Unitary ambiguity in the extraction of the E2/M1 ratio for the $γ N\leftrightarrowΔ$ transition

Details Unitary ambiguity in the extraction of the E2/M1 ratio for the $γ N\leftrightarrowΔ$ transition Unitary ambiguity in the extraction of the E2/M1 ratio for the $γ N\leftrightarrowΔ$ transition

1996-06-10

arxiv.org/abs/nucl-th/9606015v1

Phys.Rev.C54:1423-1426,1996

Physics

Nuclear Physics

Nuclear Theory

10 pages revtex including 4 postscript figures

Scientific paper

10.1103/PhysRevC.54.1423

The resonant electric quadrupole amplitude in the transition $\gamma N\leftrightarrow\Delta(1232)$ is of great interest for the understanding of baryon structure. Various dynamical models have been developed to extract it from the corresponding photoproduction multipole of pions on nucleons. It is shown that once such a model is specified, a whole class of unitarily equivalent models can be constructed, all of them providing exactly the same fit to the experimental data. However, they may predict quite different resonant amplitudes. Therefore, the extraction of the E2/M1($\gamma N\leftrightarrow\Delta$) ratio (bare or dressed) which is based on a dynamical model using a largely phenomenological $\pi N$ interaction is not unique.

Affiliated with

Also associated with

No associations

Rating

Unitary ambiguity in the extraction of the E2/M1 ratio for the $γ N\leftrightarrowΔ$ transition 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 Unitary ambiguity in the extraction of the E2/M1 ratio for the $γ N\leftrightarrowΔ$ transition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Unitary ambiguity in the extraction of the E2/M1 ratio for the $γ N\leftrightarrowΔ$ transition will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-235849