Progress Report Covering the Five Year Period November 1, 1974 to October 31, 1979 and A Proposal for Continued Support of Research in > ELEMENTARY PARTICLE PHYSICS For the Period December 1, 1979 Eo February 28, 1981 to the U.S. Department of Energy 44 from PARTICLE PHYSICS GROUP PHYSICS DEPARTMENT THE FLORIDA STATE UNIVERSITY TALLAHASSEE, FLORIDA 32306 15-month Request: $956,600 Budget on page 100 EXPERIMENTAL PHYSICISTS: Authentication: J.R. Albright, Professor R. N. Diamond, Asst. Prof. H. Fenker, Res. Assoc. J. Goldman, Res. Asst. Prof. S. Hagopian, Staff Physicist V. Hagopian, Professor 904-644-1492 or FTS-946-4287 J.E. Lannutti, Professor THEORETICAL PHYSICISTS: Robert H., Davis, Chairman P.A.M. Dirac, Professor Department of Physics D.W. Duke, Visiting Asst. Prof. 904-644-2867 L. hclpern, Res. Assoc. J.D. Kimel, Assoc. Prof. J.F. Owens, Res. Asst. Prof. P.K. Williams, Assoc. Prof. [Robert M. Johnson, Dean Division of Gia'ciuate Studies and Research^ 904-644-3500 - disclaimer - North** the U"««a States Gowrnnwt « • v * • ,«Kiru.o,htv to' WW, «rJmpUI. or product. or proem Or toTol'itW'w*. o* usefulness ol any 1 . , Ra<e>enc4 her*'n to any W*C’tiC Wat ,1I t.t. MUM '»<'«• manutanurn. or o:Kerw,ie. Son OOCU WEKr IS UNU^Ill^SL commercial product, proem «c’vicc bv ’recommendation or tawr-ng by the United this „« «•«»>“ <» "» W* OF Government or driv ayency themet. ine **v» a u Mce-wrrtv state <r tho» tM Un,tad States Government or any agency tj__________________. Page E. Hardware Development 1. Review of Work Done During 1974-1979 52 2. Proposed Activity for 1980 53 3. Acquisition of a Medium-Sized Computer 54 F. Software Development 1. Review of Work Done in 1974-1979 58 2. Software Projects for 1980 61 V. Particle Theory A. Overall Review 62 B. P.K. Williams Program 65 C. J.D. Kimel’s Program • 67 D. J.F. Owens' Program . 72 E. D.W. Duke's Program 81 VI. Gravitational Theory Program A. Overall Review 84 B. P.A.M. Dirac's Program 84 C. L. Halpern's Program 86 VII. Conferences Held at Florida State University 88 VIII. Scientific Personnel for 1980 94 IX. Support Personnel 96 X. Other Financial Assistance 97 XI. Premises, Facilities, Equipment and Material 97 to be Furnished by the Contractor XII. Budget for Period December 1, 1979 to February 100 28, 1981 Budget Explanatory Notes XIII. Amount Requested • 104 Appendix I - Five Year Publications ? Appendix II - Copie^o^Papers and Reports ;v- Appendix III - HH^^^^Bublications of Scientific Personnel TABLE OF CONTENTS Page I. Project Abstract A. Experimental 1 B. Particle Theory 2 C. Gravitational Theory 2 II. Support: Five Year Summary 3 III. Personnel: Five Year Summary 4 IV. Experimental Program A. Overall Review 7 B. Review of Work Completed During 1974-1979 1. K d Interactions in the BNL 30-inch Bubble 10 Chamber 2. ir+d at 15 GeV/c in the SLAC 82-inch Bubble 11 Chamber 3. it p at 250 and 360 GeV/c in the Fermilab 14 15-ft Bubble Chamber 4. Neutrino Experiments at Fermilab 16 C. Experiments in Progress 1. H* Search at BNL using the MPS; Search for 17 Baryonium 2. ir+p in the 40-inch SLAC Bubble Chamber with 26 the Lead-Glass Wall 3. A Search for Narrow and Broad Resonances Decaying 34 into AA, AAir, KgKS and KgKgir from ir'p Interaction at 300 GeV/c in the Fermilab MPS. 4. An Experiment to Study Photoproduction of Charm 38 in the SHF Exposed to a Polarized Mono-Energetic Backscattered Laser Beam of 20 GeV Photons in the SLAC 40-inch Bubble Chamber with the Hybrid Faci­ lity D. Preparations and Proposals for Future Experiments 1. High Mass States Decaying into $fr~Y and 47 Produced Centrally in 300 GeV/c n"p Interac­ tions Using Fermilab MPS. 2. Search for Baryonium at BNL MPS 49 3. Search for Hyperonium, Exotic States and Charm 50 Decays Using BNL MPS 4. Dilepton Production by Neutrinos at Fermilab 51 I. Project Abstract The research in progress and proposed herein is a study of several of the fundamental forces of nature. The research involves both experimental and theoretical work. A. Experimental Program The period since 1974 has been a time of remarkable progress and change for the experimental group. During this time we have shifted from the use of bare bubble chambers to use of electronic equipment in multiparticle spectrometers KPS) and in hybrid bubble chamber systems. The experiments now probe nb physics instead of ub physics. The older experiments with bare bubble chambers are now completed, and new experiments have obtained data at the Brookhaven MPS and at the SLAC 40-inch hybrid system. During the next contract year we expect to: (1) Continue analysis and obtain results on the BNL experiment. The data will provide new information about E* resonances produced by K p; it will also explore various states produced by pp; (2) Continue measurements, analysis and interpretation of the SLAC data from ir p+miro + X at 16 5eV/c. Gamma rays from the it0 mesons were detected with a lead-glass wall; (3) Start taking data on ir“p-»- 2V + X at 300 3 eV/c using the Fermilab -MPSr beginning in November of 1979. (4) Start taking data at the SLAC hybrid facility (SHF) using photons from the backscattered laser beam. This will be our second experiment with the lead-glass wall. With varying degrees of probability we can predict the physics that will come from these experiments. New cascade resonances may be found and interpreted. We may be able to pin down the elusive four-quark baryonium states that decay into pp. We may learn some new aspect of resonances that decay into multiple neutrals. We may find_evidence for high-mass resonances that decay into KSKS or AA. We may find bare charm or other exciting effects in photoproduced vector mesons. With all these possibilities, something exciting should be obtained during the coming year. 1 B. Particle Theory Program The past five years have been a period of rapid broadening of interests and reorientation for the particle theory group at Florida State thiversity — as it has been for particle theory as a whole. In the fall of 1973, we first proposed the beginning of a research effort in parton physics, breaking with our traditional concentration on low momentum transfer reactions, irir phase shifts, Regge phenomenology, and amplitude analyses. The discovery of the J/W in November 1974,of neutral currents in weak interactions as predicted by the Weinberg- Salam model, and of quantum chromodynamics (QCD) as a pro­ mising candidate for the theory of strong interactions sti­ mulated and hastened our evolution into a research group with an emphasis on QCD. We are interested in the effects of QCD in hadron physics, especially high-pT reactions. We are also interested in QCD effects of higher order in processes basically mediated by electromagnetic or weak interactions, such as deep inelastic scattering or the Drell-Yan process. In the last three years, we have achieved increasing success and recognition for theoretical contributions to parton physics, particularly in hadronic reactions. We believe that we now have the experience and the personnel to make our work in testing and understanding the fundamental interactions of particle physics even more significant in the future. C. Gravitational Theory Program . Since 1974, the gravitational theory program has increased its momentum and hosted three conferences. Two of the confer­ ences were designed to encourage experimental physicists seeking a'variation in the gravitational constant G : the third was a more general international conference in the subject of Current Trends in the Theory of F ields. Curing the past year the cosmological theory, of an expanding universe with varying G has become more definite. In addition, all the experimental data, although measurement uncertainties are large, are now in agreement and consistent with our theore­ tical prediction. , Further development of the theory with varying G will be made during the next year to provide definite equations of motion for problems in which both gravitation and quantum effects play a role. It is hoped ultimately to obtain an underlying field theory of gravitation and electromagnetism. 2 / / II. Support: Five Year Summary This work is currently supported in part by the U-S. Department of Energy Contract No. EY-76-S-05-3509, which is a twelve-month contract with U.S. Department of Energy with a basic support of $350,000, an additional amount of $10,000 for a Junior Investigator support and $6000 carry-over from the previous year for a total of $366,00 and which expires November 30, 1979. The remaining support this year comes from University resources, of which it is estimated that $322,500 will be used for cost sharing. The table given below gives our program budgets for the last five years: Budgets and/or Expenditures Purine Last Five Years (in thousands of dollars) "1975" "1976" ”1977 II "1978 n "1979"* Contract 2/1/75 1/1/76 2/1/77 12/1/77 12/1/78 Period 12/31/75 1/31/77 11/30/77 11/30/78 11/30/79 FSU DOE ‘ PSP - DOS FSU DOE rsu DOS FSU DOE Personnel 121.3 142-.7 . 207.9 .204.3 130.2 167.5 244.6 206.7 252.5 232.0 Expenses' 0 32.1 0 39.7 0 55.9 2.2 71.3 f:o 97.0 Computer Use 157.6 21.8 138.7 30.4 128.3 26.8 124.2 32.5 145.0 36.5 Equipment 0 0 0 .2 0 0.2 2.