Journal article

Publication year: 1997

Pages: 832-854

Journal: Nuclear Physics A: Nuclear and Hadronic Physics

Volume number: 625

Issue number: 4

ISSN: 0375-9474

Open access status: Green

DOI Link: https://doi.org/10.1016/S0375-9474(97)00471-5

Publisher: Elsevier

Abstract: 
The omega-, rho-, and phi-resonance production and their dileptonic decay in pi(-)A reactions at 1.1-1.7 GeV/c are calculated within the intranuclear cascade (INC) approach. The invariant mass distribution of the dilepton pair for each resonance can be decomposed in two components which correspond to their decay ''inside'' the target nucleus and in the vacuum, respectively. The first components are strongly distorted by the nuclear medium due to resonance-nucleon scattering and a possible mass shift at finite baryon density. These medium modifications are compared to background sources in the dilepton spectrum from pi N bremsstrahlung as well as the Dalitz decays of omega and eta mesons produced in the reaction, Detailed predictions for pi(-)Pb reactions at 1.3 and 1.7 GeV/c are made within several momentum bins for the lepton pair. (C) 1997 Elsevier Science B.V.

Harvard Citation style: Golubeva, Y., Kondratyuk, L. and Cassing, W. (1997) Medium effects in the production and decay of vector mesons in pion-nucleus reactions, Nuclear Physics A: Nuclear and Hadronic Physics, 625(4), pp. 832-854. https://doi.org/10.1016/S0375-9474(97)00471-5

APA Citation style: Golubeva, Y., Kondratyuk, L., & Cassing, W. (1997). Medium effects in the production and decay of vector mesons in pion-nucleus reactions. Nuclear Physics A: Nuclear and Hadronic Physics. 625(4), 832-854. https://doi.org/10.1016/S0375-9474(97)00471-5