Scaling and Resonances in Elementary K^+ Lambda Photoproduction

Details Scaling and Resonances in Elementary K^+ Lambda Photoproduction Scaling and Resonances in Elementary K^+ Lambda Photoproduction

2010-12-09

arxiv.org/abs/1012.2126v2

Phys.Rev.C83:025207,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

Accepted by Physical Review C, 11 Pages, 8 Figures; fixed figure and reference formats per PRC

Scientific paper

10.1103/PhysRevC.83.025207

Recent cross section data for the reaction gamma + p \to K^+ + Lambda are examined for evidence of scaling in both the low-t Regge domain and in the high \sqrt{s} and -t domain where constituent counting may apply. It is shown that the reaction does scale in both regimes. At large center of mass angles, s^{-7} scaling appears to hold at essentially all -t, but with angle-dependent oscillations. The scaled data show particularly strong evidence for s-channel resonances for -t below 2 GeV^2 and for W below about 2.3 GeV. The dominant contributions are consistent with an N^* S_{11} resonance at 1690 MeV, a P_{13} at 1920 MeV, and a D_{13} resonance at 2100 MeV, which interfere to give the observed strong angular dependence.

Affiliated with

Also associated with

No associations

Rating

Scaling and Resonances in Elementary K^+ Lambda Photoproduction 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 Scaling and Resonances in Elementary K^+ Lambda Photoproduction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scaling and Resonances in Elementary K^+ Lambda Photoproduction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-106226