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Related papers: Universal Short-Range Repulsion in the Baryon Syst…

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We investigate confinement-induced resonances in a system composed by a tightly trapped ion and a moving atom in a waveguide. We determine the conditions for the appearance of such resonances in a broad region -- from the "long-wavelength"…

Atomic Physics · Physics 2016-08-24 Vladimir S. Melezhik , Antonio Negretti

We present a scheme comprised of a one-dimensional system with repulsive interactions, in which the formation of bound pairs can take place in an easily tunable fashion.By capacitively coupling a primary electronic quantum wire of interest…

Strongly Correlated Electrons · Physics 2020-11-30 Gal Shavit , Yuval Oreg

The paper examines a trapped one-dimensional system of multicomponent spinless fermions that interact with a zero-range two-body potential. We show that when the repulsion between particles is very large the system can be approached…

Prompt gamma-ray burst (GRB) emission requires some mechanism to dissipate an ultrarelativistic jet. Internal shocks or some form of electromagnetic dissipation are candidate mechanisms. Any mechanism needs to answer basic questions, such…

High Energy Astrophysical Phenomena · Physics 2015-05-20 Jonathan C. McKinney , Dmitri A. Uzdensky

In nuclear collisions, a sizable fraction of the available energy is carried away by baryons. As the baryon number is conserved, the net-baryon $B-\bar{B}$ retains information on the energy-momentum carried by the incoming nuclei. A simple…

High Energy Physics - Phenomenology · Physics 2009-09-30 J. Alvarez-Muñiz , R. Conceição , J. Dias de Deus , M. C. Espírito Santo , J. G. Milhano , M. Pimenta

The process of baryon number transfer due to string junction propagation in rapidity space is considered. It leads to a significant effect in the net baryon production in pA collisions at mid-rapidities and an even more significant effect…

High Energy Physics - Phenomenology · Physics 2012-07-30 F. W. Bopp , Yu. M. Shabelski

The short-range properties of the KN interaction are studied within the meson-exchange model of the Juelich group. Specifically, dynamical explanations for the phenomenological short-range repulsion, required in this model for achieving…

Nuclear Theory · Physics 2009-11-07 D. Hadjimichef , J. Haidenbauer , G. Krein

We determine baryon-baryon bound states in 3+1 dimensional ${\rm SU}(3)$ lattice QCD with two flavors, $4\times 4$ spin matrices, and in an imaginary time formulation. For small hopping parameter, $\kappa>0$, and large glueball mass (strong…

High Energy Physics - Lattice · Physics 2007-05-23 Paulo A. Faria da Veiga , Michael O'Carroll

We simultaneously incorporate two common extensions of the hadron resonance gas model, namely the addition of extra, unconfirmed resonances to the particle list and the excluded volume repulsive interactions. We emphasize the complementary…

Nuclear Theory · Physics 2021-11-09 Jamie M. Karthein , Volker Koch , Claudia Ratti , Volodymyr Vovchenko

To sustain a neutron star with about two times the solar mass, multi baryons including hyperons are expected to produce repulsive effects in the interior of its high baryon-density region. To examine possible quark-Pauli repulsion among the…

Nuclear Theory · Physics 2016-09-21 C. Nakamoto , Y. Suzuki

We consider the implications of an ultra-light fermionic dark matter candidate that carries baryon number. This naturally arises if dark matter has a small charge under standard model baryon number whilst having an asymmetry equal and…

Cosmology and Nongalactic Astrophysics · Physics 2021-09-30 Stephon Alexander , Evan McDonough , David N. Spergel

We extend the excluded-volume model of isospin symmetric two-flavor dense quarkyonic matter [Phys. Rev. C 101, 035201 (2020)] including strange particles and address its implications for neutron stars. The effective sizes of baryons are…

Nuclear Theory · Physics 2021-01-04 Dyana C. Duarte , Saul Hernandez-Ortiz , Kie Sang Jeong

We decompose the tribaryon configuration in terms of SU(3) flavor and spin state and analyse their color-spin-flavor wave function following Pauli principle. By comparing the color-color and color-spin interactions of compact tribaryon…

High Energy Physics - Phenomenology · Physics 2018-08-08 Aaron Park , Woosung Park , Su Houng Lee

The clustering of baryons and cold dark matter induced by a single moving string is analyzed numerically making use of a new three-dimensional Eulerian cosmological hydro code$^{1)}$ which is based on the PPM method to track the baryons and…

Astrophysics · Physics 2016-08-30 A. Sornborger , R. Brandenberger , B. Fryxell , K. Olson

The occurence of a quark matter core in rotating compact stars has been investigated within general relativity as a function of both the rotational frequency and the total baryon number. We demonstrate that the deviation of the braking…

Astrophysics · Physics 2007-05-23 H. Grigorian , G. Poghosyan , E. Chubarian , D. Blaschke

In this two part series a chiral confining model of baryons is used to describe low--lying negative parity resonances $N^*$, $\Delta^*$, $\Lambda^*$ and $\Sigma^*$ in the mean field approximation. A physical baryon in this model consists of…

Nuclear Theory · Physics 2007-05-23 Y. Umino , M. K. Banerjee

The quantum mechanical Beth-Uhlenbeck (BU) approach for repulsive hard-core interactions between baryons is applied to the thermodynamics of a hadron gas. The second virial coefficient $a_2$ -- the "excluded volume" parameter -- calculated…

Nuclear Theory · Physics 2018-03-14 Volodymyr Vovchenko , Anton Motornenko , Mark I. Gorenstein , Horst Stoecker

Matter implies the existence of a large-scale connected cluster of a uniform nature. The appearance of such clusters as function of hadron density is specified by percolation theory. We can therefore formulate the freeze-out of interacting…

High Energy Physics - Phenomenology · Physics 2009-11-10 V. Magas , H. Satz

We review the spectrum and electromagnetic properties of baryons described as relativistic three-quark bound states within QCD. The composite nature of baryons results in a rich excitation spectrum, whilst leading to highly non-trivial…

High Energy Physics - Phenomenology · Physics 2016-10-12 Gernot Eichmann , Helios Sanchis-Alepuz , Richard Williams , Reinhard Alkofer , Christian S. Fischer

This note illustrates the possibility in simple loaded string models of trapping most of the system energy in a single degree of freedom for very long times, demonstrating in particular that the robustness of the trapping is enhanced by…

Chaotic Dynamics · Physics 2016-03-23 Ilya V. Pogorelov , Henry E. Kandrup