Polarized Compton Scattering and Nucleon Spin Polarizabilities at the Upgraded HI{gamma}S Facility

Journal Article · Thu Dec 17 00:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3293952· OSTI ID:21325774

Weller, H R; Ahmed, M W; Henshaw, S; Stave, S ^[1]

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1. Duke University and Triangle Universities Nuclear Laboratory (TUNL), Box 90308, Durham, North Carolina 27708-0308 (United States)

The HI{gamma}S facility is capable of providing intense beams of linearly and circularly polarized gamma rays, at energies from 2 MeV and soon to extend up to 100 MeV. This paper describes a Compton scattering program which has been designed to measure the electric and magnetic polarizabilities of the proton and the neutron, as well as the spin-polarizabilities of both. Linearly polarized beams will be used to measure the electric and magnetic polarizabilities of the proton, while Compton scattering from the deuteron will lead to values of these fundamental quantities for the neutron. Circularly polarized beams and polarized proton and {sup 3}He targets will be used to extract the four spin-polarizabilities of the nucleons with accuracies ranging from 5-to-25%. These values will be compared to the predictions of Chiral Perturbation Theory and anticipated results from Lattice QCD calculations.

• OSTI ID: 21325774
• Journal Information: AIP Conference Proceedings, Vol. 1182, Issue 1; Conference: 10. conference on the intersections of particle and nuclear physics, San Diego, CA (United States), 26-31 May 2009; Other Information: DOI: 10.1063/1.3293952; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCURACY
CHIRALITY
COMPTON EFFECT
DEUTERONS
ELECTRONS
HELIUM 3 TARGET
HYDROGEN 1 TARGET
LATTICE FIELD THEORY
MEV RANGE
NEUTRONS
PERTURBATION THEORY
PHOTON BEAMS
PHOTON-NUCLEON INTERACTIONS
POLARIZABILITY
POLARIZATION
POLARIZED BEAMS
POLARIZED TARGETS
PROTONS
QUANTUM CHROMODYNAMICS
SPIN