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Showing 1 to 9 of 9 for “"Squark"”.
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Search for Squark Production in R-Parity Violating Supersymmetry at HERA
This thesis describes a search for squarks in supersymmetric models which allow R-parity violation. Electron-proton and positron-proton collisions taken at a centre of mass energy of 320 GeV have been investigated using the H1 detector at HERA. No deviation from the Standard Model has been found …
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The hunting of the squark: experimental strategies in the search for supersymmetry at the Large Hadron Collider
… details of a search for hadronically-decaying squarks and gluinos, carried out on 4.7 fb−1 of data collected at 7 TeV in 2011 by the ATLAS detector. The search strategy is described, focusing on the implementation of a background estimation method using photon events to determine the background …
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Probing Lepton Flavour Universality With $\bz \to \kstarz \taup \taum$
<p>Neutral current $\bquark \to \squark ll$ processes have long been known to be precise probes of physics beyond the Standard Model. A pattern of anomalies seen in $\bquark \to \squark \mup \mun$ and in $\bquark \to \cquark \tau \nu$ data has hinted at the violation of lepton flavour universality. …
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Symbolic computation of electron-proton to slepton-squark scattering cross sections based on a left-right supersymmetric extension of the standard model
… The Feynman diagrams for the neutralino-quark-squark and chargino-quark-squark are written down, and the production of sleptons and squarks resulting from the t-channel exchange of neutralinos and charginos in electron-proton scattering is analyzed. The symbolic programming language Mathematica …
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Search for Direct Top Squark Pair Production via the Fully Hadronic Final State from proton-proton Collisions at sqrt(s) = 13 TeV
A search for direct pair production of top squarks, the hypothetical supersymmetric partner to the top quark, in proton-proton collisions is presented for two scenarios each requiring jets and a large transverse momentum imbalance. The CMS detector observed the proton-proton collisions which were …
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Supersymmetric jets from Z boson decay and radiative decays of heavy quarkonium
… angular and energy distributions. We study the squark production and decay process at the parton level and carry out a Monte Carlo simulation of the fragmentation of the quarks into jets of hadrons. We also discuss methods which an experimentalist could use to determine the squark and photino …
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Testing the Standard Model with Top-Quark Production
… allowing for arbitrary left-right mixing of the squarks. We find that the correction is significant for several combinations of gluino and squark masses, e.g. +33% for m8= 200 GeV, m;-= mq= 75 GeV. Single-top-quark production at hadron colliders provides an opportunity to directly probe the …
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Supersymmetry Breaking: Models of Gauge Mediation with Gauge Messengers
… so that a mild splitting between scalar (squark and slepton) and gaugino masses exists. After this, a general argument showed that in fact gaugino masses are always significantly smaller than scalar masses if the universe is perturbatively stable. This arguments suggests that any viable …
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Suche nach der Produktion von einzelnen Leptoquarks oder Squarks in Elektron-Photon-Wechselwirkungen mit dem OPAL-Experiment
… Produktion von einzelnen Leptoquarks (LQ) und Squarks gesucht. <br>Leptoquarks bzw. Squarks sind neue Teilchen, die in Erweiterungstheorien des Standardmodells (SM) eingefuehrt werden: LQ kommen z.B. in Theorien vor, in denen die Leptonen und Quarks nicht mehr elementar sind und vermitteln …