Abstract
A unified statistical thermal freeze-out model (USTFM) is used to study the chemical potential dependence of identified particle ratios at mid-rapidity in heavy-ion collisions. We successfully reproduce the experimental data ranging from SPS energies to LHC energies, suggesting the statistical nature of the particle production in these collisions and hence the validity of our approach. The behavior of the freeze-out temperature is studied with respect to chemical potential. The freeze-out temperature is found to be universal at the RHIC and LHC and is close to the QCD predicted phase transition temperature, suggesting that the chemical freeze-out occurs soon after the hadronization takes place.
Similar content being viewed by others
References
U. W. Heinz, Nucl. Phys. A 661, 140 (1999).
F. Becattini, Z. Phys. C 69, 485 (1996)
F. Becattini and U. Heinz, Z. Phys. C 76, 269 (1997)
F. Becattini and G. Passaleva, Eur. Phys. J. C 23, 551 (2002)
F. Becattini, Nucl. Phys. A 702, 336 (2002).
J. Cleymans and K. Redlich, Phys. Rev. Lett. 81, 5284 (1998)
J. Cleymans and K. Redlich, Phys. Rev. C 60, 054908 (1999).
B. Biedron and W. Broniowski, Phys. Rev. C 75, 054905 (2007).
S. Uddin et al., J. Phys. G 39, 015012 (2012)
S. Uddin et al., Nucl. Phys. A 934, 121 (2015)
S. Uddin et al., Adv. High Energy Phys. 2015, 154853 (2015)
Riyaz Ahmed Bhat et al., Nucl. Phys. A 935, 43 (2015)
Inamul Bashir et al., Int. J. Mod. Phys. A 30, 1550139 (2015), S. Uddin et al., arXiv: 1412.2663.
J. Cleymans, J. Phys. G: Nucl. Part. Phys. 35, 044017 (2008)
F. Becattini et al., Proc. Sci. CPOD07, 012 (2007).
O. Ristea (BRAHMS Collab.), Rom. Rep. Phys. 56, 659 (2004).
B. I. Abelev et al. (STAR Collab.), Phys. Rev. C 79, 034909 (2009).
J. Cleymans, I. Kraus, H. Oeschler, K. Redlich, and S. Wheaton, Phys. Rev. C 74, 034903 (2006).
B. B. Back et al. (PHOBOS Collab.), Phys. Rev. C 71, 021901 (2005).
J. Cleymans, I. Kraus, H. Oeschler, K. Redlich, and S. Wheaton, Phys. Rev. C 74, 034903 (2006).
A. Tawfik, E. Gamal, and A. G. Shalaby, Int. J. Mod. Phys. A 30, 1550131 (2015).
B. I. Abelev et al. (STAR Collab.), Phys. Rev. C 79, 034909 (2009).
M. M. Aggarwal et al. (STAR Collab.), Phys. Rev. C 83, 024901 (2011).
P. Braun-Muzinger, J. Cleymans, H. Oeschler, and K. Redlich, Nucl. Phys. A 697, 902 (2002).
J. Cleymans, H. Oeschler, K. Redlich, and S. Wheaton, Phys. Lett. B 615, 50 (2005).
M. Mishra and C. P. Singh, Phys. Rev. C 78, 024910 (2008).
C. Blume et al. (NA49 Collab.), J. Phys. G 31, S685 (2005).
Author information
Authors and Affiliations
Corresponding author
Additional information
The article is published in the original.
Rights and permissions
About this article
Cite this article
Bashir, I., Nanda, H. & Uddin, S. Chemical potential dependence of particle ratios within a unified thermal approach. J. Exp. Theor. Phys. 122, 1032–1037 (2016). https://doi.org/10.1134/S1063776116050022
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063776116050022