First Direct Bound on the Total Width of the Top Quark in $p \barp$ Collisions at $\sqrts=$ 1.96-TeV

CDF Collaboration; Victoria Martin

doi:10.1103/PhysRevLett.102.042001

First Direct Bound on the Total Width of the Top Quark in $p \barp$ Collisions at $\sqrts=$ 1.96-TeV

CDF Collaboration, Victoria Martin

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We present the first direct experimental bound on the total decay width of the top quark using 955pb^-1 of the Tevatron's ppbar collisions recorded by the Collider Detector at Fermilab. We identify 253 top-antitop pair candidate events. The distribution of reconstructed top quark mass from these events is fitted to templates representing different values of the top quark width. Using a confidence interval based on likelihood ratio ordering, we extract an upper limit at 95% C.L. of Gamma_t

Original language	English
Journal	Physical Review Letters
Volume	102
DOIs	https://doi.org/10.1103/PhysRevLett.102.042001
Publication status	Published - 2009

Keywords / Materials (for Non-textual outputs)

hep-ex

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10.1103/PhysRevLett.102.042001

http://arxiv.org/abs/0808.2167

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title = "First Direct Bound on the Total Width of the Top Quark in $p \barp$ Collisions at $\sqrts=$ 1.96-TeV",

abstract = "We present the first direct experimental bound on the total decay width of the top quark using 955pb^-1 of the Tevatron's ppbar collisions recorded by the Collider Detector at Fermilab. We identify 253 top-antitop pair candidate events. The distribution of reconstructed top quark mass from these events is fitted to templates representing different values of the top quark width. Using a confidence interval based on likelihood ratio ordering, we extract an upper limit at 95% C.L. of Gamma_t ",

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author = "{CDF Collaboration} and Victoria Martin",

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AB - We present the first direct experimental bound on the total decay width of the top quark using 955pb^-1 of the Tevatron's ppbar collisions recorded by the Collider Detector at Fermilab. We identify 253 top-antitop pair candidate events. The distribution of reconstructed top quark mass from these events is fitted to templates representing different values of the top quark width. Using a confidence interval based on likelihood ratio ordering, we extract an upper limit at 95% C.L. of Gamma_t

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DO - 10.1103/PhysRevLett.102.042001

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JO - Physical Review Letters

JF - Physical Review Letters

ER -

First Direct Bound on the Total Width of the Top Quark in $p \barp$ Collisions at $\sqrts=$ 1.96-TeV

Abstract

Keywords / Materials (for Non-textual outputs)

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