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The phase diagram of a system constituted of neutrons, protons, $\Lambda$-hyperons and electrons is evaluated in the mean-field approximation in the complete three-dimensional space given by the baryon, lepton and strange charge. It is…

Nuclear Theory · Physics 2015-06-12 F. Gulminelli , Ad. R. Raduta , M. Oertel , J. Margueron

The properties of strange quark matter at zero temperature are investigated including medium effects. The quarks are considered as quasiparticles which acquire an effective mass generated by the interaction with the other quarks of the…

High Energy Physics - Phenomenology · Physics 2009-10-30 K. Schertler , C. Greiner , M. H. Thoma

A comprehensive study of the properties of strangelets at zero and finite temperature is presented within the framework of liquid drop model, including the essential finite size effects. Strong parameter dependences of the properties are…

High Energy Physics - Phenomenology · Physics 2008-11-26 Y. B. He , C. S. Gao , X. Q. Li , W. Q. Chao

Determination of the baryon number (or mass) distribution of the strangelets, that may fragment out of the warm and excited strange quark matter (SQM) ejected in the merger of strange stars (SSs) in compact binary stellar systems of the…

High Energy Astrophysical Phenomena · Physics 2015-04-14 Sayan Biswas , J. N. De , Partha S. Joarder , Sibaji Raha , Debapriyo Syam

We study the partial fragmentation of a strange quark star into strangelets during the process of merger of two strange quark stars. We discuss the fate of the fragments considering their possible evaporation into nucleons. We show that…

High Energy Astrophysical Phenomena · Physics 2022-11-09 Niccolò Bucciantini , Alessandro Drago , Giuseppe Pagliara , Silvia Traversi , Andreas Bauswein

The strong interactions at low energy scales determine the state of the supranuclear matter in the pulsar-like compact objects. It is proposed that the bulk strong matter could be composed of strangeons, which are quark clusters with a…

General Relativity and Quantum Cosmology · Physics 2021-11-25 Yong Gao , Xiao-Yu Lai , Lijing Shao , Ren-Xin Xu

We investigate the structure of strange dwarfs, modeled as hybrid compact stars composed of a self bound strange quark matter core surrounded by a white dwarf like crust, within a fully relativistic framework. Static configurations are…

Solar and Stellar Astrophysics · Physics 2026-02-06 Edson Otoniel , José D. V. Arbañil , Geanderson A. Carvalho , Fridolin Weber

We calculate the evolution of quark-gluon-plasma droplets during the hadronization in a thermodynamical model. It is speculated that cooling as well as strangeness enrichment allow for the formation of strangelets even at very high initial…

Nuclear Theory · Physics 2007-05-23 C. Spieles , C. Greiner , H. Stoecker , J. P. Coffin

We calculate strange star properties, using large N_c approximation with built-in chiral symmetry restoration (CSM). We used a relativistic Hartree Fock mean field approximation method, using a modified Richardson potential with two scale…

Astrophysics · Physics 2009-11-11 Subharthi Ray , Manjari Bagchi , Jishnu Dey , Mira Dey

The crystalline color superconducting phase is believed to be the ground state of deconfined quark matter for sufficiently large values of the strange quark mass. This phase has the remarkable property of being more rigid than any known…

High Energy Physics - Phenomenology · Physics 2014-06-11 Massimo Mannarelli , Giulia Pagliaroli , Alessandro Parisi , Luigi Pilo

There are several different experimental indications, such as the strangeness contribution to the magnetic moment of the proton, sigma_{\pi N} term, strange spin polarization, ratio of strange and non strange quark flavor distributions…

High Energy Physics - Phenomenology · Physics 2008-11-26 Harleen Dahiya , Manmohan Gupta

We show that self-annihilating neutralino WIMP dark matter accreted onto neutron stars may provide a mechanism to seed compact objects with long-lived lumps of strange quark matter, or strangelets, for WIMP masses above a few GeV. This…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-21 M. Angeles Perez-Garcia , Joseph Silk , Jirina R. Stone

We calculate for the first time the surface tension and curvature coefficient of a first order phase transition between two possible phases of cold nuclear matter, a normal nuclear matter phase in equilibrium with a kaon condensed phase, at…

In this article, we attempt to find a singularity free solution of Einstein's field equations for compact stellar objects, precisely strange (quark) stars, considering Schwarzschild metric as the exterior spacetime. To this end, we consider…

General Relativity and Quantum Cosmology · Physics 2017-10-19 Debabrata Deb , Sourav Roy Chowdhury , Saibal Ray , Farook Rahaman , B. K. Guha

The properties of dark matter admixed strange quark stars are investigated in the Starobinsky model of modified gravity. For quark matter we assume the MIT bag model, while self-interacting dark matter inside the star is modelled as a…

General Relativity and Quantum Cosmology · Physics 2018-02-14 Ilidio Lopes , Grigoris Panotopoulos

This letter presents an extension of EPL116(2017)62001 to light- and strange-quark nonequilibrium chemical phase-space occupancy factors ($\gamma_{q,s}$). The resulting damped trigonometric functionalities relating $\gamma_{q,s}$ to the…

High Energy Physics - Phenomenology · Physics 2017-11-10 Abdel Nasser Tawfik , Hayam Yassin , Eman R. Abo Elyazeed

Recent publications rule out the negatively charged beta equilibrium strangelets in ordinary phase, and the color-flavor locked (CFL) strangelets are reported to be also positively charged. This letter presents new solutions to the system…

High Energy Physics - Phenomenology · Physics 2014-11-18 G. X. Peng , X. J. Wen , Y. D. Chen

Motivated by some recent cosmic ray experiments we study the properties of strange quark matter near flavour equilibrium. Using Fermi-gas model we argue that, contrary to some claims, the geometrical radii of quark matter strangelets are…

High Energy Physics - Phenomenology · Physics 2009-10-28 G. Wilk , Z. Wlodarczyk

This work discuses the effect of the QCD coupling constant ($\alpha_c$) on various physical properties of compact stars in the framework of the Tolman IV potential admitting the equation of state of MIT bag model with nonzero value of mass…

General Relativity and Quantum Cosmology · Physics 2024-12-17 R Roy , K B Goswami , P K Chattopadhyay , A Saha

An effective model with constituent quarks as fundamental degrees of freedom is used to predict the relative strangeness production pattern in both high energy elementary and heavy ion collisions. The basic picture is that of the…

High Energy Physics - Phenomenology · Physics 2009-11-07 F. Becattini , G. Pettini