First CDF Measurement of the Top Quark Charge using the Top Decay Products

Unalan, Z Gunay

doi:10.1016/j.nuclphysbps.2007.11.134

Cited by 2 publications

(2 citation statements)

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“…This task is complicated by the fact that the mixing through EWSB itself obscures the original representations of b 2 and b 3 , and the χ, while unusual in that it has charge −4/3, decays into W − b, looking much like a t ′ which produces a "wrong sign" bottom quark in its decay; measuring the charge of the final state b quark is extremely subtle, though perhaps not impossible [62,63].…”

Section: Mirror Quark Phenomenology At the Lhcmentioning

confidence: 99%

“…One could attempt to measure the charge of the b quark produced in a χ decay; this has been successfully employed by Tevatron experiments to establish the top quark charge [62,63], but depends sensitively on modeling the detector response correctly, and thus is beyond the scope of this work. Additional strategies could be to examine processes such as χχγ, which is expected to lead to a successful LHC measurement of the top quark charge [70].…”

Section: Jhep08(2010)052mentioning

confidence: 99%

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Beautiful mirrors at the LHC

Kumar

Shepherd

Tait

et al. 2010

J. High Energ. Phys.

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We explore the "Beautiful Mirrors" model, which aims to explain the measured value of A b F B , discrepant at the 2.9σ level. This scenario introduces vector-like quarks which mix with the bottom, subtly affecting its coupling to the Z. The spectrum of the new particles consists of two bottom-like quarks and a charge −4/3 quark, all of which have electroweak interactions with the third generation. We explore the phenomenology and discovery reach for these new particles at the LHC, exploring single mirror quark production modes whose rates are proportional to the same mixing parameters which resolve the A b F B anomaly. We find that for mirror quark masses 500 GeV, a 14 TeV LHC with 300 fb −1 is required to reasonably establish the scenario and extract the relevant mixing parameters.

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Section: Mirror Quark Phenomenology At the Lhcmentioning

confidence: 99%

Section: Jhep08(2010)052mentioning

confidence: 99%

Beautiful mirrors at the LHC

Kumar

Shepherd

Tait

et al. 2010

J. High Energ. Phys.

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Probing top anomalous couplings at the Tevatron and the Large Hadron Collider

Choudhury

Saha

2011

Pramana - J Phys

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Chromomagnetic and chromoelectric dipole interactions of the top quark are studied in a model independent framework. Limits are set on the scale of new physics that might lead to such contributions using latest Tevatron measurements of the tt cross-section. It is demonstrated that the invariant mass distribution is a sensitive probe. Prospects at the LHC are examined. It is shown that, for unitarized amplitudes, an increase in the LHC energy is of little importance, while the accumulation of luminosity plays a crucial role.

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First CDF Measurement of the Top Quark Charge using the Top Decay Products

Cited by 2 publications

References 2 publications

Beautiful mirrors at the LHC

Beautiful mirrors at the LHC

Probing top anomalous couplings at the Tevatron and the Large Hadron Collider

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