TY - JOUR
T1 - Search for an excess of events with an identical flavour lepton pair and significant missing transverse momentum in vs = 7 TeV proton-proton collisions with the ATLAS detector
AU - Aad....[et al.], G.
AU - Dam, Mogens
AU - Hansen, John Renner
AU - Hansen, Jørgen Beck
AU - Hansen, Jørn Dines
AU - Hansen, Peter Henrik
AU - Jørgensen, Morten Dam
AU - Klinkby, Esben Bryndt
AU - Petersen, Troels Christian
AU - Xella, Stefania
AU - Boelaert, Nele Maria Philomena
AU - Kittelmann, Thomas Høvring
PY - 2011/7/1
Y1 - 2011/7/1
N2 - Results are presented of a search for particles decaying into final states with significant missing transverse momentum and exactly two identical flavour leptons (e, μ) of opposite charge in √s = TeV collisions at the Large Hadron Collider. This channel is particularly sensitive to supersymmetric particle cascade decays producing flavour correlated lepton pairs. Flavour uncorrelated backgrounds are subtracted using a sample of opposite flavour lepton pair events. Observation of an excess beyond Standard Model expectations following this subtraction procedure would offer one of the best routes to measuring the masses of supersymmetric particles. In a data sample corresponding to an integrated luminosity of 35 pb-1 no such excess is observed. Model-independent limits are set on the contribution to these final states from supersymmetry and are used to exclude regions of a phenomenological supersymmetric parameter space.
AB - Results are presented of a search for particles decaying into final states with significant missing transverse momentum and exactly two identical flavour leptons (e, μ) of opposite charge in √s = TeV collisions at the Large Hadron Collider. This channel is particularly sensitive to supersymmetric particle cascade decays producing flavour correlated lepton pairs. Flavour uncorrelated backgrounds are subtracted using a sample of opposite flavour lepton pair events. Observation of an excess beyond Standard Model expectations following this subtraction procedure would offer one of the best routes to measuring the masses of supersymmetric particles. In a data sample corresponding to an integrated luminosity of 35 pb-1 no such excess is observed. Model-independent limits are set on the contribution to these final states from supersymmetry and are used to exclude regions of a phenomenological supersymmetric parameter space.
U2 - 10.1140/epjc/s10052-011-1647-9
DO - 10.1140/epjc/s10052-011-1647-9
M3 - Journal article
SN - 1434-6044
VL - 71
SP - 1647
JO - The European Physical Journal C: Particles and Fields
JF - The European Physical Journal C: Particles and Fields
IS - 7
ER -