118 citations · 545 across the 25 of their papers we have counts for
25 papers
Magnetic monopole meets primordial black hole: an extended analysis
Chen Zhang, Xin Zhang
We investigate gravitational capture of magnetic monopoles by primordial black holes (PBH) that evaporate before Big Bang Nucleosynthesis (BBN), a hypothetical process which was on…
Radial and Non-Radial Oscillations of Inverted Hybrid Stars
Chen Zhang, Yudong Luo, Hong-bo Li +2
We study the radial and non-radial oscillations of Cross stars (CrSs), i.e., stars with a quark matter crust and a hadronic matter core in an inverted order compared to conventiona…
Rescaling strange-cluster stars and its implications on gravitational-wave echoes
Chen Zhang, Yong Gao, Cheng-Jun Xia +1
Solid states of strange-cluster matter called strangeon matter can form strangeon stars that are highly compact. We show that strangeon matter and strangeon stars can be recast int…
BCS in the Sky: Signatures of Inflationary Fermion Condensation
Xi Tong, Yi Wang, Chen Zhang +1
We consider a Bardeen-Cooper-Schrieffer (BCS)-like model in the inflationary background. We show that with an axial chemical potential, the attractive quartic fermion self-interact…
Gravitational capture of magnetic monopoles by primordial black holes in the early universe
Chen Zhang, Xin Zhang
It is intriguing to ask whether the existence of primordial black holes (PBHs) in the early universe could significantly reduce the abundance of certain stable massive particles (S…
Hybrid stars may have an inverted structure
Chen Zhang, Jing Ren
We propose a new stellar structure of compact stars, the ``cross stars" that consist of a hadronic matter core and a quark matter crust, with an inverted structure compared to the…
A Little Excitement Across the Horizon
Keith K. Ng, Chen Zhang, Jorma Louko +1
We analyse numerically the transitions in an Unruh-DeWitt detector, coupled linearly to a massless scalar field, in radial infall in (3+1)-dimensional Schwarzschild spacetime. In t…
Stellar Structure and Stability of Charged Interacting Quark Stars and Their Scaling Behaviour
Chen Zhang, Michael Gammon, Robert B. Mann
We explore the stellar structure and radial stability of charged quark stars composed of interacting quark matter (IQM) in three classes of commonly used charge models. We adopt a…
Untangling scaling dimensions of fixed charge operators in Higgs Theories
Oleg Antipin, Jahmall Bersini, Francesco Sannino +2
We go beyond a systematic review of the semiclassical approaches for determining the scaling dimensions of fixed-charge operators in and models by introducing a gener…
Unruh-DeWitt Detector Differentiation of Black Holes and Exotic Compact Objects
Bob Holdom, Robert B. Mann, Chen Zhang
We study the response of a static Unruh-DeWitt detector outside an exotic compact object (ECO) with a general reflective boundary condition in 3+1 dimensions. The horizonless ECO,…
Unified Interacting Quark Matter and its Astrophysical Implications
Chen Zhang, Robert B. Mann
We investigate interacting quark matter (IQM), including the perturbative QCD correction and color superconductivity, for both up-down quark matter (QM) and strange quark matte…
Quantum nucleation of up-down quark matter and astrophysical implications
Jing Ren, Chen Zhang
Quark matter with only and quarks (QM) might be the ground state of baryonic matter at large baryon number . With , this has no d…
The Techni-Pati-Salam Composite Higgs
Giacomo Cacciapaglia, Shahram Vatani, Chen Zhang
Composite Higgs models can be extended to the Planck scale by means of the partially unified partial compositeness (PUPC) framework. We present in detail the Techni-Pati-Salam mode…
Composite Higgs Meets Planck Scale: Partial Compositeness from Partial Unification
Giacomo Cacciapaglia, Shahram Vatani, Chen Zhang
Providing an Ultra-Violet completion valid up to the Planck scale is of paramount importance to validate the composite Higgs paradigm, at par with supersymmetry. We propose the fir…
Probing up-down quark matter via gravitational waves
Chen Zhang
Recently, it was shown that quark matter with only and quarks (QM) can be the ground state of matter for baryon numbers with …
Constraining CP-violating electron-gluonic operators
Kingman Cheung, Wai-Yee Keung, Ying-nan Mao +1
We present an analysis of constraints on two types of CP-odd electron-gluonic operators and from current and…
Phenomenology of A Little Higgs Pseudo-Axion
Kingman Cheung, Shi-Ping He, Ying-nan Mao +2
In models where the Higgs is realized as a pseudo-Nambu-Goldstone boson (pNGB) of some global symmetry breaking, there are often remaining pNGBs of some groups (called `pseu…
Simplest Little Higgs Revisited: Hidden Mass Relation, Unitarity and Naturalness
Kingman Cheung, Shi-Ping He, Ying-nan Mao +2
We analyze the scalar potential of the Simplest Little Higgs (SLH) model in an approach consistent with the spirit of continuum effective field theory (CEFT). By requiring correct…
On the vertex in the simplest Little Higgs Model
Shi-Ping He, Ying-nan Mao, Chen Zhang +1
The issue of deriving vertex in the simplest Little Higgs (SLH) model is revisited. Special attention is paid to the treatment of non-canonically-normalized scalar kinetic ma…
Quark matter may not be strange
Bob Holdom, Jing Ren, Chen Zhang
If quark matter is energetically favored over nuclear matter at zero temperature and pressure then it has long been expected to take the form of strange quark matter (SQM), with co…
Testing CP-Violation in the Scalar Sector at Future Colliders
Gang Li, Ying-nan Mao, Chen Zhang +1
We propose a {\em model-independent} method to test CP-violation in the scalar sector through measuring the inclusive cross sections of process…
Instability of Chern-Simons Theory with Fermions at Large N
Chen Zhang
We study the (in)stability around the dynamical gap solution of the Chern-Simons gauge theory with fundamental fermions (massless or massive) coupled in at large .…
A Loop-philic Pseudoscalar
Gang Li, Ying-nan Mao, Yi-Lei Tang +3
We construct a weakly-coupled renormalizable model to explain the $750\mbox{GeV}$ diphoton excess. The $750\mbox{GeV}$ resonance (denoted as ) is interpreted as a pseudosca…
Invisible Higgs Decay at the LHeC
Yi-Lei Tang, Chen Zhang, Shou-hua Zhu
The possibility that the 125 GeV Higgs boson may decay into invisible non-standard-model (non-SM) particles is theoretically and phenomenologically intriguing. In this letter we in…