EBookClubs

Read Books & Download eBooks Full Online

EBookClubs

Read Books & Download eBooks Full Online

Book Complete Atlas of Polarization Observables in Deuteron Photodisintegration Below Pion Threshold

Download or read book Complete Atlas of Polarization Observables in Deuteron Photodisintegration Below Pion Threshold written by K.-M. Schmitt and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the first time, a complete calculation of all 288 polarization observables of deuteron photodisintegration for polarized photons and an oriented deuteron target is presented for energies below +-production threshold. The observables are calculated within a nonrelativistic framework but with inclusion of lowest-order relativistic effects. Explicit meson exchange currents and isobar configurations as manifestation of subnuclear degrees of freedom are included in the calculation. The sensitivity of the various polarization observables with respect to subnuclear degrees of freedom, to electric and magnetic multipole contributions and to a variety of realistic potential models are systematically investigated. Thus this atlas provides the most detailed and systematic survey on polarization observables of this important process. It allows to analyse the different dynamical properties of the np-system as contained in the various observables and, therefore, will be useful for both theoretical studies and for the planning and evaluation of experiments as well. It serves in addition as an important supplement to the recent general review on deuteron photodisintegration by A. Arenhövel and M. Sanzone (Few-Body Systems, Suppl. 3).

Book Polarization Observables in Deuteron Photodisintegration Below 360 MeV

Download or read book Polarization Observables in Deuteron Photodisintegration Below 360 MeV written by and published by . This book was released on 2011 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We performed high precision measurements of induced and transferred recoil proton polarization in d($\vec{{u03B3}}$, $\vec{p}$)n for photon energies of 277--357 MeV and [theta]cm = 20 ° -- 120 °. The measurements were motivated by a longstanding discrepancy between meson-baryon model calculations and data at higher energies. Moreover, at the low energies of this experiment, theory continues to fail to reproduce the data, indicating that either something is missing in the calculations and/or there is a problem with the accuracy of the nucleon-nucleon potential being used.

Book Elastic Proton Deuteron Backward Scattering

Download or read book Elastic Proton Deuteron Backward Scattering written by and published by . This book was released on 1997 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Polarization Phenomena In Physics Applications To Nuclear Reactions

Download or read book Polarization Phenomena In Physics Applications To Nuclear Reactions written by Makoto Tanifuji and published by World Scientific. This book was released on 2018-04-17 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book allows the reader to understand the fundamentals of polarization phenomena in a general spin system, showing the polarizations to be indispensable information source of spin-dependent interactions. Particularly, the book describes polarization phenomena in nuclear scattering and reactions in detail, and explains how they provide information concerning spin-dependent interactions between the related particles. The concepts of polarization observables are explained, explicitly in the scattering of protons, deuterons and 7Li nuclei. In looking at deuteron and 7Li scattering, interactions induced by the virtual excitation of projectiles are examined in detail. Resonance reactions are investigated, focusing attention on the polarization of observables, which suggests that polarization phenomena can be used to determine the spin parity of the resonance. It is noted that in few-nucleon systems, the discrepancy between the values of polarization observables based on theoretical models and the corresponding values obtained through experimental data, is an important problem to be solved in the future. Solving this problem should provide new knowledge concerning the nuclear forces between nucleons.The author has chosen open-access publishing for this book to allow any interested person to study this branch of nuclear physics.

Book Polarization Observables in Deuteron and Electro Disintegration

Download or read book Polarization Observables in Deuteron and Electro Disintegration written by V. Dmitrasinovic and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Recoil Proton Polarization in High Energy Deuteron Photodisintegration with Circularly Polarized Photons

Download or read book Recoil Proton Polarization in High Energy Deuteron Photodisintegration with Circularly Polarized Photons written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We measured the angular dependence of the three recoil-proton polarization components in two-body photodisintegration of the deuteron at a photon energy of 2 GeV. These new data provide a benchmark for calculations based on quantum chromodynamics. Two of the five existing models have made predictions of polarization observables. Both explain the longitudinal polarization transfer satisfactorily. Transverse polarizations are not well described, but suggest isovector dominance.

Book Single and Double Polarization Observables in the Electrodisintegration of the Deuteron from Bates Large Acceptance Spectrometer Toroid

Download or read book Single and Double Polarization Observables in the Electrodisintegration of the Deuteron from Bates Large Acceptance Spectrometer Toroid written by Adam Jon DeGrush and published by . This book was released on 2010 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the underlying mechanisms involved in the interactions between nucleons is one of the fundamental problems in nuclear physics. Over roughly the last 70 years, this question has been approached on many different fronts. We believe that the theory underlying the interaction between nucleons is that between quarks and gluons described by Quantum Chromodynamics; however, a complete solution to the nucleon-nucleon interaction within this framework has yet to emerge. In parallel, the advent of polarization experiments involving both polarized beams and targets has provided new experimental avenues to test our understanding the reaction mechanisms involved in the nucleon-nucleon interaction. One important example is the electrodisintegration of the deuteron ... (e[over-arrow], e'p)n, in particular the measurement of the beam-vector asymmetry, AV, and the tensor asymmetry, AT. Both of these asymmetries are sensitive to the d-wave components of the deuteron and are thus measurements of the effects of the tensor force in the nucleon-nucleon interaction. This work reports on measurements of AV and A T in the electrodisintegration of the deuteron that were performed by the BLAST collaboration at the Bates Linear Accelerator Center involving two data runs during 2004 and 2005. The measurements consisted of cross sections and asymmetries vs. missing momentum for a Q2 range of 0.1(GeV/c) 2

Book Polarization Observables in Low Energy Deuteron Photodisintegration

Download or read book Polarization Observables in Low Energy Deuteron Photodisintegration written by Jacqueline Fougere Glister and published by . This book was released on 2009 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Polarization in Photodisintegration of the Deuteron

Download or read book Polarization in Photodisintegration of the Deuteron written by and published by . This book was released on 2001 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recoil proton polarization was measured in deuteron photodisintegration at theta{sub cm} = 90{sup o} for photon energies up to 2.4 GeV. The induced polarization py is consistent with vanishing above 1 GeV, in surprising disagreement with meson-baryon calculations. From pQCD it is generally expected that hadron helicity is conserved, but, the polarization transfer observables do not vanish. As the data are inconsistent with existing meson baryon model predictions, and with expectations from pQCD, we suggest that nonperturbative quark models will be needed to understand the underlying reaction dynamics.

Book Polarization Phenomena in Physics

Download or read book Polarization Phenomena in Physics written by Makoto Tanifuji and published by World Scientific Publishing Company. This book was released on 2018-04-07 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Studies of Relativistic Effects in the Deuteron proton Collisions

Download or read book Studies of Relativistic Effects in the Deuteron proton Collisions written by Barbara Kłos (fizyka) and published by . This book was released on 2017 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Energy Research Abstracts

Download or read book Energy Research Abstracts written by and published by . This book was released on 1988 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt: