Virtual Compton Scattering at low energy and the generalized polarizabilities of the nucleon
Virtual Compton Scattering (VCS) {gamma}*p {yields} {gamma}p at low CM energy gives access to the Generalized Polarizabilities of the nucleon. These observables generalize the concept of electromagnetic polarizabilities to the case of a virtual photon. Dedicated VCS experiments have been performed at MAMI, Jefferson Lab and MIT-Bates. The experimental status is reviewed, including analysis methods and physics results. The measurement of absolute (ep {yields} ep{gamma}) cross sections allows the extraction of the two unpolarized VCS structure functions P{sub LL}-P{sub TT}/{epsilon} and P{sub LT}, which are combinations of the Generalized Polarizabilities of the proton. Future prospects in the field of VCS at low energy are also presented.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 824829
- Report Number(s):
- JLAB-PHY-03-19; DOE/ER/40150-2732; TRN: US0402341
- Resource Relation:
- Conference: 2nd Conference On Nuclear And Particle Physics With CEBAF At Jlab (NAPP 2003), Dubrovnik (HR), 05/26/2003--05/31/2003; Other Information: PBD: 1 May 2003
- Country of Publication:
- United States
- Language:
- English
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