Results 31 to 40 of about 846 (195)

The Hadron-quark Crossover in Neutron Star within Gaussian Process Regression Method

The Astrophysical Journal, 2022
The equations of state of the neutron star at the hadron-quark crossover region are interpolated with the Gaussian process regression (GPR) method, which can reduce the randomness of present interpolation schemes.
Kaixuan Huang, Jinniu Hu, Ying Zhang, Hong Shen   +3 more
doaj   +1 more source

Chirally Improved Quark Pauli Blocking in Nuclear Matter and Applications to Quark Deconfinement in Neutron Stars

Particles, 2020
The relativistic mean field (RMF) model of the nuclear matter equation of state was modified by including the effect of Pauli-blocking owing to quark exchange between the baryons.
David Blaschke, Hovik Grigorian, Gerd Röpke   +2 more
doaj   +1 more source

From quark drops to quark stars [PDF]

The European Physical Journal A, 2016
We review some recent results about the mechanism of deconfinement of hadronic matter into quark matter in cold neutron stars and protoneutron stars. We discuss the role of finite size effects and the relevance of temperature and density fluctuations on the nucleation process. We also examine the importance of surface effects for mixed phases in hybrid
openaire   +2 more sources

Observability of neutron stars with quarks [PDF]

Nuclear Physics A, 2003
4 pages, 1 figure, uses espcrc1.sty (included)
Prakash, Madappa, Lattimer, James M., Steiner, Andrew W., Page, Dany   +3 more
openaire   +2 more sources

Electrical neutrality and $$\beta $$ β -equilibrium conditions in dense quark matter: generation of charged pion condensation by chiral imbalance

European Physical Journal C: Particles and Fields, 2020
The phase diagram of dense quark matter with chiral imbalance is considered with the conditions of electric neutrality and $$\beta $$ β -equilibrium. It has been shown recently that chiral imbalance can generate charged pion condensation (PC) in dense ...
T. G. Khunjua, K. G. Klimenko, R. N. Zhokhov   +2 more
doaj   +1 more source

Recent results on cold-QCD from RHIC [PDF]

EPJ Web of Conferences, 2020
Polarized proton-proton collisions at the Relativistic Heavy Ion Collider (RHIC) provide unique opportunities to study the spin structure of the nucleon.
Xu Qinghua
doaj   +1 more source

DISTINGUISHING BARE QUARK STARS FROM NEUTRON STARS [PDF]

International Journal of Modern Physics A, 2004
Observations to date cannot distinguish neutron stars from self-bound bare quark stars on the basis of their gross physical properties such as their masses and radii alone. However, their surface luminosity and spectral characteristics can be significantly different.
Jaikumar, P., Gale, C., Page, D., Prakash, M.   +3 more
openaire   +3 more sources

Generic Conditions for Stable Hybrid Stars

EPJ Web of Conferences, 2014
We study the mass-radius curve of hybrid stars, assuming a single first-order phase transition between nuclear and quark matter, with a sharp interface between the quark matter core and nuclear matter mantle.
Alford Mark G., Han Sophia
doaj   +1 more source

Experiment overview from STAR [PDF]

EPJ Web of Conferences
The STAR experiment at RHIC has a rich experimental program, thanks to the unique datasets covering a wide range of collision energies and collision systems.
Radhakrishnan Sooraj
doaj   +1 more source

Binary Neutron-Star Mergers with a Crossover Transition to Quark Matter

Universe, 2023
This paper summarizes recent work on the possible gravitational-wave signal from binary neutron-star mergers in which there is a crossover transition to quark matter.
Grant J. Mathews, Atul Kedia, Hee Il Kim, In-Saeng Suh   +3 more
doaj   +1 more source