cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.151734.v1/t4
title: "Figure 4(d)" of "Search for charged-lepton-flavour violating $\mu\tau qt$ interactions in top-quark production and decay in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector at the LHC"

description: Observed event yields in $\textrm{SR}$ compared with post-fit expectations from Monte Carlo simulations, as a function of the scalar sum of lepton and jet transverse momenta, $H_{\mathrm{T}}$. The last bin includes overflow events. `Signal (prod.)' and `Signal (dec.)' refer to the single-top-quark production and top-quark pair decay signal contributions, respectively.
description: - CERN-LHC. A search for charged-lepton-flavour violating $\mu\tau qt$ interactions is presented, considering both top-quark production and decay. The data analysed correspond to $140~\textrm{fb}^{-1}$ of proton--proton collisions at a centre-of-mass energy of $\sqrt{s}= 13$ TeV recorded with the ATLAS detector at the Large Hadron Collider. The analysis targets events containing two muons with the same electric charge, a hadronically decaying tau lepton and at least one jet, with exactly one $b$-tagged jet, produced by a $\mu\tau qt$ interaction. Agreement with the Standard Model expectation within $1.6\sigma$ is observed, and limits are set at the $95\%$ CL on the charged-lepton-flavour violation branching ratio of $\mathcal{B}(t \to \mu\tau q) &lt; 8.7 \times 10^{-7}$. An Effective Field Theory interpretation is performed yielding $95\%$ CL limits on Wilson coefficients, dependent on the flavour of the associated light quark and the Lorentz structure of the coupling. These range from $c_{\mathsf{lequ}}^{3(2313)} / \Lambda^{2} &lt; 0.10~\textrm{TeV}^{-2}$ for $\mu\tau ut$ to $c_{\mathsf{ lequ}}^{1(2323)} / \Lambda^{2} &lt; 1.78~\textrm{TeV}^{-2}$ for $\mu\tau ct$. An additional search is performed for single scalar leptoquark production inducing charged lepton flavour violation, with fixed inter-generational couplings. Upper limits on leptoquark coupling strengths are set at the $95\%$ CL, ranging from $\lambda^{\textrm{LQ}} = 1.26$ to $\lambda^{\textrm{LQ}} = 3.68$ for masses between $0.5$ and $2.0$ TeV.
DOI: 10.17182/hepdata.151734.v1/t5
title: "Figure 5(a)" of "Search for charged-lepton-flavour violating $\mu\tau qt$ interactions in top-quark production and decay in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector at the LHC"

description: Expected and observed 95$\%$ CL upper limits on the branching ratio corresponding to the decay of a top quark to a muon and a tau lepton through a cLFV process for scalar, vector and tensor couplings. In the vector case, all vector operators are assumed to contribute simultaneously with the same effective coupling strength. The table shows the endpoint values of $\mathcal{B}(\mathrm{t}\to\mu\tau\mathrm{u})$ and $\mathcal{B}(\mathrm{t}\to\mu\tau\mathrm{c})$, which are interpolated linearly for each limit.
description: - CERN-LHC. A search for charged-lepton-flavour violating $\mu\tau qt$ interactions is presented, considering both top-quark production and decay. The data analysed correspond to $140~\textrm{fb}^{-1}$ of proton--proton collisions at a centre-of-mass energy of $\sqrt{s}= 13$ TeV recorded with the ATLAS detector at the Large Hadron Collider. The analysis targets events containing two muons with the same electric charge, a hadronically decaying tau lepton and at least one jet, with exactly one $b$-tagged jet, produced by a $\mu\tau qt$ interaction. Agreement with the Standard Model expectation within $1.6\sigma$ is observed, and limits are set at the $95\%$ CL on the charged-lepton-flavour violation branching ratio of $\mathcal{B}(t \to \mu\tau q) &lt; 8.7 \times 10^{-7}$. An Effective Field Theory interpretation is performed yielding $95\%$ CL limits on Wilson coefficients, dependent on the flavour of the associated light quark and the Lorentz structure of the coupling. These range from $c_{\mathsf{lequ}}^{3(2313)} / \Lambda^{2} &lt; 0.10~\textrm{TeV}^{-2}$ for $\mu\tau ut$ to $c_{\mathsf{ lequ}}^{1(2323)} / \Lambda^{2} &lt; 1.78~\textrm{TeV}^{-2}$ for $\mu\tau ct$. An additional search is performed for single scalar leptoquark production inducing charged lepton flavour violation, with fixed inter-generational couplings. Upper limits on leptoquark coupling strengths are set at the $95\%$ CL, ranging from $\lambda^{\textrm{LQ}} = 1.26$ to $\lambda^{\textrm{LQ}} = 3.68$ for masses between $0.5$ and $2.0$ TeV.
DOI: 10.17182/hepdata.151734.v1/t6
title: "Figure 5(b)" of "Search for charged-lepton-flavour violating $\mu\tau qt$ interactions in top-quark production and decay in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector at the LHC"

description: Expected and observed 95$\%$ CL upper limits on the Wilson coefficients for scalar, vector and tensor couplings of a top quark to a muon and a tau lepton through a cLFV process. In the vector case, all vector operators are assumed to contribute simultaneously with the same effective coupling strength. The table shows the endpoint values of the $|c^{\mu\tau\mathrm{ut}}|$ and $|c^{\mu\tau\mathrm{ct}}|$ Wilson coefficients, which are interpolated assuming a linear relationship between $\mathcal{B}(\mathrm{t}\to\mu\tau\mathrm{u})$ and $\mathcal{B}(\mathrm{t}\to\mu\tau\mathrm{c})$.
description: - CERN-LHC. A search for charged-lepton-flavour violating $\mu\tau qt$ interactions is presented, considering both top-quark production and decay. The data analysed correspond to $140~\textrm{fb}^{-1}$ of proton--proton collisions at a centre-of-mass energy of $\sqrt{s}= 13$ TeV recorded with the ATLAS detector at the Large Hadron Collider. The analysis targets events containing two muons with the same electric charge, a hadronically decaying tau lepton and at least one jet, with exactly one $b$-tagged jet, produced by a $\mu\tau qt$ interaction. Agreement with the Standard Model expectation within $1.6\sigma$ is observed, and limits are set at the $95\%$ CL on the charged-lepton-flavour violation branching ratio of $\mathcal{B}(t \to \mu\tau q) &lt; 8.7 \times 10^{-7}$. An Effective Field Theory interpretation is performed yielding $95\%$ CL limits on Wilson coefficients, dependent on the flavour of the associated light quark and the Lorentz structure of the coupling. These range from $c_{\mathsf{lequ}}^{3(2313)} / \Lambda^{2} &lt; 0.10~\textrm{TeV}^{-2}$ for $\mu\tau ut$ to $c_{\mathsf{ lequ}}^{1(2323)} / \Lambda^{2} &lt; 1.78~\textrm{TeV}^{-2}$ for $\mu\tau ct$. An additional search is performed for single scalar leptoquark production inducing charged lepton flavour violation, with fixed inter-generational couplings. Upper limits on leptoquark coupling strengths are set at the $95\%$ CL, ranging from $\lambda^{\textrm{LQ}} = 1.26$ to $\lambda^{\textrm{LQ}} = 3.68$ for masses between $0.5$ and $2.0$ TeV.
DOI: 10.17182/hepdata.151734.v1/t7
title: "Figure 6(a)" of "Search for charged-lepton-flavour violating $\mu\tau qt$ interactions in top-quark production and decay in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector at the LHC"

description: Observed event yields in $\textrm{SR}$ compared with pre-fit expectations from Monte Carlo simulations, as a function of the scalar sum of lepton and jet transverse momenta, $H_{\mathrm{T}}$. The last bin includes overflow events. The signal yields represent a leptoquark mass of $m_{S_{1}} = 1$ TeV and a coupling strength of $\lambda^{\textrm{LQ}} = 2.0$.
description: - CERN-LHC. A search for charged-lepton-flavour violating $\mu\tau qt$ interactions is presented, considering both top-quark production and decay. The data analysed correspond to $140~\textrm{fb}^{-1}$ of proton--proton collisions at a centre-of-mass energy of $\sqrt{s}= 13$ TeV recorded with the ATLAS detector at the Large Hadron Collider. The analysis targets events containing two muons with the same electric charge, a hadronically decaying tau lepton and at least one jet, with exactly one $b$-tagged jet, produced by a $\mu\tau qt$ interaction. Agreement with the Standard Model expectation within $1.6\sigma$ is observed, and limits are set at the $95\%$ CL on the charged-lepton-flavour violation branching ratio of $\mathcal{B}(t \to \mu\tau q) &lt; 8.7 \times 10^{-7}$. An Effective Field Theory interpretation is performed yielding $95\%$ CL limits on Wilson coefficients, dependent on the flavour of the associated light quark and the Lorentz structure of the coupling. These range from $c_{\mathsf{lequ}}^{3(2313)} / \Lambda^{2} &lt; 0.10~\textrm{TeV}^{-2}$ for $\mu\tau ut$ to $c_{\mathsf{ lequ}}^{1(2323)} / \Lambda^{2} &lt; 1.78~\textrm{TeV}^{-2}$ for $\mu\tau ct$. An additional search is performed for single scalar leptoquark production inducing charged lepton flavour violation, with fixed inter-generational couplings. Upper limits on leptoquark coupling strengths are set at the $95\%$ CL, ranging from $\lambda^{\textrm{LQ}} = 1.26$ to $\lambda^{\textrm{LQ}} = 3.68$ for masses between $0.5$ and $2.0$ TeV.
DOI: 10.17182/hepdata.151734.v1/t8
title: "Figure 6(b)" of "Search for charged-lepton-flavour violating $\mu\tau qt$ interactions in top-quark production and decay in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector at the LHC"

description: Observed event yields in $\textrm{SR}$ compared with post-fit expectations from Monte Carlo simulations, as a function of the scalar sum of lepton and jet transverse momenta, $H_{\mathrm{T}}$. The last bin includes overflow events. The signal yields represent a leptoquark mass of $m_{S_{1}} = 1$ TeV and a coupling strength of $\lambda^{\textrm{LQ}} = 2.0$.
description: - CERN-LHC. A search for charged-lepton-flavour violating $\mu\tau qt$ interactions is presented, considering both top-quark production and decay. The data analysed correspond to $140~\textrm{fb}^{-1}$ of proton--proton collisions at a centre-of-mass energy of $\sqrt{s}= 13$ TeV recorded with the ATLAS detector at the Large Hadron Collider. The analysis targets events containing two muons with the same electric charge, a hadronically decaying tau lepton and at least one jet, with exactly one $b$-tagged jet, produced by a $\mu\tau qt$ interaction. Agreement with the Standard Model expectation within $1.6\sigma$ is observed, and limits are set at the $95\%$ CL on the charged-lepton-flavour violation branching ratio of $\mathcal{B}(t \to \mu\tau q) &lt; 8.7 \times 10^{-7}$. An Effective Field Theory interpretation is performed yielding $95\%$ CL limits on Wilson coefficients, dependent on the flavour of the associated light quark and the Lorentz structure of the coupling. These range from $c_{\mathsf{lequ}}^{3(2313)} / \Lambda^{2} &lt; 0.10~\textrm{TeV}^{-2}$ for $\mu\tau ut$ to $c_{\mathsf{ lequ}}^{1(2323)} / \Lambda^{2} &lt; 1.78~\textrm{TeV}^{-2}$ for $\mu\tau ct$. An additional search is performed for single scalar leptoquark production inducing charged lepton flavour violation, with fixed inter-generational couplings. Upper limits on leptoquark coupling strengths are set at the $95\%$ CL, ranging from $\lambda^{\textrm{LQ}} = 1.26$ to $\lambda^{\textrm{LQ}} = 3.68$ for masses between $0.5$ and $2.0$ TeV.
DOI: 10.17182/hepdata.151734.v1/t9
title: "Figure 7(b)" of "Search for charged-lepton-flavour violating $\mu\tau qt$ interactions in top-quark production and decay in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector at the LHC"

description: Observed and expected exclusion 95$\%$ CL upper limits on the $S_{1}$ leptoquark coupling strength $\lambda^{\textrm{LQ}}$ as a function of LQ mass, $m_{S_{1}}$.
description: - CERN-LHC. A search for charged-lepton-flavour violating $\mu\tau qt$ interactions is presented, considering both top-quark production and decay. The data analysed correspond to $140~\textrm{fb}^{-1}$ of proton--proton collisions at a centre-of-mass energy of $\sqrt{s}= 13$ TeV recorded with the ATLAS detector at the Large Hadron Collider. The analysis targets events containing two muons with the same electric charge, a hadronically decaying tau lepton and at least one jet, with exactly one $b$-tagged jet, produced by a $\mu\tau qt$ interaction. Agreement with the Standard Model expectation within $1.6\sigma$ is observed, and limits are set at the $95\%$ CL on the charged-lepton-flavour violation branching ratio of $\mathcal{B}(t \to \mu\tau q) &lt; 8.7 \times 10^{-7}$. An Effective Field Theory interpretation is performed yielding $95\%$ CL limits on Wilson coefficients, dependent on the flavour of the associated light quark and the Lorentz structure of the coupling. These range from $c_{\mathsf{lequ}}^{3(2313)} / \Lambda^{2} &lt; 0.10~\textrm{TeV}^{-2}$ for $\mu\tau ut$ to $c_{\mathsf{ lequ}}^{1(2323)} / \Lambda^{2} &lt; 1.78~\textrm{TeV}^{-2}$ for $\mu\tau ct$. An additional search is performed for single scalar leptoquark production inducing charged lepton flavour violation, with fixed inter-generational couplings. Upper limits on leptoquark coupling strengths are set at the $95\%$ CL, ranging from $\lambda^{\textrm{LQ}} = 1.26$ to $\lambda^{\textrm{LQ}} = 3.68$ for masses between $0.5$ and $2.0$ TeV.
DOI: 10.17182/hepdata.151734.v1/t10
title: "Table 2" of "Search for charged-lepton-flavour violating $\mu\tau qt$ interactions in top-quark production and decay in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector at the LHC"

description: Theoretical cross-sections for single-top-quark production and top-quark decays through cLFV interactions involving vector, scalar and tensor EFT Wilson coefficients. The column titled as $c^{(ijk3)}_{\textrm{vector}}$ represents the individual cross-section contributions from each of $c_{\mathsf{lq}}^{-(ijk3)}$, $c_{\mathsf{eq}}^{(ijk3)}$, $c_{\mathsf{lu}}^{(ijk3)}$ and $c_{\mathsf{eu}}^{(ijk3)}$. The coefficient indices represent the lepton flavour generations ($i,j = 1,2,3$ where $i \neq j$) and light quark flavour generations ($k = 1,2$). The single-top-quark production cross-sections are quoted for $u$- and $c$-quark couplings separately, while they are combined for the $t\bar{t}$ decay process ($q_k = u,c$). The scale and PDF uncertainties are given. The value of each Wilson coefficient is set to 1.0 for the calculation of the cross-section.
description: - CERN-LHC. A search for charged-lepton-flavour violating $\mu\tau qt$ interactions is presented, considering both top-quark production and decay. The data analysed correspond to $140~\textrm{fb}^{-1}$ of proton--proton collisions at a centre-of-mass energy of $\sqrt{s}= 13$ TeV recorded with the ATLAS detector at the Large Hadron Collider. The analysis targets events containing two muons with the same electric charge, a hadronically decaying tau lepton and at least one jet, with exactly one $b$-tagged jet, produced by a $\mu\tau qt$ interaction. Agreement with the Standard Model expectation within $1.6\sigma$ is observed, and limits are set at the $95\%$ CL on the charged-lepton-flavour violation branching ratio of $\mathcal{B}(t \to \mu\tau q) &lt; 8.7 \times 10^{-7}$. An Effective Field Theory interpretation is performed yielding $95\%$ CL limits on Wilson coefficients, dependent on the flavour of the associated light quark and the Lorentz structure of the coupling. These range from $c_{\mathsf{lequ}}^{3(2313)} / \Lambda^{2} &lt; 0.10~\textrm{TeV}^{-2}$ for $\mu\tau ut$ to $c_{\mathsf{ lequ}}^{1(2323)} / \Lambda^{2} &lt; 1.78~\textrm{TeV}^{-2}$ for $\mu\tau ct$. An additional search is performed for single scalar leptoquark production inducing charged lepton flavour violation, with fixed inter-generational couplings. Upper limits on leptoquark coupling strengths are set at the $95\%$ CL, ranging from $\lambda^{\textrm{LQ}} = 1.26$ to $\lambda^{\textrm{LQ}} = 3.68$ for masses between $0.5$ and $2.0$ TeV.
DOI: 10.17182/hepdata.151734.v1/t11
title: "Table 4" of "Search for charged-lepton-flavour violating $\mu\tau qt$ interactions in top-quark production and decay in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector at the LHC"

description: Requirements for each analysis region. The symbol $\ell_{3}$ denotes the lowest $p_{\mathrm{T}}$ lepton. In $\mathrm{CR}t\bar{t}\mu$ an additional requirement is placed on the leading muon $p_{\mathrm{T}}$ ($p^{\mu_1}_\mathrm{T}$) and dilepton invariant masses in order to reject signal events.
description: - CERN-LHC. A search for charged-lepton-flavour violating $\mu\tau qt$ interactions is presented, considering both top-quark production and decay. The data analysed correspond to $140~\textrm{fb}^{-1}$ of proton--proton collisions at a centre-of-mass energy of $\sqrt{s}= 13$ TeV recorded with the ATLAS detector at the Large Hadron Collider. The analysis targets events containing two muons with the same electric charge, a hadronically decaying tau lepton and at least one jet, with exactly one $b$-tagged jet, produced by a $\mu\tau qt$ interaction. Agreement with the Standard Model expectation within $1.6\sigma$ is observed, and limits are set at the $95\%$ CL on the charged-lepton-flavour violation branching ratio of $\mathcal{B}(t \to \mu\tau q) &lt; 8.7 \times 10^{-7}$. An Effective Field Theory interpretation is performed yielding $95\%$ CL limits on Wilson coefficients, dependent on the flavour of the associated light quark and the Lorentz structure of the coupling. These range from $c_{\mathsf{lequ}}^{3(2313)} / \Lambda^{2} &lt; 0.10~\textrm{TeV}^{-2}$ for $\mu\tau ut$ to $c_{\mathsf{ lequ}}^{1(2323)} / \Lambda^{2} &lt; 1.78~\textrm{TeV}^{-2}$ for $\mu\tau ct$. An additional search is performed for single scalar leptoquark production inducing charged lepton flavour violation, with fixed inter-generational couplings. Upper limits on leptoquark coupling strengths are set at the $95\%$ CL, ranging from $\lambda^{\textrm{LQ}} = 1.26$ to $\lambda^{\textrm{LQ}} = 3.68$ for masses between $0.5$ and $2.0$ TeV.
DOI: 10.17182/hepdata.151734.v1/t12
title: "Table 6" of "Search for charged-lepton-flavour violating $\mu\tau qt$ interactions in top-quark production and decay in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector at the LHC"

description: Post-fit event yields for each analysis region entering the fit, with correlations on the full systematic uncertainties taken into account as determined in the fit under a signal+background hypothesis. The 'fake electron' category in the CR$t\bar{t}\mu$ control region collects small contributions primarily from $t\bar{t}\gamma$ and $Z\gamma$ which enter the event selection due to photon conversions.
description: - CERN-LHC. A search for charged-lepton-flavour violating $\mu\tau qt$ interactions is presented, considering both top-quark production and decay. The data analysed correspond to $140~\textrm{fb}^{-1}$ of proton--proton collisions at a centre-of-mass energy of $\sqrt{s}= 13$ TeV recorded with the ATLAS detector at the Large Hadron Collider. The analysis targets events containing two muons with the same electric charge, a hadronically decaying tau lepton and at least one jet, with exactly one $b$-tagged jet, produced by a $\mu\tau qt$ interaction. Agreement with the Standard Model expectation within $1.6\sigma$ is observed, and limits are set at the $95\%$ CL on the charged-lepton-flavour violation branching ratio of $\mathcal{B}(t \to \mu\tau q) &lt; 8.7 \times 10^{-7}$. An Effective Field Theory interpretation is performed yielding $95\%$ CL limits on Wilson coefficients, dependent on the flavour of the associated light quark and the Lorentz structure of the coupling. These range from $c_{\mathsf{lequ}}^{3(2313)} / \Lambda^{2} &lt; 0.10~\textrm{TeV}^{-2}$ for $\mu\tau ut$ to $c_{\mathsf{ lequ}}^{1(2323)} / \Lambda^{2} &lt; 1.78~\textrm{TeV}^{-2}$ for $\mu\tau ct$. An additional search is performed for single scalar leptoquark production inducing charged lepton flavour violation, with fixed inter-generational couplings. Upper limits on leptoquark coupling strengths are set at the $95\%$ CL, ranging from $\lambda^{\textrm{LQ}} = 1.26$ to $\lambda^{\textrm{LQ}} = 3.68$ for masses between $0.5$ and $2.0$ TeV.
DOI: 10.17182/hepdata.151734.v1/t13
title: "Table 7" of "Search for charged-lepton-flavour violating $\mu\tau qt$ interactions in top-quark production and decay in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector at the LHC"

description: Expected and observed 95$\%$ CL upper limits on Wilson coefficients corresponding to 2Q2L EFT operators which could introduce a cLFV top decay in the $\mu\tau$ channel, and existing limits from JHEP04 (2019) 014 (previous). The previous limits shown for $c^{1(ijk3)}_{\mathsf{lequ}}$ and $c^{3(ijk3)}_{\mathsf{lequ}}$ are tightened by a factor of $\sqrt{2}$, as JHEP04 (2019) 014 does not assume that these operators are Hermitian. Results are shown separately for the $\mu\tau ut$ and $\mu\tau ct$ interactions. The lepton generations are denoted by $i,j=2,3$ for $\mu$ and $\tau$ (where $i \neq j$) and the quark generations are denoted by $k=1,2$ for $u$ and $c$, respectively.
description: - CERN-LHC. A search for charged-lepton-flavour violating $\mu\tau qt$ interactions is presented, considering both top-quark production and decay. The data analysed correspond to $140~\textrm{fb}^{-1}$ of proton--proton collisions at a centre-of-mass energy of $\sqrt{s}= 13$ TeV recorded with the ATLAS detector at the Large Hadron Collider. The analysis targets events containing two muons with the same electric charge, a hadronically decaying tau lepton and at least one jet, with exactly one $b$-tagged jet, produced by a $\mu\tau qt$ interaction. Agreement with the Standard Model expectation within $1.6\sigma$ is observed, and limits are set at the $95\%$ CL on the charged-lepton-flavour violation branching ratio of $\mathcal{B}(t \to \mu\tau q) &lt; 8.7 \times 10^{-7}$. An Effective Field Theory interpretation is performed yielding $95\%$ CL limits on Wilson coefficients, dependent on the flavour of the associated light quark and the Lorentz structure of the coupling. These range from $c_{\mathsf{lequ}}^{3(2313)} / \Lambda^{2} &lt; 0.10~\textrm{TeV}^{-2}$ for $\mu\tau ut$ to $c_{\mathsf{ lequ}}^{1(2323)} / \Lambda^{2} &lt; 1.78~\textrm{TeV}^{-2}$ for $\mu\tau ct$. An additional search is performed for single scalar leptoquark production inducing charged lepton flavour violation, with fixed inter-generational couplings. Upper limits on leptoquark coupling strengths are set at the $95\%$ CL, ranging from $\lambda^{\textrm{LQ}} = 1.26$ to $\lambda^{\textrm{LQ}} = 3.68$ for masses between $0.5$ and $2.0$ TeV.