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We present the centrality dependent measurement of multiplicity and pseudorapidity distributions of charged particles and photons in Au + Au collisions at sqrt{s_NN} = 62.4 GeV. The charged particles and photons are measured in the…

Nuclear Experiment · Physics 2012-08-27 STAR Collaboration

The event-by-event fluctuations of identified particles in ultrarelativistic nucleus-nucleus collisions give information about the state of matter created in these collisions as well as the phase diagram of nuclear matter. In this…

Nuclear Experiment · Physics 2019-01-15 Alice Ohlson

Global observables such as the pseudorapidity distributions of particle multiplicities in the final state are crucial to shed light into the physics processes involved in hadronic collisions. In proton$-$lead (p$-$Pb) collisions at Large…

Nuclear Experiment · Physics 2023-12-15 Abhi Modak

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

Using the `quantum optical approach' we propose a model of multiplicity distributions in high energy collisions based on squeezed coherent states. We show that the k-mode squeezed coherent state is the most general one in describing…

High Energy Physics - Phenomenology · Physics 2007-05-23 Bindu A. Bambah

Proton-proton collisions at new high energies ($\sqrt {s}=$2.36 and 7 TeV) at LHC resulted into a greater mean multiplicities ($<e n >$) of charged particles in the mid-rapidity region than estimated $< n >$s by different models and event…

High Energy Physics - Phenomenology · Physics 2012-02-21 Premomoy Ghosh

This work presents an analysis of event-by-event multiplicity fluctuations as a sensitive tool for diagnosing the state of matter produced in relativistic heavy-ion collisions. Using a modified version of the HIJING Monte Carlo generator,…

High Energy Physics - Phenomenology · Physics 2026-03-12 Y. A. Rusak , L. F. Babichev

The NA61/SHINE experiment aims to discover the critical point of strongly interacting matter and study the properties of the onset of deconfinement. For these goals a scan of the two dimensional phase diagram ($T-\mu_{B}$) is being…

Nuclear Experiment · Physics 2018-07-01 Evgeny Andronov

We study the event-by-event fluctuations of the charged particles and compare the results of different Monte-Carlo Generators (MCG): VNIb, HIJING, HIJING/B${\bar B}$ and RQMD. We find that the $D$-measure can be used to distinguish between…

High Energy Physics - Phenomenology · Physics 2016-09-06 Q. H. Zhang , V. Topor Pop , S. Jeon , C. Gale

The multiplicity dependence of event-by-event fluctuations in mean transverse momentum, $\langle p_{\rm T} \rangle$, of charged particles has been studied in p$-$p collisions at $\sqrt{s}$ = 7 TeV and 13 TeV using the PYTHIA 8 event…

High Energy Physics - Phenomenology · Physics 2023-06-07 Subhadeep Roy , Tulika Tripathy , Sadhana Dash

The scaling rules of the invariant yields and cross sections for hard scattering processes in proton-nucleus ($pA$) and nucleus-nucleus ($AB$) reactions at LHC energies relative to those of nucleon-nucleon $NN$ (isospin averaged $pp$)…

Nuclear Experiment · Physics 2007-05-23 D. d'Enterria

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

A study of multiplicity and pseudorapidity distributions of inclusive photons measured in pp and p$-$Pb collisions at a center-of-mass energy per nucleon$-$nucleon collision of $\sqrt{s_{\rm NN}} = 5.02$ TeV using the ALICE detector in the…

Nuclear Experiment · Physics 2023-10-10 ALICE Collaboration

We developed a Monte Carlo event generator for production of nucleon configurations in complex nuclei consistently including effects of Nucleon-Nucleon (NN) correlations. Our approach is based on the Metropolis search for configurations…

Nuclear Theory · Physics 2013-05-14 M. Alvioli , H. -J. Drescher , M. Strikman

In the framework of the Glauber model as implemented in GLISSANDO 2, we study the fluctuations of flow harmonics in Pb+Pb collisions at the LHC centre-of-mass energy of 2.76 TeV. The model with wounded nucleons and the admixture of binary…

Nuclear Theory · Physics 2016-05-25 Maciej Rybczynski , Wojciech Broniowski

The fact that quark-quark, quark-gluon and gluon-gluon interactions are different sources of particle production in proton-proton collision at high energy is investigated in this work. The variation of the multiplicity and pseudo-rapidity…

High Energy Physics - Phenomenology · Physics 2015-07-21 F. H. Sawy , M. T. Ghoneim , M. T. Hussein

I present a brief review of the existing models for particle multiplicity evaluation in heavy ion collisions which are at our disposal in the form of Monte Carlo simulators. Models are classified according to the physical mechanisms with…

High Energy Physics - Phenomenology · Physics 2009-11-10 N. Armesto

The number of particles detected in a nucleus-nucleus collision strongly depends on the impact parameter of the collision. Therefore, multiplicity fluctuations, as well as rapidity correlations of multiplicities, are dominated by impact…

This paper presents the energy dependence of multiplicity and net-electric charge fluctuations in p+p interactions at beam momenta 20, 31, 40, 80, and 158 GeV/c. Results are corrected for the experimental biases and quantified with the use…

High Energy Physics - Experiment · Physics 2025-03-18 NA61/SHINE , : , H. Adhikary , P. Adrich , K. K. Allison , N. Amin , E. V. Andronov , I. -C. Arsene , M. Bajda , Y. Balkova , D. Battaglia , A. Bazgir , S. Bhosale , M. Bielewicz , A. Blondel , M. Bogomilov , Y. Bondar , A. Borucka , A. Brandin , W. Bryliński , J. Brzychczyk , M. Buryakov , A. F. Camino , M. Ćirković , M. Csanád , J. Cybowska , T. Czopowicz , C. Dalmazzone , N. Davis , A. Dmitriev , P. von Doetinchem , W. Dominik , J. Dumarchez , R. Engel , G. A. Feofilov , L. Fields , Z. Fodor , M. Friend , M. Gaździcki , O. Golosov , V. Golovatyuk , M. Golubeva , K. Grebieszkow , F. Guber , S. N. Igolkin , S. Ilieva , A. Ivashkin , A. Izvestnyy , N. Kargin , N. Karpushkin , E. Kashirin , M. Kiełbowicz , V. A. Kireyeu , R. Kolesnikov , D. Kolev , Y. Koshio , V. N. Kovalenko , S. Kowalski , B. Kozłowski , A. Krasnoperov , W. Kucewicz , M. Kuchowicz , M. Kuich , A. Kurepin , A. László , M. Lewicki , G. Lykasov , V. V. Lyubushkin , M. Maćkowiak-Pawłowska , Z. Majka , A. Makhnev , B. Maksiak , A. I. Malakhov , A. Marcinek , A. D. Marino , H. -J. Mathes , T. Matulewicz , V. Matveev , G. L. Melkumov , A. Merzlaya , Ł. Mik , S. Morozov , Y. Nagai , T. Nakadaira , M. Naskręt , S. Nishimori , A. Olivier , V. Ozvenchuk , O. Panova , V. Paolone , O. Petukhov , I. Pidhurskyi , R. Płaneta , P. Podlaski , B. A. Popov , B. Pórfy , D. S. Prokhorova , D. Pszczel , S. Puławski , J. Puzović , R. Renfordt , L. Ren , V. Z. Reyna-Ortiz , D. Röhrich , E. Rondio , M. Roth , Ł. Rozpłochowski , B. T. Rumberger , M. Rumyantsev , A. Rustamov , M. Rybczynski , A. Rybicki , D. Rybka , K. Sakashita , K. Schmidt , A. Yu. Seryakov , P. Seyboth , U. A. Shah , Y. Shiraishi , A. Shukla , M. Słodkowski , P. Staszel , G. Stefanek , J. Stepaniak , M. Strikhanov , Ł. Świderski , J. Szewiński , R. Szukiewicz , A. Taranenko , A. Tefelska , D. Tefelski , V. Tereshchenko , R. Tsenov , L. Turko , T. S. Tveter , M. Unger , M. Urbaniak , F. F. Valiev , D. Veberič , V. V. Vechernin , O. Vitiuk , V. Volkov , A. Wickremasinghe , K. Witek , K. Wójcik , O. Wyszyński , A. Zaitsev , E. Zherebtsova , E. D. Zimmerman , A. Zviagina , R. Zwaska

This paper presents results on multiplicity fluctuations of positively and negatively charged hadrons as well as net-electric charge fluctuations measured in central Ar+Sc interactions at beam momenta 13A, 19A, 30A, 40A, 75A, and 150A…

Nuclear Experiment · Physics 2025-04-01 H. Adhikary , P. Adrich , K. K. Allison , N. Amin , E. V. Andronov , I. -C. Arsene , M. Bajda , Y. Balkova , D. Battaglia , A. Bazgir , S. Bhosale , M. Bielewicz , A. Blondel , M. Bogomilov , Y. Bondar , W. Bryliński , J. Brzychczyk , M. Buryakov , A. F. Camino , Y. D. Chandak , M. Ćirković , M. Csanád , J. Cybowska , T. Czopowicz , C. Dalmazzone , N. Davis , A. Dmitriev , P. von Doetinchem , W. Dominik , J. Dumarchez , R. Engel , G. A. Feofilov , L. Fields , Z. Fodor , M. Friend , M. Gaździcki , K. E. Gollwitzer , O. Golosov , V. Golovatyuk , M. Golubeva , K. Grebieszkow , F. Guber , P. G. Hurh , S. Ilieva , A. Ivashkin , N. Karpushkin , M. Kiełbowicz , V. A. Kireyeu , R. Kolesnikov , D. Kolev , Y. Koshio , S. Kowalski , B. Kozłowski , A. Krasnoperov , W. Kucewicz , M. Kuchowicz , M. Kuich , A. László , M. Lewicki , G. Lykasov , J. R. Lyon , V. V. Lyubushkin , M. Maćkowiak-Pawłowska , B. Maksiak , A. I. Malakhov , A. Marcinek , A. D. Marino , H. -J. Mathes , T. Matulewicz , V. Matveev , G. L. Melkumov , A. Merzlaya , Ł. Mik , S. Morozov , Y. Nagai , T. Nakadaira , S. Nishimori , A. Olivier , V. Ozvenchuk , O. Panova , V. Paolone , I. Pidhurskyi , R. Płaneta , P. Podlaski , B. A. Popov , B. Pórfy , D. S. Prokhorova , D. Pszczel , S. Puławski , L. Ren , V. Z. Reyna Ortiz , D. Röhrich , M. Roth , Ł. Rozpłochowski , M. Rumyantsev , A. Rustamov , M. Rybczynski , A. Rybicki , D. Rybka , K. Sakashita , K. Schmidt , P. Seyboth , U. A. Shah , Y. Shiraishi , A. Shukla , M. Słodkowski , P. Staszel , G. Stefanek , J. Stepaniak , Ł. Świderski , J. Szewiński , R. Szukiewicz , A. Taranenko , A. Tefelska , D. Tefelski , V. Tereshchenko , R. Tsenov , L. Turko , T. S. Tveter , M. Unger , M. Urbaniak , D. Veberič , O. Vitiuk , A. Wickremasinghe , K. Witek , K. Wójcik , O. Wyszyński , A. Zaitsev , E. Zherebtsova , E. D. Zimmerman , A. Zviagina