Proton induced dielectron radiation off Nb: $P_t$ and $Y$ distributions

Abstract

Following our recent letter [1] on inclusive e(+)e(−) pair production in proton induced reactions at Ekin = 3.5 GeV on the nucleus Nb, we present here in addition the transverse and rapidity distributions for various e(+)e(−) invariant mass bins and compare them to reference data measured in p+p reactions.