Top-antitop and Top-top Resonances in the Dilepton Channel at the CERN LHC - INSPIRE

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Top-antitop and Top-top Resonances in the Dilepton Channel at the CERN LHC

Yang Bai
(
- Fermilab
)
,
Zhenyu Han
(
- UC, Davis
)

Sep, 2008

18 pages

Published in:

JHEP 04 (2009) 056

e-Print:

0809.4487 [hep-ph]

DOI:

10.1088/1126-6708/2009/04/056

Report number:

FERMILAB-PUB-08-354-T

View in:

ADS Abstract Service

reference search65 citations

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Abstract: (arXiv)

We perform a model-independent study for top-antitop and top-top resonances in the dilepton channel at the Large Hadtron Collider. In this channel, we can solve the kinematic system to obtain the momenta of all particles including the two neutrinos, and hence the resonance mass and spin. For discovering top-antitop resonances, the dilepton channel is competitive to the semileptonic channel because of the good resolution of lepton momentum measurement and small standard model backgrounds. Moreover, the charges of the two leptons can be identified, which makes the dilepton channel advantageous for discovering top-top resonances and for distinguishing resonance spins. We discuss and provide resolutions for difficulties associated with heavy resonances and highly boosted top quarks.

graviton
Randall-Sundrum model
p p: inclusive reaction
top
anti-top
top: pair production
top: associated production
top: decay
lepton: pair production
resonance: (2quark)

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