Hadron production in the transfragmentation region in heavy-ion collisions
- Institute of Theoretical Science and Department of Physics, University of Oregon, Eugene, Oregon, 97403-5203 (United States)
We study the production of hadrons in Au+Au collisions in the region 0.6<x{sub F}<1.2, which we refer to as the transfragmentation region (TFR), since it corresponds roughly to {eta}{sup '}>0, where {eta}{sup '}={eta}-y{sub beam}, depending on the transverse momentum p{sub T}. We show how hadrons can be produced in that region when the hadronization process is parton recombination. The inclusive x distributions for proton and pion production are calculated with momentum degradation taken into account. The results show that the proton yield is significantly higher than that of the pions in the TFR. Without particle identification, the existing data cannot be used for comparison with our result on the p/{pi} ratio. Without p{sub T} determination, it is not feasible to relate the x distribution to the experimental {eta}{sup '} distribution. Nevertheless, on theoretical grounds we have shown why the production of hadrons in the TFR is not forbidden by momentum conservation.
- OSTI ID:
- 20771479
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 73, Issue 4; Other Information: DOI: 10.1103/PhysRevC.73.044913; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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