Results 131 to 140 of about 41,826 (280)

Antiproton-proton partial-wave analysis below 925 MeV/c

, 1994
A partial-wave analysis of all antiproton-proton scattering data below 925 MeV/c antiproton laboratory momentum is presented. The method used is adapted from the Nijmegen phase-shift analyses of pp and np scattering data.
de Swart, J. J., Rijken, Th. A., Timmermans, R.   +2 more
core   +1 more source

Stacking of cold antiprotons

Physics Letters B, 2002
AbstractThe stacking of cold antiprotons is currently the only way to accumulate the large numbers of the cold antiprotons that are needed for low energy experiments. Both the largest possible number and the lowest possible temperature are desired, especially for the production and study of cold antihydrogen. The antiprotons accumulated in our particle
Gabrielse, G., Bowden, N. S., Sefzick, N. Y., Walz, J., Pittner, H., Haensch, T. W., Hessels, E. A., Oxley, P., Speck, A., Storry, C. H., Tan, J. N., Wessels, M., Grzonka, D., Oelert, W., Schepers, G.   +14 more
openaire   +3 more sources

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., Hori M., Aghai-Khozani H., Barna D., Corradini M., Kobayashi T., Leali M., Lodi-Rizzini E., Mascagna V., Prest M., Soter A., Vallazza E., Venturelli L., Zurlo N., Hayano R.   +14 more
doaj   +1 more source

Simplified dark matter models in the light of AMS-02 antiproton data

Journal of High Energy Physics, 2017
In this work we perform an analysis of the recent AMS-02 antiproton flux and the antiproton-to-proton ratio in the framework of simplified dark matter models.
Tong Li
doaj   +1 more source

The galactic antiproton spectrum at high energies: background expectation vs. exotic contributions [PDF]

, 2006
A new generation of upcoming space-based experiments will soon start to probe the spectrum of cosmic ray antiparticles with an unprecedented accuracy and, in particular, will open up a window to energies much higher than those accessible so far.
J. S. Perko, Pierre Salati, Torsten Bringmann   +2 more
core   +3 more sources

Antiproton constraints on the GeV gamma-ray excess: a comprehensive analysis [PDF]

, 2014
A GeV gamma-ray excess has possibly been individuated in Fermi-LAT data from the Galactic Center and interpreted in terms of Dark Matter (DM) annihilations, either in hadronic (essentially bb̄) or leptonic channels.
M. Cirelli, D. Gaggero, G. Giesen, M. Taoso, Alfredo Urbano   +4 more
semanticscholar   +1 more source

COSMIC RAY ANTIPROTONS [PDF]

Particles, Strings and Cosmology (PASCOS 99), 2000
Cosmic ray antiprotons have been detected for over 20 years and are now measured reliably. Standard particle and astrophysics predict a conventional spectrum and abundance of secondary antiprotons consistent with all current measurements. These measurements place limits on exotic Galactic antiproton sources and non-standard antiproton properties ...
openaire   +3 more sources

Spin physics with antiprotons [PDF]

Czechoslovak Journal of Physics, 2005
Presented for the proceedings of ASI "Spin and Symmetry", Prague, July 5-10, 2004, to be published in Czech. J. Phys. 55 (2005)
M. Maggiora, V. Abazov, G. Alexeev, M. Alexeev, A. Amoroso, N. Angelov, S. Baginyan, F. Balestra, V. A. Baranov, Yu. Batusov, I. Belolaptikov, R. Bertini, A. Bianconi, R. Birsa, T. Blokhintseva, A. Bonyushkina, F. Bradamante, A. Bressan, M. P. Bussa, V. Butenko, M. Colantoni, M. Corradini, S. Dalla Torre, A. Demyanov, O. Denisov, V. Drozdov, J. Dupák, G. Erusalimtsev, L. Fava, A. Ferrero, L. Ferrero, M. Finger, M. Finger, V. Frolov, R. Garfagnini, M. Giorgi, V. A. Kalinnikov, Yu. Kharzheev, N. V. Khomutov, A. Kirilov, Yu. Kisselev, E. Komissarov, A. S. Korenchenko, A. Kotzinian, V. Kovalenko, N. P. Kravchuk, N. A. Kuchinski, E. Lodi Rizzini, V. Lyashenko, A. Maggiora, V. Malyshev, A. Martin, Yu. Merekov, A. S. Moiseenko, A. Olchevski, V. Panyushkin, D. Panzieri, G. Piragino, G. B. Pontecorvo, A. Popov, S. Porokhovoy, V. Pryanichnikov, M. Radici, M. P. Rekalo, A. Rozhdestvensky, N. Russakovich, P. Schiavon, O. Shevchenko, A. Shishkin, V. A. Sidorkin, N. Skachkov, M. Slunecka, A. Srnka, V. Tchalyshev, F. Tessarotto, E. Tomasi-Gustafsson, F. Tosello, E. P. Velicheva, L. Venturelli, L. Vertogradov, M. Virius, G. Zosi, N. Zurlo   +82 more
openaire   +4 more sources

Novel transverse emittance measurements for electron cooling characterization

Physical Review Accelerators and Beams, 2020
The extra low energy antiproton ring (ELENA) finished commissioning before the start of CERN’s second long shutdown in December 2018, successfully providing beams to a new experimental zone.
J. R. Hunt, J. Resta-López, C. P. Welsch, C. Carli, B. Dupuy, D. Gamba   +5 more
doaj   +1 more source

Antiproton-deuteron annihilation at low energies

, 2000
Recent experimental studies of the antiproton-deuteron system at low energies have shown that the imaginary part of the antiproton-deuteron scattering length is smaller than the antiproton-proton one.
A. Yu. Voronin, A. Zenoni, A.M. Green, A.M. Green, C.J. Batty, C.J. Batty, C.J. Batty, E. Friedman, G.P. Latta, G.P. Latta, G.Q. Liu, J. Carbonell, J. Carbonell, J. Carbonell, J. Carbonell, K. V. Protasov, K.V. Protasov, M. Augsburger, M. Kohno, M. Kohno, R.A. Mafliet, S. Wycech, V. A. Karmanov   +22 more
core   +3 more sources