Results 101 to 110 of about 30,906 (248)
Antiproton constraints on dark matter annihilations from internal electroweak bremsstrahlung
, 2011 If the dark matter particle is a Majorana fermion, annihilations into two fermions and one gauge boson could have, for some choices of the parameters of the model, a non-negligible cross-section. Using a toy model of leptophilic dark matter, we calculate
A. Birkedal +26 more
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Beam Diagnostics for Measurements of Antiproton Annihilation Cross Sections at Ultra-low Energy
EPJ Web of Conferences, 2014 The ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons) collaboration of CERN is currently attempting to measure the antiproton-nucleus in-flight annihilation cross sections on thin target foils of C, Pd, and Pt at 130 keV of kinetic ...
Todoroki K. +14 more
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Searching for Antiproton Decay at the Fermilab Antiproton Accumulator
, 1995 This paper describes an experimental search for antiproton decay at the Fermilab Antiproton Accumulator. The E868 (APEX) experimental setup is described.
Geer, S.
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A New Experiment to Study Hyperon CP Violation and the Charmonium System
, 2007 Fermilab operates the world's most intense antiproton source, now exclusively dedicated to serving the needs of the Tevatron Collider. The anticipated 2009 shutdown of the Tevatron presents the opportunity for a world-leading low- and medium-energy ...
Barnes P. D. +4 more
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Antiproton and proton collisions with the alkali metal atoms Li, Na, and K
, 2008 Single-electron ionization and excitation cross sections as well as cross sections for excitation into the first excited p state of the alkali metal atoms Li(2s), Na(3s) and K(4s) colliding with antiprotons and protons were calculated using a time ...
Alejandro Saenz +2 more
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The Legacy of the Tevatron in the Area of Accelerator Science
, 2013 For more than 25 years the Tevatron was the highest energy accelerator in the world, providing the first access to particle collisions beyond 1 TeV and achieving an ultimate performance a factor of four hundred beyond the original design goals.
Holmes, Stephen D. +1 more
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Advances in High Energy Physics, 2013 The multisource thermal model is used in this paper to analyze the antiproton (p¯) production process in high-energy proton-carbon (p-C) collisions.
Fu-Hu Liu +3 more
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Constraining pre Big-Bang-Nucleosynthesis Expansion using Cosmic Antiprotons
, 2006 A host of dark energy models and non-standard cosmologies predict an enhanced Hubble rate in the early Universe: perfectly viable models, which satisfy Big Bang Nucleosynthesis (BBN), cosmic microwave background and general relativity tests, may ...
Antonio Masiero +5 more
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Composition of the nuclear periphery from antiproton absorption
, 1998 Thirteen targets with mass numbers from 58 to 238 were irradiated with the antiproton beam from the Low Energy Antiproton Ring facility at CERN leading to the formation of antiprotonic atoms of these heavy elements.
Hartmann, F. J. +8 more
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Cosmic Antiproton Sensitivity for the GAPS Experiment [PDF]
, 2021 F. Rogers +55 more
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