosibirsk 118 PSI/SIN 119 Saclay 123 Serpukhov 130 SLAC 141 SSCL 147 TRIUMF 148 Underground/Underwater 154 INTRODUCTION This report contains summaries of 584 al)proved current and recent experiments in ele_nentary particle physics. A glance at the summaries ill the body of the report will show tt_e kiil(l of information given. Experiments at the following laboratories are included: Brookhaven (BNL) Novosil)irsk CERN Paul Scherrer Institut(: (PSI) fl)rmerly SIN CESR Saclay DESY Serpukhov Fermilab (FNAL) SLAC Institute for Nuclear Studies, Tokyo (INS) SSCL Institute for Theoretical and Experimental TRIUMF Physics, Moscow (ITEP) Underground experiments KEK Underwater experiments Los Alamos (LAMPF) We exclude experiments for which the data collection was finished before 1986. The rationale for thus including many rather old experiments is that many of them are still producing papers; note that a summary includes a list of journal papers resulting from the experiment. We also exclude experiments mostly of interest to nuclear physicists, dealing with nuclear levels or other nuclear-structure measurements. There are of course experiments at the fuzzy borderline between particle and nuclear physics, and we have tried to make sensible choices about what experiments to include here. Sources of information Our first information about an experiment usually comes from the proposal for the experiment. Then we follow the progress of the experiment as best we can in laboratory reports such as "Experiments at CERN." Finally, a few months b,'.fore an edition of this report is to appear, we send copies of the summaries of the experiments to the spokespersons for checking and updating. If a reply is received -- as was the case for almost 80% of the experiments ...... there is a ",/" next to the spokesperson on the summary. Since current experiments are often in flux, we rely heavily on these replies to be up to date: no _' by the spokesperson means the summary may be inaccurate or incomplete. (For a handful of experiments, we verified our information with a local member of the experiment, not the spokesperson, but for siinplicity put a ,/ by the spokespers:)n. For experiments with more than one spokesperson, all the spokespersons are checked even if only one of them replied.) Computer database --- This report is produced from a computer database maintained at SLAC under the SPIRES database management system. The database, named EXPERIMENTS, also contains information from earlier editions of this report about many experiments completed before 1986 (going back to about 1975, and including experiments at Argonne and Rutherford). See page 3 for a guide to using the EXPERIMENTS database via the remote server QSPIRES. Summaries Each summary lists several dates related to the experiment: the date of the proposal (in parentheses), the approval date, and when the data-taking began and was completed. The title of the proposal and the most recent list of participants are given, The detector used in the experiment is identified either by a generic name (e.g., counter) o_ by a widely known acronym (e.g., SLD). The most important reactions and particles studied and the beam energy or momentum are listed where known. A brief comment describing the apparatus and the main goals of the experiment may follow. At the end is a list of any journal articles on results or instrumentation of the experiment. 1 Abbreviations -- To keep the sumnmries brief, abbreviations are used to indicate journals, kinematic variables, accelerators, and detectors. The abbreviations are usually obvious but arc defined near the beginning of the report. The abbreviated forms are needed for searching the EXPERIMENTS database online. Acknowledgments -- G. Harigel and M. Varela Diaz (CERN), A. Stevens (BNL), and J. Parker (Fermilab) kindly provided computer files with data oil experiments from their respective institutions, and L. Addis (SLAC) helped with the SPIRES database system. We also thank the hundreds of spokespersons who took the time to reply to our inquiries. Comments and requests -- We invite comments pointing out omissions, obscurities,