Three and two hadron correlations in sNN=200GeV proton-proton and nucleus-nucleus collisions
Por:
Ayala A., Jalilian-Marian J., Magnin J., Ortiz A., Paic G., Tejeda-Yeomans M.E.
Publicada:
29 ene 2010
Categoría:
Physics and Astronomy (miscellaneous)
Resumen:
We compare the azimuthal correlations arising from three and two hadron production in p+p and Au+Au collisions at sNN=200GeV. 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. © 2010 The American Physical Society.
Filiaciones:
Ayala A.:
Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico
Jalilian-Marian J.:
Department of Natural Sciences, Baruch College, New York, NY 10010, United States
CUNY Graduate Center, 365 Fifth Avenue, New York, NY 10016, United States
Magnin J.:
Centro Brasileiro de Pesquisas Físicas, CBPF, Rua Dr. Xavier Sigaud 150, 22290-180, Rio de Janeiro, Brazil
Ortiz A.:
Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico
Paic G.:
Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico
Tejeda-Yeomans M.E.:
Departamento de Física, Universidad de Sonora, Boulevard Luis Encinas J. y Rosales, Colonia Centro, Hermosillo, Sonora 83000, Mexico
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