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Title: HIGH ENERGY HADRON POLARIMETRY.

Abstract

Proton polarimetry at RHIC uses the interference of electromagnetic (EM) and hadronic scattering amplitudes. The EM spin-flip amplitude for protons is responsible for the proton's anomalous magnetic moment, and is large. This then generates a significant analyzing power for small angle elastic scattering. RHIC polarimetry has reached a 5% uncertainty on the beam polarization, and seem capable of reducing this uncertainty further. Polarized neutron beams ax also interesting for RHIC and for a polarized electron-polarized proton/ion collider in the fume. In this case, deuterons, for example, have a very small anomalous magnetic moment, making the approach used for protons impractical. Although it might be possible to use quasielastic scattering from the protons in the deuteron to monitor the polarization. 3-He beams can provide polarized neutrons, and do have a large anomalous magnetic moment, making a similar approach to proton polarimetry possible.

Authors:
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
922242
Report Number(s):
BNL-79729-2007-CP
R&D Project: 08840; KB-01-01-022; TRN: US0801027
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Conference
Resource Relation:
Conference: X11TH INTERNATIONAL WORKSHOP ON POLARIZED SOURCES, TARGETS AND POLARIMETRY (PSTP07); BROOKHAVEN NATIONAL LABORATORY, NY ; 20070910 through 20070914
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; AMPLITUDES; DEUTERONS; ELASTIC SCATTERING; HADRONS; MAGNETIC MOMENTS; MONITORS; NEUTRON BEAMS; NEUTRONS; POLARIMETRY; POLARIZATION; POLARIZATION-ASYMMETRY RATIO; PROTONS; SCATTERING; SCATTERING AMPLITUDES; SPIN FLIP; TARGETS

Citation Formats

BUNCE,G. HIGH ENERGY HADRON POLARIMETRY.. United States: N. p., 2007. Web.
BUNCE,G. HIGH ENERGY HADRON POLARIMETRY.. United States.
BUNCE,G. Mon . "HIGH ENERGY HADRON POLARIMETRY.". United States. https://www.osti.gov/servlets/purl/922242.
@article{osti_922242,
title = {HIGH ENERGY HADRON POLARIMETRY.},
author = {BUNCE,G.},
abstractNote = {Proton polarimetry at RHIC uses the interference of electromagnetic (EM) and hadronic scattering amplitudes. The EM spin-flip amplitude for protons is responsible for the proton's anomalous magnetic moment, and is large. This then generates a significant analyzing power for small angle elastic scattering. RHIC polarimetry has reached a 5% uncertainty on the beam polarization, and seem capable of reducing this uncertainty further. Polarized neutron beams ax also interesting for RHIC and for a polarized electron-polarized proton/ion collider in the fume. In this case, deuterons, for example, have a very small anomalous magnetic moment, making the approach used for protons impractical. Although it might be possible to use quasielastic scattering from the protons in the deuteron to monitor the polarization. 3-He beams can provide polarized neutrons, and do have a large anomalous magnetic moment, making a similar approach to proton polarimetry possible.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Sep 10 00:00:00 EDT 2007},
month = {Mon Sep 10 00:00:00 EDT 2007}
}

Conference:
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