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Title Polarisation Transfer in Proton Compton Scattering at High Momentum Transfer
Abstract The Jefferson Lab Hall A experiment E99-114 comprised a series of measurements to explore proton Compton scattering at high momentum transfer. For the first time, the polarisation transfer observables in the p (~ 0 ~ p) reaction were measured in the GeV energy range, where it is believed that quark-gluon degrees of freedom begin to dominate. The experiment utilised a circularly polarised photon beam incident on a liquid hydrogen target, with the scattered photon and recoil proton detected in a lead-glass calorimeter and a magnetic spectrometer, respectively. A high efficiency proton polarimeter located at the spectrometer focal plane was used to extract the beam helicity asymmetry, from which the polarisation transfer components (K LL and K LT ) at a centre-of-mass energy squared s = 6:9 GeV 2 and momentum transfer t = 4:0 GeV 2 were determined. This analysis involved modelling the precession of the proton spin in the magnetic optics of the spectrometer, as well as calibration of th
Author(s) David Hamilton
Publication Date December 2004
Document Type Thesis
Primary Institution Glasgow University, Glasgow, Scotland
Affiliation Exp Nuclear Physics / Experimental Halls / Hall A
Funding Source
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-PHY-04-330 OSTI Number: 917711
LANL Number: Other Number: DOE/ER/40150-5046
Associated with an experiment No
Associated with EIC No
Supported by Jefferson Lab LDRD Funding No
Thesis
Thesis Type PhD
Attachments/Datasets/DOI Link
Document(s)
davidhamilton.pdf (STI Document)
Dataset(s) (none)
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