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Experimental High Energy Physics

Publications

Cross sections for the γp→K^(*+) Λ and γp→K^(*+) Σ^0 reactions measured at CLAS

Publicaciones

Cross sections for the γp→K^(*+) Λ and γp→K^(*+) Σ^0 reactions measured at CLAS

Research areas:

Física Experimental de Alta Energía

Year:

2013

Type of Publication:

In Proceeding

Authors:

Journal:

Phys.Rev.

Volume:

C87

Pages:

13

Abstract:

The first high-statistics cross sections for the reactions γp→K*+Λ and γp→K*+Σ0 were measured using the CLAS detector at photon energies between threshold and 3.9 GeV at the Thomas Jefferson National Accelerator Facility. Differential cross sections are presented over the full range of the center-of-mass angles, and then fitted to Legendre polynomials to extract the total cross section. Results for the K*+Λ final state are compared with two different calculations in an isobar and a Regge model, respectively. Theoretical calculations significantly underestimate the K*+Λ total cross sections between 2.1 and 2.6 GeV, but are in better agreement with present data at higher photon energies.

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