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Author : Diana Marwick Seymour Parno
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (144 download)
Download or read book Measurements of the Double-spin Asymmetry A1 on Helium-3 written by Diana Marwick Seymour Parno and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 234 pages
Book Rating : 4.:/5 (957 download)
Download or read book Measurements of the Double-Spin Asymmetry A1 on Helium-3 written by and published by . This book was released on 2011 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: The spin structure of protons and neutrons has been an open question for nearly twenty-five years, after surprising experimental results disproved the simple model in which valence quarks were responsible for nearly 100% of the nucleon spin. Diverse theoretical approaches have been brought to bear on the problem, but a shortage of precise data - especially on neutron spin structure - has prevented a thorough understanding. Experiment E06-014, conducted in Hall A of Jefferson Laboratory in 2009, presented an opportunity to add to the world data set for the neutron in the poorly covered valence-quark region. Jefferson Laboratory's highly polarized electron beam, combined with Hall A's facilities for a high-density, highly polarized 3He target, allowed a high-luminosity double-polarized experiment, while the large acceptance of the BigBite spectrometer gave coverage over a wide kinematic range: 0.15
Author : Donald G. Crabb
Publisher : American Inst. of Physics
ISBN 13 : 9780735406865
Total Pages : 1236 pages
Book Rating : 4.4/5 (68 download)
Download or read book Spin Physics written by Donald G. Crabb and published by American Inst. of Physics. This book was released on 2009-08-25 with total page 1236 pages. Available in PDF, EPUB and Kindle. Book excerpt: The topics covered in the conference ranged from the physics that can be done with polarized beams of particles (protons, electrons, gamma-rays, etc.) to the techniques and instrumentation necessary to achieve this. Topics included: nucleon structure measurements (from where does the spin of the proton and neutron come), the acceleration, storage and polarization of particle beams and the polarized targets and sources necessary for mounting the experiments.
Author : Eric Scott Swanson
Publisher : World Scientific
ISBN 13 : 9812384189
Total Pages : 413 pages
Book Rating : 4.8/5 (123 download)
Download or read book NSTAR 2002 written by Eric Scott Swanson and published by World Scientific. This book was released on 2003 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers recent advances in the physics of nucleon resonances, including new experimental results from laboratories in the USA, Europe, and Asia, and new developments in effective field theories, quark models, and lattice gauge theory.
Author : Wolf-Dieter Nowak
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (722 download)
Download or read book Possible measurements of single and double spin asymmetries with HERA - N_1hn→ written by Wolf-Dieter Nowak and published by . This book was released on 1996 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (833 download)
Download or read book Possible Measurements of Single and Double Spin Asymmetries with HERA - →N written by and published by . This book was released on 1998 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jens-Ole Hansen
Publisher :
ISBN 13 :
Total Pages : 145 pages
Book Rating : 4.:/5 (325 download)
Download or read book A Measurement of Spin-dependent Asymmetries in Quasielastic Scattering of Polarized Electrons from Polarized Helium-3 written by Jens-Ole Hansen and published by . This book was released on 1995 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download Measurement of Longitudinal Double Spin Asymmetries of [pi]+/- Production in P[over-arrow] + P[over-arrow] Collisions at [sqrt]s PDF Online Free](https://books.google.com/books/content/images/frontcover/fGvpZwEACAAJ?fife=w200-h370)
Author : Adam Philip Kocoloski
Publisher :
ISBN 13 :
Total Pages : 105 pages
Book Rating : 4.:/5 (713 download)
Download or read book Measurement of Longitudinal Double Spin Asymmetries of [pi]+/- Production in P[over-arrow] + P[over-arrow] Collisions at [sqrt]s written by Adam Philip Kocoloski and published by . This book was released on 2010 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spin dependent measurements provide incisive tests for modern theories of particle physics. The discovery that the integral of the quark helicity distribution is much too small to account for the spin of the proton is an excellent case in point. It inspired an intense period of theoretical scrutiny and a new generation of experiments to study [Delta]g, the helicity distribution of gluons in the nucleon. In particular, the unique polarized proton collider at RHIC enables a class of asymmetry measurements that are directly sensitive to gluon polarization. The STAR experiment at RHIC measures the double spin asymmetry A[subscript LL] for a variety of final states in collisions of longitudinally polarized protons in order to constrain [Delta]g. Asymmetries for mid-rapidity charged pion production benefit from large cross sections and the excellent tracking and particle identification capabilities of the STAR Time Projection Chamber. This thesis presents the first measurements of charged pion A[subscript LL] at STAR. The measurements are compared to predictions based on perturbative QCD calculations and from this comparison model-dependent constraints are placed on the integral gluon polarization [Delta]G.
Author : L. P. Pitaevskii
Publisher : Elsevier
ISBN 13 : 0444598286
Total Pages : 995 pages
Book Rating : 4.4/5 (445 download)
Download or read book Helium Three written by L. P. Pitaevskii and published by Elsevier. This book was released on 2012-12-02 with total page 995 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introducing the subject of superfluid helium three and polarized liquid helium three, this book is devoted to modern problems in many body physics specific to the quantum fluid helium three. Relationships between properties of helium three and topics in other fields are established including superconductivity, non-linear dynamics, acoustics, and magnetically polarized quantum systems. Among the chapters in this collection one finds valuable reference material and original research not published elsewhere. Advanced research topics are presented in a pedagogical manner, in considerable depth, and with appropriate introductory material sufficiently general to be suitable to the non-specialist.
Author : Nevzat Guler
Publisher :
ISBN 13 :
Total Pages : 704 pages
Book Rating : 4.:/5 (643 download)
Download or read book Spin Structure of the Deuteron written by Nevzat Guler and published by . This book was released on 2009 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Rutherford Laboratory
Publisher :
ISBN 13 :
Total Pages : 738 pages
Book Rating : 4.3/5 (91 download)
Download or read book Work of the Rutherford Laboratory written by Rutherford Laboratory and published by . This book was released on 1974 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download Possible Measurements of Single and Double Spin Asymmetries with HERA-[vector]N PDF Online Free](https://books.google.com/books/content/images/frontcover/-QorHAAACAAJ?fife=w200-h370)
Author : Wolf-Dieter Nowak
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (757 download)
Download or read book Possible Measurements of Single and Double Spin Asymmetries with HERA-[vector]N written by Wolf-Dieter Nowak and published by . This book was released on 1996 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tony M. Liss
Publisher : American Institute of Physics
ISBN 13 :
Total Pages : 790 pages
Book Rating : 4.:/5 (318 download)
Download or read book Intersections of Particle and Nuclear Physics written by Tony M. Liss and published by American Institute of Physics. This book was released on 2006-12-13 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a conference that 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 the nuclei together, to physics of the very early Universe. They include such topics as the detailed behavior of neutrinos and searches for "new physics", that is phenomena that cannot be accounted for by our current theories.
Download or read book The Double Spin Asymmetry in Exclusive Pi+ Electro-production with CLAS. written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The eg1b run was conducted using CLAS at Jefferson Lab in 2000 by the CLAS collab- oration. A 1.6 GeV - 5.6 GeV polarized electron beam and polarized nuclear targets (composed of NH3 and ND3) were used, allowing single and double spin asymmetries to be measured. This analysis deals with the double spin asymmetry A.
Author :
Publisher :
ISBN 13 :
Total Pages : 456 pages
Book Rating : 4.X/5 (4 download)
Download or read book Proceedings of the ... International Symposium on Meson-Nucleon Physics and the Structure of the Nucleon written by and published by . This book was released on 2002 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download Measurement of the Double Spin Asymmetry In[pi][sup -] Electroproduction with CLAS. PDF Online Free](https://books.google.com/books/content/images/frontcover/zyf7jwEACAAJ?fife=w200-h370)
Download or read book Measurement of the Double Spin Asymmetry In[pi][sup -] Electroproduction with CLAS. written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The double spin asymmetry[sigma][sub et]/[sigma][sub 0] has been measured in[pi][sup -] electro-production using a polarized electron beam and a polarized ND[sub 3] target, and using a CEBAF Large Acceptance Spectrometer (CLAS). The electron beam was polarized using a GaAs-cathode and the target was polarized via Dynamic Nuclear Polarization. The beam polarization was around 70% and the target polarization was between 10 and 20 percent. The data at 2.5 GeV beam energy and two different magnetic field settings (2250 A and -1500 A) were collected in Hall B at Jefferson Lab in the Fall of 1998. The e[pi][sup -] channel was selected using the missing mass technique and applying a cut around the proton peak (0.78 GeV[sup 2]
Download or read book Measurement of the Double Spin Asymmetry In? Electroproduction with CLAS. written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The present thesis describes the measurement of the double spin asymmetry in the ep 2!e?n reaction. This represents the only existing measurement for this observable. The reaction is identified detecting the scattered electron and the emitted pion and using the missing mass technique to identify the neutron. The asymmetry is evaluated as a function of the four-momentum transfer Q2, the invariant mass W and the pion center of mass angle?*. These are in fact the variables that determine the transition amplitudes for the process. The W range of this measurement varies from the pion threshold to a maximum value of 1.8 GeV, exploring the full resonance region. The results obtained with this analysis in the evaluation of the spin asymmetry are presented. The outline of the thesis can be summarized as follows. The first chapter describes the physics motivation that are at the basis of this experiment. The second and third chapters illustrate the design of the CLAS detector and the polarized target. The fourth chapter gives a description of the event reconstruction and to the event selection while the analysis procedure is described in chapter five. Chapter six discusses the results of this measurement, including the evaluation of the systematic uncertainty and the comparison with a physics model.
