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Single Top Events as a Source of Light Charged Higgs in the Fully Hadronic Final State at LHC
High Energy Physics - Phenomenology · Submitted 9 May 2013
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim It is shown that this process has the potential to exclude large areas of parameter space, while with enough data, a 5 sigma discovery would also be possible.
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The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.
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The abstract, sentence by sentence
The single top production proceeds through different channels at LHC. The t-channel production which has a cross section at the level of one third of the ttbar, can be regarded as a source of light charged Higgs boson through top quark decay to charged Higgs. Due to the low jet multiplicity and characteristic kinematic features of this process, a signal selection can be designed to extract charged Higgs signal from the background processes. In this paper, taking MSSM as the theoretical framework, The light charged Higgs signal from single top events is analyzed. The charged Higgs is assumed to decay to tau nu and the hadronic decay of tau leptons is analyzed. Different charged Higgs mass hypotheses are analyzed and a scan over the parameter space (mH+,tanbeta) is performed. It is shown that this process has the potential to exclude large areas of parameter space, while with enough data, a 5 sigma discovery would also be possible. Finally 95% C.L. exclusion and 5 sigma contours are provided for different integrated luminosities of LHC.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | The single top production proceeds through different channels at LHC. | background 1.00 | 0.06 | 0.01 | asserted 1.00 |
| s1 | The t-channel production which has a cross section at the level of one third of the ttbar, can be regarded as a source of light charged Higgs boson through top quark decay to charged Higgs. | background 0.74 | 0.15 | 0.04 | hedged possibility 0.71 |
| s2 | Due to the low jet multiplicity and characteristic kinematic features of this process, a signal selection can be designed to extract charged Higgs signal from the background processes. | method 0.92 | 0.42 | 0.04 | hedged possibility 0.55 |
| s3 | In this paper, taking MSSM as the theoretical framework, The light charged Higgs signal from single top events is analyzed. | contribution 0.92 | 0.85 | 0.03 | asserted 0.89 |
| s4 | The charged Higgs is assumed to decay to tau nu and the hadronic decay of tau leptons is analyzed. | method 0.92 | 0.65 | 0.02 | asserted 0.97 |
| s5 | Different charged Higgs mass hypotheses are analyzed and a scan over the parameter space (mH+,tanbeta) is performed. | method 0.91 | 0.91 | 0.05 | asserted 0.90 |
| s6 | It is shown that this process has the potential to exclude large areas of parameter space, while with enough data, a 5 sigma discovery would also be possible. | result 0.75 | 0.89 | 0.83 | hedged possibility 0.52 |
| s7 | Finally 95% C.L. exclusion and 5 sigma contours are provided for different integrated luminosities of LHC. | result 0.83 | 0.93 | 0.21 | asserted 0.99 |
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The paper
Original abstract
The single top production proceeds through different channels at LHC. The t-channel production which has a cross section at the level of one third of the ttbar, can be regarded as a source of light charged Higgs boson through top quark decay to charged Higgs. Due to the low jet multiplicity and characteristic kinematic features of this process, a signal selection can be designed to extract charged Higgs signal from the background processes. In this paper, taking MSSM as the theoretical framework, The light charged Higgs signal from single top events is analyzed. The charged Higgs is assumed to decay to tau nu and the hadronic decay of tau leptons is analyzed. Different charged Higgs mass hypotheses are analyzed and a scan over the parameter space (mH+,tanbeta) is performed. It is shown that this process has the potential to exclude large areas of parameter space, while with enough data, a 5 sigma discovery would also be possible. Finally 95% C.L. exclusion and 5 sigma contours are provided for different integrated luminosities of LHC.
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How the literature uses it
2 arXiv papers cite this in 2 sentences
What it cites · 10 sentences without a confident label
Uses the method or tool of 4 papers
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For the signal and $tt̅$ cross sections MCFM 6.1 [ref] is used while ALPGEN [ref] is used for W+2jets generation and cross section calculation with a kinematic preselection applied as in Eq. [ref].
ALPGEN, a generator for hard multiparton processes in hadronic collisions · Signal and Background Processes and their Cross Sections · 1.00
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Jet reconstruction is then performed with FASTJET 2.4.1 [ref] using anti-kt algorithm [ref] and $E_T$ recombination scheme with a cone size of $ΔR=0.5$.
The anti-k_t jet clustering algorithm · Signal and Background Processes and their Cross Sections · 1.00
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Jet reconstruction is then performed with FASTJET 2.4.1 [ref] using anti-kt algorithm [ref] and $E_T$ recombination scheme with a cone size of $ΔR=0.5$.
Dispelling the N^3 myth for the Kt jet-finder · Signal and Background Processes and their Cross Sections · 1.00
Uses data or values from 2 papers
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However, the cross sections of this process at LHC in three $s$, $t$ and $tW$ channels are as large as $10.5,247$ and $51 pb$ [ref] .
Top Quark Physics · Single Top Events as a Source of Charged Higgs Bosons · 0.99
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The CLEO data excludes a charged Higgs mass below 295 GeV at 95 $%$ C.L. in 2HDM Type II with higher than 2 [ref] .
Estimate of BR(B -> X_s gamma) at O(alpha_s^2) · Introduction · 0.82
Compares with 2 papers
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The final state is, however, different from that of [ref] , i.e., a fully hadronic final state is assumed.
Charged Higgs bosons in single top production at the LHC · Single Top Events as a Source of Charged Higgs Bosons · 0.82
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The final state is, however, different from that of [ref] , i.e., a fully hadronic final state is assumed.
Charged Higgs discovery potential in the single top mode in 2HDMs · Single Top Events as a Source of Charged Higgs Bosons · 0.82
Cites as background 3 papers
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In [ref] , single top events have been analyzed in a search for the light charged Higgs decaying to $τ$ leptons which in turn undergo leptonic decays.
Light Charged Higgs bosons at the LHC in 2HDMs · Single Top Events as a Source of Charged Higgs Bosons · 0.80
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First observation of single top events was announced by D0 [ref] and [ref] collaborations.
Observation of Single Top-Quark Production · Single Top Events as a Source of Charged Higgs Bosons · 0.97
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First observation of single top events was announced by D0 [ref] and [ref] collaborations.
First Observation of Electroweak Single Top Quark Production · Single Top Events as a Source of Charged Higgs Bosons · 0.97
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