Results 51 to 60 of about 41,826 (280)

Neutron star collisions and gravitational waves

open access: yesAstronomische Nachrichten, Volume 342, Issue 5, Page 788-798, June 2021., 2021
Abstract The long‐awaited detection of a gravitational wave from the merger of a binary neutron star in August 2017 (GW170817) marked the beginning of the new field of multi‐messenger gravitational wave astronomy. By exploiting the extracted tidal deformations of the two neutron stars from the late inspiral phase of GW170817, it was possible to ...
Matthias Hanauske, Lukas R. Weih
wiley   +1 more source

A New Limit on CPT Violation [PDF]

open access: yes, 1999
A search for antiproton decay has been made at the Fermilab Antiproton Accumulator. Limits are placed on fifteen antiproton decay modes. The results are used to place limits on the characteristic mass scale Mx that could be associated with CPT-violation ...
APEX Collaboration, Geer, S.
core   +2 more sources

From cosmic matter to the laboratory

open access: yesAstronomische Nachrichten, Volume 342, Issue 5, Page 808-818, June 2021., 2021
Abstract The recent discovery of binary neutron star mergers has opened a new and exciting venue of research into hot and dense strongly interacting matter. For the first time, this elusive state of matter, described by the theory of quantum chromo dynamics, can be studied in two very different environments.
Anton Motornenko   +2 more
wiley   +1 more source

The Double-Nozzle Technique Equipped with RF-Only Funnel and RF-Buncher for the Ion Beam Extraction into Vacuum

open access: yesAtoms, 2023
This study is a further development of our “Proposal of a new double-nozzle technique for in-gas-jet laser resonance ionization spectroscopy” paper published in the journal Atoms earlier this year.
Victor Varentsov
doaj   +1 more source

Enhanced antiproton production in Pb(160 AGeV)+Pb reactions: evidence for quark gluon matter? [PDF]

open access: yes, 2000
The centrality dependence of the antiproton per participant ratio is studied in Pb(160 AGeV)+Pb reactions. Antiproton production in collisions of heavy nuclei at the CERN/SPS seems considerably enhanced as compared to conventional hadronic physics, given
Antinucci   +19 more
core   +3 more sources

Development of a monoenergetic ultraslow antiproton beam source for high-precision investigation

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2012
The ASACUSA collaboration developed an ultraslow antiproton beam source, monoenergetic ultraslow antiproton source for high-precision investigation (MUSASHI), consisting of an electromagnetic trap with a liquid He free superconducting solenoid and a low ...
N. Kuroda   +18 more
doaj   +1 more source

Comparison of electromagnetic and hadronic models generated using Geant 4 with antiproton dose measured in CERN

open access: yesJournal of Medical Physics, 2015
After proposing the idea of antiproton cancer treatment in 1984 many experiments were launched to investigate different aspects of physical and radiobiological properties of antiproton, which came from its annihilation reactions. One of these experiments
Mohammad Bagher Tavakoli   +3 more
doaj   +1 more source

Antiproton Flux, Antiproton-to-Proton Flux Ratio, and Properties of Elementary Particle Fluxes in Primary Cosmic Rays Measured with the Alpha Magnetic Spectrometer on the International Space Station.

open access: yesPhysical Review Letters, 2016
A precision measurement by AMS of the antiproton flux and the antiproton-to-proton flux ratio in primary cosmic rays in the absolute rigidity range from 1 to 450 GV is presented based on 3.49×10^{5} antiproton events and 2.42×10^{9} proton events.
M. Aguilar   +268 more
semanticscholar   +1 more source

New Experiments with Antiprotons [PDF]

open access: yesProceedings of 35th International Conference of High Energy Physics — PoS(ICHEP 2010), 2010
Fermilab operates the world's most intense antiproton source. Newly proposed experiments can use those antiprotons either parasitically during Tevatron Collider running or after the Tevatron Collider finishes. For example, the annihilation of 8 GeV antiprotons is expected to yield world-leading sensitivities to hyperon rare decays and CP violation.
openaire   +8 more sources

A reservoir trap for antiprotons [PDF]

open access: yesInternational Journal of Mass Spectrometry, 2015
We have developed techniques to extract arbitrary fractions of antiprotons from an accumulated reservoir, and to inject them into a Penning-trap system for high-precision measurements. In our trap-system antiproton storage times > 1.08 years are estimated. The device is fail-safe against power-cuts of up to 10 hours.
C. Smorra   +12 more
openaire   +3 more sources

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