Higlights

Exploring the entanglement of free spin
${\bf\dfrac{1}{2}}$ , spin1 and spin2 fields2019, 43(5): 053102. doi: 10.1088/16741137/43/5/053102In this study, we explore the entanglement of free spin$ \displaystyle\frac{1}{2} $ , spin1, and spin2 fields. We start with an example involving Majorana fields in 1+1 and 2+1 dimensions. Subsequently, we perform the Bogoliubov transformation and express the vacuum state with a particle pair state in the configuration space, which is used to calculate the entropy. This clearly demonstrates that the entanglement entropy originates from the particles across the boundary. Finally, we generalize this method to free spin1 and spin2 fields. These higher free massless spin fields have wellknown complications owing to gauge redundancy. We deal with the redundancy by gaugefixing in the lightcone gauge. We show that this gauge provides a natural tensor product structure in the Hilbert space, while surrendering explicit Lorentz invariance. We also use the Bogoliubov transformation to calculate the entropy. The area law emerges naturally by this method. 
Monopole effects, core excitations, and
${\beta}$ decay in the A = 130 hole nuclei near ^{132}Sn2019, 43(5): 054101. doi: 10.1088/16741137/43/5/054101The proton and neutron crossshell excitations across the Z = 50 shell are investigated in the southwest quadrant of ^{132}Sn by largescale shellmodel calculations with extended pairing and multipolemultipole force. The model space allows proton (neutron) core excitations, and both the low and highenergy states for ^{130}In are well described, as found by comparison with the experimental data. The monopole effects between the proton orbit$ g_{9/2} $ and neutron orbit$ g_{7/2} $ are studied as the new monopole correction that perfectly reproduces the first 1^{+} level in ^{130}In. The energy interval of proton (neutron) core excitations in ^{130}In lies in the range of 4.5−6.5 (2.0−4.1) MeV, and the high energy yrast states are predicted as neutron core excitations. The$ \beta $ decays are calculated among the A=130 nuclei of ^{130}In, ^{130}Sn and ^{130}Cd. 
Long live the Higgs factory: Higgs decays to longlived particles at future lepton colliders
2019, 43(5): 053101. doi: 10.1088/16741137/43/5/053101We initiate the study of exotic Higgs decays to longlived particles (LLPs) at proposed future lepton colliders, focusing on scenarios with displaced hadronic final states. Our analysis entails a realistic trackerbased search strategy involving the reconstruction of displaced secondary vertices and the imposition of selection cuts appropriate for eliminating the largest irreducible backgrounds. The projected sensitivity is broadly competitive with that of the LHC and potentially superior at lower LLP masses. In addition to forecasting branching ratio limits, which may be freely interpreted in a variety of model frameworks, we interpret our results in the parameter space of a Higgs portal Hidden Valley and various incarnations of neutral naturalness, illustrating the complementarity between direct searches for LLPs and precision Higgs coupling measurements at future lepton colliders.
Just Accepted
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Strongly screening β^{−} decay antineutrino energy loss in presupernova
Published: 20190418, doi: 10.1088/16741137/43/6/064107

Constraining the symmetry energy at subnormal density by the isovector giant dipole resonances of spherical nuclei
Published: 20190417, doi: 10.1088/16741137/43/6/064109

Monte Carlo simulation of postfission process for fast neutroninduced ^{237}Np fission
Published: 20190417, doi: 10.1088/16741136/43/6/064001
In Press
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Timecrystal ground state and production of gravitational waves from QCD phase transition
Published: 20190419, doi: 10.1088/16741137/43/6/065101Show AbstractWe propose a novel mechanism for the production of gravitational waves in the early Universe that originates from the relaxation processes induced by the QCD phase transition. While the energy density of the quarkgluon meanfield is monotonously decaying in real time, its pressure undergoes a series of violent oscillations at the characteristic QCD time scales that generate a primordial multipeaked gravitational waves signal in the radio frequencies’ domain. The signal is an echo of the QCD phase transition that is accessible by planned measurements at the FAST and SKA telescopes.

Structure, formation, and decay of
${{\bar{K}NN}}$ system by FaddeevAGS calculationsPublished: 20190415, doi: 10.1088/16741137/43/6/064101Show AbstractThe Faddeev AGS equations for the coupledchannels$\bar{K}NN\pi\Sigma{N}$ system with quantum numbers I = 1/2 and S = 0 are solved. Using separable potentials for the$\bar{K}N\pi\Sigma$ interaction, we calculate the transition probability for the$(Y_{K})_{I=0}+N\rightarrow\pi\Sigma{N}$ reaction. The possibility to observe the trace of the$K^{}pp$ quasibound state in$\pi\Sigma{N}$ mass spectra was studied. Various types of chiralbased and phenomenological potentials are used to describe the$\bar{K}N\pi\Sigma$ interaction. Finally, we show that we can observe the signature of the$K^{}pp$ quasibound state in the mass spectra, as well as the trace of branch points in the observables. 
Triple α particle resonances in the decay of hot nuclear systems
Published: 20190408, doi: 10.1088/16741137/43/6/064102Show AbstractThe Efimov (Thomas) trimers in excited ^{12}C nuclei, for which no observation exists yet, are discussed by means of analyzing the experimental data of ^{70(64)}Zn(^{64}Ni) + ^{70(64)}Zn(^{64}Ni) reactions at the beam energy of E/A = 35 MeV/nucleon. In heavy ion collisions,
$ \alpha $ particles interact with each other and can form complex systems such as ^{8}Be and ^{12}C. For the 3$ \alpha $ particle systems, multiresonance processes give rise to excited levels of ^{12}C. The interaction between any two of the 3$ \alpha $ particles provides events with one, two or three ^{8}Be. Their interfering levels are clearly seen in the minimum relative energy distributions. Events with the three$ \alpha $ particle relative energies consistent with the ground state of ^{8}Be are observed with the decrease of the instrumental error for the reconstructed 7.458 MeV excitation level in ^{12}C, which was suggested as the Efimov (Thomas) state.
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Original research articles, Ietters and reviews Covering theory and experiments in the fieids of
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