Supersymmetry phenomenology and the nature of the lightest supersymmetric particle

1988 ◽  
Vol 37 (3) ◽  
pp. 784-798 ◽  
Author(s):  
Manuel Drees ◽  
C. S. Kim ◽  
Xerxes Tata
Keyword(s):  
Supersymmetry Phenomenology ◽  
Supersymmetric Particle

scholarly journals Search for squarks and gluinos in final states with jets and missing transverse momentum using 139 fb−1 of $$ \sqrt{s} $$ = 13 TeV pp collision data with the ATLAS detector

2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
G. Aad ◽  
◽  
B. Abbott ◽  
D. C. Abbott ◽  
A. Abed Abud ◽  
...  
Keyword(s):  
Transverse Momentum ◽  
Hadron Collider ◽  
Atlas Detector ◽  
Simplified Model ◽  
Supersymmetric Particle ◽  
Final States ◽  
Proton Proton ◽  
Missing Transverse Momentum ◽  
First And Second Generation ◽  
Proton Proton Collisions

Abstract A search for the supersymmetric partners of quarks and gluons (squarks and gluinos) in final states containing jets and missing transverse momentum, but no electrons or muons, is presented. The data used in this search were recorded by the ATLAS experiment in proton-proton collisions at a centre-of-mass energy of $$ \sqrt{s} $$ s = 13 TeV during Run 2 of the Large Hadron Collider, corresponding to an integrated luminosity of 139 fb−1. The results are interpreted in the context of various R-parity-conserving models where squarks and gluinos are produced in pairs or in association and a neutralino is the lightest supersymmetric particle. An exclusion limit at the 95% confidence level on the mass of the gluino is set at 2.30 TeV for a simplified model containing only a gluino and the lightest neutralino, assuming the latter is massless. For a simplified model involving the strong production of mass-degenerate first- and second-generation squarks, squark masses below 1.85 TeV are excluded if the lightest neutralino is massless. These limits extend substantially beyond the region of supersymmetric parameter space excluded previously by similar searches with the ATLAS detector.

scholarly journals Measuring supersymmetric particle masses at the LHC in scenarios with baryon-number R-parity violating couplings

2001 ◽  
Vol 2001 (03) ◽  
pp. 048-048 ◽  
Author(s):  
Ben C Allanach ◽  
Alan J Barr ◽  
Lee Drage ◽  
Christopher G Lester ◽  
Debbie Morgan ◽  
...  
Keyword(s):  
Baryon Number ◽  
Supersymmetric Particle

Supersymmetric-particle production at electron-positron colliders

1987 ◽  
Vol 35 (7) ◽  
pp. 2110-2123 ◽  
Author(s):  
Xerxes Tata ◽  
Duane A. Dicus
Keyword(s):  
Particle Production ◽  
Supersymmetric Particle ◽  
Electron Positron

scholarly journals PROBING GRAVITATIONAL INTERACTIONS OF ELEMENTARY PARTICLES

2004 ◽  
Vol 13 (10) ◽  
pp. 2355-2359 ◽  
Author(s):  
JONATHAN L. FENG ◽  
ARVIND RAJARAMAN ◽  
FUMIHIRO TAKAYAMA
Keyword(s):  
Dark Matter ◽  
Early Universe ◽  
Particle Physics ◽  
Gravitational Constant ◽  
Planck Scale ◽  
Elementary Particles ◽  
Supersymmetric Particle ◽  
Small Scales ◽  
Physics Experiments ◽  
Shed Light

The gravitational interactions of elementary particles are suppressed by the Planck scale M*~1018 GeV and are typically expected to be far too weak to be probed by experiments. We show that, contrary to conventional wisdom, such interactions may be studied by particle physics experiments in the next few years. As an example, we consider conventional supergravity with a stable gravitino as the lightest supersymmetric particle. The next-lightest supersymmetric particle (NLSP) decays to the gravitino through gravitational interactions after about a year. This lifetime can be measured by stopping NLSPs at colliders and observing their decays. Such studies will yield a measurement of Newton's gravitational constant on unprecedentedly small scales, shed light on dark matter, and provide a window on the early universe.

scholarly journals Flavor physics at large tanβwith a binolike lightest supersymmetric particle

2007 ◽  
Vol 75 (11) ◽  
Author(s):  
G. Isidori ◽  
F. Mescia ◽  
P. Paradisi ◽  
D. Temes
Keyword(s):  
Flavor Physics ◽  
Supersymmetric Particle

scholarly journals Realistic Calculations for Cold Dark Matter Detection Rates

2020 ◽  
Vol 13 ◽  
pp. 283
Author(s):  
T. S. Kosmas ◽  
M. Kortelainen ◽  
J. Suhonen ◽  
J. Toivanen
Keyword(s):  
Dark Matter ◽  
Nuclear Structure ◽  
Large Scale ◽  
Cold Dark Matter ◽  
Scattering Problem ◽  
Realistic Model ◽  
Supersymmetric Particle ◽  
Detection Rates ◽  
Model Spaces ◽  
Event Rates

The scattering of the cold dark matter (CDM) candidate LSP (Lightest Supersymmetric Particle) off nuclei is investigated. We focus on the nuclear-structure aspects of the LSP-nucleus scattering problem and computed the associated event rates as well as the annual modulation signals for the 23Na, 71Ga, 73Ge and 127I CDM detectors by using the nuclear shell model in realistic model spaces and exploiting microscopic effective two-body interactions. Large-scale computations had to be performed in order to achieve convergence of the results. The relevance of the spin-dependent and coherent channels for the event rates is discussed, from both the nuclear structure and the SUSY-model viewpoints.

scholarly journals Same-sign trileptons as a signal of sneutrino lightest supersymmetric particle

2016 ◽  
Vol 754 ◽  
pp. 14-17 ◽  
Author(s):  
Arindam Chatterjee ◽  
Nabarun Chakrabarty ◽  
Biswarup Mukhopadhyaya
Keyword(s):  
Supersymmetric Particle
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