Study of the proton structure by measurements of polarization transfers in real Compton scattering at JLab
1 Dipartimento di Fisica, Università La Sapienza, Rome, Italy
2 INFN, Sezione di Roma, I–00185, Rome, Italy
3 INFN, Sezione di Roma, gruppo Sanità and Istituto Superiore di Sanità, I-00161 Rome, Italy
4 Glasgow University, Glasgow, G12 8QQ, Scotland, United Kingdom
5 Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
a e-mail: email@example.com
Published online: 20 March 2014
A preliminary analysis of polarization-transfer data at large scattering angle (70°), obtained in an experiment of real Compton scattering on proton, performed in Hall-C of Jefferson Lab, is presented. It is also discussed the relevance of this kind of experiments for shedding light on the non-perturbative structure of the proton, at low energy, and on the transition from the non-perturbative regime to the perturbative one, that occurs at high energy. Moreover, the possibility to extract Compton form factors and the Generalized Parton Distributions, one of the most promising theoretical tool to determine the total angular momentum contribution of quarks and gluons to nucleon spin, is emphasized.
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