Johannès Jahan

ORCID: 0000-0002-4557-4652
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About
Contact & Profiles
Research Areas
  • High-Energy Particle Collisions Research
  • Radiomics and Machine Learning in Medical Imaging
  • Particle physics theoretical and experimental studies
  • Quantum Chromodynamics and Particle Interactions
  • Nuclear physics research studies
  • Advanced Thermodynamics and Statistical Mechanics
  • Particle Detector Development and Performance
  • Nuclear Physics and Applications
  • Pulsars and Gravitational Waves Research
  • Astronomical and nuclear sciences
  • Healthcare Systems and Practices
  • Quantum, superfluid, helium dynamics
  • Electron and X-Ray Spectroscopy Techniques
  • High-pressure geophysics and materials
  • Advancements in Photolithography Techniques
  • Radiation Detection and Scintillator Technologies
  • Stochastic processes and statistical mechanics
  • Astrophysics and Cosmic Phenomena
  • Nuclear reactor physics and engineering
  • Cold Fusion and Nuclear Reactions
  • Theoretical and Computational Physics
  • Scientific Computing and Data Management
  • Business Process Modeling and Analysis
  • Advanced Data Storage Technologies
  • Laser-Matter Interactions and Applications

University of Houston
2023-2025

Laboratoire de Physique Subatomique et des Technologies Associées
2017-2024

IMT Atlantique
2017-2024

Centre National de la Recherche Scientifique
2018-2024

Nantes Université
2021-2024

GSI Helmholtz Centre for Heavy Ion Research
2023

The Ohio State University
2023

Campbell Collaboration
2023

Institut National de Physique Nucléaire et de Physique des Particules
2021

Abstract 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 perturbative QCD, as well chiral effective field theory results. From the experimental side, it heavy-ion collision low-energy nuclear physics results, observations neutron stars their mergers. The validity different constraints, concerning specific conditions ranges applicability, is also provided.

10.1007/s41114-024-00049-6 article EN cc-by Living Reviews in Relativity 2024-06-05

We present a novel construction of the QCD equation state (EoS) at finite baryon density. Our work combines recently proposed resummation scheme for lattice results with universal critical behavior point. This allows us to obtain family equations in range $0\ensuremath{\le}{\ensuremath{\mu}}_{B}\ensuremath{\le}700\text{ }\text{ }\mathrm{MeV}$ and $25\text{ }\mathrm{MeV}\ensuremath{\le}T\ensuremath{\le}800\text{ }\mathrm{MeV}$, which match near ${\ensuremath{\mu}}_{B}=0$ while featuring point...

10.1103/physrevd.109.094046 article EN Physical review. D/Physical review. D. 2024-05-29

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 perturbative QCD, as well chiral effective field theory results. From the experimental side, it heavy-ion collision low-energy nuclear physics results, observations neutron stars their mergers. The validity different constraints, concerning specific conditions ranges applicability, is also provided.

10.48550/arxiv.2303.17021 preprint EN other-oa arXiv (Cornell University) 2023-01-01

The EPOS4 project is an attempt to construct a realistic model for describing relativistic collisions of different systems, from proton-proton (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mrow><a:mi>p</a:mi><a:mi>p</a:mi></a:mrow></a:math>) nucleus-nucleus (<b:math xmlns:b="http://www.w3.org/1998/Math/MathML"><b:mrow><b:mi>A</b:mi><b:mi>A</b:mi></b:mrow></b:math>), at energies several TeV per nucleon down GeV. We argue that parallel scattering formalism (as in EPOS4) relevant...

10.1103/physrevc.111.014903 article EN cc-by Physical review. C 2025-01-06

Since the release of 2015 Long Range Plan in Nuclear Physics, major events have occurred that reshaped our understanding quantum chromodynamics (QCD) and nuclear matter at large densities, out equilibrium. The US community has an opportunity to capitalize on advances astrophysical observations experiments engage interdisciplinary effort theory dense baryonic connects low- high-energy physics, astrophysics, gravitational waves data science

10.48550/arxiv.2211.02224 preprint EN other-oa arXiv (Cornell University) 2022-01-01

Although calculations of QCD thermodynamics from first-principle lattice simulations are limited to zero net-density due the fermion sign problem, several methods have been developed extend equation state (EoS) finite values B , Q S chemical potentials. Taylor expansion around µ i = 0 ( ) enables cover with confidence region up / T &lt; 2.5. Recently, a new method has compute 2D EoS in plane. It was constructed through -expansion scheme (TExS), based on resummation expansion, and is trusted...

10.1051/epjconf/202531606002 article EN cc-by EPJ Web of Conferences 2025-01-01

Exploring the equation of state dense matter is an essential part interpreting observable properties neutron stars. We present here first results for in zero-temperature limit generated by MUSES Calculation Engine, a composable workflow management system that orchestrates calculation and data processing stages comprising collection software modules designed within framework. The presented this work calculate equations using algorithms spanning three different theories/models: (1) Crust...

10.48550/arxiv.2502.07902 preprint EN arXiv (Cornell University) 2025-02-11

We present a novel construction of the QCD equation state (EoS) at finite baryon density. Our work combines recently proposed resummation scheme for lattice results with universal critical behavior point. This allows us to obtain family equations in range $0 \leq \mu_B 700$ MeV and 25 $\leq T 800$ MeV, which match near $\mu_B=0$ while featuring point 3D Ising model universality class. The position can be chosen within accessible beam-energy scan heavy-ion collision experiments. strength...

10.48550/arxiv.2402.08636 preprint EN arXiv (Cornell University) 2024-02-13

Different families of geometric shapes, derived mainly from lemniscatoids, are proposed to describe ground and excited states leptodermous distributions nuclear matter. The transition one spherical or ellipsoidal nucleus several nuclei vice versa (in the decay entrance channels reactions: fission, fusion, fragmentation) is particularly investigated. characteristics these configurations given, allowing calculations system energy, dynamics reactions, angular distribution fragments.

10.1103/physrevc.95.054610 article EN Physical review. C 2017-05-12

Transitions between different states of matter and their thermodynamic properties are described by the Equation State (EoS). A universal representation EoS quantum chromodynamics for wide range phase diagrams has yet to be determined. The expectation systems undergo various types transitions depending on temperature ($T$), chemical potential (${\ensuremath{\mu}}_{B}$), other features make solving that puzzle challenging. Furthermore, it needs apparent which experimentally measurable...

10.1103/physrevc.108.014905 article EN publisher-specific-oa Physical review. C 2023-07-10

HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not.The documents may come from teaching institutions in France abroad, public private centers.L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de scientifiques niveau recherche, publiés ou non, émanant des établissements d'enseignement recherche français étrangers, laboratoires publics privés. Shapes describing...

10.1088/1402-4896/aad6fb article EN Physica Scripta 2018-07-31

The BEST Collaboration equation of state combining lattice data with the 3D Ising critical point encounters limitations due to truncated Taylor expansion up $\frac{μ_B}{T} \sim 2.5$. This truncation consequently restricts its applicability at high densities. Through a resummation scheme, results have been extended = 3.5$. In this article, we amalgamate these ideas 3D-Ising model, yielding family equations valid $μ_B=700 \text{MeV}$ correct behavior. Our feature tunable parameters, providing...

10.48550/arxiv.2312.11265 preprint EN cc-by-nc-nd arXiv (Cornell University) 2023-01-01

The EPOS4 project is an attempt to construct a realistic model for describing relativistic collisions of different systems, from proton-proton ($pp$) nucleus-nucleus ($AA$), at energies several TeV per nucleon down GeV. We argue that parallel scattering formalism (as in EPOS4) relevant primary scatterings AA above 4 GeV, whereas sequential (cascade) appropriate below. present briefly the basic elements EPOS4, and then investigate heavy ion 62.4 GeV understand how physics changes with energy,...

10.48550/arxiv.2401.11275 preprint EN cc-by arXiv (Cornell University) 2024-01-01

Proxies for cumulants of baryon number $B$, electric charge $Q$ and strangeness $S$ are usually measured in heavy-ion collisions via moments net-number distribution given hadronic species. Since these conserved charges expected to be sensitive the existence a critical point phase diagram nuclear matter, it is crucial ensure that proxies used as substitutes close them possible. Hence, we use EPOS4 framework generate Au+Au at several collision energies RHIC Beam Energy Scan. We compute...

10.48550/arxiv.2403.02306 preprint EN arXiv (Cornell University) 2024-03-04

EPOS 4 is the last version of high-energy collision event generator EPOS, released publicly in 2022. It was delivered with improvements on several aspects, whether about theoretical bases which it relies, how they are handled technically, or regarding user’s interface and data compatibility. This point especially important, as part a commitment to provide widest possible use. In this regard, new output format have been implemented, based HepMC standard libraries. feature enables particular...

10.1051/epjconf/202429505007 article EN cc-by EPJ Web of Conferences 2024-01-01

The BEST Collaboration equation of state combining lattice data with the 3D Ising critical point encounters limitations due to truncated Taylor expansion up μ B / T ~ 2.5. This truncation consequently restricts its applicability at high densities. Through a resummation scheme, results have been extended = 3.5. In this article, we amalgamate these ideas 3D-Ising model, yielding family equations valid 700MeV correct behavior. Our feature tunable parameters, providing stable and causal...

10.1051/epjconf/202429614013 article EN cc-by EPJ Web of Conferences 2024-01-01

Proxies for cumulants of baryon number <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mi>B</a:mi></a:math>, electric charge <b:math xmlns:b="http://www.w3.org/1998/Math/MathML"><b:mi>Q</b:mi></b:math>, and strangeness <c:math xmlns:c="http://www.w3.org/1998/Math/MathML"><c:mi>S</c:mi></c:math> are usually measured in heavy-ion collisions via moments net-number distribution given hadronic species. Since these conserved charges expected to be sensitive the existence a critical point...

10.1103/physrevc.110.035201 article EN cc-by Physical review. C 2024-09-11
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