Tag: Nuclear and High Energy Physics
Dimer graphs match relativistic Toda chains and Seiberg-Witten curves
What the study found The authors construct dimer graphs for relativistic Toda chains associated with classical untwisted Lie algebras of A, B, C0, Cπ, and D types, as well as twisted A and D types. They also show that the Seiberg-Witten curve of 5d N=1 pure supersymmetric gauge theory with gauge group G is a…
Laser-plasma electron beams showed favorable deep-dose distribution
What the study found Polychromatic very high-energy electron (VHEE) beams generated by a laser-plasma accelerator and delivered through a beamline were found to achieve favorable dose distribution for reaching deep areas inside a phantom. Why the authors say this matters The authors say this work helps explore and optimize laser-plasma-accelerator-generated VHEE radiotherapy, and they present…
Minimal asymmetric dark matter model uses Higgs-portal mediation
What the study found The study presents a minimal asymmetric dark matter model in which the dark sector contains a stable neutral Dirac fermion X and a real scalar mediator ϕ, with the mediator coupled to the Standard Model through a Higgs portal. The authors say that if dark and baryonic asymmetries are of comparable…
VSDM release supports dark matter scattering calculations
VSDM version 0.3 provides Julia and Python tools for computing dark matter scattering rates in anisotropic detector materials through partial rate matrix calculations.
Dark decay channels strengthen cosmological bounds on heavy neutral leptons
Cosmological analysis shows heavy neutral leptons with dark decay modes face stronger big bang nucleosynthesis constraints, not weaker ones, narrowing viable parameter space for terrestrial detection.
Axion interaction Lagrangian includes WZW terms and meson decays
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Complete Lagrangian for axion interactions with mesons incorporating Wess-Zumino-Witten terms and instanton effects, enabling consistent predictions for axion decay widths.
Proton resonance radii show an early-time plateau and threshold increase
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Theoretical investigation of nuclear charge radii in proton-unbound systems using complex-energy methods, revealing early-time plateau behavior and halolike threshold enhancement.
Muon-induced neutron spectra show possible high-multiplicity anomalies in lead
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Analysis of muon-induced neutron emission from lead targets reveals systematic deviations from standard power-law modeling, with evidence of structure in high-multiplicity events independent of depth.
Oscillatory near-barrier proton capture observed in 20O
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Observation of oscillatory behavior in the 20O + 1H capture excitation function reveals quasi-bound states in 21F with vibrational character coupled to the 2+ state of 20O.
EIC pseudodata could affect strong coupling estimates
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Global PDF analysis of Electron Ion Collider impact on strong coupling determination across conservative and optimistic experimental scenarios within the MSHT framework.
