High Energy Polarized Proton Beams

High Energy Polarized Proton Beams
Author :
Publisher : Springer
Total Pages : 186
Release :
ISBN-10 : 9780387347547
ISBN-13 : 0387347542
Rating : 4/5 (47 Downloads)

Synopsis High Energy Polarized Proton Beams by : Georg Heinz Hoffstaetter

This book examines the acceleration and storage of polarized proton beams in cyclic accelerators. Basic equations of spin motion are reviewed, the invariant spin field is introduced, and an adiabatic invariant of spin motion is derived. The text presents numerical methods for computing the invariant spin field, and displays the results in numerous illustrations. This book offers a more lucid view of spin dynamics at high energy than has hitherto been available.

RHIC Spin Program. Revision 07

RHIC Spin Program. Revision 07
Author :
Publisher :
Total Pages : 19
Release :
ISBN-10 : OCLC:68432181
ISBN-13 :
Rating : 4/5 (81 Downloads)

Synopsis RHIC Spin Program. Revision 07 by :

Colliding beams of high energy polarized protons at RHIC is an excellent way to probe the polarization of gluons, {anti u} and {anti d} quarks in a polarized proton. RHIC is the Relativistic Heavy Ion Collider being built now at Brookhaven in the ISABELLE tunnel. It is designed to collide gold ions on gold ions at 100 GeV/ nucleon. Its goal is to discover the quark-gluon plasma, and the first collisions are expected in March, 1999. RHIC will also make an ideal polarized proton collider with high luminosity and 250 GeV x 250 GeV collisions. The RHIC spin physics program is: (1) Use well-understood perturbative QCD probes to study non-perturbative confining dynamics in QCD. The author will measure gluon and sea quark polarization in a polarized proton, and polarization of quarks in a transversely polarized proton. (2) Look for additional surprises using the first high energy polarized proton colliders. The author will look for the expected maximal parity violation in W and Z boson production, search for parity violation in other processes, and test parton models with spin. This lecture is organized around a few of the key ideas: Siberian Snakes -- What are they? High energy proton-proton collisions are scatters of quarks and leptons. At high x, a polarized proton beam is a beam of polarized u quarks. Quark and gluon collisions are very sensitive to spin. The author discusses two reactions: how direct photon production measures gluon polarization, and how W− boson production measures u and {anti d} quark polarization.

Physics With A High Luminosity Polarized Electron Ion Collider - Proceedings Of The Workshop On High Energy Nuclear Physics (Epic 99)

Physics With A High Luminosity Polarized Electron Ion Collider - Proceedings Of The Workshop On High Energy Nuclear Physics (Epic 99)
Author :
Publisher : World Scientific
Total Pages : 410
Release :
ISBN-10 : 9789814543422
ISBN-13 : 981454342X
Rating : 4/5 (22 Downloads)

Synopsis Physics With A High Luminosity Polarized Electron Ion Collider - Proceedings Of The Workshop On High Energy Nuclear Physics (Epic 99) by : Leslie C Bland

This volume contains the proceedings of the Workshop on Physics with an Electron-Polarized Ion Collider (EPIC-99), jointly sponsored by the Indiana University Cyclotron Facility and Nuclear Theory Center, and the Institute for Nuclear Theory, University of Washington. It was held in Bloomington, Indiana, April 8-11, 1999. The purpose was to discuss important new physics phenomena which could be investigated with a high-luminosity asymmetric collider consisting of a beam of polarized electrons (with energy roughly 5 GeV), and a beam of polarized protons or other light ions of approximately 40 GeV energy. The Workshop brought together experts in the field who highlighted the unique potential for such a facility, and compared the prospects and challenges for this collider with present and proposed facilities around the world.The proceedings of this Workshop summarize our currently available knowledge on the physics potential for a polarized asymmetric collider. It provides a unique collection of information on the opportunities which such a facility would provide.

Polarized Protons at High Energies

Polarized Protons at High Energies
Author :
Publisher :
Total Pages : 294
Release :
ISBN-10 : PSU:000046056115
ISBN-13 :
Rating : 4/5 (15 Downloads)

Synopsis Polarized Protons at High Energies by : Albert De Roeck

ACCELERATING POLARIZED PROTONS TO HIGH ENERGY.

ACCELERATING POLARIZED PROTONS TO HIGH ENERGY.
Author :
Publisher :
Total Pages : 10
Release :
ISBN-10 : OCLC:316300330
ISBN-13 :
Rating : 4/5 (30 Downloads)

Synopsis ACCELERATING POLARIZED PROTONS TO HIGH ENERGY. by : J. M. BRENNAN

The Relativistic Heavy Ion Collider (RHIC) is designed to provide collisions of high energy polarized protons for the quest of understanding the proton spin structure. Polarized proton collisions at a beam energy of 100 GeV have been achieved in RHIC since 2001. Recently, polarized proton beam was accelerated to 250 GeV in RHIC for the first time. Unlike accelerating unpolarized protons, the challenge for achieving high energy polarized protons is to fight the various mechanisms in an accelerator that can lead to partial or total polarization loss due to the interaction of the spin vector with the magnetic fields. We report on the progress of the RHIC polarized proton program. We also present the strategies of how to preserve the polarization through the entire acceleration chain, i.e. a 200 MeV linear accelerator, the Booster, the AGS and RHIC.

Spin 96 - Proceedings Of The 12th International Symposium On High-energy Spin Physics

Spin 96 - Proceedings Of The 12th International Symposium On High-energy Spin Physics
Author :
Publisher : World Scientific
Total Pages : 906
Release :
ISBN-10 : 9789814546430
ISBN-13 : 9814546437
Rating : 4/5 (30 Downloads)

Synopsis Spin 96 - Proceedings Of The 12th International Symposium On High-energy Spin Physics by : J E J Oberski

Experiments using highly polarized intense beams and targets, and theoretical studies of spin and polarization phenomena, are now providing us with numerous additional details of the electroweak and strong interactions and the structure of matter. The spin structure of the nucleon has been measured over wide ranges of kinematic variables, and the cross sections have been calculated to several orders in perturbative field theory. At present, the influence of the higher twist contributions, the gluon spin, and the quark orbital angular momentum are under scrutiny. Quantum chromodynamics (QCD) captures a lot of our experimental knowledge of hard polarized scattering processes. Can our understanding of such processes within QCD be further improved?Hyperons produced in high energy reactions show how puzzling strong interactions between hadrons still are. Spin observables in experiments at intermediate energy are used to test parity and charge symmetries. Will they also reveal, at low energy, a violation of time reversal symmetry? We are on the verge of using parity violation measurements at intermediate electron scattering energies to determine the amount of strange quark contributions to the neutral weak form factor of the nucleon. The polarization of the sea quarks is expected to be measured soon in W± decays produced in high energy polarized proton interactions. Will the jets in polarized Z⁰ decays show a definite handedness? These and many other topics are discussed in these proceedings.

RHIC Spin Program

RHIC Spin Program
Author :
Publisher :
Total Pages : 17
Release :
ISBN-10 : OCLC:68370771
ISBN-13 :
Rating : 4/5 (71 Downloads)

Synopsis RHIC Spin Program by :

Colliding beams of high energy polarized protons at RHIC is an excellent way to probe the polarization of gluons, u and d quarks in a polarized proton. RHIC is the Relativistic Heavy Ion Collider being built now at Brookhaven in the ISABELLE tunnel. It is designed to collide gold ions on gold ions at 100 GeV/nucleon. Its goal is to discover the quark-gluon plasma, and the first collisions are expected in March, 1999. RHIC will also make an ideal polarized proton collider with high luminosity and 250 GeV x 250 GeV collisions. The RHIC spin physics program is: (1) Use well-understood perturbative QCD probes to study non-perturbative confining dynamics in QCD. We will measure - gluon and sea quark polarization in a polarized proton, polarization of quarks in a transversely polarized proton. (2) Look for additional surprises using the first high energy polarized proton collider. We will - look for the expected maximal parity violation in W and Z boson production, - search for parity violation in other processes, - test parton models with spin. This lecture is organized around a few of the key ideas: Siberian Snakes--What are they? High energy proton-proton collisions are scatters of quarks and leptons, at high x, a polarized proton beam is a beam of polarized u quarks, quark and gluon collisions are very sensitive to spin. We will discuss two reactions: how direct photon production measures gluon polarization, and how W boson production measures u and d quark polarization.

Polarized Sources, Targets And Polarimetry - Proceedings Of The 13th International Workshop

Polarized Sources, Targets And Polarimetry - Proceedings Of The 13th International Workshop
Author :
Publisher : World Scientific
Total Pages : 350
Release :
ISBN-10 : 9789814462747
ISBN-13 : 9814462748
Rating : 4/5 (47 Downloads)

Synopsis Polarized Sources, Targets And Polarimetry - Proceedings Of The 13th International Workshop by : Marco Contalbrigo

This book collects the most recent experimental results, new ideas and prototypes in the field of nuclear gaseous and solid polarized targets and polarimetry. It contains the contribution of the biennial meeting on the topics of Polarized Sources, Targets and Polarimetry. Therefore includes the most recent developments and performances in the field and new proposals. The contributing authors are the experts of the field.The topics covered include: Polarized Electron Sources, Polarized Proton and Deuterium Sources, Polarized Internal Targets, Polarized 3He Ion Sources and Targets, Polarimetry (e, p, d) at Low and High Energy, Polarized antiprotons, Polarized Solid Targets.br>