Results 1 to 10 of about 41,826 (280)
We review the physics of low-energy antiprotons, and its link with the nuclear forces. This includes: antinucleon scattering on nucleons and nuclei, antiprotonic atoms, and antinucleon-nucleon annihilation into mesons.
Jean-Marc Richard
doaj +6 more sources
Dark matter or correlated errors: Systematics of the AMS-02 antiproton excess [PDF]
Several studies have pointed out an excess in the AMS-02 antiproton spectrum at rigidities of 10–20 GV. Its spectral properties were found to be consistent with a dark-matter particle of mass 50–100 GeV which annihilates hadronically at roughly the ...
Jan Heisig+2 more
doaj +2 more sources
Review of Gas Dynamic RF-Only Funnel Technique for Low-Energy and High-Quality Ion Beam Extraction into a Vacuum [PDF]
This paper reviews the development and present status of a novel gas dynamic RF-only funnel technique for low-energy ion beam extraction into vacuum. This simple and original technique allows for the production of high-quality continuous and pulsed ion ...
Victor Varentsov
doaj +2 more sources
Formation of antihydrogen beams from positron–antiproton interactions
The formation of a beam of antihydrogen atoms when antiprotons pass through cold, dense positron plasmas is simulated for various plasma properties and antiproton injection energies.
S Jonsell, M Charlton
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Improved limit on the directly measured antiproton lifetime
Continuous monitoring of a cloud of antiprotons stored in a Penning trap for 405 days enables us to set an improved limit on the directly measured antiproton lifetime.
S Sellner+17 more
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Sixfold improved single particle measurement of the magnetic moment of the antiproton. [PDF]
Our current understanding of the Universe comes, among others, from particle physics and cosmology. In particle physics an almost perfect symmetry between matter and antimatter exists.
Nagahama H+16 more
europepmc +2 more sources
Observation of individual spin quantum transitions of a single antiproton [PDF]
We report on the detection of individual spin quantum transitions of a single trapped antiproton in a Penning trap. The spin-state determination, which is based on the unambiguous detection of axial frequency shifts in presence of a strong magnetic ...
C. Smorra+17 more
doaj +2 more sources
The Cosmic Ray Antiproton Background for AMS-02 [PDF]
The AMS-02 experiment is measuring the cosmic ray antiproton flux with high precision. The interpretation of the upcoming data requires a thorough understanding of the secondary antiproton background.
Kappl, Rolf, Winkler, Martin Wolfgang
core +4 more sources
Explaining the GeV Antiproton Excess, GeV γ-Ray Excess, and W-Boson Mass Anomaly in an Inert Two Higgs Doublet Model. [PDF]
For the newly discovered W-boson mass anomaly, one of the simplest dark matter (DM) models that can account for the anomaly without violating other astrophysical and experimental constraints is the inert two Higgs doublet model, in which the DM mass (m_ ...
Cheng-Rui Zhu+6 more
semanticscholar +1 more source
Discovery of the bound state of three gluons - odderon [PDF]
The TOTEM collaboration at the Large Hadron Collider, together with the D0 collaboration at the Tevatron collider at Fermilab, have announced the discovery of the odderon – a bound state of three gluons that was predicted about 50 years ago.
V. E. Aushev
doaj +1 more source