Extracting the photoproduction cross section off the neutron gn-->pi-p from deuteron data with FSI effects

Details Extracting the photoproduction cross section off the neutron gn-->pi-p from deuteron data with FSI effects Extracting the photoproduction cross section off the neutron gn-->pi-p from deuteron data with FSI effects

2011-05-02

arxiv.org/abs/1105.0225v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

28 pages, 5 figures, 1 table

Scientific paper

The incoherent pion photoproduction reaction gd-->pi-pp is considered theoretically in a wide energy region Eth =< Eg =< 2700 MeV. The model applied contains the impulse approximation as well as the NN- and piN-FSI amplitudes. The aim of the paper is to study a reliable way for getting the information on elementary gn-->pi-p reaction cross section beyond the impulse approximation for gd-->pi-pp. For the elementary gN-->piN, NN-->NN, and piN-->piN amplitudes, the results of the GW DAC are used. There are no additional theoretical constraints. The calculated cross section dSigma/dOmega(gd->pi-pp) are compared with existing data. The procedure used to extract information on the differential cross section dSigma/dOmega(gn-->pi-p) on the neutron from the deuteron data using the FSI correction factor R is discussed. The calculations for R versus pi-p CM angle \theta_1 of the outgoing pion are performed at different photon-beam energies with kinematical cuts for "quasi-free" process gn-->pi-p. The results show a sizeable FSI effect R \neq 1 from S-wave part of pp-FSI at small angles close to \theta_1 ~ 0: this region narrows as the photon energy increases. At larger angles, the effect is small (|R-1|<<1) and agrees with estimations of FSI in the Glauber approach.

Affiliated with

Also associated with

No associations

Rating

Extracting the photoproduction cross section off the neutron gn-->pi-p from deuteron data with FSI effects does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Extracting the photoproduction cross section off the neutron gn-->pi-p from deuteron data with FSI effects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extracting the photoproduction cross section off the neutron gn-->pi-p from deuteron data with FSI effects will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-426173