Cheng-Jun Xia

Pair luminosity and cooling of newborn strange star: Color-flavor-locked and two-flavor color superconducting quarks

Anonymous, Cheng-Jun Xia, Gregory Vereshchagin

by, cn, it (code pays fourni par la source)

High-density isovector uncertainty and direct-Urca thresholds in a ρ -flex density-dependent relativistic mean-field model*

Wen-Jie Xie, Cheng-Jun Xia

Abstract We investigate the role of the model dependence of the high-density isovector sector in neutron-star matter within a density-dependent relativistic mean-field framework. A 10-dimensional TW-like DD-RMF baseline model is compared with an 11-dimensional ρ -flex extension in which an additional parameter, …

cn (code pays fourni par la source)

Impact of radius-measurement uncertainty on RMF parameters and neutron-star matter properties

Wen-Jie Xie, Cheng-Jun Xia

cn (code pays fourni par la source)

Bayesian constraints on quark stars from multimessenger observations

Wen-Jie Xie, Cheng-Jun Xia

We perform a systematic Bayesian analysis of quark star equations of state under current multimessenger constraints, investigating the impact of prior assumptions and extreme-mass observations. Quark matter is modeled within an interacting MIT bag framework that consistently accommodates color-superconducting phases (2SC, 2SC+s, …

cn, hk (code pays fourni par la source)

Quarkyonic matter with strangeness in an extended relativistic mean-field model

Wei Sun, Cheng-Jun Xia, T. Sun

cn (code pays fourni par la source)

Properties and microscopic structures of dense stellar matter in relativistic mean field models

H. Sun, Cheng-Jun Xia, Toshiki Maruyama

Data tables on the equation of state (EOS) and microscopic structures for cold dense stellar matter with proton fractions $Y_p =0.01$-$0.65$ and baryon number densities $n_\text{b}=10^{-8}$-$2 \ \mathrm{fm}^{-3}$ are obtained adopting 13 different relativistic density functionals, i.e., NL3, PK1, PK1r, GM1, MTVTC, …

cn, jp (code pays fourni par la source)

Multibaryon states in the framework of an equivparticle model

Hao-Song You, Xinmei Zhu, Cheng-Jun Xia, Jialun Ping et autres

Within the framework of an equivparticle model employing mean-field approximation, we investigate systematically the mass spectra of color-singlet N -quark configurations with N = 3 , 6, 9, 12, 15, and 18, which are assumed to be spherically symmetric with quarks occupying …

cn (code pays fourni par la source)

Nonradial oscillations of stratified neutron stars with solid crusts: Mode characterization and tidal resonances in coalescing binaries

Yong Gao, Hao-Jui Kuan, Cheng-Jun Xia, Hector O. Silva et autres

Dynamical tides of neutron stars in the late stages of binary inspirals provide a viable probe into dense matter through gravitational waves and potentially trigger electromagnetic precursors. We model the tidal response as a set of driven harmonic oscillators, where the natural …

de, cn, us, jp (code pays fourni par la source)

U-spin symmetry energy and hyperon puzzle

Hao-Song You, T. Yu, Cheng-Jun Xia, Renxin Xu

By combining the ($u$,$d$) I-spin doublets or ($d$,$s$) U-spin doublets, the SU(3) flavor symmetry of light quarks can be decomposed into SU(2)$_I\times$U(1)$_Y$ or SU(2)$_U\times$U(1)$_Q$ subgroups, which have been widely adopted to categorize hadrons and their decay properties. The I-spin counterpart for the …

Light and heavy Λ hyperclusters in nuclear matter with relativistic mean-field models

Cheng-Jun Xia, Yu-Ting Rong, T. Sun

In the framework of relativistic-mean-field (RMF) models, we investigate the properties of light and heavy $\mathrm{\ensuremath{\Lambda}}$ hyperclusters emersed in nuclear matter at various densities ${n}_{\mathrm{gas}}$ and proton fractions ${Y}_{p}$. In particular, the (hyper)clusters are fixed by solving the Dirac equations imposing the …

cn (code pays fourni par la source)

Nonradial oscillations of stratified neutron stars with solid crusts: Mode characterization and tidal resonances in coalescing binaries

Yong Gao, Hao-Jui Kuan, Cheng-Jun Xia, Hector O. Silva et autres

Dynamical tides of neutron stars in the late stages of binary inspirals provide a viable probe into dense matter through gravitational waves, and potentially trigger electromagnetic precursors. We model the tidal response as a set of driven harmonic oscillators, where the natural …

Light and heavy $Λ$ hyperclusters in nuclear matter with relativistic-mean-field models

Cheng-Jun Xia, Yu-Ting Rong, Ting-Ting Sun

In the framework of relativistic-mean-field (RMF) models, we investigate the properties of light and heavy $Λ$ hyperclusters emersed in nuclear matter at various densities $n_{\mathrm{gas}}$ and proton fractions $Y_p$. In particular, the (hyper)clusters are fixed by solving the Dirac equations imposing the …