Results 41 to 50 of about 3,908 (165)
Collimation, compression and acceleration of isotropic hot positrons by an intense vortex laser
New Journal of Physics, 2023 Laser-driven positron sources, characterized by short pulse width, small focal spot and high energy, are promising for potential applications, e.g. electron–positron collider and positron annihilation spectroscopy. However, the broad divergence angle and
Y Cao +9 more
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Molecular Cages Based Materials for CO2 Capture, Separation, and Conversion
EcoMat, Volume 8, Issue 2, February 2026.Molecular cages (MCs), boasting soluble, regenerable traits and precisely tunable structures, exhibit substantial potential for efficient CO2 capture, separation, and conversion. This review thoroughly explores MCs' recent advancements, analyzes current unresolved challenges, and provides forward‐looking perspectives to tackle pressing carbon‐related ...
Ding Zou +4 more
wiley +1 more source
A Positron Lifetime Study of Cooling and Natural Aging of Solutionized Aluminum Alloys
Advanced Engineering Materials, Volume 28, Issue 2, January 21, 2026.The process during cooling of Al–Mg and Al–Mg–Si alloys from the solutionizing temperature down to 20 °C is interrupted. These states are analyzed with positron lifetime spectroscopy to trace the processes during cooling. In different temperature ranges, two stages of vacancy loss and solute clustering are identified.
Zi Yang, Mengjie Li, John Banhart
wiley +1 more source
Journal of Applied Polymer Science, Volume 143, Issue 3, January 15, 2026.Dissolved hydrogen‐induced plasticization of polyamide 11 (PA11) detected as a decrease in flexural modulus (E f) using Cyclic Three‐Point Bending (Cyc‐3PB). ABSTRACT The effect of dissolved hydrogen on polyamide 11 (PA11) after decompression from a 90 MPa hydrogen gas environment was investigated. Structural analyses using wide‐angle X‐ray diffraction
Hiroaki Ono +6 more
wiley +1 more source
Advanced Materials, Volume 38, Issue 1, 2 January 2026.This review summarizes recent advances in metal‐based nanomaterials (MBNs) as multifunctional platforms for next‐generation diagnostics and nanodynamic therapies (NDTs), highlighting their structural tunability, diverse therapeutic modalities, and broad biomedical applications in oncology and infectious disease control.
Qihang Ding +11 more
wiley +1 more source
MMAPS: Missing-Mass A-Prime Search
EPJ Web of Conferences, 2017 An experiment is proposed to search for dark photons via electron-positron annihilation into photon plus dark photon. The dark photon would be reconstructed in a missing-mass technique, thus ensuring complete model independent.
Alexander Jim
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Energy–energy correlation in electron–positron annihilation at NNLL + NNLO accuracy
European Physical Journal C: Particles and Fields, 2017 We present the computation of energy–energy correlation in $$e^+e^-$$ e + e - collisions in the back-to-back region at next-to-next-to-leading logarithmic accuracy matched with the next-to-next-to-leading order perturbative prediction.
Zoltán Tulipánt +2 more
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Comment on “Nondispersive analytical solutions to the Dirac equation”
Physical Review Research, 2020 In our Comment we question the validity of the claim made by Campos and Cabrera [Phys. Rev. Res. 2, 013051 (2020)2643-156410.1103/PhysRevResearch.2.013051] that their solutions of the Dirac equation in an external time-dependent electromagnetic field ...
Iwo Bialynicki-Birula +1 more
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Paradoxical Topological Soliton Lattice in Anisotropic Frustrated Chiral Magnets
Advanced Science, Volume 13, Issue 5, 27 January 2026.The article describes the discovery of a stable skyrmion‐antiskyrmion lattice (S‐AL) in anisotropic frustrated chiral magnets. This lattice has a net‐zero topological charge due to a balanced population of skyrmions and antiskyrmions. This is a paradoxical finding since these particles normally annihilate each other.
Sayan Banik +2 more
wiley +1 more source
Positron Annihilation Spectroscopy of Active Galactic Nuclei
Journal of Astronomy and Space Sciences, 2019 A regular and random components in the fluxes of quanta and particles from AGN is investigated. We consider the diffuse component and detect radiative feedback after the passage of cosmic rays and quanta through AGN.
Alexander V. Yushchenko +1 more
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