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Top Quark Mass Measurement from Dilepton Events at CDF II with the Matrix-Element Method
High Energy Physics - Experiment · Submitted 30 May 2006
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim In a data sample with integrated luminosity of 340 pb$^{-1}$, we observe 33 candidate events and measure $M_{top} = 165.2 \pm 6.1(\textrm{stat.}) \pm 3.4(\textrm{syst.}) \mathrm{~GeV}/c^2.$ This measurement represents the first application of this method to events with two charged leptons and is the most precise single measurement of the top quark mass in this channel.
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The abstract, sentence by sentence
We describe a measurement of the top quark mass using events with two charged leptons collected by the CDF II detector from $p\bar{p}$ collisions with $\sqrt s = 1.96$ TeV at the Fermilab Tevatron. The likelihood in top mass is calculated for each event by convoluting the leading order matrix element describing $q\bar{q} \to t\bar{t} \to b\ell\nu_{\ell}\bar{b}\ell'\nu_{\ell'}$ with detector resolution functions. The presence of background events in the data sample is modeled using similar calculations involving the matrix elements for major background processes. In a data sample with integrated luminosity of 340 pb$^{-1}$, we observe 33 candidate events and measure $M_{top} = 165.2 \pm 6.1(\textrm{stat.}) \pm 3.4(\textrm{syst.}) \mathrm{~GeV}/c^2.$ This measurement represents the first application of this method to events with two charged leptons and is the most precise single measurement of the top quark mass in this channel.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We describe a measurement of the top quark mass using events with two charged leptons collected by the CDF II detector from $p\bar{p}$ collisions with $\sqrt s = 1.96$ TeV at the Fermilab Tevatron. | contribution 0.81 | 0.94 | 0.04 | asserted 0.99 |
| s1 | The likelihood in top mass is calculated for each event by convoluting the leading order matrix element describing $q\bar{q} \to t\bar{t} \to b\ell\nu_{\ell}\bar{b}\ell'\nu_{\ell'}$ with detector resolution functions. | method 1.00 | 0.89 | 0.02 | asserted 1.00 |
| s2 | The presence of background events in the data sample is modeled using similar calculations involving the matrix elements for major background processes. | method 1.00 | 0.79 | 0.02 | asserted 1.00 |
| s3 | In a data sample with integrated luminosity of 340 pb$^{-1}$, we observe 33 candidate events and measure $M_{top} = 165.2 \pm 6.1(\textrm{stat.}) \pm 3.4(\textrm{syst.}) \mathrm{~GeV}/c^2.$ This measurement represents the first application of this method to events with two charged leptons and is the most precise single measurement of the top quark mass in this channel. | result 1.00 | 0.98 | 0.95 | asserted 1.00 |
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The paper
Original abstract
We describe a measurement of the top quark mass using events with two charged leptons collected by the CDF II detector from $p\bar{p}$ collisions with $\sqrt s = 1.96$ TeV at the Fermilab Tevatron. The likelihood in top mass is calculated for each event by convoluting the leading order matrix element describing $q\bar{q} \to t\bar{t} \to b\ell\nu_{\ell}\bar{b}\ell'\nu_{\ell'}$ with detector resolution functions. The presence of background events in the data sample is modeled using similar calculations involving the matrix elements for major background processes. In a data sample with integrated luminosity of 340 pb$^{-1}$, we observe 33 candidate events and measure $M_{top} = 165.2 \pm 6.1(\textrm{stat.}) \pm 3.4(\textrm{syst.}) \mathrm{~GeV}/c^2.$ This measurement represents the first application of this method to events with two charged leptons and is the most precise single measurement of the top quark mass in this channel.
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References
How the literature uses it
7 arXiv papers cite this in 9 sentences
Papers citing it · 4 sentences without a confident label
Cites it as background 5 papers
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Pioneered at the Tevatron (e.g. [ref] ), the MEM is widely used today (e.g. [ref] ).
The Matrix Element Method at next-to-leading order accuracy · Leading order · 0.87
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[ref] ) the MEM has been widely used since.
Single top-quark production with the Matrix Element Method in next-to-leading order accuracy · The MEM in a nutshell · 0.99
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In the early days of the top-quark discovery the was used to determine the top-quark mass based on $𝒪(100)$ events only [ref] .
The Matrix Element Method at next-to-leading order QCD for hadronic collisions: Single top-quark production at the LHC as an example application · Introduction · 0.92
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