Alternative Interpretation of the Tevatron Top Events

Abstract

We propose an alternative interpretation of the top events discovered at the Tevatron in 1995. Given that the charge of the $b$ quark jet cannot be measured for the whole sample with certainty, the signal can be due to a quark of charge -4/3 at the reported mass, i.e. 174 GeV, while the top quark is actually heavier, say above 230 GeV. We point out in this paper that such a scenario is actually hinted at by the latest precision electroweak measurements of $Z$ decay. To rule out this possibility in the future, the $b$ quark jet charge analysis has to become definitive, or the single "top" production cross section has to be measured.

11 pages, slightly revised in acknowledgement

References in corpus (11)

• Observation of Top Quark Production in Pbar-P Collisions
• Observation of the Top Quark
• Pathways to Naturally Small Neutrino Masses
• Neutrino Masses and Leptogenesis with Heavy Higgs Triplets
• Single top quarks at the Fermilab Tevatron
• Electroweak Precision Tests: A Concise Review
• On the Scale Uncertainties in the $B\to X_s\gamma$ Decay
• Making the small oblique parameters large
• Indications for an Anomalous Right-Handed Coupling of the b-Quark from a Model Independent Analysis of LEP and SLD Data on Z-Decays
• Shifting $R_b$ with $A_{FB}^b$
• Solutions to the R_b, R_c and alpha_s puzzles by Vector Fermions

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