Multilepton signals of gauge mediated supersymmetry breaking at the LHC
Artikel i vetenskaplig tidskrift, 2014

We investigate multilepton LHC signals arising from electroweak processes involving sleptons. We consider the framework of general gauge mediated supersymmetry breaking, focusing on models where the low mass region of the superpartner spectrum consists of the three generations of charged sleptons and the nearly massless gravitino. We demonstrate how such models can provide an explanation for the anomalous four lepton events recently observed by the CMS Collaboration, while satisfying other existing experimental constraints. The best fit to the CMS data is obtained for a selectron/smuon mass of around 145 GeV and a stau mass of around 90 GeV. These models also give rise to final states with more than four leptons, offering alternative channels in which they can be probed and we estimate the corresponding production rates at the LHC. (c) 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license

BOSON

PHYSICS

STANDARD MODEL

Supersymmetry breaking

Gauge mediation

HADRON COLLIDERS

SEARCH

RESUMMATION

SLEPTON-PAIR PRODUCTION

MASS

PARTICLE

Författare

J. D'Hondt

Vrije Universiteit Brüssel (VUB)

International Solvay Institute for Physics and Chemistry

K. De Causmaecker

Vrije Universiteit Brüssel (VUB)

International Solvay Institute for Physics and Chemistry

European Organization for Nuclear Research

B. Fuks

Universite de Strasbourg

European Organization for Nuclear Research

A. Mariotti

University of Durham

K. Mawatari

International Solvay Institute for Physics and Chemistry

Vrije Universiteit Brüssel (VUB)

Christoffer Petersson

Chalmers, Fundamental fysik

D. Redigolo

Universite de Strasbourg

Chalmers University of Technology

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

0370-2693 (ISSN)

Vol. 731 7-12

Ämneskategorier

Fysik

DOI

10.1016/j.physletb.2014.02.016