Proceedings of the Seventeenth LAMPF Users Group Meeting Los Alamos National Laboratory Los Alamos, New Mexico November 7-8,1983
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H0T1C6 LA—100C0-C ability. DS84 01413 4 Proceedings of the Seventeenth LAMPF Users Group Meeting Los Alamos National Laboratory Los Alamos, New Mexico November 7-8,1983 Compiled by James N. Bradbury Editing and Production Kit Ruminer Beverly Talley DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsi- bility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Refer- ence herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recom- mendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Los Alamos National Laboratory Los Alamos, New Mexico 87545 ABSTRACT The Seventeenth Annual LAMPF Users Group Meeting was held November 7-8, 1983, at the Clinton P. Anderson Meson Physics Facility. The program included a number of invited talks on various aspects of nuclear and particle physics as well as status reports on LAMPF, A panel discussion on the LAMPF II concept provided an exchange of views among an advisory group, Users, and LAMPF staff. The LAMPF working groups met and discussed plans for each of the secondary beam lines. IV LAMPF USERS GROUP PROCEEDINGS November 1983 Los Alamos National Laboratory CONTENTS PROGRAM 2 STATUS OF LAMPF, Louis Rosen 4 OPERATIONS REPORT, Andrew Browman 15 STATUS REPORT ON THE PULSED SPALLATION NEUTRON SOURCE AT THE LOS ALAMOS NATIONAL LABORATORY. Charles D. Bowman 20 STATUS OF LAMPF II. H.A. Thiessen 28 PANEL DISCUSSION OF LAMPF II PROPOSAL 37 NEW APROACH TO POLARIZED PROTON SCATTERING BASED ON DIRAC DYNAMICS. Stephen J. Wallace 45 MUON-NEUTRINO PHYSICS BEFORE THE PSR, G. J. Stephenson, Jr 62 ENERGY AND ANGULAR DEPENDENCE OF THE TENSOR POLARIZATION r20 IN nd ELASTIC SCATTERING. W. Griiebler 66 TENSOR POLARIZATION IN PION-DEUTERON ELASTIC SCATTERING, R. J. Holt 76 NUCLEON-NUCLEON PHASE-SHIFT ANALYSIS UP TO 800 MeV. C. Lechanoine-LeLuc 86 A STUDY OF NEUTRINO-ELECTRON ELASTIC SCATTERING. H. H. Chen .... 98 SIMPLE FEATURES OF (pn~) REACTIONS NEAR THRESHOLD. Steven Vigdor (not available) 107 WORKING GROUP MEETINGS 108 Energetic Pion Channel and Spectrometer (EPICS) 108 Solid-State Physics and Materials Science •. 108 Nucleon Physics Laboratory (NPL)/Polarized Facilities 110 Muon-Spin Rotation (uSR) Ill Low-Energy Pion (LEP) Channel Ill Nuclear Chemistry 112 High-Resolution Spectrometer (HRS) 113 High-Energy Pion (P3) Channel 114 Stopped Muon Channel (SMC) 115 Computer Facilities 116 Neutrino Facilities 117 November 1983 LAMPF USERS GROUP PROCEEDINGS V Los Alamos National Laboratory PARTICIPANTS 126 LAMPF USERS GROUP NEWS 134 1984 Board of Directors of the LAMPF Users Group, Inc 134 1984 Working Group Chairmen 134 Notice of Date for Next Users Grou}, Inc., Meeting 135 LAMPF Program Advisory Comm.itee (PAC) 135 1984 Technical Advisory Panel (TAP) of the LAMPF Users Group. Inc 136 Science Policy Advisory Committee (SPAC) 136 LAMPF USERS GROUP, INC.. (LUGI) MINUTES 137 Board of Directors 137 Technical Advisory Panel 138 SUMMARIES OF RECENT LAMPF PROPOSALS 141 VI LAMPF USERS GROUP PROCEEDINGS November 1983 Los Alamos National Laboratory PROCEEDINGS OF THE SEVENTEENTH LAMPF USERS GROUP MEETING Los Alamos National Laboratory November 7-8, 1983 November 1983 LAMPF USERS GROUP PROCEEDINGS 1 Los Alamos National Laboratory PROGRAM SEVENTEENTH ANNUAL LAMPF USERS GROUP MEETING Los Alamos National Laboratory November 7-8. 1983 Chairman: George Igo, University of California at Los Angeles Chairman-Elect: Charles Glashausser, Rutgers College Monday, November 7 LAMPF Auditorium, Laboratory-Office Building (MPF-I, TA-53) MORNING SESSION George Igo, Presiding 8:00 - 9:00 a.m. Registration 9:00 - 9:15 Welcome — Warren F. Miller, Associate Director of the Los Alamos National Laboratory 9:15 - 10:00 LAMPF Status Report — Louis Rosen, Director of LAMPF 10:00 - 10:30 LAMPF Operations Report — Andrew A. Browman (Los Alamos) 10:30 -11:00 COFFEE BREAK 11:00 - 11:15 Annual Users Group Report — George Igo, Chairman of Board of Directors General Business Session Election Results Winner of Louis Rosen Prize Treasurer's Report 11:15 - 12:00 Proton Storage Ring Research — Charles Bowman (Los Alamos) 12:00 - 1:30 p.m. LUNCH — Buses to the Laboratory Support Complex Cafeteria 1:30 p.m. LAMPF Auditorium, Laboratory-Office Building (MPF-1, TA-53) AFTERNOON SESSION Charles Glashausser, Presiding 1:30 - 2:15 p.m. Steven J. Wallace (University of Maryland) — "New Approach to Polarized-Proton Scattering Based on Dirac Dynamics" 2:15 - 2:45 Henry A. Thiessen (Los Alamos) — "Progress Report—LAMPFII" 2:45 - 3:15 Gerard Stephenson (Los Alamos) — "Muon Neutrino Physics Before the PSR" 3:15 - 3:30 COFFEE BREAK 3:30 - 5:00 Round table discussion on the present LAMPF II concept in the context of nuclear and particle physics needs Jie 1990s — SPAC Committee and Board of Directors Moderator — Erich W. Vogt (TRIUMF) 7:00 p.m. BANQUET at RANCHO ENCANTADO (Tickets to this event must be purchased in advance.) 2 LAMPF USERS GROUP PROCEEDINGS November 7983 Los Alamos National Laboratory Tuesday, November S LAMPF Auditorium, Laboratory-Office Building (MPF-I, TA-53) MORNING SESSION 8:30 - 9:00 i.m. Wilii Griiebler (ETH), "Energy and Angular Dependence of the Tensor Polarization T20 in 7td Elastic Scattering" 9:00 - 9:30 Roy Holt (Argonne) — "Tensor Polarization in Pion-Deuteron Elastic Scattering" 9:30 - 10:15 Steven Vigdor (Indiana University) — "Simple Features of(pn~) Reactions Near Threshold" 10:15 - 10:45 COFFEE BREAK 10:45 -11:30 Catherine Lechanoine-Leluc (University of Geneve) — "pp and np Phase Shifts up to SOOMeV" 11:30-12:15 p.m. Herbert Chen (University of California, Irvine) — "Status of Exp, 225, A Study of Neutrino- Electron Elastic Scattering" 12:15 - 1:30 LUNCH — Buses to the Laboratory Support Complex Cafeteria 1:30 p.m. LAMPF Auditorium, Laboratory-Office Building (MPF-I, TA-53) AFTERNOON SESSION 1:30- 2:15 p.m. A. Trivelpiece, DOE 2:15-3:30 p.m. WORKING GROUP MEETINGS EPICS (Energetic Pion Channel Susan Seestrom-Morris (Los Alamos), Chairman LAMPF, Room A-234 and Spectrometers LEP (Low-Energy Pion Channel) Barry Preedom (University of South Carolina), Chairman LAMPF, Room D-105 Neutrino Facilities Herbert Chen (University of California. Irvine), Chairman LAMPF Auditorium NPL (Nucleon Physics Laboratory) Olin van Dyck (Los Alamos), Chairman Polarized Facilities Michael McNaughton (Los Alamos), Chairman LAMPF. Room A-114 Computer Facilities Michael McNaughton (Los Alamos), Chairman SMC (Stopped Muon Channel) Gary Hogan (Temple University), Chairman (Appointed) LAMPF, Room A-142 3:30- 5:00 p.m. HRS (High-Resolution Kevin Jones (UCLA), Chairman LAMPF, Room A-234 Spectrometer) uSR (Muon Spin Rotation) Carolus Boekema (Texas Tech), Chairman LAMPF, Room A-228 Nuclear Chemistry Jan Wouters (Los Alamos), Chairman LAMPF, Room D-105 P3 (High-Energy Pion Channel) William Briscoe (George Washington University), Chairman LAMPF, Room A-218 Solid-State Physics and Walt Sommer (Los Alamos), Chairman LAMPF. MP-14 Materials Science Conference Room 4;30-5:30 p.m. Computer Facilities Michael McNaughton(Los Alamos), Chairman LAMPF Auditorium (5-year plan) November 1983 LAMPF USERS GROUP PROCEEDINGS 3 Los Alamos National Laboratory STATUS OF LAMPF Louis Rosen, Director Los Alamos Meson Physics Facility Los Alamos National Laboratory Introduction This, the 17th meeting of the LAMPF Users Group, Inc., (LUGI) may represent a turning point in your association with LAMPF. The winds of change are very strong. The federal laboratories have been studied and some of them have been found wanting. The most severe criticism is that many of them have outgrown their original mission; others are perceived as having diversified to such an extent as to compromise their major goals. More than one laboratory will be redirected and reorganized, hopefully for the better. The Los Alamos National Laboratory is, in my opinion, among the most fortunate because its primary mission and primary goal are clear and vital. LAMPF is triply fortunate. First, it strongly supports the national quest for excellence in science that Pete Miller alluded to awhile ago. Such excellence is absolutely crucial if Los Alamos is to fulfill its national security mission. Second. LAMPF provides unique tech- nical resources in direct support of the Los Alamos primary mission—the Weapons Neutron Research (WNR) facility, the Proton Storage Ring (PSR). and isotope production. And third and probably most impor- tant, LAMPF is an important factor in providing the knowledge base and people base for the nuclear science Louis Rosen enterprise in this country and for the derivative tech- nologies that are so essential to industrial, defense, and medical applications. From a recent in-depth review of nuclear science in the constant between science and the way people live is a United Kingdom (and I urge all of you to have a look at very strong one. this review). I show you an interesting compilation The next 5 years will be golden ones for LAMPF in (Fig. 1). This is an amazing correlation between gross terms of the quality and quantity of research to which we national product per capita and the number of nuclear can look forward. But unless definitive and major steps physicists per capita. In all fairness I should tell you that are now initiated, the ability of LAMPF to continue to if you substitute scientists for nuclear physicists, you fulfill its mission during the 1990s will be in serious would probably get the same correlation.