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pro vyhledávání: '"Klahn, Thomas"'
For studies of quark matter in astrophysical scenarios the thermodynamic bag model (tdBag) is commonly employed. Although successful, it does not account for dynamical chiral symmetry breaking (D$\chi$SB) and repulsions due to the vector interaction
Externí odkaz:
http://arxiv.org/abs/1603.03679
Autor:
Klahn, Thomas, Fischer, Tobias
For quark matter studies in astrophysics the thermodynamic bag model (tdBAG) has been widely used. Despite its success it fails to account for various phenomena expected from Quantum-Chromo-Dynamics (QCD). We suggest a straightforward extension of td
Externí odkaz:
http://arxiv.org/abs/1503.07442
Publikováno v:
Acta Phys. Pol. B Proc. Suppl. 5, 757 - 772 (2012)
Large neutron star masses as the recently measured $1.97\pm0.04$ M$_\odot$ for PSR J1614-2230 provide a valuable lower limit on the stiffness of the equation of state of dense, nuclear and quark matter. Complementary, the analysis of the elliptic flo
Externí odkaz:
http://arxiv.org/abs/1111.6889
Publikováno v:
Phys.Rev.C82:035801,2010
We derive a compact, semi-algebraic expression for the cold quark matter equation of state (EoS) in a covariant model that exhibits coincident deconfinement and chiral symmetry restoring transitions in-medium. Along the way we obtain algebraic expres
Externí odkaz:
http://arxiv.org/abs/0911.0654
Publikováno v:
Chin.Phys.C33:1189-1196,2009
Two basic motivations for an upgraded JLab facility are the needs: to determine the essential nature of light-quark confinement and dynamical chiral symmetry breaking (DCSB); and to understand nucleon structure and spectroscopy in terms of QCD's elem
Externí odkaz:
http://arxiv.org/abs/0906.4304
Publikováno v:
AIP Conf. Proc. 1038: Hadronic Physics, Eds. J. Cugnon, J.-P. Lansberg, N. Matagne, p. 183 (2008)
We suggest a scenario where the three light quark flavors are sequentially deconfined under increasing pressure in cold asymmetric nuclear matter as e.g. in neutron stars. The basis for our analysis is a chiral quark matter model of Nambu--Jona-Lasin
Externí odkaz:
http://arxiv.org/abs/0808.1369
Publikováno v:
J.Phys.G35:104077,2008
We suggest a scenario where the three light quark flavors are sequentially deconfined under increasing pressure in cold asymmetric nuclear matter, e.g., as in neutron stars. The basis for our analysis is a chiral quark matter model of Nambu--Jona-Las
Externí odkaz:
http://arxiv.org/abs/0808.0181
Publikováno v:
Phys.Rev.D78:116015,2008
In general the kernel of QCD's gap equation possesses a domain of analyticity upon which the equation's solution at nonzero chemical potential is simply obtained from the in-vacuum result through analytic continuation. On this domain the single-quark
Externí odkaz:
http://arxiv.org/abs/0807.2755
Autor:
Alford, Mark, Blaschke, David, Drago, Alessandro, Klahn, Thomas, Pagliara, Giuseppe, Schaffner-Bielich, Juergen
Publikováno v:
Nature445:E7-E8,2007
Ozel, in a recent reanalysis of EXO 0748-676 observational data (astro-ph/0605106), concluded that quark matter probably does not exist in the center of compact stars. We show that the data is actually consistent with the presence of quark matter in
Externí odkaz:
http://arxiv.org/abs/astro-ph/0606524
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