Download or read book Spin Observables in eta Meson Photoproduction on the Proton written by Ross Tucker and published by . This book was released on 2016 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of experiments using a polarized beam incident on a polarized frozen spin target (FROST) was conducted at Jefferson Lab in 2010. Results presented here were takenduring the second running period with the FROST target using the CEBAF Large AcceptanceSpectrometer (CLAS) detector at Jefferson Lab, which used transversely-polarizedprotons in a butanol target and a circularly-polarized incident tagged photon beam withenergies between 0.62 and 2.93 GeV. Data are presented for the F and T polarization observablesfor [eta] meson photoproduction on the proton from W = 1.55 GeV to 1.80 GeV.The data presented here will improve the world database and refine theoretical approachesof nucleon structure.
Download or read book j63 meson Eta meson Photoproduction of Protons and Deuterons written by Christine Deutsch-Sauermann and published by . This book was released on 1997 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ETA 547 and ETA 958 Meson Photoproduction on the Proton written by Michael Dugger and published by . This book was released on 2001 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Eta meson Photoproduction Off Protons and Deuterons written by C. Deutsch-Sauerman and published by . This book was released on 1997 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book meson Eta meson Photoproduction of Protons and Deuterons written by Christine Deutsch-Sauermann and published by . This book was released on 1997 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Photoproduction Of Eta And Eta prime Mesons From The Proton written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The excitation spectrum of the proton is comprised of many broad overlapping resonances, making investigations of these resonances very challenging. Two excellent tools in helping deconvolve the spectrum are eta and eta-prime meson photoproduction from the proton. Since the beginning of this new millennium, much progress has been made in measuring eta and eta-prime meson photoproduction from the proton. These new measurements are largely in the form of differential cross sections that now cover the first and second resonance regions. In addition to differential cross section data, there have been a comparatively smaller number of beam asymmetry measurements for eta photoproduction. However, these beam asymmetries cover the energy range up to only about E_gamma = 1.5 GeV. In this talk, I will present preliminary Jefferson Lab CLAS data on beam asymmetry for both the eta and eta-prime. I will also discuss how the new measurements will be useful in understanding the structure and exci.
Download or read book Eta 547 and Eta 958 Meson Photoproduction on the Proton written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Photoproduction of[eta] and[eta][prime] mesons has been studied at the Continuous Electron Beam Accelerator Facility (CEBAF) Large Acceptance Spectrometer (CLAS) using a tagged photon beam incident on a hydrogen target with photon energies from the respective production thresholds up to 2.4 GeV. The photoproduced mesons were identified via missing mass reconstruction using recoil proton momentum and time of flight information. Data were obtained in a range of[radical]s from threshold to 2.2 GeV for each meson. In this study, differential cross-section measurements for the[gamma]p[yields] p[eta] and[gamma]p[yields] p[eta][prime] reactions are presented, and the results compared to recent data. An isobar analysis of the differential cross-sections is performed. The predicted differential cross-sections from the isobar analysis are used to predict behavior in unmeasured regions of phase space, and to infer total cross sections. For the[gamma]p[yields] p[eta] reaction, a value of the S[sub 11](1535) proton helicity amplitude also was extracted and compared to recent analyses. The data presented greatly extends the energy and angle coverage for differential cross-sections of[eta] photoproduction, and significantly improves the accuracy with which[eta][prime] cross sections are known.
Download or read book Measurements Of Spin Observables In Pseudoscalar Meson Photo Production Using Polarized Neutrons In Solid HD written by and published by . This book was released on 2014 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Psuedo-scalar meson photo production measurements have been carried out with longitudinally-polarized neutrons using the circularly and linearly polarized photon beams and the CLAS at Thomas Jefferson National Accelerator Facility (Jlab). The experiment aims to obtain a complete set of spin observables on an efficient neutron target. Preliminary E asymmetries for the exclusive reaction, gamma + n(p)--> pi- + p(p), selecting quasi free neutron kinematics are discussed.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976-05 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beam Asymmetry in Eta 547 and Eta 958 Meson Photoproduction from the Proton written by Patrick Collins and published by . This book was released on 2009 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurements of the Spin Observables D subscript NN and P in Inelastic Proton Scattering from 12C and 16O at 200 MeV written by Allena K. Opper and published by . This book was released on 1991 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of Spin Observables in Inclusive Lambda and Koshort Production with a 200 Gev Polarized Proton Beam written by Alessandro Bravar and published by . This book was released on 1994 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Photoproduction of Eta Mesons at 4 and 8 GeV written by David James Ritchie and published by . This book was released on 1972 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spin Observables in Proton neutron Scattering at Intermediate Energy written by and published by . This book was released on 1986 with total page 7 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 1990 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spin Observables in Proton neutron Scattering at Intermediate Energy written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A summary of np elastic scattering spin measurements at intermediate energy is given. Preliminary results from a LAMPF experiment to measure free neutron-proton elastic scattering spin-spin correlation parameters are presented. A longitudinally polarized proton target was used. These measurements are part of a program to determine the neutron-proton amplitudes in a model independent fashion at 500, 650, and 800 MeV. Some new proton-proton total cross sections in pure helicity states (.delta.sigma/sub L/(pp)) near 3 GeV/c are also given. 37 refs., 2 figs.
Download or read book Physics Briefs written by and published by . This book was released on 1994 with total page 1162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
