Most papers are machine-translated to English; some are originally in English.
Showing 14 of 164 papers in Physics
The Veto detector of the external target facility (ETF) at the Heavy Ion Research Facility in Lanzhou - Cooling Storage Ring (HIRFL-CSR) was calibrated using cosmic rays. The calibration work was primarily divided into two components: position calibration and time calibration. Position calibration y…
The yield ratios of neutron-proton (R(n/p)) and 3H-3He (R(3H/3He)) with reduced rapidity from 0 to 0.5 were simulated for 50 MeV/u even-even 36-56Ca + 40Ca, even-even 48-78Ni + 58Ni and 100-139Sn (every third isotopes) + 112Sn at full reduced impact parameters using the isospin-dependent quantum mol…
Gas X-ray polarimetry refers to a class of detectors designed for measuring soft X-ray polarization. Systematic effects inherent to these detectors introduce residual modulation, resulting in systematic bias in the detected polarization of sources. This work discusses these systematic effects and th…
By the Skyrme density functional theory (DFT), potential energy surfaces (PES) of $^{240}$Pu with constraints on the axial quadrupole and octupole deformations($q_{20}$ and $q_{30}$) are calculated.The volume-like, and the surface-like pairing forces, and the mixing between these two forces are used…
In this paper, the analytic necessary and sufficient conditions are obtained for the CP-conserving two-Higgs-doublet potential to be bounded from below using the co-positivity of tensors. This is achieved by treating the potential as a quartic homogeneous polynomial in the moduli of the two Higgs do…
This paper focuses on exploring the physical logic of the relativity principle in particle dynamics. Through causal analysis of dynamics, it is found that the reason why Newton's second law suffers from difficulties regarding inertial frames and inertial forces is fundamentally due to the neglect of…
The paper proposes a statistical fields theory of quantum reference frame underlying the Perelman's analogies between his formalism of the Ricci flow and the thermodynamics. The theory is based on a $d=4-\epsilon$ quantum non-linear sigma model (NLSM), interpreted as a quantum reference frame system…
This study investigates the application technology of near-ultraviolet femtosecond laser pulse inscription inside polymethylpentene. We discovered that this thermoplastic material exhibits polarization-sensitive characteristics. First, inscription experiments employed a lens with a numerical apertur…
Strain engineering of 2D materials is capable of tuning the electrical and optical properties of the materials without introducing additional atoms. However, there are still great challenges in realizing straining of 2D materials with CMOS compatibility. Here, a method for large-scale ultrafast stra…
The introduction of non-Hermiticity extends concepts in traditional Hermitian quantum systems and induces many novel physical phenomena, such as the non-Hermitian skin effect unique to non-Hermitian systems, which has made the simulation of non-Hermitian quantum models a focus of attention. Compared…
Grassland is an important type of terrestrial ecosystem, and grassland ecosystem health assessment constitutes a crucial component of grassland health research in arid regions. Xinjiang is located in the Central Asian arid region, where the natural grasslands nurtured by the typical "mountain-basin"…
Configurational information entropy (CIE) theory was employed to determine the neutron skin thickness of neutron-rich calcium isotopes. The nuclear density distributions and fragment cross-sections in 350 MeV/u 40-60Ca + 9Be projectile fragmentation reactions were calculated using a modified statist…
Within the framework of an improved quantum molecular dynamics model, we have studied the fragmentation process of high-energy deuterons on heavy target nuclei, particularly focusing on neutrons emitted at near-zero-degree angles. The simulations reproduce the experimentally measured neutron double-…
Configurational information entropy (CIE) theory was employed to determine the neutron skin thickness of neutron-rich calcium isotopes. The nuclear density distributions and fragment cross-sections in 350 MeV/u 40060Ca + 9Be projectile fragmentation reactions were calculated using a modified statist…
