Abstract
The phenomenological analysis and interpretation of experimental data from RHIC and LHC on the production of J/ψ and D mesons in heavy-ion collisions are performed within the two-component HYDJET++ model including the thermal and hard mechanisms of hadron production. It is shown that the thermal freeze-out of charmed mesons at RHIC energies occurs earlier than the thermal freeze-out of light hadrons (assumingly, simultaneously with chemical freeze-out), which indicates that J/ψ and D mesons are not in kinetic equilibrium with the formed hadronic matter. At the same time, a significant part of D mesons at LHC energies are in kinetic equilibrium with the formed thermalized matter, but J/ψ mesons are still characterized by early freeze-out.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
I. Arsene et al. (BRAHMS Collab.), Nucl. Phys. A 757, 1 (2005).
B. B. Back et al. (PHOBOS Collab.), Nucl. Phys. A 757, 28 (2005).
J. Adams et al. (STAR Collab.), Nucl. Phys. A 757, 102 (2005).
K. Adcox et al. (PHENIX Collab.), Nucl. Phys. A 757, 184 (2005).
I. M. Dremin and A. V. Leonidov, Phys. Usp. 53, 1123 (2010).
N. Armesto and E. Scomparin, Eur. Phys. J. P 131, 52 (2016).
S. Cao and S. A. Bass, Phys. Rev. C 84, 064902 (2011).
A. Andronic, P. Braun-Munzinger, K. Redlich, and J. Stachel, Phys. Lett. B 571, 36 (2003).
A. Andronic, P. Braun-Munzinger, K. Redlich, and J. Stachel, Nucl. Phys. A 789, 334 (2007).
K. A. Bugaev, M. Gazdzicki, and M. I. Gorenstein, Phys. Lett. B 523, 255 (2001).
I. P. Lokhtin, L. V. Malinina, S. V. Petrushanko, A. M. Snigirev, I. Arsene, and K. Tywoniuk, Comput. Phys. Commun. 180, 779 (2009).
I. P. Lokhtin, A. V. Belyaev, L. V. Malinina, S. V. Petrushanko, E. P. Rogochnaya, and A. M. Snigirev, Eur. Phys. J. C 72, 2045 (2012).
L. V. Bravina, B. H. Brusheim Johansson, G. Kh. Eyyubova, et al., Eur. Phys. J. C 74, 2807 (2014).
L. V. Bravina, G. Kh. Eyyubova, V. L. Korotkikh, et al., Phys. Rev. C 91, 064907 (2015).
L. V. Bravina, E. S. Fotina, V. L. Korotkikh, et al., Eur. Phys. J. C 75, 588 (2015).
I. P. Lokhtin, L. V. Malinina, S. V. Petrushanko, and A. M. Snigirev, Phys. At. Nucl. 73, 2139 (2010).
N. S. Amelin, R. Lednicky, T. A. Pocheptsov, et al., Phys. Rev. C 74, 064901 (2006).
N. S. Amelin, R. Lednicky, I. P. Lokhtin, et al., Phys. Rev. C 77, 014903 (2008).
G. Torrieri, S. Steinke, W. Broniowski, W. Florkowski, J. Letessier, and J. Rafelski, Comput. Phys. Commun. 167, 229 (2005).
I. P. Lokhtin and A. M. Snigirev, Eur. Phys. J. C 45, 211 (2006).
T. Sjostrand, S. Mrenna, and P. Skands, J. High Energy Phys. 0605, 026 (2006).
R. Baier, Yu. L. Dokshitzer, A. H. Mueller, S. Peigne, and D. Schiff, Nucl. Phys. B 483, 291 (1997).
R. Baier, Yu. L. Dokshitzer, A. H. Mueller, S. Peigne, and D. Schiff, Phys. Rev. C 60, 064902 (1999).
R. Baier, Yu. L. Dokshitzer, A. H. Mueller, and D. Schiff, Phys. Rev. C 64, 057902 (2001).
Yu. L. Dokshitzer and D. Kharzeev, Phys. Lett. B 519, 199 (2001).
J. D. Bjorken, Fermilab Preprint Pub-82/29-THY (1982).
E. Braaten and M. Thoma, Phys. Rev. D 44, 1298 (1991).
I. P. Lokhtin and A. M. Snigirev, Eur. Phys. J. C 16, 527 (2000).
J. D. Bjorken, Phys. Rev. D 27, 140 (1983).
L. Adamczyk et al. (STAR Collab.), Phys. Rev. C 90, 024906 (2014).
L. Adamczyk et al. (STAR Collab.), Phys. Rev. Lett. 113, 142301 (2014).
J. Adam et al. (ALICE Collab.), J. High Energy Phys. 1605, 179 (2016).
B. Abelev et al. (ALICE Collab.), J. High Energy Phys. 1209, 112 (2012).
E. Abbas et al. (ALICE Collab.), Phys. Rev. Lett. 111, 162301 (2013).
B. Abelev (ALICE Collab.), Phys. Rev. Lett. 111, 102301 (2013).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © I.P. Lokhtin, A.V. Belyaev, G. Ponimatkin, E.Yu. Pronina, G.Kh. Eiyubova, 2017, published in Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2017, Vol. 151, No. 2, pp. 285–292.
Rights and permissions
About this article
Cite this article
Lokhtin, I.P., Belyaev, A.V., Ponimatkin, G. et al. On the possibility of thermalization of heavy mesons in ultrarelativistic nuclear collisions. J. Exp. Theor. Phys. 124, 244–250 (2017). https://doi.org/10.1134/S1063776117010149
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063776117010149