$A$ dependence of the $γ$- and $p$-induced production of the $Λ(1520)$ from nuclei

Details $A$ dependence of the $γ$- and $p$-induced production of the $Λ(1520)$ from nuclei $A$ dependence of the $γ$- and $p$-induced production of the $Λ(1520)$ from nuclei

2006-01-24

arxiv.org/abs/nucl-th/0601074v1

Eur.Phys.J. A28 (2006) 139-145

Physics

Nuclear Physics

Nuclear Theory

14 pages, 5 figures

Scientific paper

10.1140/epja/i2006-10052-6

Using results of a recent calculation of the $\Lambda(1520)$ in the nuclear medium, which show that the medium width is about five times the free width, we study the A dependence of the $\Lambda(1520)$ production cross section in the reactions $\gamma ~A \to K^+ \Lambda(1520) A^\prime$ and $p~ A \to p~ K^+ \Lambda(1520) A^\prime$. We find a sizable A dependence in the ratio of the nuclear cross sections for heavy nuclei with respect to a light one due to the large value of the $\Lambda(1520)$ width in the medium, showing that devoted experiments, easily within reach in present facilities, can provide good information on that magnitude by measuring the cross sections studied here.

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