Search for a narrow $t\bar t$ resonance in $p\bar p$ collisions at $\sqrt s=1.96\ \text{TeV}$
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2012
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American Physical Society
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Abstract
We report a search for a narrow $t\bar t$ resonance that decays into a $\text{lepton+jets}$ final state based on an integrated luminosity of $5.3â\text{âfb}^{â1}$ of proton-antiproton collisions at $\sqrt s=1.96\ \text{TeV}$ collected by the D0 Collaboration at the Fermilab Tevatron Collider. We set upper limits on the production cross section of such a resonance multiplied by its branching fraction to $t\bar t$. We exclude a leptophobic topcolor $Z^â²$ at the 95% confidence level for masses below 835 GeV (940 GeV) if its width is 1.2% (3%) of its mass. We also exclude color octet vector bosons (colorons) with masses below 775 GeV.
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Abazov, V. M., Abbott, B., Acharya, B. S., Adams, M., Adams, T., Alexeev, G. D., . . . Zivkovic, L. (2012). Search for a narrow $t\bar t$ resonance in $p\bar p$ collisions at $\sqrt s=1.96\ \text{TeV}$. Physical Review D - Particles, Fields, Gravitation and Cosmology, 85(5), 051101. http://dx.doi.org/10.1103/PhysRevD.85.051101.
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© 2012 American Physical Society.
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