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Measuring the Higgs boson mass in dileptonic W-boson decays at hadron colliders
High Energy Physics - Phenomenology · Submitted 27 Feb 2009
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We remove that approximation, without introducing any cost in complexity, and demonstrate that the new variable is a clear improvement over the old: its performance is never worse, and in some cases (particularly the high Higgs mass region) it might reduce the fit uncertainty on the Higgs mass in that channel by a factor approaching two.
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The abstract, sentence by sentence
It is expected that hadron collider measurements of the Higgs boson mass using the decay h -> W^+W^-, followed by the leptonic decay of each W-boson, will be performed by fitting the shape of a distribution which is sensitive to the Higgs mass. We demonstrate that the variable most commonly used to measure the Higgs mass in this channel is not optimal as it contains an unnecessary and even counter-productive approximation. We remove that approximation, without introducing any cost in complexity, and demonstrate that the new variable is a clear improvement over the old: its performance is never worse, and in some cases (particularly the high Higgs mass region) it might reduce the fit uncertainty on the Higgs mass in that channel by a factor approaching two.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | It is expected that hadron collider measurements of the Higgs boson mass using the decay h -> W^+W^-, followed by the leptonic decay of each W-boson, will be performed by fitting the shape of a distribution which is sensitive to the Higgs mass. | background 1.00 | 0.05 | 0.04 | hedged possibility 0.87 |
| s1 | We demonstrate that the variable most commonly used to measure the Higgs mass in this channel is not optimal as it contains an unnecessary and even counter-productive approximation. | gap 0.44 | 0.79 | 0.41 | asserted 1.00 |
| s2 | We remove that approximation, without introducing any cost in complexity, and demonstrate that the new variable is a clear improvement over the old: its performance is never worse, and in some cases (particularly the high Higgs mass region) it might reduce the fit uncertainty on the Higgs mass in that channel by a factor approaching two. | result 0.59 | 0.95 | 0.85 | asserted 0.89 |
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The paper
Original abstract
It is expected that hadron collider measurements of the Higgs boson mass using the decay h -> W^+W^-, followed by the leptonic decay of each W-boson, will be performed by fitting the shape of a distribution which is sensitive to the Higgs mass. We demonstrate that the variable most commonly used to measure the Higgs mass in this channel is not optimal as it contains an unnecessary and even counter-productive approximation. We remove that approximation, without introducing any cost in complexity, and demonstrate that the new variable is a clear improvement over the old: its performance is never worse, and in some cases (particularly the high Higgs mass region) it might reduce the fit uncertainty on the Higgs mass in that channel by a factor approaching two.
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References
How the literature uses it
23 arXiv papers cite this in 33 sentences
Papers citing it · 22 sentences without a confident label
Uses its method or tool 2 papers
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After this preselection, the two taus are enforced to be compatible with the decay of a Higgs boson by means of the $m_ττ^Higgs-bound$ and $m_T^True$ variables [ref] .
Scrutinizing the Higgs quartic coupling at a future 100 TeV proton-proton collider with taus and b-jets · Signal selection · 1.00
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One can further employ the transverse mass of the leptonic system while ignoring the unknown $m_νν$ value and the longitudinal momentum components of neutrinos, [equation] which is bounded from above by $m_h$ [ref] .
Resonant Higgs boson pair production in the $hh\rightarrow b\bar{b} \; WW \rightarrow b\bar{b} \ell^+ \nu \ell^- \bar\nu$ decay channel · Detecting the heavy Higgs in $H →hh$ at the LHC · 0.88
Compares with it 1 paper
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Our results appears to be better than (or comparable to) those of [ref] .
Reconstructing the Higgs boson in dileptonic W decays at hadron collider · Conclusions · 1.00
Cites it as support 1 paper
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This connection in fact was the primary motivation for introducing the $m_T^true$ variable in the first place [ref] .
Guide to transverse projections and mass-constraining variables · The $m_T^true$ transverse mass variable · 0.96
Cites it as background 6 papers
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One then often considers the transverse mass of the $W$ pair, $M_T(WW)$, defined in Eq. ([ref]), as the main observable to probe the Higgs signal event [ref] .
Measuring the Higgs boson mass with transverse mass variables · Distinctive features of the transverse mass variables · 0.85
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It has been claimed in the literature that it might be possible to measure the particle masses by constructing the transverse mass variables even if there are several invisible particles in the final state [ref] .
Reconstructing the heavy resonance at hadron colliders · Introduction · 0.83
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Often the minimum of the function itself becomes a useful kinematic variable — some well-known examples include the Cambridge $M_T2$ variable [ref] and its variants [ref] , the $√(s)_min$ variable [ref] , a variety of constrained transverse mass variables [ref] , the $M_CT2$ variable [ref] , the $M_2C$ variable [ref] , the MAOS method [ref] , the $M_2$ class of variables [ref] , etc.
Kinematic Focus Point Method for Particle Mass Measurements in Missing Energy Events · Introduction · 0.87
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