How to acknowledge MUSES code

If you use MUSES code or data in your research and publications, please include the following text:

This work was supported in part by the National Science Foundation (NSF) within the framework of the MUSES collaboration, under grant number OAC-2103680.

Publication Policy for MUSES Collaboration

This document establishes the publication policy for the Modular Unified Solver of the Equation of State (MUSES) collaboration, which was initiated through NSF CSSI funding.


This policy distinguishes between two types of publications: collaboration-wide publications and short-author publications.

Collaboration-wide publications are those that a simple majority (>50%) of the collaboration participates in. Topics covered by collaboration-wide publications include (but are not limited to) review-like papers, MUSES cyberinfrastructure deployment, and global analysis of data or physics that employs the calculation engine and multiple modules.

Short-author publications are those pursued by small groups of researchers (less than <50%) at one or more institutions. Topics covered by short-author publications include module release papers (e.g. the release of the CMF module that includes the equations, pseudocode, and benchmark checks), focused physics efforts that use the MUSES cyberinfrastructure (e.g. the Bayesian analysis anticipated from the holography code), specific module development papers, and analysis of data that employs only one or a few modules.


The publication policy of the MUSES collaboration is the following:

  • All collaboration-wide publications will be authored by all members of the collaboration that have earned authorship status. The order of the authors in collaboration-wide publications will be determined by the MUSES executive committee.
  • All short-author publications will be authored by the subset of the collaboration that has earned authorship status and that has participated directly in the research, including either physics research or computational development. The authors of short-author publications will be determined by the subset who authors them.

Authorship status is available to all members of the collaboration who demonstrate involvement in the development of the MUSES cyberinfrastructure. Members of the collaboration demonstrate involvement by contributing to the physics or the computational work of the cyberinfrastructure (either through calculations and coding or through advising), attending consistently at least one set of weekly meetings, and attending at least one collaboration meeting or summer school every 3 years.

For all papers, potential authors (be it collaboration-wide or short-author) will be given the option to opt out from authorship on a publication by publication basis. For short-author papers, when in doubt about the degree of participation of a given member, the member will be offered authorship and she/he will use their best ethical judgement to decide whether to accept authorship or not.


This policy remains in place while scientists remain in the MUSES collaboration and while the MUSES collaborations lasts (even if this exceeds the duration of any funding to support the collaboration). Scientists that leave the MUSES collaboration during the writing period of any publication (be it collaboration-wide or short-author) retain the right to be considered potential authors for those publications. If new MUSES efforts (be it physics-focused or computational) are started after a scientist leaves the collaboration, then this publication is no longer applicable to them, and they forfeit the right to earn author status, as described in this policy.


All members of the MUSES collaboration ( agree to abide by this policy. Violations of this policy should be immediately reported to the MUSES executive committee, who will then research the incident. MUSES members found to be in violation of the policy by the executive committee will be subject to disciplinary action, which may range from simple requests to increase the author list of a given paper (provided the paper has not yet been published) to expulsion from the collaboration (as a last resort for extreme cases).

List of publications

  • Finite density QCD equation of state: critical point and lattice-based T′-expansion

    Submitted to ArXiV on February 13, 2024


    Finite density QCD equation of state: critical point and lattice-based T′-expansion


    Micheal Kahangirwe, Steffen A. Bass, Elena Bratkovskaya, Johannes Jahan, Pierre Moreau, Paolo Parotto, Damien Price, Claudia Ratti, Olga Soloveva, Mikhail Stephanov


    We present a novel construction of the QCD equation of state (EoS) at finite baryon density. Our work combines a recently proposed resummation scheme for lattice QCD results with the universal critical behavior at the QCD critical point. This allows us to obtain a family of equations of state in the range 0≤μB≤700 MeV and 25≤T≤800 MeV, which match lattice QCD results near μB=0 while featuring a critical point in the 3D Ising model universality class. The position of the critical point can be chosen within the range accessible to beam-energy scan heavy-ion collision experiments. The strength of the singularity and the shape of the critical region are parameterized using a standard parameter set. We impose stability and causality constraints and discuss the available ranges of critical point parameter choices, finding that they extend beyond earlier parametric QCD EoS proposals. We present thermodynamic observables, including baryon density, pressure, entropy density, energy density, baryon susceptibility and speed of sound, that cover a wide range in the QCD phase diagram relevant for experimental exploration.


        author = "Kahangirwe, Micheal and Bass, Steffen A. and Bratkovskaya, Elena and Jahan, Johannes and Moreau, Pierre and Parotto, Paolo and Price, Damien and Ratti, Claudia and Soloveva, Olga and Stephanov, Mikhail",
        title = "{Finite density QCD equation of state: critical point and lattice-based $T'$-expansion}",
        eprint = "2402.08636",
        archivePrefix = "arXiv",
        primaryClass = "nucl-th",
        month = "2",
        year = "2024"

  • Thermodynamics of an updated hadronic resonance list and influence on hadronic transport

    Submitted to arXiv on Sep 4 2023


    Thermodynamics of an updated hadronic resonance list and influence on hadronic transport


    Jordi Salinas San Martín, Renan Hirayama, Jan Hammelmann, Jamie M. Karthein, Paolo Parotto, Jacquelyn Noronha-Hostler, Claudia Ratti, Hannah Elfner


    Hadron lists based on experimental studies summarized by the Particle Data Group (PDG) are a crucial input for the equation of state and thermal models used in the study of strongly-interacting matter produced in heavy-ion collisions. Modeling of these strongly-interacting systems is carried out via hydrodynamical simulations, which are followed by hadronic transport codes that also require a hadronic list as input. To remain consistent throughout the different stages of modeling of a heavy-ion collision, the same hadron list with its corresponding decays must be used at each step. It has been shown that even the most uncertain states listed in the PDG from 2016 are required to reproduce partial pressures and susceptibilities from Lattice Quantum Chromodynamics with the hadronic list known as the PDG2016+. Here, we update the hadronic list for use in heavy-ion collision modeling by including the latest experimental information for all states listed in the Particle Data Booklet in 2021. We then compare our new list, called PDG2021+, to Lattice Quantum Chromodynamics results and find that it achieves even better agreement with the first principles calculations than the PDG2016+ list. Furthermore, we develop a novel scheme based on intermediate decay channels that allows for only binary decays, such that PDG2021+ will be compatible with the hadronic transport framework SMASH. Finally, we use these results to make comparisons to experimental data and discuss the impact on particle yields and spectra.


        author = "Salinas San Mart\'\i{}n, Jordi and Hirayama, Renan and Hammelmann, Jan and Karthein, Jamie M. and Parotto, Paolo and Noronha-Hostler, Jacquelyn and Ratti, Claudia and Elfner, Hannah",
        title = "{Thermodynamics of an updated hadronic resonance list and influence on hadronic transport}",
        eprint = "2309.01737",
        archivePrefix = "arXiv",
        primaryClass = "nucl-th",
        month = "9",
        year = "2023"

  • Theoretical and Experimental Constraints for the Equation of State of Dense and Hot Matter

    Submitted to arXiv on March 29 2023


    Theoretical and Experimental Constraints for the Equation of State of Dense and Hot Matter


    Rajesh Kumar, Veronica Dexheimer, Johannes Jahan, Jorge Noronha, Jacquelyn Noronha-Hostler, Claudia Ratti, Nico Yunes, Angel Rodrigo Nava Acuna, Mark Alford, Mahmudul Hasan Anik, Katerina Chatziioannou, Hsin-Yu Chen, Alexander Clevinger, Carlos Conde, Nikolas Cruz Camacho, Travis Dore, Christian Drischler, Hannah Elfner, Reed Essick, David Friedenberg, Suprovo Ghosh, Joaquin Grefa, Roland Haas, Jan Hammelmann, Steven Harris, Carl-Johan Haster, Tetsuo Hatsuda, Mauricio Hippert, Renan Hirayama, Jeremy W. Holt, Micheal Kahangirwe, Jamie Karthein, Toru Kojo, Philippe Landry, Zidu Lin, Matthew Luzum, T. Andrew Manning, Jordi Salinas San Martin, Cole Miller, Elias Roland Most, Debora Mroczek, Azwinndini Muronga, Nicolas Patino, Jeffrey Peterson, Christopher Plumberg, Damien Price, Constanca Providencia, Romulo Rougemont, Satyajit Roy, Hitansh Shah, Stuart Shapiro, Andrew W. Steiner, Michael Strickland, Hung Tan, Hajime Togashi, Israel Portillo Vazquez, Pengsheng Wen, Ziyuan Zhang (MUSES Collaboration)


    This review aims at providing an extensive discussion of modern constraints relevant for dense and hot strongly interacting matter. It includes theoretical first-principle results from lattice and perturbative QCD, as well as chiral effective field theory results. From the experimental side, it includes heavy-ion collision and low-energy nuclear physics results, as well as observations from neutron stars and their mergers. The validity of different constraints, concerning specific conditions and ranges of applicability, is also provided


          title={Theoretical and Experimental Constraints for the Equation of State of Dense and Hot Matter}, 
          author={Rajesh Kumar and Veronica Dexheimer and Johannes Jahan and Jorge Noronha and Jacquelyn Noronha-Hostler and Claudia Ratti and Nico Yunes and Angel Rodrigo Nava Acuna and Mark Alford and Mahmudul Hasan Anik and Katerina Chatziioannou and Hsin-Yu Chen and Alexander Clevinger and Carlos Conde and Nikolas Cruz Camacho and Travis Dore and Christian Drischler and Hannah Elfner and Reed Essick and David Friedenberg and Suprovo Ghosh and Joaquin Grefa and Roland Haas and Jan Hammelmann and Steven Harris and Carl-Johan Haster and Tetsuo Hatsuda and Mauricio Hippert and Renan Hirayama and Jeremy W. Holt and Micheal Kahangirwe and Jamie Karthein and Toru Kojo and Philippe Landry and Zidu Lin and Matthew Luzum and T. Andrew Manning and Jordi Salinas San Martin and Cole Miller and Elias Roland Most and Debora Mroczek and Azwinndini Muronga and Nicolas Patino and Jeffrey Peterson and Christopher Plumberg and Damien Price and Constanca Providencia and Romulo Rougemont and Satyajit Roy and Hitansh Shah and Stuart Shapiro and Andrew W. Steiner and Michael Strickland and Hung Tan and Hajime Togashi and Israel Portillo Vazquez and Pengsheng Wen and Ziyuan Zhang},

  • Resummed lattice QCD equation of state at finite baryon density: strangeness neutrality and beyond

    Submitted to ArXiV on February 11 2022, Phys.Rev.Lett. 126 (2021) 23, 232001


    Resummed lattice QCD equation of state at finite baryon density: strangeness neutrality and beyond


    Szabolcs Borsanyi, Zoltan Fodor, Jana N. Guenther, Ruben Kara, Paolo Parotto, Attila Pasztor, Claudia Ratti, Kalman K. Szabo


    We calculate a resummed equation of state with lattice QCD simulations at imaginary chemical potentials. This work presents a generalization of the scheme introduced in 2102.06660 to the case of non-zero μS, focusing on the line of strangeness neutrality. We present results up to μB/T≤3.5 on the strangeness neutral line ⟨S⟩=0 in the temperature range 130\ MeV≤T≤280~MeV. We also extrapolate the finite baryon density equation of state to small non-zero values of the strangeness-to-baryon ratio R=⟨S⟩/⟨B⟩. We perform a continuum extrapolation using lattice simulations of the 4stout-improved staggered action with 8, 10, 12 and 16 timeslices.


        author = "Bors\'anyi, S. and Fodor, Z. and Guenther, J. N. and Kara, R. and Katz, S. D. and Parotto, P. and P\'asztor, A. and Ratti, C. and Szab\'o, K. K.",
        title = "{Lattice QCD equation of state at finite chemical potential from an alternative expansion scheme}",
        eprint = "2102.06660",
        archivePrefix = "arXiv",
        primaryClass = "hep-lat",
        doi = "10.1103/PhysRevLett.126.232001",
        journal = "Phys. Rev. Lett.",
        volume = "126",
        number = "23",
        pages = "232001",
        year = "2021"