Results 11 to 20 of about 379 (181)

Properties of strange quark matter and strange quark stars [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
A Polyakov chiral $$\text {SU(3)}$$ SU(3) quark mean-field (PCQMF) model is applied to study the properties of strange quark matter (SQM) and strange quark star (SQS) in $$\beta $$ β -equilibrium.
Manisha Kumari, Arvind Kumar
doaj   +2 more sources

Searching for strange quark matter objects among white dwarfs

open access: yesPhysics Letters B, 2022
The ground state of matter may be strange quark matter (SQM), not hadronic matter. A whole sequence of SQM objects, ranging from strange quark stars and strange quark dwarfs to strange quark planets, can stably exist according to this SQM hypothesis.
Abdusattar Kurban   +3 more
doaj   +3 more sources

Repeating fast radio bursts from collapses of the crust of a strange star [PDF]

open access: yesThe Innovation, 2021
Summary: Strange stars (SSs) are compact objects made of deconfined quarks. It is hard to distinguish SSs from neutron stars as a thin crust composed of normal hadronic matter may exist and obscure the whole surface of the SS.
Jinjun Geng, Bing Li, Yongfeng Huang
doaj   +2 more sources

Search for Strange Quark Matter and Nuclearites on Board the International Space Station (SQM-ISS): A Future Detector to Search for Massive, Non-Relativistic Objects in Space [PDF]

open access: yesSensors
SQM-ISS is a detector that will search from the International Space Station for massive particles possibly present among the cosmic rays. Among them, we mention strange quark matter, Q-Balls, lumps of fermionic exotic compact stars, Primordial Black ...
Massimo Bianchi   +21 more
doaj   +2 more sources

Kantowski-Sachs Cosmological model with quark and strange quark matter in f(R) theory of gravity

open access: yesOpen Physics, 2015
In this paper we have studied the Kantowski- Sachs cosmological model with the quark and strange quark matter in the f (R) theory of gravity. The general solutions of the field equations are obtained by assuming the physical condition shear scalar σ is ...
Adhav Kishor S.   +2 more
doaj   +2 more sources

Confronting Strange Stars with Compact-Star Observations and New Physics

open access: yesUniverse, 2023
Strange stars ought to exist in the universe according to the strange quark matter hypothesis, which states that matter made of roughly equal numbers of up, down, and strange quarks could be the true ground state of baryonic matter rather than ordinary ...
Shuhua Yang   +3 more
doaj   +1 more source

Gravitational Waves from Strange Star Core–Crust Oscillation

open access: yesUniverse, 2022
According to the strange quark matter hypothesis, pulsars may actually be strange stars composed of self-bound strange quark matter. The normal matter crust of a strange star, unlike that of a normal neutron star, is supported by a strong electric field.
Ze-Cheng Zou   +2 more
doaj   +1 more source

Quark Matter May Not Be Strange [PDF]

open access: yesPhysical Review Letters, 2018
If quark matter is energetically favored over nuclear matter at zero temperature and pressure then it has long been expected to take the form of strange quark matter (SQM), with comparable amounts of $u$, $d$, $s$ quarks. The possibility of quark matter with only $u$, $d$ quarks ($ud$QM) is usually dismissed because of the observed stability of ...
Holdom, Bob, Ren, Jing, Zhang, Chen
openaire   +3 more sources

The crystallography of strange quark matter [PDF]

open access: yesJournal of Physics G: Nuclear and Particle Physics, 2006
Cold three-flavor quark matter at large (but not asymptotically large) densities may exist as a crystalline color superconductor. We explore this possibility by calculating the gap parameter Delta and free energy Omega(Delta) for possible crystal structures within a Ginzburg-Landau approximation, evaluating Omega(Delta) to order Delta^6.
Rajagopal, Krishna, Sharma, Rishi
openaire   +2 more sources

Boiling of strange-quark matter [PDF]

open access: yesPhysical Review D, 1991
Boiling of strange-quark matter is studied assuming baryon chemical equilibrium between a quark phase described by the bag model, and a hadron phase described by Walecka's mean-field theory. Boiling of quark nuggets at high temperatures is shown to be much less efficient than previously believed. Thus quark nuggets with large baryon numbers may survive
, Madsen, , Olesen
openaire   +2 more sources

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