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Vector Meson And Associated Strangeness Production Using A Linearly Polarized Photon Beam At Jefferson Lab
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Book Synopsis Vector Meson and Associated Strangeness Production Using a Linearly Polarized Photon Beam at Jefferson Lab by :
Download or read book Vector Meson and Associated Strangeness Production Using a Linearly Polarized Photon Beam at Jefferson Lab written by and published by . This book was released on 2004 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The set of experiments forming the g8a run took place in the summer of 2001 in Hall B of Jefferson Lab. The g8a run was the commissioning experiment for the linearly-polarized photon beam at CLAS. The aim of these experiments is to improve the understanding of the underlying symmetry of the quark degrees of freedom in the nucleon, the nature of the parity exchange between the incident photon and the target nucleon, and the mechanism of associated strangeness production in electromagnetic reactions. A beam of tagged and collimated linearly polarized photons (energy range 1.8-2.2 GeV) in conjunction with the large solid angle coverage of CLAS make possible the extraction of the differential cross-sections and polarization observables for the photoproduction of vector mesons and kaons. The reaction channels are under investigation to search for possibly missing nucleon resonances. An overview of the experiment and preliminary results on the measurement of the photon asymmetries of the aforementioned reactions will be presented in this paper.
Book Synopsis P[sup 0] Meson Photoproduction Using Linearly Polarized Photons with the CLAS Detector by :
Download or read book P[sup 0] Meson Photoproduction Using Linearly Polarized Photons with the CLAS Detector written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The work presented in this thesis describes the first experimental measurement of the photon asymmetry of the exclusive [rvec [gamma]] [yields] [rho][sup 0]p [yields] [pi][sup +][pi][sup -]p reaction. The data were gathered during the summer of 2001 as a proof of principle study using a polarized beam of photons with the CLAS detector in Hall B of Jefferson Lab for the first time. The aim of the g8a set of experiments is to improve the understanding of the underlying symmetry of the quark degrees of freedom in the nucleon, the nature of the parity exchange between the incident photon and the target nucleon, the mechanism of associated strangeness production in electromagnetic reactions, and to search for evidence for the existence of the so called missing resonances. A beam of tagged and collimated linearly polarized photons (energy range 1.8-2.2 GeV) in conjunction with the large solid angle coverage of CLAS make possible the extraction of polarization observables for the photoproduction of vector mesons. For example, the azimuthal distribution of the [rho][sup 0] as a function of its polar angle in the ([rvec [gamma]], p) c.m. system enables the measurement of the photon asymmetry parameter, [Sigma]. This has been measured for [theta][sub c.m.] [le] 65[sup o], the results of which are compared with the prediction of the quark model of Zhao for the [omega] vector meson. It has been found that the tensor coupling for the [rho][sup 0] is quite different than that of the [omega]. The experimental technique of using a beam of linear polarized photons with the CLAS detector has been shown to be viable. By the end of the second phase of these experiments they expect to have a high quality data set which will allow the measurement of the spin density matrix elements for the [rho][sup 0] and provide evidence relating to the existence of the missing resonances.
Book Synopsis Vector Meson Production and Linearly Polarised Photons at Jefferson Lab by :
Download or read book Vector Meson Production and Linearly Polarised Photons at Jefferson Lab written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A Coherent Bremsstrahlung facility for the production of tagged, linearly polarised photons has recently been installed in Hall B at Jefferson Lab. The first production running with this facility will be in June/July 2001 when the g8 programme of experiments on vector meson production will take data. We will measure the decay products from the vector meson resulting from the reaction in the energy range of 1.1
Download or read book G8b Experiment at JLab written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The experiments using polarized photos, at threshold energies, have been taken as relevant experiments because the physics behind them is expected to explain a bunch of problems into the hadronic physics. The nature of parity exchange at threshold energies, strangeness content of proton, violation of Okubo-Zweig-Iizuka observation (OZI rule), are examples of them. Photoproduction of vector mesons by using polarized photons gives a very important way to study those issues. Our goal will be measure the $\vec {\gamma} p \rightarrow \phi p $ reaction, with $\phi \rightarrow K^{+}K^{-} $, in the photon energy range of 1.7GeV to 2.1 GeV by using a Coherent Linear Polarized Photon Beam in Hall-B at Thomas Jefferson Laboratory (Newport News, VA). The experiment where data were taken was called "g8b."
Book Synopsis The G13 Experiment at Jefferson Lab by :
Download or read book The G13 Experiment at Jefferson Lab written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Strangeness has been shown to be important for the understanding of the so-called missing resonances. Due to the scarce experimental data in strangeness photoproduction on the neutron, phenomenological models such as coupled-channels analyses resort to certain approximations that do not allow getting either accuracy or agreement between different analyses when extracting resonance parameters. Thus, in order to obtain high-quality data on the neutron channels, a new experiment (designated g13), based on a liquid deuterium target and a polarized photon beam (both circular and linear polarization) covering from threshold to 2.3 GeV has been done at the Thomas Jefferson National Accelerator Facility. In this paper, a brief description of the g13 experiment is given.
Book Synopsis Proceedings of the International Symposium, Electromagnetic Interactions in Nuclear and Hadron Physics by : Mamoru Fujiwara
Download or read book Proceedings of the International Symposium, Electromagnetic Interactions in Nuclear and Hadron Physics written by Mamoru Fujiwara and published by World Scientific. This book was released on 2002 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the following topics: (1) meson and hadron production by real and virtual photon interaction with nucleons and nuclei; (2) astrophysical studies via photoreactions and hadron reactions; (3) new technologies for the electromagnetic probes and detector development; (4) nuclear structure studies with electromagnetic probes; (5) fundamental symmetries with electromagnetic probes and related problems.The proceedings have been selected for coverage in: ? Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings)
Book Synopsis Gdh 2004 - Proceedings Of The Third International Symposium On The Gerasimov–drell–hearn Sum Rule And Its Extensions by : Sebastian Kuhn
Download or read book Gdh 2004 - Proceedings Of The Third International Symposium On The Gerasimov–drell–hearn Sum Rule And Its Extensions written by Sebastian Kuhn and published by World Scientific. This book was released on 2005-02-21 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents an overview of the many new and exciting results, both theoretical and experimental, in the area of spin structure functions and sum rules at low to moderate photon virtuality Q2. It includes contributions from many leading scientists in the field worldwide.The volume covers the following topics:• recent results on the Gerasimov-Drell-Hearn (GDH) sum rule with real photons and its extensions to virtual photons• inclusive spin structure functions at low to moderate Q2 and their moments• exclusive measurements of nucleon spin structure in the resonance region• spin polarizabilities and Compton scattering• chiral perturbation theory and other low-energy limits of QCD• lattice QCD, duality, and phenomological models• nuclear effects and the GDH sum rule in nuclei• experimental techniques (polarized targets and beams)• future plans and projects
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1974 with total page 1756 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Strange Quarks In Hadrons, Nuclei And Nuclear Matter - Proceedings Of The International Workshop by : Kenneth H Hicks
Download or read book Strange Quarks In Hadrons, Nuclei And Nuclear Matter - Proceedings Of The International Workshop written by Kenneth H Hicks and published by World Scientific. This book was released on 2001-02-28 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume brings together the contributions of experts from different fields within the nuclear physics community. Topics such as rare kaon decays, astrophysics, relativistic heavy ion collisions, and few-GeV electromagnetic probes are covered. The strange quark plays a vital role in understanding such diverse phenomena as CP violation (article by Lincoln Wolfenstein), the “spin crisis” (article by Brad Filipone), and supernova explosions (article by Chris Fryer). Additional topics of interest are parity violation experiments, strangeness content of the proton, and enhanced strangeness production at CERN and RHIC. This unique blend of recent results, with a focus on the role of the strange quark, shows the prominence of strangeness in nuclear physics over the past 50 years.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1972-04 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics Briefs written by and published by . This book was released on 1994 with total page 1248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis VII Latin American Symposium on Nuclear Physics and Applications by : Ricardo Alarcon
Download or read book VII Latin American Symposium on Nuclear Physics and Applications written by Ricardo Alarcon and published by American Inst. of Physics. This book was released on 2007-11-09 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings aim to show the vitality and significance of nuclear science. The focus is the promotion of Nuclear Physics and its applications among Latin American laboratories and the international community. This Volume covers six main topics: Applications of Nuclear Physics, QCD in Nuclear Physics, Fundamental Symmetries and Neutrinos, Nuclear Structure and Reactions, Nuclear and Particle Astrophysics, and Facilities and Instrumentation.
Book Synopsis ERDA Energy Research Abstracts by : United States. Energy Research and Development Administration
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Energy Research and Development Administration. Technical Information Center Publisher : ISBN 13 : Total Pages :1118 pages Book Rating :4.3/5 (129 download)
Book Synopsis ERDA Energy Research Abstracts by : United States. Energy Research and Development Administration. Technical Information Center
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1976 with total page 1118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindeks written by and published by . This book was released on 1988 with total page 960 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-06 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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