Signatures of quark matter from neutron star mass-radius curve

@misc{malik2026signatures,
  title = {{Signatures of quark matter from neutron star mass-radius curve}},
  author = {Tuhin Malik and Milena Albino and Pedro Sanson and Constança Providência},
  howpublished = {arXiv},
  year = {2026},
  month = nov,
  doi = {10.48550/arxiv.2611.02446},
  eprint = {2611.02446},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2611.02446},
}

TY  - UNPB
TI  - Signatures of quark matter from neutron star mass-radius curve
AU  - Tuhin Malik
AU  - Milena Albino
AU  - Pedro Sanson
AU  - Constança Providência
PY  - 2026
DA  - 2026/11/02
PB  - arXiv
DO  - 10.48550/arxiv.2611.02446
UR  - https://arxiv.org/abs/2611.02446
AB  - Signatures of the presence of quark matter inside neutron stars are obtained from the analysis of more than 250,000 mass-radius curves that describe nucleonic, hyperonic and hybrid stars, based on five different hadronic relativistic mean-field models and four different descriptions of quark matter. A radius maximum occurring above 1.7 M_⊙ strongly favors quark matter inside the star. A second criterion identifying the presence of quark matter is X>−0.2km, where X=[R(2.0)-R(1.6)]-[R(1.6)-R(1.4)] is obtained from the radius of stars with 2.0, 1.6 and 1.4 M_⊙. It is also shown that most of the hyperonic stars have a radius maximum that peaks around 1.5M_⊙ and compactness below 0.27 for the maximum-mass configuration, while for the nucleonic stars that have a radius maximum, this peaks below 1.3M_⊙ and the compactness of the maximum-mass configuration lies above 0.26.
ER  -