Results 131 to 140 of about 137,955 (315)

New channel to search for dark matter at Belle II

open access: yesJournal of High Energy Physics
We propose a new “disappearing positron track” channel at Belle II to search for dark matter, in which a positron that is produced at the primary interaction vertex scatters with the electromagnetic calorimeter to produce dark matter particles.
Jinhan Liang, Zuowei Liu, Lan Yang
doaj   +1 more source

Complex scalar dark matter in the gauged two-Higgs-doublet model [PDF]

open access: hybrid, 2020
Chuan-Ren Chen   +5 more
openalex   +1 more source

Advancing Research on Biomaterials and Biological Materials with Scanning Electron Microscopy under Environmental and Low Vacuum Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
Herein, environmental scanning electron microscopy (ESEM) is discussed as a powerful extension of conventional SEM for life sciences. By combining high‐resolution imaging with variable pressure and humidity, ESEM allows the analysis of untreated biological materials, supports in situ monitoring of hydration‐driven changes, and advances the functional ...
Jendrian Riedel   +6 more
wiley   +1 more source

Microstructural Evolution and Mechanical Performance of Plasma‐Assisted Hybrid Friction Stir Welded Dissimilar Aluminum–Copper Joints

open access: yesAdvanced Engineering Materials, EarlyView.
Plasma‐assisted hybrid friction stir welding of dissimilar AlCu joints employs localized plasma preheating to balance heat input and enhance plastic flow. The optimized process reduces axial force by up to 35%, refines the microstructure, and achieves ≈96% joint efficiency.
Deepak Kumar Yaduwanshi   +3 more
wiley   +1 more source

Production of dark photons through higher electromagnetic moments at LDMX: simulations and model discrimination

open access: yesJournal of High Energy Physics
We extend the projected sensitivity of LDMX for sub-GeV dark matter (DM) to the case of dark photons produced through higher order electromagnetic moments. These moments arise from loop diagrams involving portal matter fields, along with the gauge fields
Riccardo Catena   +2 more
doaj   +1 more source

Mechanically Deposited Wear‐Resistant Amorphous Zr55Cu30Al10Ni5 Coatings

open access: yesAdvanced Engineering Materials, EarlyView.
Mechanically deposited from glassy ribbons, the Zr55Cu30Al10Ni5 amorphous coating formed a hard, continuous layer on AISI 1010 steel, tripling substrate hardness, lowering friction, and reducing wear. Despite its rough surface, it showed friction and wear behavior comparable to the crystalline alloy, highlighting its strong potential as a durable ...
Tales Ferreira   +8 more
wiley   +1 more source

Constraining Asymmetric Dark Matter using colliders and direct detection

open access: yesJournal of High Energy Physics
We reappraise the viability of asymmetric dark matter (ADM) realized as a Dirac fermion coupling dominantly to the Standard Model fermions. Treating the interactions of such a DM particle with quarks/leptons in an effective-interactions framework, we ...
Arnab Roy   +2 more
doaj   +1 more source

Empirical Models for Dark Matter Halos. II. Inner Profile Slopes, Dynamical Profiles, and ?/?3 [PDF]

open access: green, 2006
Alister W. Graham   +4 more
openalex   +1 more source

LHC Dark Matter Working Group: Next-generation spin-0 dark matter models [PDF]

open access: yesPhysics of the Dark Universe, 2018
T. Abe   +57 more
semanticscholar   +1 more source

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