Results 71 to 80 of about 41,826 (280)

A systematic study on the cosmic ray antiproton flux [PDF]

open access: yes, 2016
Recently the AMS-02 collaboration has published the measurement of the cosmic antiproton to proton ratio $\bar{p}/p$ and the $\bar{p}$ flux with a high precision up to $\sim 450\,\mathrm{GeV}$.
Su-jie Lin   +4 more
semanticscholar   +1 more source

Antiproton-Proton Channels in J/psi Decays

open access: yes, 2005
The recent measurements by the BES Collaboration of J/psi decays into a photon and a proton-antiproton pair indicate a strong enhancement at the proton-antiproton threshold not observed in the decays into a neutral pion and a proton-antiproton pair.
B. Loiseau   +3 more
core   +2 more sources

Illuminating dark matter and primordial black holes with interstellar antiprotons [PDF]

open access: yes, 1998
Interstellar antiproton fluxes can arise from dark matter annihilating or decaying into quarks or gluons that subsequently fragment into antiprotons. Evaporation of primordial black holes also can produce a significant antiproton cosmic-ray flux.
Alexander Moiseev   +8 more
core   +2 more sources

Dynamic screening and energy loss of antiprotons colliding with excited Al clusters [PDF]

open access: yes, 2013
We use time-dependent density functional theory to calculate the energy loss of an antiproton colliding with a small Al cluster previously excited.
Borisov, Andrey G.   +3 more
core   +3 more sources

Compression of a mixed antiproton and electron non-neutral plasma to high densities

open access: yes, 2018
We describe a multi-step “rotating wall” compression of a mixed cold antiproton–electron non-neutral plasma in a 4.46 T Penning–Malmberg trap developed in the context of the AEḡIS experiment at CERN.
S. Aghion   +61 more
semanticscholar   +1 more source

Can we explain AMS-02 antiproton and positron excesses simultaneously by nearby supernovae without pulsars or dark matter? [PDF]

open access: yes, 2015
We explain the excess of the antiproton fraction recently reported by the AMS-02 experiment by considering collisions between cosmic-ray protons accelerated by a local supernova remnant and the surrounding dense cloud.
K. Kohri   +3 more
semanticscholar   +1 more source

Extended Glauber Model of Antiproton-Nucleus Annihilation for All Energies and Mass Numbers

open access: yes, 2014
Previous analytical formulas in the Glauber model for high-energy nucleus-nucleus collisions developed by Wong are utilized and extended to study antiproton-nucleus annihilations for both high and low energies, after taking into account the effects of ...
Lee, Teck-Ghee, Wong, Cheuk-Yin
core   +1 more source

Charmonium production in p̄-induced reactions on nuclei

open access: yesEPJ Web of Conferences, 2014
The production of charmonia in the antiproton-nucleus reactions at plab = 3 − 10 GeV/c is studied within the Glauber model and the generalized eikonal approximation. The main reaction channel is charmonium formation in an antiproton-proton collision. The
Larionov Alexei   +3 more
doaj   +1 more source

Observation of Odderon effects at LHC energies: a real extended Bialas–Bzdak model study

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
The unitarily extended Bialas–Bzdak model of elastic proton–proton scattering is applied, without modifications, to describe the differential cross-section of elastic proton–antiproton collisions in the TeV energy range, and to extrapolate these ...
T. Csörgő, I. Szanyi
doaj   +1 more source

Baryon femtoscopy in heavy-ion collisions at ALICE

open access: yes, 2014
In this report, femtoscopic measurements with proton-proton, antiproton-antiproton, proton-antiproton, proton-antilambda, antiproton-lambda and lambda-antilambda pairs in Pb-Pb collisions at sqrt(s_NN)=2.76 TeV registered by ALICE at the LHC are ...
Szymański, Maciej Paweł
core   +2 more sources

Home - About - Disclaimer - Privacy