130 Result(s)
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Open AccessImproved calorimetric particle identification in NA62 using machine learning techniques
Measurement of the ultra-rare K + → ...
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Open AccessA study of the K+ → π0e+νγ decay
A sample of 1.3 × 105 K+ → π0e+νγ candidates with less than 1% background was collected by the NA62 experiment at the CERN SPS in 2017–2018. Branching fraction measurements are obtained at percent relative precis...
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Open AccessSearch for dark photon decays to μ+μ− at NA62
The NA62 experiment at CERN, designed to study the ultra-rare decay K+ → π+ ν ν ...
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Open AccessAddendum to: A measurement of the K+ → π+μ+μ− decay
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Open AccessPerformance of the NA62 trigger system
The NA62 experiment at CERN targets the measurement of the ultra-rare K + ...
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Open AccessA measurement of the K+ → π+μ+μ− decay
A sample of 2.8 × 104 K+ → π+μ+μ− candidates with negligible background was collected by the NA62 experiment at the CERN SPS in 2017–2018. The model-independent branching fraction is measured to be (9.15 ± 0.08) ...
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Open AccessImpact of jet-production data on the next-to-next-to-leading-order determination of HERAPDF2.0 parton distributions
The HERAPDF2.0 ensemble of parton distribution functions (PDFs) was introduced in 2015. The final stage is presented, a next-to-next-to-leading-order (NNLO) analysis of the HERA data on inclusive deep inelastic e...
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Open AccessErratum to: Measurement of jet production cross sections in deep-inelastic ep scattering at HERA
The measurement of the jet cross sections by the H1 collaboration had been compared to various predictions including the next-to-next-to-leading order (NNLO) QCD calculations which are corrected in this erratu...
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Open AccessErratum to: Determination of the strong coupling constant \({{\varvec{\alpha _{\mathrm{s}} (m_{\mathrm{Z}})}}}\) in next-to-next-to-leading order QCD using H1 jet cross section measurements
The determination of the strong coupling constant \(\alpha _{\mathrm{s}} (m_{\mathrm{Z}})\) ...
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Open AccessMeasurement of the very rare K+ → \( {\pi}^{+}\nu \overline{\nu} \) decay
The NA62 experiment reports the branching ratio measurement BR ...
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Open AccessSearch for a feebly interacting particle X in the decay K+ → π+X
A search for the K+ → π+X decay, where X is a long-lived feebly interacting particle, is performed through an interpretation of the K+ → ...
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Open AccessMeasurement of charged particle multiplicity distributions in DIS at HERA and its implication to entanglement entropy of partons
Charged particle multiplicity distributions in positron-proton deep inelastic scattering at a centre-of-mass energy \(\sqrt{s}=319\) ...
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Open AccessSearch for π0 decays to invisible particles
The NA62 experiment at the CERN SPS reports a study of a sample of 4 × 109 tagged π0 mesons from K+ → π+π0(γ), searching for the decay of the π0 to invisible particles. No signal is observed in excess of the expe...
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Open AccessMeasurement of exclusive \({\varvec{{{{\pi ^+\pi ^-}}}}}\) and \({\varvec{{{{\rho ^0}}}}}\) meson photoproduction at HERA
Exclusive photoproduction of \({{\rho ^0}} (770)\) ρ ...
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Open AccessAn investigation of the very rare \( {K}^{+}\to {\pi}^{+}\nu \overline{\nu} \) decay
The NA62 experiment reports an investigation of the K + ...
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Article
Open AccessSearch for production of an invisible dark photon in π0 decays
The results of a search for π0 decays to a photon and an invisible massive dark photon at the NA62 experiment at the CERN SPS are reported. From a total of 4.12 × 108 tagged π0 mesons, no signal is observed. Assu...
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Open AccessDetermination of electroweak parameters in polarised deep-inelastic scattering at HERA
The parameters of the electroweak theory are determined in a combined electroweak and QCD analysis using all deep-inelastic \(e^+p\) ...
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Article
Open AccessCombination and QCD analysis of charm and beauty production cross-section measurements in deep inelastic ep scattering at HERA
Measurements of open charm and beauty production cross sections in deep inelastic ep scattering at HERA from the H1 and ZEUS Collaborations are combined. Reduced cross sections are obtained in the kinematic range...
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Article
Open AccessDetermination of the strong coupling constant \({\varvec{{\alpha _\mathrm{s} (m_\mathrm{Z})}}}\) in next-to-next-to-leading order QCD using H1 jet cross section measurements
The strong coupling constant \(\alpha _\mathrm{s}\) α ...
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Article
Open AccessMeasurement of \({\varvec{D^{*}}}\) production in diffractive deep inelastic scattering at HERA
Measurements of \(D^{*}(2010)\) ...
