Experimental Investigations in Particle Physics at Intermediate Energies Preformance Report: December 1991-November 1992

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The major emphasis of this project continues to be on fundamental symmetries and parameters of the Standard Model. A test of a quark model prediction was also done. The projects in the current period have been the following: LSND, a neutrino oscillation experiment at LAMPF; E791, a search for the decays K{sub L}{sup 0} {yields} {mu}e and K{sub L}{sup 0} {yields} ee; E871, tests and preparations for an upgrade proposal; and E888, a search for the H dibaryon. The LSND (Large Scintillator Neutrino Detector) is under construction at this time. Progress in the construction schedule has been accelerated with the … continued below

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32 pages

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Auerbach, L. B.; Highland, V. L.; McFarlane, K. W. & Kettell, S. H. July 12, 1992.

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  • Main Title: Experimental Investigations in Particle Physics at Intermediate Energies Preformance Report: December 1991-November 1992
  • Added Title: Experimental Investigations in Particle Physics at Intermediate Energies Preformance Report for December 1st 1991 to November 30th, 1992
  • Serial Title: Experimental Investigations in Particle Physics at Intermediate Energies Preformance Report
  • Added Title: Experimental investigations in particle physics at intermediate energies. [Physics Dept. , Temple Univ]

Description

The major emphasis of this project continues to be on fundamental symmetries and parameters of the Standard Model. A test of a quark model prediction was also done. The projects in the current period have been the following: LSND, a neutrino oscillation experiment at LAMPF; E791, a search for the decays K{sub L}{sup 0} {yields} {mu}e and K{sub L}{sup 0} {yields} ee; E871, tests and preparations for an upgrade proposal; and E888, a search for the H dibaryon. The LSND (Large Scintillator Neutrino Detector) is under construction at this time. Progress in the construction schedule has been accelerated with the expectation of being ready to accept beam in March 1993. The automated system for testing photomultiplier tubes is in full production, and should be able to certify a fun complement of tubes for installation by October 1992. Results of an earlier LAMPF experiment, E764, on the interaction of muon neutrinos with carbon nuclei have been submitted for publication. A thorough 'blind' analysis of the E791 data set has just been brought to completion. Final results for the upper limits (90% C.L.) on the branching ratios for the decays K{sub L}{sup 0} {yields} {mu}e and K{sub L}{sup 0} {yields} ee are 3.3 {times} 10{sup {minus}11} and 4.1 {times} 10{sup {minus}11}, respectively. The final result for the branching ratio for K{sub L}{sup 0} {yields} {mu}{mu} from all the data (720 events) is (7.0 {plus minus} 0.4 {plus minus} 0.2) {times} 10{sup {minus}9}. The potential of the E791 detector for rare K decays has reached its limit. Before disassembly it was used to mount a search (E888) for a possible long-lived six-quark state, the H. At the same time studies have been made of an upgraded version of the experiment (E871) that will make use of a portion of the existing apparatus.

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  • July 12, 1992

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Auerbach, L. B.; Highland, V. L.; McFarlane, K. W. & Kettell, S. H. Experimental Investigations in Particle Physics at Intermediate Energies Preformance Report: December 1991-November 1992, report, July 12, 1992; United States. (https://digital.library.unt.edu/ark:/67531/metadc1198890/: accessed January 22, 2025), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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