Calculating the Non-perturbative Term of the Pseudovector Interaction in the Pion-Nucleon System and Its Impact on the Pion Form Factor
The non-perturbative term of the pseudovector coupling interaction is included to examine its effect on the pion form factor, which is essential for understanding the extended structure of the pion.
Momentum Dependent Potentials from a Parity Doubling Chiral Mean Field Model in UrQMD: Impact on Flow and Particle Production
The implementation of momentum dependent potentials from a parity doubling chiral mean field (CMF) model in the UrQMD transport simulation significantly improves the description of particle production, especially for hyperons and pions, without significantly affecting the description of flow observables.
Lattice QCD Analysis of Strangeness-Baryon Number Correlations along the Pseudo-Critical Line in (2+1)-Flavor QCD
Lattice QCD calculations show that the ratio of strangeness-baryon number correlation to strangeness fluctuations, χBS 11/χS 2, exhibits moderate changes along the pseudo-critical line in (2+1)-flavor QCD, but differs significantly from preliminary experimental results at lower beam energies in the RHIC beam energy scan.
Condensation Phenomena of Ions in an Electrostatic Logarithmic Trap: Insights into Ion-Ion Interactions and Low-Temperature Thermodynamics
The study reveals that the Coulombic ion-ion interactions in an electrostatic logarithmic trap lead to two key effects: a logarithmic repulsive potential that opposes the trap, and a kinetic term that increases the free-particle energy along the trap axis. These effects have significant implications for the low-temperature thermodynamics of the ionic gas.
Advances in Ab Initio Computations of Atomic Nuclei
Ab initio computations based on effective field theories of quantum chromodynamics can now routinely predict and describe properties of medium-heavy nuclei, even reaching the heavy nucleus 208Pb. These computations leverage insights from nuclear structure physics and many-body methods to overcome the exponential complexity of the nuclear many-body problem.
Comprehensive Comparison of State-of-the-Art Nucleon-Nucleon Potentials: From Phase Shifts to Nuclear Matter
The study systematically compares 17 high-precision nucleon-nucleon (NN) interaction potentials, including AV18, CD-Bonn, pvCD-Bonn, and chiral effective field theory models, in terms of scattering phase shifts, differential cross sections, entanglement properties, and nuclear matter equations of state.
Dynamics of a Hydrogen Electron Perturbed by Circularly Polarized Light: Epicyclical Orbits
The interaction between a hydrogen atom and circularly polarized light leads to a complex nonlinear oscillator equation, whose solution describes the electron's perturbed orbit as a sum of epicyclical motions.
Magnetic Field Effects on Hadron Yields and Fluctuations in a Hadron Resonance Gas
The presence of a strong external magnetic field can significantly modify hadron yields and fluctuations in a hadron resonance gas, with potential implications for observables in heavy-ion collisions.
Exact Solutions and Stress Tensor of the Maxwell Field with Gauge Fixing Term in the Radiation-Dominant and Matter-Dominant Stages of the Expanding Universe
The Maxwell field with a general gauge fixing term is studied in the radiation-dominant and matter-dominant stages of the expanding universe. Exact solutions are derived, covariant canonical quantization is performed, and the stress tensor is obtained in the Gupta-Bleuler physical states. The regularized vacuum stress tensor is found to be zero, independent of the gauge fixing constant, and there is no trace anomaly.
Atomic-Resolution Vibrational Electron Energy-Loss Spectroscopy: Experimental, Theoretical, and Future Perspectives
Atomic-resolution vibrational electron energy-loss spectroscopy (EELS) in the scanning transmission electron microscope (STEM) enables the investigation of vibrations at the nanometer and atomic scale, providing insights into the local structure and properties of materials.
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