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31	Electroproduction de méson rho0 à virtualité intermédiaire à Jlab avec le détecteur CLAS Hadjidakis, Cynthia 17 December 2002 (has links) (PDF) Ce travail présente l'analyse de l'électroproduction exclusive de mésons rho0 sur le nucléon pour des valeurs du moment transféré au carré Q2 intermédiaires (1.5 [PHYS:NUCL] Physics/Nuclear Theory [PHYS:NEXP] Physics/Nuclear Experiment structure du nucléon sonde électromagnétique méson vecteur rho exclusivité Distributions de Partons Généralisées formalisme de Regge Dominance des mésons vecteurs laboratoire Jlab Hall B détecteur CLAS
32	First Time Measurements of Polarization Observables for the Charged Cascade Hyperon in Photoproduction Bono, Jason S 06 June 2014 (has links) The parity violating weak decay of hyperons offers a valuable means of measuring their polarization, providing insight into the production of strange quarks and the matter they compose. Jefferson Lab’s CLAS collaboration has utilized this property of hyperons, publishing the most precise polarization measurements for the Λ and Σ in both photoproduction and electroproduction to date. In contrast, cascades, which contain two strange quarks, can only be produced through indirect processes and as a result, exhibit low cross sections thus remaining experimentally elusive. At present, there are two aspects in cascade physics where progress has been minimal: characterizing their production mechanism, which lacks theoretical and experimental developments, and observation of the numerous excited cascade resonances that are required to exist by flavor SU(3)F symmetry. However, CLAS data were collected in 2008 with a luminosity of 68 pb−1 using a circularly polarized photon beam with energies up to 5.45 GeV, incident on a liquid hydrogen target. This dataset is, at present, the world’s largest for meson photoproduction in its energy range and provides a unique opportunity to study cascade physics with polarization measurements. The current analysis explores hyperon production through the γp → K+K+Ξ− reaction by providing the first ever determination of spin observables P, Cx and Cz for the cascade. Three of our primary goals are to test the only cascade photoproduction model in existence, examine the underlying processes that give rise to hyperon polarization, and to stimulate future theoretical developments while providing constraints for their parameters. Our research is part of a broader program to understand the production of strange quarks and hadrons with strangeness. The remainder of this document discusses the motivation behind such research, the method of data collection, details of their analysis, and the significance of our results. Physics Weak Nuclear Polarization Hyperon Particle Baryon Meson Strange Quark Kaon Photoproduction Jlab Jefferson Lab Photon Lambda Production Gamma K P Xi Cascade Jason Bono Experimental Accelerator g12 CLAS Jason Bono Jason S. Bono Nuclear Physics Particle Physics Hyperon Polarization Weak Decay Cascade Polarization Xi Polarization Induced Transfered Cx Cz Induced Polarization Transfered Polarization FIU Jlab Jefferson Lab Hall b
33	Faculty Senate Minutes December 4, 2017 University of Arizona Faculty Senate 06 February 2018 (has links) This item contains the agenda, minutes, and attachments for the Faculty Senate meeting on this date. There may be additional materials from the meeting available at the Faculty Center. Arizona Faculties Council (AFC) Dean of the College of Education Operation and Financial Review (OFR) Faculty Breakfast UA's Capital Development Plan Veterinary Medicine core facility Arizona Health Sciences Building 201 Intercollegiate Athletics projects Global Studies Joseph Dupris IngriQue Salt Indigenous Peoples Day Undergraduate Minor in Sports Nutrition Information Access budget Library Services Platform UA's Open Access policy strategic planning process Vice Dean of Eller College of Management Lisa Ordonez Associate Dean of College of Science Elliott Cheu

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