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Related papers: Shear viscosity in antikaon condensed matter

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It has been suggested that a potentially large fraction of supernovae could be accompanied by relativistic outflows that stall below the stellar surface. In this letter we point out that internal shocks that are believed to accelerate…

Astrophysics · Physics 2007-11-30 Hylke B. J. Koers , Ralph A. M. J. Wijers

Hadronic inhomogeneities are formed after the quark hadron phase transition. The nature of the phase transition dictates the nature of the inhomogeneities formed. Recently some scenarios of inhomogeneities have been discussed where the…

High Energy Physics - Phenomenology · Physics 2019-06-26 Sovan Sau , Sayantan Bhattacharya , Soma Sanyal

In these proceedings, we present the measurements of neutron skin thickness and nuclear deformation using isobar $^{96}_{44}$Ru+$^{96}_{44}$Ru and $^{96}_{40}$Zr+$^{96}_{40}$Zr collisions at $\sqrt{s_{_{\rm NN}}}=200$ GeV by the STAR…

Nuclear Experiment · Physics 2023-03-15 Haojie Xu

We calculate the shear viscosity and anomalous baryon number violation rate in quantum field theories at finite temperature having gravity duals with hyperbolic horizons. We find the explicit dependence of these quantities on the…

High Energy Physics - Theory · Physics 2015-05-13 George Koutsoumbas , Eleftherios Papantonopoulos , George Siopsis

We study the impact of additional couplings in the relativistic mean field (RMF) models, in conjunction with antikaon condensation, on various neutron star properties. We analyze different properties such as in-medium antikaon and nucleon…

Nuclear Theory · Physics 2013-04-09 Neha Gupta , P. Arumugam

We look at viscosity production in a universe consisting purely of leptons and photons. This is quite close to what the Universe actually look like when the temperature was between $10^{10}$ K and $10^{12}$ K ($1$ -- $100$ MeV). By taking…

Cosmology and Nongalactic Astrophysics · Physics 2016-10-18 Lars Husdal

We consider how superfluidity of dripped neutrons in the crust of a neutron star affects the frequencies of the crust's fundamental torsional oscillations. A nonnegligible superfluid part of dripped neutrons, which do not comove with…

High Energy Astrophysical Phenomena · Physics 2015-06-11 Hajime Sotani , Ken'ichiro Nakazato , Kei Iida , Kazuhiro Oyamatsu

The A dependence of the production of hadrons in inelastic muon scattering and of the production of dimuons in high $Q^2$ proton interactions are simply related. Feynman x distributions and z scaling distributions in nuclei are compared…

High Energy Physics - Phenomenology · Physics 2009-10-28 S. Frankel , W. Frati

We calculate thermal conductivity and shear viscosity of nucleons in dense nuclear matter of neutron star cores in the non-relativistic Brueckner-Hartree-Fock framework. Nucleon-nucleon interaction is described by the Argonne v18 potential…

Solar and Stellar Astrophysics · Physics 2015-06-17 P. S. Shternin , M. Baldo , P. Haensel

Gluons dominate the proton behavior at high energy collisions, they can be condensed at ultra high energy. The collisions of the accelerated high energy protons with interplanetary matter in cosmic rays will produce a huge number of…

High Energy Astrophysical Phenomena · Physics 2018-09-20 Wei Zhu Jiangshan Lan Jianhong Ruan , Fan Wang

We explore the influence of deuteron formation in the late stage of nucleus-nucleus reactions on the fluctuations observed in the final net-proton yields around midrapidity. At each investigated energy, the produced (anti-)proton yield at…

Nuclear Theory · Physics 2015-12-23 Zuzana Feckova , Jan Steinheimer , Boris Tomasik , Marcus Bleicher

Particle motion in non-Newtonian fluids can be markedly different than in Newtonian fluids. Here we look at the change in dynamics for a few problems involving rigid spherical particles in shear-thinning fluids in the absence of inertia. We…

Fluid Dynamics · Physics 2018-02-27 Charu Datt , Gwynn J. Elfring

We discuss the equation of state of neutron stars in the dense interior considering hyperons and the possible onset of kaon condensation within the relativistic mean field model. We find that hyperons are favoured in dense matter and that…

Nuclear Theory · Physics 2022-02-23 J. Schaffner , J. Bondorf , I. N. Mishustin

We consider Quarkyonic Matter to naturally explain the observed properties of neutron stars. We argue that such matter might exist at densities close to that of nuclear matter and at the onset, the pressure and the sound velocity in…

Nuclear Theory · Physics 2019-04-03 Larry McLerran , Sanjay Reddy

As pointed out by Kutschera and W{\'o}jcik, very low concentration of protons combined with a specific density dependence of effective neutron-proton interaction could lead to a localization of ``proton impurities'' in neutron medium at…

Astrophysics · Physics 2011-03-17 D. A. Baiko , P. Haensel

Recent equations of state for dense nuclear matter are discussed with possible phase transitions arising in neutron stars such as pion, kaon and hyperon kondensation, superfluidity and quark matter. Specifically, we treat the nuclear to…

Nuclear Theory · Physics 2009-10-31 H. Heiselberg , M. Hjorth-Jensen

A two-dimensional Yukawa liquid is studied using two different nonequilibrium molecular dynamics simulation methods. Shear viscosity values in the limit of small shear rates are reported for a wide range of Coulomb coupling parameter and…

Soft Condensed Matter · Physics 2016-08-16 Z. Donkó , J. Goree , P. Hartmann , K. Kutasi

Tensions in the measurements of neutron and kaon weak decays, such as of the neutron lifetime, may speak to the existence of new particles and dynamics not present in the Standard Model (SM). In scenarios with dark sectors, particles that…

High Energy Physics - Phenomenology · Physics 2024-02-06 Susan Gardner , Mohammadreza Zakeri

We model the soft pomeron contribution to dipole-dipole scattering as a closed string exchange in AdS5 with a wall. The exchange of closed and long strings is characterized by an apparent Unruh temperature and entropy that are caused by the…

High Energy Physics - Phenomenology · Physics 2014-04-03 Yachao Qian , Ismail Zahed

Isospin effects on the optical potentials of kaons and antikaons in dense hadronic matter are investigated using a chiral SU(3) model. These effects are important for asymmetric heavy ion collision experiments. In the present work the…

Nuclear Theory · Physics 2008-11-26 Amruta Mishra , Stefan Schramm