TY  - JOUR
AU  - Olmos de Leon, V.
AU  - Wissmann, F.
AU  - Achenbach, P.
AU  - Ahrens, J.
AU  - Arends, H. J.
AU  - Beck, R.
AU  - Harty, P. D.
AU  - Hejny, V.
AU  - Jennewein, P.
AU  - Kotulla, M.
AU  - Krusche, B.
AU  - Kuhr, V.
AU  - Leukel, R.
AU  - MacGeorge, J. C.
AU  - Metag, V.
AU  - Novotny, R.
AU  - Polonski, A.
AU  - Rambo, F.
AU  - Schmidt, A.
AU  - Schumacher, M.
AU  - Siodlaczek, U.
AU  - Ströher, H.
AU  - Thomas, A.
AU  - Weiß, J.
AU  - Wolf, M.
TI  - Low-energy compton scattering and the polarizabilities of the proton
JO  - The European physical journal / A
VL  - 10
SN  - 1434-6001
CY  - Berlin
PB  - Springer
M1  - PreJuSER-35853
SP  - 207
PY  - 2001
N1  - Record converted from VDB: 12.11.2012
AB  - Differential cross-sections for Compton scattering from the proton hal e been measured at the MAMI tagged photon facility using the TAPS setup. The data cover an angular range of theta (lab)(gamma) = 59 degrees -155 degrees and photon energies ranging from 55 MeV to 165 MeV. Our results are in good agreement with those from previous experiments, but yield higher precision. Using dispersion relations the proton polarizabilities have been determined to be <(<alpha>)over bar> = [11.9 +/- 0.5(stat.) -/+ 1.3(syst.) +/- 0.3(mod.)] (.) 10(-4) fm(3) and <(<beta>)over bar> = [1.2 +/- 0.7(stat.) +/- 0.3(syst). +/- 0.4(mod.))] (.) 10(-4) fm(3). These results confirm the Baldin sum rule which was re-evaluated to be <(<alpha>)over bar> + <(<beta>)over bar> = [13.8 +/- 0.4] 10(-4) fm(3). We can also conclude that there is no significant additional asymptotic contribution to the backward spin polarizability gamma (pi) beyond the t-channel pi (0)-exchange.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000168527600012
UR  - https://juser.fz-juelich.de/record/35853
ER  -