Final-state interaction as the origin of the Cronin effect
The Cronin effect that refers to the enhancement of hadron spectra at intermediate p(T) with increasing A in pA collisions is traditionally explained in terms of the broadening of the parton transverse momentum in the initial state. We show that recent data on the nuclear modification factor at eta=...
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| Published in | Physical review letters Vol. 93; no. 8; p. 082302 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
United States
20.08.2004
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| Online Access | Get more information |
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| Summary: | The Cronin effect that refers to the enhancement of hadron spectra at intermediate p(T) with increasing A in pA collisions is traditionally explained in terms of the broadening of the parton transverse momentum in the initial state. We show that recent data on the nuclear modification factor at eta=0 for d+Au collisions can be understood in terms of the recombination of soft and shower partons in the final state. It is the centrality dependence of the soft parton density that leads to the Cronin effect. |
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| ISSN: | 0031-9007 |
| DOI: | 10.1103/physrevlett.93.082302 |