Three and two hadron correlations in sq.rt.(S(NN))=200 GeV proton-proton and nucleus-nucleus collisions.
Phys Rev Lett
; 104(4): 042301, 2010 Jan 29.
Article
em En
| MEDLINE
| ID: mdl-20366700
ABSTRACT
We compare the azimuthal correlations arising from three and two hadron production in p+p and Au+Au collisions at sq.rt.(S(NN))=200 GeV. We show that in Au+Au, the two away side partons in two-to-three processes have in average a smaller and a greater path length than the average path length of the away-side parton in two-to-two processes. Since in average the particle with the shortest path length in two-to-three processes loses less energy, with respect to the away-side particle in two-to-two processes, this effect leads to a relative enhancement of the ratio of two-to-three to two-to-two processes in Au+Au compared to p+p collisions. We argue that this phenomenon may be responsible for the shape of the away side in azimuthal correlations at the Relativistic Heavy-Ion Collider.
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MEDLINE
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En
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Phys Rev Lett
Ano de publicação:
2010
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Article