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.2017.01.022Additional 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.