Measurements of the Generalized Electric and Magnetic Polarizabilities of the Proton at LowUsing the Virtual-Compton-Scattering Reaction
Authors:
- Y. SatoYSY. Sato
- J. ShawJSJ. Shaw
- R. AlarconRAR. Alarcon
- A. M. BernsteinABA. M. Bernstein
- W. BertozziWBW. Bertozzi
- T. BottoTBT. Botto
- J. CalarcoJCJ. Calarco
- F. CasagrandeFCF. Casagrande
- M. O. DistlerMDM. O. Distler
- K. DowKDK. Dow
- M. FarkondehMFM. Farkondeh
- 21 November 2006
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 97 (21) , 212001
Abstract
The mean square polarizability radii of the proton have been measured for the first time in a virtual-Compton-scattering experiment performed at the MIT-Bates out-of-plane scattering facility. Response functions and polarizabilities obtained from a dispersion analysis of the data at are in agreement with heavy baryon chiral perturbation theory. The data support the dominance of mesonic effects in the polarizabilities.
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