Results on transverse spin asymmetries in the polarized proton-proton elastic scattering in the CNI region at STAR

Journal Article · Fri Jul 15 04:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3601423· OSTI ID:21608237

Svirida, D ^[1]

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1. Institute for Theoretical and Experimental Physics, 25 B. Cheremushkinskaya, 117218 Moscow (Russian Federation)

Elastic scattering of polarized protons at small four momentum transfer squared t is described by interference of Coulomb and nuclear amplitudes. Coulomb amplitude is well calculable by QED and such interference provides a unique opportunity to study the nuclear amplitude. At high energies this amplitude is believed to be dominated by Pomeron exchange. Measurement of asymmetries can provide evidence for contribution of other Reggeons, including hypothetical Odderon. Polarized proton collider at RHIC facility is a perfect place for such experiment.A one-week dedicated run with special beam optics in June 2009 allowed us to collect statistics of more than 30 millions of elastic triggers with transversely polarized beams in the -t range 0.005-0.035 (GeV/c){sup 2} at {radical}(s) = 200 GeV. In this paper we present preliminary results of single and double transverse spin asymmetries.

• OSTI ID: 21608237
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1350; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
AMPLITUDES
ANGULAR MOMENTUM
ASYMMETRY
BARYON REACTIONS
BARYONS
BEAMS
BROOKHAVEN RHIC
CHARGED-PARTICLE REACTIONS
COULOMB FIELD
ELASTIC SCATTERING
ELECTRIC FIELDS
ELECTRODYNAMICS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FIELD THEORIES
FOUR MOMENTUM TRANSFER
GEV RANGE
HADRON REACTIONS
HADRONS
HEAVY ION ACCELERATORS
INTERFERENCE
MOMENTUM TRANSFER
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEONS
PARTICLE PROPERTIES
POLARIZED BEAMS
POMERANCHUK PARTICLES
PROTON REACTIONS
PROTONS
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
QUASI PARTICLES
REGGE POLES
SCATTERING
SCATTERING AMPLITUDES
SPIN
STORAGE RINGS