TY - JOUR

T1 - Search for 3- and 4-body decays of the scalar top quark in proton-antiproton collisions at sqrt {s}=1.8 TeV.

AU - DØ Collaboration, The

AU - Bertram, I. A.

PY - 2004/2/19

Y1 - 2004/2/19

N2 - We have searched for the signature of 3- and 4-body decays of pair-produced scalar top quarks (stop) in the inclusive final state containing an electron, a muon, and significant missing transverse energy using a sample of events corresponding to 108.3 pb−1 of data collected with the DØ detector at Fermilab. The search is done in the framework of the minimal supersymmetric standard model assuming that the neutralino ( ) is the lightest supersymmetric particle and is stable. No evidence for a signal is found and we derive cross-section upper limits as a function of stop ( ) and neutralino masses in different decay scenarios leading to the final state.

AB - We have searched for the signature of 3- and 4-body decays of pair-produced scalar top quarks (stop) in the inclusive final state containing an electron, a muon, and significant missing transverse energy using a sample of events corresponding to 108.3 pb−1 of data collected with the DØ detector at Fermilab. The search is done in the framework of the minimal supersymmetric standard model assuming that the neutralino ( ) is the lightest supersymmetric particle and is stable. No evidence for a signal is found and we derive cross-section upper limits as a function of stop ( ) and neutralino masses in different decay scenarios leading to the final state.

U2 - 10.1016/j.physletb.2003.12.001

DO - 10.1016/j.physletb.2003.12.001

M3 - Journal article

VL - 581

SP - 147

EP - 155

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 3-4

ER -