A new $N^*(1675)$ resonance in the $γN\toηN$ reaction

Details A new $N^*(1675)$ resonance in the $γN\toηN$ reaction A new $N^*(1675)$ resonance in the $γN\toηN$ reaction

2005-12-12

arxiv.org/abs/hep-ph/0512136v2

Phys.Lett. B636 (2006) 253-258

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 9 figures. Accepted for publication in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2006.03.058

We study the $\eta$-photoproduction focusing on the new nucleon resonance which was observed at $\sqrt{s}=1675$ MeV with a narrow decay width ($\sim 10$ MeV) in the recent GRAAL experiment. Using an effective Lagrangian approach, we compute differential cross sections for the $\eta$-photoproduction. In addition to $N^*(1675)$, we employ three other nucleon resonances, i.e. $N^*(1535)$, $N^*(1650)$ and $N^*(1710)$, and vector meson exchanges which are the most relevant ones to this reaction process. As a result, we can reproduce the GRAAL data qualitatively well and observe obvious isospin asymmetry between the transition magnetic moments of $N^*(1675)$: $\mu_{\gamma nn^*}\gg\mu_{\gamma pp^*}$.

Affiliated with

Also associated with

No associations

Rating

A new $N^*(1675)$ resonance in the $γN\toηN$ reaction 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 A new $N^*(1675)$ resonance in the $γN\toηN$ reaction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A new $N^*(1675)$ resonance in the $γN\toηN$ reaction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-502594