Search for Scalar Charm Quark Pair Production inppCollisions ats=8 TeVwith the ATLAS Detector

2015/01/31 by G. Aad, ATLAS Collaboration, B. Abbott +97 · 1 citation
Physics and Astronomy · #Charm (quantum number) #Charm quark #Collider Detector at Fermilab #High-Energy Particle Collisions Research #Large Hadron Collider #Muon #Neutralino #Nuclear physics #Pair production #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quark #Scalar (mathematics) #Tevatron #hep-ex

paper · pdf · doi:10.1103/physrevlett.114.161801

published as Phys. Rev. Lett. 114, 161801 (2015) · Comments: 6 pages plus author list + cover page (20 pages total), 2 figures, 1 table, submitted to Phys. Rev. Lett., All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2014-03

openalex publication_date 2015/04/22 · arxiv created 2015/04/28 · arxiv updated 2015/04/29 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

Abstract

The results of a dedicated search for pair production of scalar partners of charm quarks are reported. The search is based on an integrated luminosity of 20.3 fb^-1 of pp collisions at sqrt[s]=8 TeV recorded with the ATLAS detector at the LHC. The search is performed using events with large missing transverse momentum and at least two jets, where the two leading jets are each tagged as originating from c quarks. Events containing isolated electrons or muons are vetoed. In an R-parity-conserving minimal supersymmetric scenario in which a single scalar-charm state is kinematically accessible, and where it decays exclusively into a charm quark and a neutralino, 95% confidence-level upper limits are obtained in the scalar-charm-neutralino mass plane such that, for neutralino masses below 200 GeV, scalar-charm masses up to 490 GeV are excluded.

Citations

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