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Search for a Heavy Neutral Particle Decaying to $e\mu$, $e\tau$, or $\mu\tau$ in $pp$ Collisions at $\sqrt{s}=8$ TeV with the ATLAS Detector
High Energy Physics - Experiment · Submitted 15 Mar 2015
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim The numbers of observed candidate events are compatible with the Standard Model expectations.
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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
This Letter presents a search for a heavy neutral particle decaying into an opposite-sign different-flavor dilepton pair, $e^\pm \mu^\mp$, $e^\pm \tau^\mp$, or $\mu^\pm \tau^\mp$ using 20.3 fb$^{-1}$ of $pp$ collision data at $\sqrt{s} = 8$ TeV collected by the ATLAS detector at the LHC. The numbers of observed candidate events are compatible with the Standard Model expectations. Limits are set on the cross section of new phenomena in two scenarios: the production of $\tilde{\nu}_{\tau}$ in $R$-parity-violating supersymmetric models and the production of a lepton-flavor-violating $Z'$ vector boson.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | This Letter presents a search for a heavy neutral particle decaying into an opposite-sign different-flavor dilepton pair, $e^\pm \mu^\mp$, $e^\pm \tau^\mp$, or $\mu^\pm \tau^\mp$ using 20.3 fb$^{-1}$ of $pp$ collision data at $\sqrt{s} = 8$ TeV collected by the ATLAS detector at the LHC. | contribution 0.95 | 0.95 | 0.04 | asserted 0.95 |
| s1 | The numbers of observed candidate events are compatible with the Standard Model expectations. | result 0.99 | 0.92 | 0.80 | hedged possibility 0.51 |
| s2 | Limits are set on the cross section of new phenomena in two scenarios: the production of $\tilde{\nu}_{\tau}$ in $R$-parity-violating supersymmetric models and the production of a lepton-flavor-violating $Z'$ vector boson. | result 0.86 | 0.95 | 0.12 | asserted 1.00 |
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The paper
Original abstract
This Letter presents a search for a heavy neutral particle decaying into an opposite-sign different-flavor dilepton pair, $e^\pm \mu^\mp$, $e^\pm \tau^\mp$, or $\mu^\pm \tau^\mp$ using 20.3 fb$^{-1}$ of $pp$ collision data at $\sqrt{s} = 8$ TeV collected by the ATLAS detector at the LHC. The numbers of observed candidate events are compatible with the Standard Model expectations. Limits are set on the cross section of new phenomena in two scenarios: the production of $\tilde{\nu}_{\tau}$ in $R$-parity-violating supersymmetric models and the production of a lepton-flavor-violating $Z'$ vector boson.
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References
How the literature uses it
21 arXiv papers cite this in 30 sentences
Papers citing it · 20 sentences without a confident label
Contests it 1 paper
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Let us finally remark that past collider searches in the context of trilinear $$ couplings [ref] are ineffectual for our scenario.
Searching for left sneutrino LSP at the LHC · Detection at the LHC · contest 0.77
Uses its data or values 1 paper
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We will take the most up-to-date inclusive and exclusive analyses for a pair of oppositely charged flavour off-diagonal leptons, i.e. the 8 TeV search for $eμ$, $eτ$ and $μτ$ with $20.3$ fb$^-1$ integrated luminosity in Ref. [ref] and the 7 TeV search for $eμ$ with $2.08$ fb$^-1$ integrated luminosity in Ref. [ref] .
A Case Study of the Sensitivity to LFV Operators with Precision Measurements and the LHC · LHC Search · 0.93
Compares with it 1 paper
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For RPV couplings $==0.07$ and $=0.11$, we set a mass limit of 2.30$$, and improve the lower bound of 2.0$$ previously set [ref] .
Search for lepton flavour violating decays of heavy resonances and quantum black holes to an e-mu pair in proton-proton collisions at sqrt(s) = 8 TeV · Results · 0.81
Cites it as background 6 papers
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This class of LFV processes is also being sought through the decays of heavy resonances [ref] and neutral heavy Higgs bosons [ref] .
Model-independent search strategy for the lepton-flavor-violating heavy Higgs boson decay to $\tau\mu$ at the LHC · Introduction · 0.84
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These classes of LFV processes are also being studied in LHC through the decays of neutral heavy Higgs like bosons for different supersymmetric and non-supersymmetric models [ref] .
Probing Lepton Flavor Violating decays in MSSM with Non-Holomorphic Soft Terms · Status of different LFV decays · 0.91
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LFV decays of neutral heavy resonances and heavy Higgs bosons at the LHC have also been investigated in Refs. [ref] and [ref] , respectively.
Constraining Lepton Flavor Violating Higgs Couplings at the HL-LHC in the Vector Boson Fusion Channel · Introduction · 0.89
What it cites · 9 sentences without a confident label
Uses the method or tool of 13 papers
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A frequentist technique [ref] is used to set the expected and observed upper limits as a function of and $m_Z'$.
Asymptotic formulae for likelihood-based tests of new physics · Introduction · 1.00
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Jet energies are calibrated using Monte Carlo (MC) simulation and a combination of several in situ calibrations [ref] .
Jet energy measurement with the ATLAS detector in proton-proton collisions at sqrt(s) = 7 TeV · Introduction · 1.00
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Contributions from processes in the prompt two-lepton category, as well as photon-related and $Z/γ^* →ee (μμ)$ backgrounds, are estimated using MC simulation [ref] .
The ATLAS Simulation Infrastructure · Introduction · 0.87
Compares with 3 papers
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The observed lower mass limits are a factor of three to four higher than the best limits from the Tevatron [ref] and also more stringent than the previous limits from ATLAS [ref] for the same couplings.
Search for R-parity Violating Decays of tau Sneutrinos to emu, mutau, and etau Pairs in ppbar Collisions at sqrt(s) = 1.96 TeV · Introduction · 1.00
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The observed lower mass limits are a factor of three to four higher than the best limits from the Tevatron [ref] and also more stringent than the previous limits from ATLAS [ref] for the same couplings.
Search for sneutrino production in emu final states in 5.3 fb^-1 of ppbar collisions at sqrt(s) =1.96 TeV · Introduction · 1.00
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The observed lower mass limits are a factor of three to four higher than the best limits from the Tevatron [ref] and also more stringent than the previous limits from ATLAS [ref] for the same couplings.
Search for a heavy narrow resonance decaying to e mu, e tau, or mu tau with the ATLAS detector in sqrt(s) = 7 TeV pp collisions at the LHC · Introduction · 1.00
Cites as background 6 papers
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The CDF [ref] , D0 [ref] , and ATLAS [ref] collaborations have searched for a $ν̃_τ$ in LFV final states and placed limits for various $ν̃_τ$ mass hypotheses.
Search for R-parity Violating Decays of tau Sneutrinos to emu, mutau, and etau Pairs in ppbar Collisions at sqrt(s) = 1.96 TeV · Introduction · 0.91
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The CDF [ref] , D0 [ref] , and ATLAS [ref] collaborations have searched for a $ν̃_τ$ in LFV final states and placed limits for various $ν̃_τ$ mass hypotheses.
Search for sneutrino production in emu final states in 5.3 fb^-1 of ppbar collisions at sqrt(s) =1.96 TeV · Introduction · 0.91
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The CDF [ref] , D0 [ref] , and ATLAS [ref] collaborations have searched for a $ν̃_τ$ in LFV final states and placed limits for various $ν̃_τ$ mass hypotheses.
Search for a heavy narrow resonance decaying to e mu, e tau, or mu tau with the ATLAS detector in sqrt(s) = 7 TeV pp collisions at the LHC · Introduction · 0.91
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