Download or read book Deeply Virtual and Exclusive Production of the Omega Meson written by S. Morrow and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Exclusive {omega} electroproduction off the proton was measured at the highest possible four-momentum transfer with the (close to) 6 GeV beam now available at CEBAF. Cross sections are presented, together with an analysis of the {omega} spin density matrix elements. Indications are that {pi}{sup 0} exchange in the t-channel (or rather the exchange of the corresponding saturating Regge trajectory) seems to dominate the process {gamma}*p {yields} {omega}p, even for photon virtuality Q{sup 2} as large as 5 GeV{sup 2}. Contributions of the handbag type, related to Generalized Parton Distributions in the nucleon, are therefore difficult to extract from this particular process.

Download or read book Omega meson Production by Virtual Photons written by H. Meyer and published by . This book was released on 1977 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tenth International Symposium on Meson Nucleon Physics and the Structure of the Nucleon written by and published by . This book was released on 2005 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the Fifth International Workshop on Electron Electron Interactions at TeV Energies written by Clemens A. Heusch and published by . This book was released on 2005 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Deeply Virtual Exclusive Reactions with CLAS written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Deeply virtual exclusive reactions offer an unique opportunity to study the structure of the nucleon at the parton level as one has access to Bjorken x{sub B} and momentum transfer to the nucleon t at the same time. Such processes can reveal much more information about the structure of the nucleon than either inclusive electroproduction or elastic form factors alone. Dedicated experiments to study Deeply Virtual Compton Scattering (DVCS) and Deeply Virtual Meson Production (DVMP) have been carried out in Hall B at Jefferson Lab. DVCS helicity-dependent and helicity-independent cross sections and beam spin asymmetries have been measured with CLAS, as well as cross sections and asymmetries for the [pi]{sup }0, [eta], [rho]{sup }0, [rho], [omega] and [phi] for exclusive electroproduction. The data were taken in a wide kinematic range in Q2=1-4.5 GeV2, x{sub B}=0.1-0.5, and {absval t} up to 2 GeV2. We will discuss the interpretation of these data in terms of traditional Regge and Generalized Parton Distributions (GPDs) models. The successful description of the recent CLAS pseudoscalar meson exclusive production data by GPD-based model provides a unique opportunity to access the transversity GPDs. We view the work presented in this report as leading into the program of the Jefferson Lab 12 GeV upgrade. The increased energy and luminosity will allow us to acquire data at much higher Q2 and x{sub B}, and perform Rosenbluth L/T separations of the cross sections.

Download or read book Inclusive Production of the omega 782 Vector Meson in Hadronic Decays of the Z written by Andrew John Beddall and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Deeply Virtual Exclusive Processes and Generalized Parton Distributions written by and published by . This book was released on 2011 with total page 12006 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of the comprehensive program in Deeply Virtual Exclusive Scattering at Jefferson Laboratory is to create transverse spatial images of quarks and gluons as a function of their longitudinal momentum fraction in the proton, the neutron, and in nuclei. These functions are the Generalized Parton Distributions (GPDs) of the target nucleus. Cross section measurements of the Deeply Virtual Compton Scattering (DVCS) reaction ep 2!ep[gamma] in Hall A support the QCD factorization of the scattering amplitude for Q^2 e"2 GeV^2. Quasi-free neutron-DVCS measurements on the Deuteron indicate sensitivity to the quark angular momentum sum rule. Fully exclusive H(e, e'p[gamma]) measurements have been made in a wide kinematic range in CLAS with polarized beam, and with both unpolarized and longitudinally polarized targets. Existing models are qualitatively consistent with the JLab data, but there is a clear need for less constrained models. Deeply virtual vector meson production is studied in CLAS. The 12 GeV upgrade will be essential for for these channels. The [rho] and [omega] channels reactions offer the prospect of flavor sensitivity to the quark GPDs, while the [phi]-production channel is dominated by the gluon distribution.

Download or read book Dynamical Coupled Channel Approach to Omega Meson Production written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The dynamical coupled channel approach of Matsuyama, Sato, and Lee is used to study the $\omega$--meson production induced by pions and photons scattering from the proton. The parameters of the model are fixed in a two-channel (\omega N, \pi N) calculation for the non-resonant and resonant contributions to the $T$ matrix by fitting the available unpolarized differential cross section data. The polarized photon beam asymmetry is predicted and compared to existing data.

Download or read book Omega Meson Production in the Pn D o63 d Omega Reaction at ANKE written by Inti Lehmann and published by . This book was released on 2003 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book In medium Properties of the Omega meson Studied in Photonuclear Reactions Near the Production Threshold written by Michaela Thiel and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book In medium Properties of the meson omega meson Studied in Photonuclear Reactions Near the Production Threshold written by Michaela Thiel and published by . This book was released on 2010 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 10th Conference on the Intersections of Particle and Nuclear Physics written by Marvin L. Marshak and published by American Institute of Physics. This book was released on 2010-01-11 with total page 1010 pages. Available in PDF, EPUB and Kindle. Book excerpt: CIPANP 2009 explores areas of common interest between nuclear physicists, high energy (particle) physicists and astrophysicists. These areas range from studies of the strong interactions that bind nuclei together to physics of the very early Universe and include such topics as neutrinos, hadron physics, spin physics, heavy ion physics, QCD and heavy flavor physics. The Conference papers include descriptions of searches for "new physics", phenomena that cannot be accounted for by current theories.

Download or read book High Energy Physics Index written by and published by . This book was released on 1990 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book VECTOR MESON PRODUCTION AND OMEGA RHO INTERFERENCE PROCEEDINGS OF THE DARESBURY STUDY WEEKEND written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ukrainian journal of physics written by and published by . This book was released on 2003 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book O63 Meson Production in the Pn D o63 d Omega Reaction at ANKE written by Inti Lehmann and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hard Exclusive Reactions at Jlab written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Dedicated experiments to study Deeply Virtual Compton Scattering (DVCS) and Deeply Virtual Meson Production (DVMP) have been carried out at Jefferson Lab. DVCS helicity--dependent and helicity--independent cross sections and beam spin asymmetries have been measured, as well as cross sections and asymmetries for the $\pi0̂$, $\eta$, $\rho0̂$, $\rho+̂$, $\omega$ and $\phi$ for exclusive electroproduction. The data were taken in a wide kinematic range in $Q2̂$=1--4.5 GeV$2̂$, $x_B$=0.1--0.5, and $