TY - JOUR
T1 - Search for Zgamma events with large missing transverse energy in $p \bar{p}$ collisions at sqrt(s)=1.96 TeV
AU - Schwanenberger, Christian
AU - Ding, Pengfei
AU - Head, Timothy
AU - Hesketh, Gavin
AU - Peters, Yvonne
AU - Petridis, Konstantinos
AU - Soldner-Rembold, Stefan
AU - Suter, Louise
AU - Takahashi, Maiko
AU - Vesterinen, Mika
AU - Wyatt, Terence
AU - Yang, Wan-Ching
AU - Zhao, Tianqi
AU - D0 Collaboration
PY - 2012
Y1 - 2012
N2 - We present the first search for supersymmetry (SUSY) in Zgamma final states with large missing transverse energy using data corresponding to an integrated luminosity of 6.2 fb-1 collected with the D0 experiment in ppbar collisions at sqrt(s)=1.96 TeV. This signature is predicted in gauge-mediated SUSY-breaking models, where the lightest neutralino is the next-to-lightest supersymmetric particle (NLSP) and is produced in pairs, possibly through decay from heavier supersymmetric particles. The NLSP can decay either to a Z boson or a photon and an associated gravitino that escapes detection. We exclude this model at the 95% C.L. for SUSY breaking scales of Lambda < 87 TeV, corresponding to neutralino masses of < 151 GeV.
AB - We present the first search for supersymmetry (SUSY) in Zgamma final states with large missing transverse energy using data corresponding to an integrated luminosity of 6.2 fb-1 collected with the D0 experiment in ppbar collisions at sqrt(s)=1.96 TeV. This signature is predicted in gauge-mediated SUSY-breaking models, where the lightest neutralino is the next-to-lightest supersymmetric particle (NLSP) and is produced in pairs, possibly through decay from heavier supersymmetric particles. The NLSP can decay either to a Z boson or a photon and an associated gravitino that escapes detection. We exclude this model at the 95% C.L. for SUSY breaking scales of Lambda < 87 TeV, corresponding to neutralino masses of < 151 GeV.
U2 - 10.1103/PhysRevD.86.071701
DO - 10.1103/PhysRevD.86.071701
M3 - Article
SN - 1550-2368
SN - 2470-0029
VL - D86
JO - Phys.Rev.
JF - Phys.Rev.
IS - 7
M1 - 071701
ER -