Signals of supersymmetry with inaccessible first two families at the Large Hadron Collider
- Regional Centre for Accelerator-based Particle Physics, Harish-Chandra Research Institute, Chhatnag Road, Jhunsi, Allahabad-211 019 (India)
We investigate the signals of supersymmetry in a scenario where only the third family squarks and sleptons can be produced at the Large Hadron Collider, in addition to the gluino, charginos, and neutralinos. The final states in such cases are marked by a multiplicity of top or bottom quarks. We study, in particular, the case when the top squark, bottom squark, and gluino masses are near the TeV scale due to which, the final state t's and b's are very energetic. We point out the difficulty in b tagging and identifying energetic tops and suggest several event selection criteria which allow the signals to remain significantly above the standard model background. We show that such scenarios with gluino mass up to 2 TeV can be successfully probed at the Large Hadron Collider. Information on tan{beta} can also be obtained by looking at associated Higgs production in the cascades of accompanying neutralinos. We also show that a combined analysis of event rates in the different channels and the effective mass distribution allows one to differentiate this scenario from the one where all three sfermion families are accessible.
- OSTI ID:
- 21322633
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 80, Issue 5; Other Information: DOI: 10.1103/PhysRevD.80.055019; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Searches for heavy long-lived charged particles with the ATLAS detector in proton-proton collisions at √s = 8 TeV
Search for supersymmetry in final states with two same-sign or three leptons and jets using 36 fb–1 of $ \sqrt{s}=13 $ TeV $pp$ collision data with the ATLAS detector