Published March 2017 | Version v1
Journal article

Stable strange quark matter objects with running masses and coupling constant

  • 1. CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190 (China)
  • 2. School of Information Science and Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo 315100 (China)
  • 3. Synergetic Innovation Center for Quantum Effects and Application, Hunan Normal University, Changsha 410081 (China)
  • 4. Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000 (China)
  • 5. School of Physics, University of Chinese Academy of Sciences, Beijing 100049 (China)

Description

We improve our recently proposed unified description for strange quark matter (SQM) objects, in the way that analytical expressions are derived and used to calculate the distribution of particles inside an SQM object. In the improved model, the computational time is greatly reduced without losing accuracy. The properties of SQM objects are then investigated by adopting perturbative quantum chromodynamics (pQCD) with running quark masses and coupling constant. Aside from the increase of masses and radii of strange stars, it is found that the perturbative interactions also make the electric field on the surface stronger and extends deeper into the core, while small SQM objects become less compact and more positively charged. These may affect the experimental searches of SQM.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.nuclphysb.2017.01.022

Additional details

Identifiers

DOI
10.1016/j.nuclphysb.2017.01.022;
PII
S0550-3213(17)30036-6;

Publishing Information

Journal Title
Nuclear Physics. B
Journal Volume
916
Journal Page Range
p. 669-687
ISSN
0550-3213
CODEN
NUPBBO

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
48065229
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
COUPLING CONSTANTS; DISTRIBUTION; ELECTRIC FIELDS; INTERACTIONS; MASS; QUANTUM CHROMODYNAMICS; QUARK MATTER; S QUARKS; SURFACES
Descriptors DEC
ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; MATTER; QUANTUM FIELD THEORY; QUARKS; STRANGE PARTICLES

Optional Information

Copyright
Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.