Izlaganje sa skupa
JLab proton polarization data in respect to global unitary and analitic model of nucleon electromagnetic structure
S. Dubnička
; Institute of Physics, Slovak Academy of Science, Bratislava, Slovak Republic
A.-Z. Dubničková
; Comenius University, Department of Theoretical Physics, Bratislava, Slovak Republic
Sažetak
It is demonstrated that the new JLab proton polarization data, which are in a rather strong disagreement with the proton electric form factor data in the space-like region obtained by the Rosenbluth technique, are consistent with all known form factor properties, including also the QCD asymptotics. However, they require the existence of a zero value (i.e. a diffraction minimum) of the proton electric form factor around t=15 GeV2. That leads to a change of our understanding of the charge distribution inside the proton.
Ključne riječi
proton electric form factor; polarization data; Rosenbluth technique
Hrčak ID:
305632
URI
Datum izdavanja:
1.3.2004.
Posjeta: 84 *