Results 91 to 100 of about 29,791 (204)

CP-odd Phases in Slepton Pair Production [PDF]

open access: yes, 1998
The effects of CP-odd supersymmetric phases on slepton pair production are considered. It is shown that CP-even observables in $e^+ e^-$ and $e^- e^-$ collisions, such as the total selectron cross section, can depend on CP-odd supersymmetric phases ...
Peskin M., SCOTT THOMAS
core   +4 more sources

Semi-Annihilating Wino-Like Dark Matter [PDF]

open access: yesProceedings of 18th International Conference From the Planck Scale to the Electroweak Scale — PoS(PLANCK 2015), 2016
10 pages, 6 figures, submitted to Proceedings of the 18th International Conference From the Planck Scale to the Electroweak Scale (2015)
Spray, Andrew P., Cai, Yi
openaire   +2 more sources

Reforma rolna w Zachodniej Prowincji Przylądkowej Republiki Południowej Afryki

open access: yesPoliteja, 2016
Land reform in Western Cape Province in Republic of South Africa The principal aim of this paper is to critically examine the issue of land reform in Western Cape Province in Republic of South Africa. This paper is based primarily on discourse analyses
Andrzej Polus, Mikołaj Cześnik
doaj   +1 more source

Search for disappearing tracks in proton-proton collisions at s=13TeV

open access: yesPhysics Letters B, 2020
A search is presented for long-lived charged particles that decay within the volume of the silicon tracker of the CMS experiment. Such particles can produce events with an isolated track that is missing hits in the outermost layers of the silicon tracker,
A.M. Sirunyan   +2363 more
doaj   +1 more source

Light wino dark matter in brane world cosmology

open access: yes, 2005
The thermal relic density of the wino-like neutralino dark matter in the brane world cosmology is studied. The expansion law at a high energy regime in the brane world cosmology is modified from the one in the standard cosmology, and the resultant relic ...
D. Langlois   +4 more
core   +1 more source

Testing the higgsino-singlino sector of the NMSSM with trileptons at the LHC [PDF]

open access: yes, 2013
We propose a simplified light higgsino-singlino scenario in the NMSSM, in which the masses of the chargino and the lightest neutralino determine the masses and couplings of all 3 lightest neutralinos. This scenario is complementary to the simplified wino-
Ellwanger, Ulrich
core   +3 more sources

Wino dark matter annihilation through the radiative formation of bound states [PDF]

open access: yes, 2016
The most dramatic "Sommerfeld enhancements" of neutral-wino-pair annihilation occur when the wino mass is tuned to near critical values where there is a zero-energy S-wave resonance at the neutral-wino-pair threshold.
Evan Johnson, E. Braaten, H. Zhang
semanticscholar   +1 more source

Wino Dark Matter in light of the AMS-02 2015 Data [PDF]

open access: yes, 2015
The AMS-02 collaboration has recently reported the antiproton to proton ratio with improved accuracy. In view of uncertainties of the production and the propagation of the cosmic rays, the observed ratio is still consistent with the secondary ...
Ibe, Masahiro   +3 more
core   +1 more source

QCD effects on direct detection of wino dark matter [PDF]

open access: yes, 2015
A bstractWe complete the calculation of the wino-nucleon scattering cross section up to the next-to-leading order in αs. We assume that the other sparticles are decoupled and wino interacts with the Standard Model particles via the weak interaction. As a
J. Hisano, Koji Ishiwata, N. Nagata
semanticscholar   +1 more source

Constraining heavy dark matter with cosmic-ray antiprotons

open access: yes, 2018
Cosmic-ray observations provide a powerful probe of dark matter annihilation in the Galaxy. In this paper we derive constraints on heavy dark matter from the recent precise AMS-02 antiproton data. We consider all possible annihilation channels into pairs
Cuoco, Alessandro   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy