Hadron Correlations Measured with ALICE

Grosse-Oetringhaus, J. F. and Abelev, B. and Adam, J. and Adamová, D. and Adare, and Aggarwal, M. M. and Agnello, M. and Agócs, András and Agostinelli, A. and Ahammed, Z. and Ahmad, Masoodi A. and Ahmad, N. and Ahn, S. A. and Ahn, S. U. and Ajaz, M. and Akindinov, A. and Alaniz, E. C. and Aleksandrov, D. and Alessandro, B. and Alici, A. and Alkin, A. and Alme, J. and Alt, T. and Altini, V. and Altinpinar, S. and Altsybeev, I. and Andrei, C. and Andronic, A. and Anguelov, V. and Anielski, J. and Barnaföldi, Gergely Gábor and Bencédi, Gyula and Berényi, Dániel and Boldizsár, László and Dénes, Ervin and Hamar, Gergő and Lévai, Péter and Pochybova, Sona (2013) Hadron Correlations Measured with ALICE. NUCLEAR PHYSICS A, 910-91. pp. 58-64. ISSN 0375-9474

Preview

Text 1208.1445v1.pdf Available under License Creative Commons Attribution. Download (2MB) | Preview

Abstract

Angular particle correlations are a powerful tool to study collective effects and in-medium jet modification as well as their interplay in the hot and dense medium produced in central heavy-ion collisions. We present measurements of two-particle angular correlations of inclusive charged and identified particles performed with the ALICE detector. The near-side peak in the short-range correlation region is quantitatively analyzed: while the rms of the peak in φ-direction is independent of centrality within uncertainties, we find a significant broadening in η-direction from peripheral to central collisions. The particle content of the near-side peak is studied finding that the p/π ratio of particles associated to a trigger particle is much smaller than the one in the bulk of the particles and consistent with fragmentation of a parton in vacuum.

Actions (login required)

Edit Item