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Measurements of event-by-event fluctuations of charged-particle multiplicities in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV using the ALICE detector at the CERN Large Hadron Collider (LHC) are presented in the pseudorapidity range…

Nuclear Experiment · Physics 2022-04-08 ALICE Collaboration

Event-by-event multiplicity fluctuations in nucleus-nucleus collisions are studied within the HSD and UrQMD transport models. The scaled variances of negative, positive, and all charged hadrons in Pb+Pb at 158 AGeV are analyzed in…

A comprehensive survey of event-by-event fluctuations of charged hadron multiplicity in relativistic heavy ions is presented. The survey covers Au+Au collisions at sqrt(s_NN) = 62.4 and 200 GeV, and Cu+Cu collisions sqrt(s_NN) = 22.5, 62.4,…

Nuclear Experiment · Physics 2016-09-07 A. Adare

We investigate the multiplicity fluctuations observed in high-energy nuclear collisions attributing them to intrinsic fluctuations of temperature of the hadronizing system formed in such processes. To account for these fluctuations we…

High Energy Physics - Phenomenology · Physics 2009-05-07 Grzegorz Wilk , Zbigniew Wlodarczyk

The centrality and system size dependence of multiplicity fluctuations of charged particles produced in nuclear collisions at $158 A$ GeV was studied by the NA49 collaboration. Centrality selected Pb+Pb collisions, semi-central C+C and…

Nuclear Experiment · Physics 2014-03-03 NA49 Collaboration

In this paper, we investigate the multiplicity fluctuations of charged particles observed in high-energy nuclear collisions and relate them to the size of hadronizing systems which happen during such processes. We use the average…

Nuclear Theory · Physics 2023-03-30 A. Bazgir , V. Z. Reyna Ortiz , M. Rybczynski , U. Shah , Z. Wlodarczyk

New results of the NA61/SHINE Collaboration at the CERN SPS on mean hadron multiplicities in proton-proton (p+p) interactions are analyzed within the transport models and the hadron resonance gas (HRG) statistical model. The chemical…

Nuclear Theory · Physics 2016-07-07 V. Vovchenko , V. V. Begun , M. I. Gorenstein

The kaon to pion ratio $K^+/\pi^+$ and the scaled variance $\omega^-$ for fluctuations of negatively charged particles are studied within the statistical hadron resonance gas (HRG) model and the Ultra relativistic Quantum Molecular Dynamics…

Nuclear Theory · Physics 2019-03-27 A. Motornenko , V. V. Begun , V. Vovchenko , M. I. Gorenstein , H. Stoecker

Particle number fluctuations and correlations in nucleus-nucleus collisions at SPS and RHIC energies are studied within the statistical hadron-resonance gas model in different statistical ensembles and in the Hadron-String-Dynamics (HSD)…

Nuclear Theory · Physics 2009-11-09 V. P. Konchakovski , M. Hauer , M. I. Gorenstein , E. L. Bratkovskaya

We present a comprehensive study of event-by-event multiplicity fluctuations in nucleon-nucleon and nucleus-nucleus interactions from AGS/FAIR to RHIC energies within the UrQMD transport approach. The scaled variances of negative, positive,…

Nuclear Theory · Physics 2008-11-26 Benjamin Lungwitz , Marcus Bleicher

The multihadron production in nucleus-nucleus collisions and its interrelation with that in (anti)proton-proton interactions are studied by exploring the charged particle mean multiplicity collision-energy and centrality dependencies in the…

High Energy Physics - Phenomenology · Physics 2016-04-05 Edward K. G. Sarkisyan , Aditya Nath Mishra , Raghunath Sahoo , Alexander S. Sakharov

We report the higher order cumulants and their ratios for baryon, charge and strangeness multiplicity in canonical and grand-canonical ensembles in ideal thermal model including all the resonances. When the number of conserved quanta is…

Nuclear Theory · Physics 2016-02-11 P. Garg , D. K. Mishra , P. K. Netrakanti , A. K. Mohanty

The increase in yields of light nuclei with charged particle multiplicity, as reported by the ALICE collaboration at CERN in p-p and p-Pb collisions at the LHC energy is investigated in the thermal hadron resonance gas model. The model is…

Nuclear Theory · Physics 2023-05-11 Natasha Sharma , Lokesh Kumar , Pok Man Lo , Krzysztof Redlich

Event-by-event fluctuations of conserved charges - such as electric charge, strangeness, and baryon number - in ultrarelativistic heavy-ion collisions provide insight into the properties of the quark-gluon plasma and the QCD phase diagram.…

Nuclear Experiment · Physics 2019-02-20 Alice Ohlson

The upcoming p+Pb run at the LHC will probe the nuclear gluon distribution at very small Bjorken x (from $x \sim 10^{-4}$ at mid-rapidity down to $x \sim 10^{-6}$ in the proton fragmentation region) and will allow to test approaches based…

High Energy Physics - Phenomenology · Physics 2012-10-23 Adrian Dumitru , Dmitri E. Kharzeev , Eugene M. Levin , Yasushi Nara

In the framework of various Glauber-like models we compute several correlation observables in nuclear collisions at the SPS, RHIC, and LHC energies. We analyze fluctuations of the eccentricity of the fireball created in the collision, in…

Nuclear Theory · Physics 2009-02-24 Maciej Rybczynski , Wojciech Broniowski , Piotr Bozek

We generalize and extend the recently proposed method to account for contributions of system size (or volume/participant) fluctuations to the experimentally measured moments of particle multiplicity distributions. We find that in the…

Nuclear Theory · Physics 2024-03-07 Romain Holzmann , Volker Koch , Anar Rustamov , Joachim Stroth

Measurements of multiplicity fluctuations of identified hadrons produced in inelastic p+p interactions at 31, 40, 80, and 158~\GeVc beam momentum are presented. Three different measures of multiplicity fluctuations are used: the scaled…

Nuclear Experiment · Physics 2021-06-14 SHINE Collaboration , A. Acharya , H. Adhikary , A. Aduszkiewicz , K. K. Allison , E. V. Andronov , T. Antićić , V. Babkin , M. Baszczyk , S. Bhosale , A. Blondel , M. Bogomilov , A. Brandin , A. Bravar , W. Bryliński , J. Brzychczyk , M. Buryakov , O. Busygina , A. Bzdak , H. Cherif , M. Ćirković , M. Csanad , J. Cybowska , T. Czopowicz , A. Damyanova , N. Davis , M. Deliyergiyev , M. Deveaux , A. Dmitriev , W. Dominik , P. Dorosz , J. Dumarchez , R. Engel , G. A. Feofilov , L. Fields , Z. Fodor , A. Garibov , M. Gaździcki , O. Golosov , V. Golovatyuk , M. Golubeva , K. Grebieszkow , F. Guber , A. Haesler , S. N. Igolkin , S. Ilieva , A. Ivashkin , S. R. Johnson , K. Kadija , N. Kargin , E. Kashirin , M. Kiełbowicz , V. A. Kireyeu , V. Klochkov , V. I. Kolesnikov , D. Kolev , A. Korzenev , V. N. Kovalenko , S. Kowalski , M. Koziel , A. Krasnoperov , W. Kucewicz , M. Kuich , A. Kurepin , D. Larsen , A. László , T. V. Lazareva , M. Lewicki , K. Łojek , V. V. Lyubushkin , M. Maćkowiak-Pawłowska , Z. Majka , B. Maksiak , A. I. Malakhov , A. Marcinek , A. D. Marino , K. Marton , H. -J. Mathes , T. Matulewicz , V. Matveev , G. L. Melkumov , A. O. Merzlaya , B. Messerly , Ł. Mik , S. Morozov , Y. Nagai , M. Naskręt , V. Ozvenchuk , V. Paolone , O. Petukhov , I. Pidhurskyi , R. Płaneta , P. Podlaski , B. A. Popov , B. Porfy , M. Posiadała-Zezula , D. S. Prokhorova , D. Pszczel , S. Puławski , J. Puzović , M. Ravonel , R. Renfordt , D. Röhrich , E. Rondio , M. Roth , B. T. Rumberger , M. Rumyantsev , A. Rustamov , M. Rybczynski , A. Rybicki , S. Sadhu , A. Sadovsky , K. Schmidt , I. Selyuzhenkov , A. Yu. Seryakov , P. Seyboth , M. Słodkowski , P. Staszel , G. Stefanek , J. Stepaniak , M. Strikhanov , H. Ströbele , T. Šuša , A. Taranenko , A. Tefelska , D. Tefelski , V. Tereshchenko , A. Toia , R. Tsenov , L. Turko , R. Ulrich , M. Unger , D. Uzhva , F. F. Valiev , D. Veberič , V. V. Vechernin , A. Wickremasinghe , K. Wojcik , O. Wyszyński , A. Zaitsev , E. D. Zimmerman , R. Zwaska

Multiplicity fluctuations in limited segments of momentum space are calculated for a classical pion gas within the statistical model. Results for the grand canonical, canonical, and micro-canonical ensemble are obtained, compared and…

Nuclear Theory · Physics 2008-11-26 Michael Hauer

Measurements of multiplicity and transverse momentum fluctuations of charged particles were performed in inelastic p+p interactions at 20, 31, 40, 80 and 158 GeV/c beam momentum. Results for the scaled variance of the multiplicity…

High Energy Physics - Experiment · Physics 2016-12-01 SHINE Collaboration , A. Aduszkiewicz , Y. Ali , E. Andronov , T. Anticic , N. Antoniou , B. Baatar , F. Bay , A. Blondel , J. Blumer , M. Bogomilov , A. Bravar , J. Brzychczyk , S. A. Bunyatov , O. Busygina , P. Christakoglou , M. Cirkovic , T. Czopowicz , N. Davis , S. Debieux , H. Dembinski , M. Deveaux , F. Diakonos , S. Di Luise , W. Dominik , J. Dumarchez , K. Dynowski , R. Engel , A. Ereditato , G. A. Feofilov , Z. Fodor , A. Garibov , M. Gazdzicki , M. Golubeva , K. Grebieszkow , A. Grzeszczuk , F. Guber , A. Haesler , T. Hasegawa , A. Herve , M. Hierholzer , S. Igolkin , A. Ivashkin , K. Kadija , A. Kapoyannis , E. Kaptur , J. Kisiel , T. Kobayashi , V. I. Kolesnikov , D. Kolev , V. P. Kondratiev , A. Korzenev , K. Kowalik , S. Kowalski , M. Koziel , A. Krasnoperov , M. Kuich , A. Kurepin , D. Larsen , A. Laszlo , M. Lewicki , V. V. Lyubushkin , M. Mackowiak-Pawlowska , B. Maksiak , A. I. Malakhov , D. Manic , A. Marcinek , K. Marton , H. -J. Mathes , T. Matulewicz , V. Matveev , G. L. Melkumov , S. Morozov , S. Mrowczynski , T. Nakadaira , M. Naskret , M. Nirkko , K. Nishikawa , A. D. Panagiotou , M. Pavin , O. Petukhov , C. Pistillo , R. Planeta , B. A. Popov , M. Posiadala , S. Pulawski , J. Puzovic , W. Rauch , M. Ravonel , A. Redij , R. Renfordt , E. Richter-Was , A. Robert , D. Rohrich , E. Rondio , M. Roth , A. Rubbia , A. Rustamov , M. Rybczynski , A. Sadovsky , K. Sakashita , R. Sarnecki , K. Schmidt , T. Sekiguchi , A. Seryakov , P. Seyboth , D. Sgalaberna , M. Shibata , M. Slodkowski , P. Staszel , G. Stefanek , J. Stepaniak , H. Strobele , T. Susa , M. Szuba , M. Tada , A. Tefelska , D. Tefelski , V. Tereshchenko , R. Tsenov , L. Turko , R. Ulrich , M. Unger , M. Vassiliou , D. Veberic , V. V. Vechernin , G. Vesztergombi , L. Vinogradov , A. Wilczek , Z. Wlodarczyk , A. Wojtaszek-Szwarc , O. Wyszynski , L. Zambelli