Results 111 to 120 of about 648,957 (221)

Cooling of Neutron Stars

open access: yesEPJ Web of Conferences, 2010
We introduce the theoretical basis for modeling the cooling evolution of compact stars starting from Boltzmann equations in curved space-time. We open a discussion on observational verification of different neutron star models by consistent statistics ...
Grigorian H.
doaj   +1 more source

Quark matter and quark stars at finite temperature in Nambu–Jona-Lasinio model

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
We extend the SU(3) Nambu–Jona-Lasinio (NJL) model to include two types of vector interaction. Using these two types of vector interaction in NJL model, we study the quark symmetry free energy in asymmetric quark matter, the constituent quark mass, the ...
Peng-Cheng Chu   +6 more
doaj   +1 more source

Finite corrections to quark fragmentation functions in perturbative QCD [PDF]

open access: yes, 1979
Baier R, Fey K. Finite corrections to quark fragmentation functions in perturbative QCD. Zeitschrift für Physik C: Particles and fields.
Baier, Rudolf, Fey, K.
core   +1 more source

SCQGP in quark stars

open access: yesThe European Physical Journal C, 2012
From an analogy with non-relativistic degenerate QED plasma we make an estimate of the coupling strength of QGP hypothesized to be present in compact star interiors. At densities ranging from 3ρ 0–10ρ 0 (normal nuclear density ρ 0=0.16 fm−3), quark matter is found to be strongly to intermediately coupled.
Sineeba Ramadas, Vishnu M. Bannur
openaire   +1 more source

QCD Equations of State in Hadron–Quark Continuity

open access: yesUniverse, 2018
The properties of dense matter in quantum chromodynamics (QCD) are delineated through equations of state constrained by the neutron star observations. The two solar mass constraint, the radius constraint of ≃11–13 km, and the causality constraint on the ...
Toru Kojo
doaj   +1 more source

Fluctuations and correlations from microscopic transport theory [PDF]

open access: yes, 2009
The multiplicity fluctuations in A+A collisions at SPS and RHIC energies are studied within the HSD transport approach. We find a dominant role of the fluctuations in the nucleon participant number for the final fluctuations. In order to extract physical
Bratkovskaya, Elena L.   +3 more
core  

Materia de quarks a temperatura finita [PDF]

open access: yes, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Física, Florianópolis, 2013A constitução dos objetos estelares continua sendo fonte de especulação.
Agudelo, David Felipe Tamayo
core  

Quark Matter and Quark Stars [PDF]

open access: yesProceedings of the Workshop on Quarks and Compact Stars 2017 (QCS2017), 2018
Guangxiong Peng   +2 more
openaire   +1 more source

Stars and quark stars in bumblebee gravity

open access: yesAnnals of Physics
In this work, the interior spacetime of stars is built in a Lorentz symmetry breaking model called bumblebee gravity. Firstly, we calculated the modified Tolman-Oppenheimer-Volkoff equation in this context of modified gravity. Then we show that the bumblebee field, responsible for the symmetry breaking, increases the star mass-radius relation when it ...
Juliano C.S. Neves, Fernando G. Gardim
openaire   +2 more sources

On the conversion of neutron stars into quark stars

open access: yesEPJ Web of Conferences, 2014
The possible existence of two families of compact stars, neutron stars and quark stars, naturally leads to a scenario in which a conversion process between the two stellar objects occurs with a consequent release of energy of the order of $10^{53}$ erg.
openaire   +3 more sources

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