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Author : Gene Elvin McClellan
Publisher :
ISBN 13 :
Total Pages : 272 pages
Book Rating : 4.E/5 ( download)
Download or read book Photoproduction of Neutral Rho Mesons with Linearly Polarized Photons written by Gene Elvin McClellan and published by . This book was released on 1971 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download Photoproduction of [rho]0 Mesons with Linearly Polarized Photons PDF Online Free](https://books.google.com/books/content/images/frontcover/mGvJNwAACAAJ?fife=w200-h370)
Author : Robert Lee Loveless
Publisher :
ISBN 13 :
Total Pages : 106 pages
Book Rating : 4.:/5 (446 download)
Download or read book Photoproduction of [rho]0 Mesons with Linearly Polarized Photons written by Robert Lee Loveless and published by . This book was released on 1968 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download P[sup 0] Meson Photoproduction Using Linearly Polarized Photons with the CLAS Detector PDF Online Free](https://books.google.com/books/content/images/frontcover/G0oTDAEACAAJ?fife=w200-h370)
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.
Author : Bernard Sandler
Publisher :
ISBN 13 :
Total Pages : 300 pages
Book Rating : 4.E/5 ( download)
Download or read book Photoproduction of Phi Mesons with Linearly Polarized Photons written by Bernard Sandler and published by . This book was released on 1971 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Frederick Cooper
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (769 download)
Download or read book Photoproduction of Mesons with Linearly Polarized Photons written by Frederick Cooper and published by . This book was released on 1968 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of Photoproduction of Vector Mesons on Deuterium by 5. 5 GeV Linearly Polarized Photons written by and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The experimental results of a deuterium bubble chamber photoproduction study of half a million pictures at 5.5 GeV are presented. This experiment has been performed using a monoenergetic and linearly polarized photon beam facility at SLAC. At 5.5 GeV the beam polarization is greater than 90%, and the average FWHM of the beam energy spectrum is 0.6 GeV. The reaction ..gamma..d ..-->.. ..pi ... pi..−d has been studied in detail. A clear sample of ..gamma..d ..-->.. rho°d channel was obtained and from the rho° decay distribution in terms of an extended density matrix which includes correlation with the beam polarization, nine independent density matrix parameters were determined. The study of rho° production and decay in the reaction channel ..gamma..d ..-->.. rho°d was found to proceed almost completely through natural parity exchanges; the contribution from unnatural parity exchanges being only (5.3 +- 4.5)% for momentum transfer absolute value t less than or equal to 0.25 GeV2. For the rho° mass and width, the values (766 +- 5) and (139 +- 11) MeV, respectively were obtained. The rho° production cross section in this channel has been determined to be (9.1 +- 0.8) ..mu..b.
Download or read book Photoproduction of Phi Mesons with Linearly Polarized Photons written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We propose to measure the reaction gamma(vec) + p --> p + phi with phi --> K^+K^- in the photon energy range of 1.9
Author : Peter Lowell Walstrom
Publisher :
ISBN 13 :
Total Pages : 252 pages
Book Rating : 4.E/5 ( download)
Download or read book Photoproduction of Neutral Rho Mesons from Hydrogen written by Peter Lowell Walstrom and published by . This book was released on 1972 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Harold Olof Ogren
Publisher :
ISBN 13 :
Total Pages : 378 pages
Book Rating : 4.E/5 ( download)
Download or read book Photoproduction of Neutral Rho Mesons written by Harold Olof Ogren and published by . This book was released on 1970 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Julian Salamanca
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783843351393
Total Pages : 144 pages
Book Rating : 4.3/5 (513 download)
Download or read book Coherent Photoproduction of ¿-Mesons Off Protons at Threshold Energies written by Julian Salamanca and published by LAP Lambert Academic Publishing. This book was released on 2010-09 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Observables from vector meson photoproduction by linearly-polarized photons can be expressed in term of bilinear combinations of helicity amplitudes parameterized by the Spin Density Matrix Elements (SDMEs). These SDMEs give straightforward relations for understanding the nature of the parity exchange at threshold energies, as well as for extracting signatures of the Okubo-Zweig-Iizuka violation. Measurement of SDMEs for p p in the photon energy range of 1.7 to 1.9 GeV(momentum transfer squared t range of 1.2 to 0.25 GeV2 ) and 1.9 to 2.1 GeV (t range of 1.4 to 0.25 GeV2 ) from the g8b experimental data collected in the summer of 2005 in the Hall B of Jefferson Lab are reported herein.
Author :
Publisher :
ISBN 13 :
Total Pages : 47 pages
Book Rating : 4.:/5 (16 download)
Download or read book Polarization Observables From The Photoproduction Of Omega-Mesons Using Linearly Polarized Photons written by and published by . This book was released on 2014 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report on the extraction of Polarization Observables Spin Density Matrix Elements (SDMEs), and Beam Asymmetry Sigma for omega meson photoproduction using a beam of linearly polarized photons in the photon energy region of Egamma = 1.3 to 1.7 GeV, by means of the angular distributions of the daughter pions from omega decay. These preliminary results are from the g8b dataset, which were collected with the CLAS detector in Hall B of Jefferson Lab.
Author :
Publisher :
ISBN 13 :
Total Pages : 151 pages
Book Rating : 4.:/5 (16 download)
Download or read book ?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 151 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 $ ec{γ}$ → ?0p → ?+?-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 ?0 as a function of its polar angle in the ($ ec{γ}$p) c.m. system enables the measurement of the photon asymmetry parameter, ?. This has been measured for ?c.m. ≤ 65°, the results of which are compared with the prediction of the quark model of Zhao for the ? vector meson. It has been found that the tensor coupling for the ?0 is quite different than that of the ?. 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 ?0 and provide evidence relating to the existence of the missing resonances.
Download or read book Phi-Meson Photoproduction with Linearly Polarized Photons at Threshold Energies written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The observables provided by linearly-polarized photons are of interest in delineating the contributions of the various hadronic processes giving rise to vector meson photoproduction. In particular, we describe how phi-meson production affords an incisive tool for exploring the nature of the parity exchange at threshold energies, the strangeness content of proton, as well as extracting signatures for the violation of Okubo-Zweig-Iizuka observation (OZI rule). Our goal is to study the gamma-vector p-->phip reaction, with phi-->K+K-, in the photon energy range of 1.7 to 2.1 GeV by using the Coherent Linear Bremsstrahlung Facility in Hall B of Jefferson Laboratory, Newport News, VA. The data were collected during the g8b run in the summer of 2005.
Author :
Publisher :
ISBN 13 :
Total Pages : 612 pages
Book Rating : 4.E/5 ( download)
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book PHOTOPRODUCTION OF? MESONS IN A HYDROGEN BUBBLE CHAMBER BY 3 AND 5 GeV LINEARLY POLARIZED PHOTONS written by and published by . This book was released on 1971 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1038 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1972 with total page 1038 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author :
Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (946 download)
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.
