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α clusters and collective flow in ultrarelativistic carbon–heavy-nucleus collisions

Piotr Bożek, Wojciech Broniowski, Enrique Ruiz Arriola, and Maciej Rybczyński
Phys. Rev. C 90, 064902 – Published 3 December 2014

Abstract

We investigate ultrarelativistic collisions of the C12 nucleus with heavy targets and show that harmonic flow measures based on ratios of cumulant moments are particularly suited for study of the intrinsic deformation of the C12 wave function. In this way one can probe the expected α clusterization in the ground state, which leads to a large initial triangularity in the shape of the fireball in the transverse plane. We show that the clusterization effect results in very characteristic behavior of the ratios of the cumulant moments as functions of the number of participant nucleons, for both elliptic and triangular deformations. Thus experimental event-by-event studies of harmonic flow in ultrarelativistic light-heavy collisions may offer a new window through which to look at the ground-state structure of light nuclei.

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  • Received 29 October 2014
  • Revised 21 November 2014

DOI:https://doi.org/10.1103/PhysRevC.90.064902

©2014 American Physical Society

Authors & Affiliations

Piotr Bożek1,2,*, Wojciech Broniowski3,2,†, Enrique Ruiz Arriola4,‡, and Maciej Rybczyński3,§

  • 1AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, al. Mickiewicza 30, 30-059 Krakow, Poland
  • 2The H. Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Cracow, Poland
  • 3Institute of Physics, Jan Kochanowski University, 25-406 Kielce, Poland
  • 4Departamento de Física Atómica, Molecular y Nuclear and Instituto Carlos I de Física Teórica y Computacional, Universidad de Granada, E-18071 Granada, Spain

  • *Piotr.Bozek@ifj.edu.pl
  • Wojciech.Broniowski@ifj.edu.pl
  • earriola@ugr.es
  • §Maciej.Rybczynski@ujk.edu.pl

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Issue

Vol. 90, Iss. 6 — December 2014

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