Photoproduction of $Ï$ mesons on nuclei near the production threshold
arXiv:1008.4520 · doi:10.1140/epja/i2011-11016-5
Abstract
The photoproduction of $Ï$ mesons on LH_2, C and Nb has been studied for incident photon energies from 900 to 1300 MeV using the CB/TAPS detector at ELSA. The $Ï$ line shape does not show any significant difference between the LH_2 and the Nb targets. The data are compared with results of transport calculations that predict a sensitivity of the $Ï$ line shape to in-medium modifications near the production threshold on a free nucleon of $E_γ^{lab}$ = 1109 MeV.}
5 pages, 3 figures