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Article

HYDrodynamics with JETs (HYDJET++): Latest Developments and Results †

by
Garnik Ambaryan
1,
Larissa Bravina
2,
Alexey Chernyshov
1,
Gyulnara Eyyubova
3,
Vladimir Korotkikh
3,
Igor Lokhtin
3,
Sergei Petrushanko
3,4,
Alexandr Snigirev
3,5 and
Evgeny Zabrodin
3,*
1
Physics Department, Lomonosov Moscow State University, RU-119991 Moscow, Russia
2
Department of Physics, University of Oslo, PB 1048 Blindern, N-0316 Oslo, Norway
3
Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, RU-119991 Moscow, Russia
4
Veksler and Baldin Laboratory of High Energy Physics, Joint Institute for Nuclear Research, RU-141980 Dubna, Russia
5
Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, RU-141980 Dubna, Russia
*
Author to whom correspondence should be addressed.
†
This paper is based on the talk at the 13th International Conference on New Frontiers in Physics (ICNFP 2024), Crete, Greece, 26 August–4 September 2024.
Particles 2025, 8(2), 35; https://doi.org/10.3390/particles8020035
Submission received: 31 December 2024 / Revised: 5 March 2025 / Accepted: 26 March 2025 / Published: 1 April 2025
(This article belongs to the Special Issue Selected Papers from the 13th International Conference on New Frontiers in Physics (ICNFP 2024))
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Abstract

Analysis of the (i) charge balance function and (ii) fluctuations of the net electric charge of hadrons in Pb+Pb collisions at center-of-mass energy 2.76 TeV per nucleon pair was performed within a two-component hydjet++ model. It is shown that neither the widths of the balance function nor the strongly intensive quantities, D and Σ, used to describe the net-charge fluctuations, can be reproduced within the model based on a grand canonical ensemble approach for generating multiparticle production. To solve this problem, it is necessary to take into account exact charge conservation in an event-by-event basis. The corresponding procedure was developed and implemented in the modified hydjet++ model. It provides a fair description of the experimental data.
Keywords: relativistic heavy-ion collisions; hybrid models; balance function; net-charge fluctuations; canonical charge conservation relativistic heavy-ion collisions; hybrid models; balance function; net-charge fluctuations; canonical charge conservation

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MDPI and ACS Style

Ambaryan, G.; Bravina, L.; Chernyshov, A.; Eyyubova, G.; Korotkikh, V.; Lokhtin, I.; Petrushanko, S.; Snigirev, A.; Zabrodin, E. HYDrodynamics with JETs (HYDJET++): Latest Developments and Results. Particles 2025, 8, 35. https://doi.org/10.3390/particles8020035

AMA Style

Ambaryan G, Bravina L, Chernyshov A, Eyyubova G, Korotkikh V, Lokhtin I, Petrushanko S, Snigirev A, Zabrodin E. HYDrodynamics with JETs (HYDJET++): Latest Developments and Results. Particles. 2025; 8(2):35. https://doi.org/10.3390/particles8020035

Chicago/Turabian Style

Ambaryan, Garnik, Larissa Bravina, Alexey Chernyshov, Gyulnara Eyyubova, Vladimir Korotkikh, Igor Lokhtin, Sergei Petrushanko, Alexandr Snigirev, and Evgeny Zabrodin. 2025. "HYDrodynamics with JETs (HYDJET++): Latest Developments and Results" Particles 8, no. 2: 35. https://doi.org/10.3390/particles8020035

APA Style

Ambaryan, G., Bravina, L., Chernyshov, A., Eyyubova, G., Korotkikh, V., Lokhtin, I., Petrushanko, S., Snigirev, A., & Zabrodin, E. (2025). HYDrodynamics with JETs (HYDJET++): Latest Developments and Results. Particles, 8(2), 35. https://doi.org/10.3390/particles8020035

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