Conformal anomaly and the vector coupling in dense matter
- Title
- Conformal anomaly and the vector coupling in dense matter
- Author
- 이현규
- Issue Date
- 2011-08
- Publisher
- AMER PHYSICAL SOC, ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
- Citation
- PHYSICAL REVIEW D, 84, 3, 034011
- Abstract
- We construct an effective chiral Lagrangian for hadrons implemented by the conformal invariance and discuss the properties of nuclear matter at high density. The model is formulated based on two alternative assignment, "naive'' and mirror, of chirality to the nucleons. It is shown that taking the dilaton limit, in which the mended symmetry of Weinberg is manifest, the vector-meson Yukawa coupling becomes suppressed and the symmetry energy becomes softer as one approaches the chiral phase transition. This leads to softer equations of state (EoS) and could accommodate the EoS without any exotica consistent with the recent measurement of a 1.97 +/- 0.04M(circle dot) neutron star.
- URI
- https://journals.aps.org/prd/abstract/10.1103/PhysRevD.84.034011
- ISSN
- 2470-0010
- DOI
- 10.1103/PhysRevD.84.034011
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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