Zi-Yuan Zhang

activity

20212024

most citedEmergence of microphysical bulk viscosity in binary neutron star post-merger dynamics

61 citations · 171 across the 10 of their papers we have counts for

collaborators

10 papers

hep-ph2024

Branching ratios and CP asymmetries of the quasi-two-body decays $B_{c} \to K_{0}^{*} (1430, 1950) D_{(s)} \to K π D_{(s)}$ in the PQCD approach

Zhi-Qing Zhang, Zi-Yu Zhang, Ming-Xuan Xie +2

In this paper, we investigate the quasi-two-body decays $B_{c} \to K_{0}^{*} (1430, 1950) D_{(s)} \to K π D_{(s)}$ within the perterbative QCD (PQCD) framework. The S-wave two-meson distr…

hep-ph2023

Semileptonic $B_{c}$ meson decays to S-wave charmonia and $X (3872)$ within the covariant light-front approach

Zhi-Jie Sun, Si-Yang Wang, Zhi-Qing Zhang +2

In this work, we investigate the semileptonic decays of $B_{c}$ meson to $η_{c} (1 S, 2 S, 3 S)$ , $ψ (1 S, 2 S, 3 S)$ and $X (3872)$ within the framework of covariant light-front quark model (C…

hep-ph2023

Quasi-two-body decays $B_{c} \to K^{*} h \to K π h$ in the perturbative QCD

Zi-Yu Zhang, Zhi-Qing Zhang, Si-Yang Wang +2

In this work we study the quasi-two-body decays $B_{c} \to K^{*} h \to K π h (h = D, D_{s}, K, π, η, η^{'})$ in the perturbative QCD (PQCD) approach. The two-meson distribution amplitude…

nucl-th2023★ 23 cited

Isospin Equilibration in Neutron Star Mergers

Mark G. Alford, Alexander Haber, Ziyuan Zhang

We analyze the isospin equilibration properties of neutrinoless nuclear ( $n p e$ ) matter in the temperature and density range that is relevant to neutron star mergers. Our analysis i…

hep-ph2023★ 5 cited

Quasi-two-body decays $B_{c} \to D^{*} h \to D π h$ in the perturbative QCD

Yan-Chao Zhao, Zhi-Qing Zhang, Zi-Yu Zhang +2

In this work, we investigate the quasi-two-body decays $B_{c} \to D^{*} h \to D π h$ with $h = (K^{0}, π^{0}, η, η^{'})$ using the perturbative QCD(PQCD) approach. The description of final st…

hep-ph2023★ 26 cited

Covariant Light-Front Approach for $B_{c}$ Decays into Charmonium: Implications on Form Factors and Branching Ratios

Zhi-Qing Zhang, Zhi-Jie Sun, Yan-Chao Zhao +2

In this work, we investigate the form factors of $B_{c}$ decays into $J /Ψ, ψ (2 S, 3 S)$ , $η_{c}, η_{c} (2 S, 3 S), χ_{c 0}, χ_{c 1}, h_{c}$ and $X (3872)$ mesons in the covariant light-front quark m…

hep-ph2022

Insights into the nature of the $X (3872)$ through B meson decays

Zhi-Qing Zhang, Zhi-Lin Guan, Yan-Chao Zhao +4

We study the decays $B_{c, u, d} \to X (3872) P$ in the perturbative QCD (PQCD) approach, where the puzzling resonance $X (3872)$ is involved and $P$ represents a light pseudoscalar meso…

hep-ph2022

Quasi-two-body decays $B_{(s)} \to K^{*} γ \to K π γ$ in perturbative QCD approach

Zhi-Qing Zhang, Yan-Chao Zhao, Zhi-Lin Guan +3

In this work we study the quasi-two-body decays $B \to K^{*} γ \to K π γ$ in the perturbative QCD (PQCD) approach. The two-meson distribution amplitudes (DAs) are introduced to describe t…

astro-ph.HE2022★ 61 cited

Emergence of microphysical bulk viscosity in binary neutron star post-merger dynamics

Elias R. Most, Alexander Haber, Steven P. Harris +3

In nuclear matter in isolated neutron stars, the flavor content (e.g., proton fraction) is subject to weak interactions, establishing flavor ( $β$ -)equilibrium. However, there can b…

nucl-th2021★ 56 cited

Beta equilibrium under neutron star merger conditions

Mark G. Alford, Alexander Haber, Steven P. Harris +1

We calculate the nonzero-temperature correction to the beta equilibrium condition in nuclear matter under neutron star merger conditions, in the temperature range $1$ MeV$ < T \le…

Branching ratios and CP asymmetries of the quasi-two-body decays Bc​→ K0∗​(1430,1950)D(s)​→KπD(s)​ in the PQCD approach

Semileptonic Bc​ meson decays to S-wave charmonia and X(3872) within the covariant light-front approach

Quasi-two-body decays Bc​→K∗h→Kπh in the perturbative QCD