Published January 8, 2010 | Version v1
Journal article Metadata-only

Search for Supersymmetry with Gauge-Mediated Breaking in Diphoton Events with Missing Transverse Energy at CDF II

Creators

  • 1. Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki (Finland)
  • 2. Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637 (United States)

Description

We present the results of a search for supersymmetry with gauge-mediated breaking and χ-tilde10→γG-tilde in the γγ+missing transverse energy final state. In 2.6±0.2 fb-1 of pp collisions at √(s)=1.96 TeV recorded by the CDF II detector we observe no candidate events, consistent with a standard model background expectation of 1.4±0.4 events. We set limits on the cross section at the 95% C.L. and place the world's best limit of 149 GeV/c2 on the χ-tilde10 mass at τχ-tilde10<<1 ns. We also exclude regions in the χ-tilde10 mass-lifetime plane for τχ-tilde10< or approx.2 ns.

Additional details

Identifiers

DOI
10.1103/PhysRevLett.104.011801;
arXiv
arXiv:0910.3606v2;

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
104
Journal Issue
1
Journal Page Range
p. 011801-011801.8
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
41115486
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
CROSS SECTIONS; FERMILAB COLLIDER DETECTOR; GAUGE INVARIANCE; GEV RANGE; PROTON-PROTON INTERACTIONS; STANDARD MODEL; SUPERSYMMETRY; SYMMETRY BREAKING; TEV RANGE; TRANSVERSE ENERGY
Descriptors DEC
BARYON-BARYON INTERACTIONS; ENERGY; ENERGY RANGE; FIELD THEORIES; GRAND UNIFIED THEORY; HADRON-HADRON INTERACTIONS; INTERACTIONS; INVARIANCE PRINCIPLES; KINETIC ENERGY; MATHEMATICAL MODELS; MEASURING INSTRUMENTS; NUCLEON-NUCLEON INTERACTIONS; PARTICLE INTERACTIONS; PARTICLE MODELS; PROTON-NUCLEON INTERACTIONS; QUANTUM FIELD THEORY; RADIATION DETECTORS; SYMMETRY; UNIFIED GAUGE MODELS

Optional Information

Notes
(c) 2010 The American Physical Society