Journal article
Authors list: Cassing, W; Bratkovskaya, EL; Hansen, O
Publication year: 2002
Pages: 224-238
Journal: Nuclear Physics A: Nuclear and Hadronic Physics
Volume number: 707
Issue number: 1-2
ISSN: 0375-9474
eISSN: 1873-1554
DOI Link: https://doi.org/10.1016/S0375-9474(02)00919-3
Publisher: Elsevier
Abstract:
The production of antiprotons in p + A reactions is calculated in a microscopic transport approach employing hadronic and string degrees of freedom (HSD). It is found that the abundancies of antiprotons as observed by the E910 Collaboration in p + A reactions at 12.3 GeV/c as well as 17.5 GeV/c can approximately be described on the basis of primary proton-nucleon and secondary meson-baryon production channels for all targets. The transport calculations demonstrate that the antiproton rapidity distributions for heavy targets are sensitive to the (p) over bar (or hadron) formatrion time in the nuclear medium. Within our analysis the data from the E910 Collaboration are reasonably described with a formation time of 0.4-0.8 fm/c in the hadron rest frame. (C) 2002 Elsevier Science B.V. All rights reserved.
Citation Styles
Harvard Citation style: Cassing, W., Bratkovskaya, E. and Hansen, O. (2002) Probing hadronic formation times with antiprotons in p+A reactions at AGS energies, Nuclear Physics A: Nuclear and Hadronic Physics, 707(1-2), Article PII S0375-9474(02)00919-3. pp. 224-238. https://doi.org/10.1016/S0375-9474(02)00919-3
APA Citation style: Cassing, W., Bratkovskaya, E., & Hansen, O. (2002). Probing hadronic formation times with antiprotons in p+A reactions at AGS energies. Nuclear Physics A: Nuclear and Hadronic Physics. 707(1-2), Article PII S0375-9474(02)00919-3, 224-238. https://doi.org/10.1016/S0375-9474(02)00919-3
Keywords
ANNIHILATION; GEV/C; HEAVY-ION COLLISIONS; many-body theory; nuclear reaction models and methods; NUCLEUS-NUCLEUS COLLISIONS; PB-PB COLLISIONS; PROTON-NUCLEUS; relativistic models; SPS ENERGIES; STRANGENESS ENHANCEMENT; SUBTHRESHOLD ANTIPROTON; TRANSPORT APPROACH