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Related papers: More uses for Thermal Models

200 papers

We present a comprehensive mathematical model and experimental measurements for the evolution of a trapped particle ensemble driven by collisions with a room-temperature background vapor. The model accommodates any trap geometry, confining…

Atomic Physics · Physics 2024-05-30 Avinash Deshmukh , Riley A. Stewart , Pinrui Shen , James L. Booth , Kirk W. Madison

We discuss the production of light nuclei in heavy ion collisions within a multiple freezeout scenario. Thermal parameters extracted from the fits to the observed hadron yields are used to predict the multiplicities of light nuclei. Ratios…

Nuclear Theory · Physics 2014-11-07 Sandeep Chatterjee , Bedangadas Mohanty

The yields of light elements ($Z=1,2$) obtained from spontaneous ternary fission of $^{252}$Cf are treated within a nonequilibrium approach, and the contribution of unstable nuclei and excited bound states is taken into account. These light…

Nuclear Theory · Physics 2020-10-28 G. Röpke , J. B. Natowitz , H. Pais

We investigate an effective relativistic equation of state at finite values of temperature and baryon chemical potential with the inclusion of the full octet of baryons, the Delta-isobars and the lightest pseudoscalar and vector meson…

Nuclear Theory · Physics 2013-11-14 A. Lavagno

Measurements at RHIC and the LHC show strongly enhanced baryon-to-meson yield ratios at intermediate transverse momenta ($p_{\rm{T}}$) in high-energy nuclear collisions compared to $p$+$p$ baseline. This enhancement is attributed to the…

Nuclear Experiment · Physics 2023-12-19 Gabriel Dale-Gau

The particle production and their ratios for $\pi$, $K$, $p$, and $\Lambda$ are studied in Pb + Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV based on a blast-wave model with thermal equilibrium mechanism. The transverse momentum spectra of…

Nuclear Theory · Physics 2014-04-02 S. Zhang , L. X. Han , Y. G. Ma , J. H. Chen , C. Zhong

We examined the transverse momentum spectra of various identified particles, across different multiplicity classes in proton-proton collisions at a center-of-mass energy of $\sqrt{s}$ = 7 TeV. Utilizing the Tsallis and Hagedorn models,…

Values of the ratios in the mid-rapidity yields of anti-Lambda/Lambda = 0.71 +/- 0.01(stat.) +/- 0.04(sys.), anti-Xi+/Xi- = 0.83 +/- 0.04(stat.) +/- 0.05 (sys.), anti-Omega+/Omega- = 0.95 +/- 0.15(stat) +/- 0.05(sys.) and K+/K- 1.092 +/-…

Nuclear Experiment · Physics 2008-11-26 J. Adams

We discuss the usage of measurements of the stability of nature's fundamental constants coming from comparisons between atomic clocks as a means to constrain coupled variations of these constants in a broad class of unification scenarios.…

High Energy Physics - Phenomenology · Physics 2012-12-19 M. C. Ferreira , M. D. Julião , C. J. A. P. Martins , A. M. R. V. L. Monteiro

We describe a new method to incorporate thermonuclear heating in the envelope of accreting neutron star into long term simulations of their thermal evolution. We obtain boundary conditions for the heat exchange between the envelope and the…

High Energy Astrophysical Phenomena · Physics 2025-09-01 Martin Nava-Callejas , Dany Page , Yuri Cavecchi

This paper presents a new analysis of the thermal emission from the neutron star surface to constrain the dense matter equation of state. It is based on the use of a Markov-Chain Monte Carlo algorithm combined with an empirical…

High Energy Astrophysical Phenomena · Physics 2020-01-08 N. Baillot d'Etivaux , S. Guillot , J. Margueron , N. A. Webb , M. Catelan , A. Reisenegger

We analyze hadro-chemical freeze-out in central Pb+Pb collisions at CERN SPS energies, employing the hybrid version of UrQMD which models hadronization by the Cooper-Frye mechanism, and matches to a final hadron-resonance cascade. We fit…

High Energy Physics - Phenomenology · Physics 2012-04-24 F. Becattini , M. Bleicher , T. Kollegger , M. Mitrovski , T. Schuster , R. Stock

We examine the majorization properties of general thermal-like mixed states depending on a set of parameters. Sufficient conditions which ensure the increase in mixedness, and hence of any associated entropic form, when these parameters are…

Statistical Mechanics · Physics 2015-05-13 N. Canosa , R. Rossignoli , M. Portesi

In this work we provide a new, well-controlled expansion of the equation of state of dense matter from zero to finite temperatures ($T$) while covering a wide range of charge fractions ($Y_Q$), from pure neutron to isospin symmetric nuclear…

High Energy Astrophysical Phenomena · Physics 2025-06-06 Debora Mroczek , Nanxi Yao , Katherine Zine , Jacquelyn Noronha-Hostler , Liam Brodie , Veronica Dexheimer , Alexander Haber , Elias R. Most

We describe how the abundance and distribution of hyperon resonances can be used to probe freeze-out conditions. We demonstrate that resonance yields allow us to measure the time scales of chemical and thermal freeze-outs. This should…

High Energy Physics - Phenomenology · Physics 2008-11-26 G. Torrieri , J. Rafelski

The canonical thermodynamic model has been used frequently to describe the disassembly of hot nuclear matter consisting of neutrons and protons. Such matter is formed in intermediate energy heavy ion collisions. Here we extend the method to…

Nuclear Theory · Physics 2009-05-13 S. Das Gupta

Recent theoretical predictions hint at an implementation of a superradiant laser based on narrow optical clock transitions by using a filtered thermal beam at high density. Corresponding numerical studies give encouraging results but the…

Atomic Physics · Physics 2023-08-11 Martin Fasser , Christoph Hotter , David Plankensteiner , Helmut Ritsch

A common paradigm used in the construction of equations of state is to decompose the thermodynamics into a superposition of three terms: a static-lattice cold curve, a contribution from the thermal motion of the nuclei, and a contribution…

Computational Physics · Physics 2018-08-01 Sarah C. Burnett , Daniel G. Sheppard , Kevin G. Honnell , Travis Sjostrom

In this work, ML models were used to predict the plasma temperature using the dataset obtained by implementing the CR-model for Na-like Krypton. The models included in the study are: Linear Regression, Lasso Regression, Support Vector…

Plasma Physics · Physics 2025-05-05 Ashwini Malviya

The lepton pair production rate at finite temperature and at next-to-leading-order (NLO) is calculated for quark-gluon plasma at non-zero baryon density. Yields are obtained using a (3+1)D multicomponent simulation capable of reproducing…

Nuclear Theory · Physics 2023-12-19 Jessica Churchill , Lipei Du , Bailey Forster , Han Gao , Greg Jackson , Sangyong Jeon , Charles Gale
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