Collider signatures for new T-parity-odd quarks in little Higgs models

Journal Article · Tue May 01 04:00:00 EDT 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.75.091701· OSTI ID:21020457

Carena, Marcela; Hubisz, Jay ^[1]; Perelstein, Maxim ^[2]; Verdier, Patrice ^[3]

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1. Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
2. Laboratory of Elementary Particle Physics, Department of Physics, Cornell University, Ithaca, New York 14853 (United States)
3. Institut de Physique Nucleaire de Lyon, IN2P3-CNRS, Universite Lyon 1, Villeurbanne (France)

Little Higgs models with T Parity contain new vectorlike fermions, the T-odd quarks or 'TOQ's', which can be produced at hadron colliders with a QCD-strength cross section. Events with two acoplanar jets and large missing transverse energy provide a simple signature of TOQ production. We show that searches for this signature with the Tevatron Run II data can probe a significant part of the Little Higgs model parameter space not accessible to previous experiments, exploring TOQ masses up to about 400 GeV. This reach covers parts of the parameter space where the lightest T-odd particle can account for the observed dark matter relic abundance. We also comment on the prospects for this search at the Large Hadron Collider (LHC)

• OSTI ID: 21020457
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 9 Vol. 75; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CERN LHC
CROSS SECTIONS
FERMILAB TEVATRON
GEV RANGE
HADRON-HADRON INTERACTIONS
HADRONS
HIGGS MODEL
JET MODEL
NONLUMINOUS MATTER
PARITY
QUANTUM CHROMODYNAMICS
QUARKS
REST MASS
TRANSVERSE ENERGY