Results 91 to 100 of about 13,430 (234)

Search for electroweak production of charginos and sleptons decaying into final states with two leptons and missing transverse momentum in $$\sqrt{s}=13$$ s=13  $$\text {TeV}$$ TeV pp collisions using the ATLAS detector

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
A search for the electroweak production of charginos and sleptons decaying into final states with two electrons or muons is presented. The analysis is based on 139 fb$$^{-1}$$ -1 of proton–proton collisions recorded by the ATLAS detector at the Large ...
ATLAS Collaboration   +2924 more
doaj   +1 more source

Discovery reach for wino and higgsino dark matter with a disappearing track signature at a 100 TeV pp collider

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
Within the theory of supersymmetry, the lightest neutralino is a dark matter candidate and is often assumed to be the lightest supersymmetric particle (LSP) as well.
Masahiko Saito   +3 more
doaj   +1 more source

Linear Collider Capabilities for Supersymmetry in Dark Matter Allowed Regions of the mSUGRA Model

open access: yes, 2003
Recent comparisons of minimal supergravity (mSUGRA) model predictions with WMAP measurements of the neutralino relic density point to preferred regions of model parameter space.
  +73 more
core   +3 more sources

Radiative Corrections to scalar quark decays in the MSSM [PDF]

open access: yes, 2000
We review the one-loop corrections to the partial decay width of sbottom-quark into a top quark and a chargino for the parameter space relevant to the TESLA e+e- linear collider.
Guasch, Jaume   +2 more
core   +5 more sources

Spin correlations in production and decay of charginos [PDF]

open access: yesThe European Physical Journal C, 1999
20 pages, 13 postscript figures, latex using epsf.sty; misprints in (12),(61),(82) corrected, minor changes in text and in some numerical results; version to appear in Eur.Phys.J ...
Moortgat-Pick, G.   +3 more
openaire   +2 more sources

Search for disappearing tracks as a signature of new long-lived particles in proton-proton collisions at s=13 $$ \sqrt{s}=13 $$ TeV

open access: yesJournal of High Energy Physics, 2018
A search is presented for long-lived charged particles that decay within the CMS detector and produce the signature of a disappearing track. A disappearing track is an isolated track with missing hits in the outer layers of the silicon tracker, little or
The CMS collaboration   +2290 more
doaj   +1 more source

Precision Electroweak Tests of the Minimal and Flipped SU(5) Supergravity Models

open access: yes, 1993
We explore the one-loop electroweak radiative corrections in the minimal $SU(5)$ and the no-scale flipped $SU(5)$ supergravity models via explicit calculation of vacuum polarization contributions to the $\epsilon_{1,2,3}$ parameters.
A. B. Lahanas   +58 more
core   +2 more sources

Pair Production of the Lightest Chargino via Gluon-Gluon Collisions [PDF]

open access: yes, 1999
The production of the lightest chargino pair from gluon-gluon fusion is studied in the minimal supersymmetric model(MSSM) at proton-proton colliders. We find that with the chosen parameters, the production rate of the subprocess can be over 2.7 femto ...
A. Salam   +45 more
core   +2 more sources

Radiative corrections to chargino production with polarized beams [PDF]

open access: yesAIP Conference Proceedings, 2001
We show that radiative corrections to chargino production in electron-positron annihilation with polarized beams can be large especially in the case of right handed electrons. In addition, there is some dependency on the squark masses that allows us to extract information about the squark spectrum from the chargino production.
Diaz, Marco A.   +2 more
openaire   +2 more sources

Search for nearly degenerate higgsinos via photon fusion with the semileptonic channel at the LHC

open access: yesNuclear Physics B
Electroweak scale higgsinos with a nearly degenerate spectrum in supersymmetric models are well-motivated, but generally less constrained at collider experiments as the decay products are often too soft to detect.
Hang Zhou, Ning Liu
doaj   +1 more source

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