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We compare lattice QCD results for appropriate combinations of net strangeness fluctuations and their correlations with net baryon number fluctuations with predictions from two hadron resonance gas (HRG) models having different strange…

Recent experimental data support the presence of quark coalescence in heavy ion collisions at RHIC energies. Hadronization of quark matter and hadron formation in heavy ion collisions can be described by the coalescence process, and…

Nuclear Theory · Physics 2008-11-26 G. Hamar , L. L. Zhu , P. Csizmadia , P. Levai

The equation of state of a baryon-symmetric hadronic matter with hard-sphere interactions is studied. It is assumed that mesons are point-like, but baryons and antibaryons have the same hard-core radius rB. Three possibilities are…

Nuclear Theory · Physics 2017-02-15 L. M. Satarov , V. Vovchenko , P. Alba , M. I. Gorenstein , H. Stoecker

In this contribution we discuss the physics of strange hadrons in low energy ($\simeq 1-2 \rm AGeV$) heavy ion collision. In this energy range the relevant strange particle are the kaons and anti-kaons. The most interesting aspect…

Nuclear Theory · Physics 2016-09-08 Volker Koch

We propose a further development of a multi-pomeron exchange model of pp and p$\bar p$ collisions at high energy. The model describes consistently multiplicity, transverse momentum of charged particles and their correlation in wide energy…

High Energy Physics - Phenomenology · Physics 2017-10-25 G. Feofilov , V. Kovalenko , A. Puchkov

The hadron resonance gas (HRG) model and its extensions are often used to describe the hadronic phase of strongly interacting matter. In our work we use lattice-QCD simulations with temporal extents of $N_\tau=8,10$ and $12$ to quantify…

Ratio of the yield of strange hadrons to pions is considered as an important observable in studying the properties of the system produced in relativistic heavy ion collisions. Production of strange hadrons $K, \bar{K}, \Lambda, \Sigma, \Xi$…

Nuclear Theory · Physics 2020-05-13 Purabi Ghosh , Jajati K. Nayak , Sushant K. Singh , Santosh K. Agarwalla

By using electromagnetic form factors predicted by Generalized Chou Yang model (GCYM), we compute root mean square (rms) radii of several hadrons with varying strangeness content (number of strange quarks/anti-quarks) such as (pion, proton,…

High Energy Physics - Phenomenology · Physics 2018-10-09 Sarwat Zahra , Haris Rashid , Fazal-e-Aleem , Talab Hussain , Abrar Ahmad Zafar , Sohail Afzal Tahir

Production of strange hadrons in elementary and heavy-ion reactions is studied with the hadronic transport approach SMASH (Simulating Many Accelerated Strongly-interacting Hadrons). The poorly known branching ratios of the relevant hadronic…

Nuclear Theory · Physics 2019-07-03 V. Steinberg , J. Staudenmaier , D. Oliinychenko , F. Li , Ö. Erkiner , H. Elfner

This Letter presents the first measurement of event-by-event fluctuations of the net number (difference between the particle and antiparticle multiplicities) of multistrange hadrons $\Xi^-$ and $\overline{\Xi}^+$ and its correlation with…

Nuclear Experiment · Physics 2025-02-03 ALICE Collaboration

The results of the WA97 collaboration for strange particle production at mid-rapidity in Pb--Pb collisions at 158 GeV A/c at CERN display a strong strangeness enhancement with system size at mid-rapidity which is dependent on the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Sahal Yacoob , Jean Cleymans

After a brief survey of the remarkable accomplishments of the current heavy ion collision experiments up to 200A GeV, we address in depth the role of strange particle production in the search for new phases of matter in these collisions. In…

Nuclear Theory · Physics 2021-05-24 Johann Rafelski , Jean Letessier , Ahmed Tounsi

The production and dynamics of strange and antistrange hadrons in heavy-ion reactions from $\sqrt{s_{NN}} \approx$ 3 GeV to 200 GeV is analyzed within the Parton-Hadron-String-Dynamics (PHSD) transport model. The PHSD results for strange…

Nuclear Theory · Physics 2016-02-17 Pierre Moreau , Feng Li , Che-Ming Ko , Wolfgang Cassing , Elena Bratkovskaya

Signatures of the formation of a strongly interacting thermalized matter of partons have been observed in nucleus-nucleus, proton-nucleus, and high-multiplicity proton-proton collisions at LHC energies. Strangeness enhancement in such…

High Energy Physics - Phenomenology · Physics 2023-08-21 Ronald Scaria , Suman Deb , Captain R. Singh , Raghunath Sahoo

Two approaches to treat the chemical freeze-out of strange particles in hadron resonance gas model are analyzed. The first one employs their non-equillibration via the usual \gamma_s factor and such a model describes the hadron…

High Energy Physics - Phenomenology · Physics 2015-06-16 K. A. Bugaev , D. R. Oliinychenko , J. Cleymans , A. I. Ivanytskyi , I. N. Mishustin , E. G. Nikonov , V. V. Sagun

Strangeness and baryon enhancement in heavy ion collisions are discussed in the framework of the String Fusion Model. The Monte Carlo version of this model is shown to reasonably reproduce three of the features that have been pointed out as…

High Energy Physics - Phenomenology · Physics 2007-05-23 N. S. Amelin , N. Armesto , C. Pajares , D. Sousa

In this paper we analyze in detail the production of strangeness in proton-proton collisions in the kinematics of large transverse momenta $p_{T}$ of produced hadrons. Using the color dipole framework, we estimated the production…

High Energy Physics - Phenomenology · Physics 2021-08-04 Marat Siddikov , Iván Schmidt

In the present work, we analyze several strange as well as non-strange relative hadronic yields obtained in the ultra-relativistic heavy-ion collisions (URHIC) experiments over a wide range of center-of-mass collision energy…

High Energy Physics - Phenomenology · Physics 2025-05-13 Sameer Ahmad Mir , Iqbal Mohi Ud Din , Nasir Ahmad Rather , Saeed Uddin , M. Farooq Mir

The excess of muons observed in ultra-high-energy cosmic-ray air showers relative to simulation predictions, known as the muon puzzle, provides indirect evidence of our incomplete understanding of high-energy hadronic interactions. An…

High Energy Astrophysical Phenomena · Physics 2026-03-10 Ken Ohashi , Anatoli Fedynitch , Hiroaki Menjo

We use the extended statistical thermal model to describe various hadron rapidity spectra at the highest RHIC energy (200 GeV/A). The model assumes the formation of hot and dense regions moving along the beam axis with increasing…

High Energy Physics - Phenomenology · Physics 2009-11-03 Saeed Uddin , Majhar Ali , Jan Shabir , M. Farooq Mir