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We investigate the possibility to find an ultraviolet completion of the simple extensions of the Standard Model where baryon number is a local symmetry. In the context of such theories one can understand the spontaneous breaking of baryon…

High Energy Physics - Phenomenology · Physics 2017-03-03 Pavel Fileviez Perez , Sebastian Ohmer

We discuss the non-zero baryon number formulation of QCD in the quenched limit at finite temperature. This describes the thermodynamics of gluons in the background of static quark sources. Although a sign problem remains in this theory, our…

High Energy Physics - Lattice · Physics 2015-06-25 O. Kaczmarek with J. Engels , F. Karsch , E. Laermann

The baryon fraction in galaxy clusters is one of the most direct way to constrain $\omo$. The baryonic fraction is estimated to be in the range fb = (0.15 - 0 .20) h^{-3/2} which is several times higher than expected from the observed light…

Astrophysics · Physics 2016-08-30 R. Sadat , A. Blanchard

We investigate the fluctuations of the net-baryon number near the critical point of the liquid-gas phase transition. We use the parity doublet model in the mean-field approximation fixed to the zero-temperature properties of nuclear matter…

Nuclear Theory · Physics 2025-08-06 Michał Marczenko , Krzysztof Redlich , Chihiro Sasaki

We summarize our results on baryon number fluctuations at nonzero temperature and chemical potential. They are obtained from solutions of a coupled set of Dyson-Schwinger equations for the quark and gluon propagators of QCD in Landau gauge…

High Energy Physics - Phenomenology · Physics 2020-11-26 Philipp Isserstedt , Michael Buballa , Christian S. Fischer , Pascal J. Gunkel

We present a lattice study of net-baryon number fluctuations in (2+1)-flavor QCD. The results are based on a Taylor expansion of the pressure with respect to the baryon chemical potential. We calculate higher moments of the net-baryon…

High Energy Physics - Lattice · Physics 2011-03-10 Christian Schmidt

The appearance of large, none-Gaussian cumulants of the baryon number distribution is commonly discussed as a signal for the QCD critical point. We review the status of the Taylor expansion of cumulant ratios of baryon number fluctuations…

High Energy Physics - Lattice · Physics 2021-11-29 C. Schmidt , J. Goswami , G. Nicotra , F. Ziesché , P. Dimopoulos , F. Di Renzo , S. Singh , K. Zambello

The baryon-number density formed in relativistic nuclear collisions, versus the chemical potential of the freeze-out states, is systematically studied on the basis of existing measurements. A remarkable power-law behaviour of the…

High Energy Physics - Phenomenology · Physics 2010-04-06 N. G. Antoniou , F. K. Diakonos , A. S. Kapoyannis

We study the net-baryon production at forward rapidities within the Color Glass Condensate paradigm. At high energy regime, the leading baryon production mechanism is shown to change from recombination to independent fragmentation. The…

High Energy Physics - Phenomenology · Physics 2020-03-23 G. Karapetyan

Using recent results on higher order cumulants of conserved charge fluctuations from lattice QCD, we construct mean, variance, skewness, kurtosis, hyper-skewness and hyper-kurtosis of net-baryon number distributions for small baryon…

High Energy Physics - Lattice · Physics 2021-02-03 Dennis Bollweg , Frithjof Karsch , Swagato Mukherjee , Christian Schmidt

We study the mean-field thermodynamics and the characteristics of the net-baryon number fluctuations at the phase boundaries for the chiral and deconfinement transitions in the Hybrid Quark-Meson-Nucleon model. The chiral dynamics is…

High Energy Physics - Phenomenology · Physics 2018-02-16 Michał Marczenko , Chihiro Sasaki

Baryon number fluctuations are sensitive to the QCD phase transition and QCD critical point. According to the Feynman rules of finite-temperature field theory, we calculated various order moments and cumulants of the baryon number…

Nuclear Theory · Physics 2017-04-07 Ameng Zhao , Xiaofeng Luo , Hongshi Zong

We present results for fluctuations of the baryon number for QCD at nonzero temperature and chemical potential. These are extracted from solutions to a coupled set of truncated Dyson-Schwinger equations for the quark and gluon propagators…

High Energy Physics - Phenomenology · Physics 2021-11-01 Philipp Isserstedt , Michael Buballa , Christian S. Fischer , Pascal J. Gunkel

Event-by-event fluctuations of the baryon number, which is mostly carried by protons and neutrons, in relativistic heavy-ion collisions provide a sensitive probe for locating the conjectured critical point in the quantum chromodynamics…

Nuclear Theory · Physics 2025-12-24 Yi-Heng Feng , Che Ming Ko , Xiaofeng Luo , Yu-Gang Ma , Kai-Jia Sun , Song Zhang

We deal with a sequence of integer-valued random variables $\{Z_N\}_{N=1}^{\infty}$ which is related to restricted partitions of positive integers. We observe that $Z_N=X_1+ \ldots + X_N$ for independent and bounded random variables…

Probability · Mathematics 2019-01-15 J. Stoyanov , C. Vignat

We give sufficient conditions for the number rigidity of a translation invariant or periodic point process on $\mathbb{R}^d$, where $d=1,2$. That is, the probability distribution of the number of particles in a bounded domain $\Lambda…

Probability · Mathematics 2016-11-23 Subhro Ghosh , Joel Lebowitz

In this work we study the consequences of a longitudinal Bjorken expansion and a Hubble-like temperature cooling scenario on a 1+1D non-linear model of the diffusive dynamics of fluctuations in the net-baryon density. The equilibrium…

Nuclear Theory · Physics 2023-02-01 Grégoire Pihan , Marcus Bluhm , Masakiyo Kitazawa , Taklit Sami , Marlene Nahrgang

The correlation between baryon number and strangeness is used to discern the nature of the deconfined matter produced at vanishing chemical potential in high-energy nuclear collisions at the BNL RHIC. Comparisons of results of various…

Nuclear Theory · Physics 2009-11-11 A. Majumder , V. Koch , J. Randrup

The thesis is devoted to the problem of colour confinement in the non-Abelian Yang-Mills theory (gluon part of Quantum Chromodynamics). A generalisation of the 3-dimensional Fock-Schwinger gauge is proposed where the Gauss law constraint is…

Statistical Mechanics · Physics 2024-05-24 E. G. Timoshenko

We consider the possible phases of a non-Abelian gauge theory, as a function of temperature and quark chemical potential, when both the number of colors and flavors is very large. Generally, a large number of flavors washes out deconfining…

High Energy Physics - Phenomenology · Physics 2008-11-26 Yoshimasa Hidaka , Larry D. McLerran , Robert D. Pisarski