Results 101 to 110 of about 15,279 (232)

CP sensitive observables in chargino production and decay into a W boson

open access: yes, 2004
We study CP sensitive observables in chargino production in electron-positron collisions with subsequent two-body decay of one chargino into a W boson. We identify the CP odd elements of the W boson density matrix and propose CP sensitive triple-product ...
A. Bartl   +7 more
core   +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  

Radiative Corrections to Neutralino and Chargino Masses in the Minimal Supersymmetric Model

open access: yes, 1993
We determine the neutralino and chargino masses in the MSSM at one-loop. We perform a Feynman diagram calculation in the on-shell renormalization scheme, including quark/squark and lepton/slepton loops. We find generically the corrections are of order 6%.
A. Brignole   +30 more
core   +1 more source

Single chargino production at linear colliders [PDF]

open access: yes, 2000
We study the single chargino production $e^+ e^- \to \tilde \chi^{\pm} \mu^{\mp}$ at linear colliders which occurs through the $\l_{121}$ R-parity violating coupling constant. We focus on the final state containing 4 leptons and some missing energy.
Moreau, G.
core   +2 more sources

Generation Mixing of Sneutrinos in Heavier Chargino Decay

open access: yes, 2005
The heavier chargino decay could yield two charged leptons of different generations, owing to generation mixing of sneutrinos. We discuss the possibility of producing $e$ and $\mu$ through this process in near future collider experiments.
For a recent review   +3 more
core   +1 more source

Search for direct top squark pair production in final states with one isolated lepton using 21 fb−1 of data collected with the ATLAS detector

open access: yesEPJ Web of Conferences, 2014
Naturalness arguments for weak-scale supersymmetry favour supersymmetric partners of the third generation quarks with masses not too far from those of their Standard Model counterparts. Top or bottom scalar quarks (or squarks) with masses less than a few
Meloni Federico, Pani Priscilla
doaj   +1 more source

Signals for CP Violation in Split Supersymmetry

open access: yes, 2005
Split supersymmetry is characterized by relatively light chargino and neutralino sector and very heavy sfermion sector. We study the consequence of CP violation in this scenario by evaluating two-loop contributions to electric dipole moments of fermions ...
Abel   +77 more
core   +1 more source

Search for direct production of charginos and neutralinos in events with three leptons and missing transverse momentum in 21 fb−1 of pp collisions at √(s) = 8 TeV with the ATLAS detector

open access: yesEPJ Web of Conferences, 2013
A search for direct chargino and neutralino production processes is presented in a final state with exactly 3 leptons (electrons or muons). No excess over the Standard Model has been observed. The analysis presented is based on 20.7 fb−1 of proton-proton
Schneider Basil
doaj   +1 more source

Light Higgsino Detection at LEP1.5

open access: yes, 1996
Within the minimal supersymmetric extension of the Standard Model, the best fit to the most recent precision-measurement data requires charginos and neutralinos, with dominant Higgsino components and with masses within the reach of LEP1.5 ($\sqrt{s}=140$
Abachi   +42 more
core   +1 more source

Search for Chargino-Neutralino Pair Production at CDF

open access: yes, 2007
We present the results of a search for associated production of the lightest chargino and next-to-lightest neutralino using 1 fb$^{-1}$ of $\sqrt s$ = 1.96 TeV p$\rm \bar p$ data collected with the CDF detector at the Tevatron.
Lytken, Else
core  

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