Search Results - "S. Martellotti"
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Search for heavy neutral lepton production in K+ decays to positrons
Published in Physics letters. B (01-08-2020)“…A search for heavy neutral lepton (N) production in K+→e+N decays using the data sample collected by the NA62 experiment at CERN in 2017–2018 is reported…”
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Search for K+ decays to a muon and invisible particles
Published in Physics letters. B (10-05-2021)“…The NA62 experiment at CERN reports searches for K+→μ+N and K+→μ+νX decays, where N and X are massive invisible particles, using the 2016–2018 data set. The N…”
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Search for heavy neutral lepton production in K+ decays
Published in Physics letters. B (10-03-2018)“…A search for heavy neutral lepton production in K+ decays using a data sample collected with a minimum bias trigger by the NA62 experiment at CERN in 2015 is…”
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Search for a feebly interacting particle X in the decay K+ → π+X
Published in The journal of high energy physics (01-03-2021)“…A bstract 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 + → π + ν ν…”
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Searches for lepton number violating K+ decays
Published in Physics letters. B (10-10-2019)“…The NA62 experiment at CERN reports a search for the lepton number violating decays K+→π−e+e+ and K+→π−μ+μ+ using a data sample collected in 2017. No signals…”
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A measurement of the K+→ π+μ+μ− decay
Published in The journal of high energy physics (04-11-2022)“…A bstract A sample of 2 . 8 × 10 4 K + → π + μ + μ − candidates with negligible background was collected by the NA62 experiment at the CERN SPS in 2017–2018…”
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Search for dark photon decays to μ+μ− at NA62
Published in The journal of high energy physics (06-09-2023)“…A bstract The NA62 experiment at CERN, designed to study the ultra-rare decay K + → π + ν ν ¯ , has also collected data in beam-dump mode. In this…”
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Research and Development Status for an Innovative Crystal Calorimeter for the Future Muon Collider
Published in IEEE transactions on nuclear science (01-05-2024)“…Accurate measurements of physical processes in high energy frontier experiments demand exceptional spatial, temporal, and energy precision to discern the…”
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Search for K+ decays into the π+e+e−e+e− final state
Published in Physics letters. B (10-11-2023)“…The first search for ultra-rare K+ decays into the π+e+e−e+e− final state is reported, using a dataset collected by the NA62 experiment at CERN in 2017–2018…”
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Development of nanocomposite scintillators for use in high-energy physics
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-12-2024)“…Semiconductor nanocrystals (“quantum dots”) are light emitters with high quantum yield that are relatively easy to manufacture. There is therefore much…”
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Performance of the NA62 trigger system
Published in The journal of high energy physics (17-03-2023)“…A bstract The NA62 experiment at CERN targets the measurement of the ultra-rare K + → π + ν ν ¯ decay, and carries out a broad physics programme that includes…”
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Measurement of the K+ → π+γγ decay
Published in Physics letters. B (01-03-2024)“…A sample of 3984 candidates of the K+→π+γγ decay, with an estimated background of 291±14 events, was collected by the NA62 experiment at CERN during 2017–2018…”
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First search for K+ → π0πμe decays
Published in Physics letters. B (01-12-2024)“…The first search for the lepton number violating decay K+→π0π−μ+e+ and lepton flavour violating decays K+→π0π+μ−e+, K+→π0π+μ+e− has been performed using a…”
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Searches for lepton number violating K+ → π−(π0)e+e+ decays
Published in Physics letters. B (10-07-2022)“…Searches for lepton number violating K+→π−e+e+ and K+→π−π0e+e+ decays have been performed using the complete dataset collected by the NA62 experiment at CERN…”
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A search for the K+ → μ−νe+e+ decay
Published in Physics letters. B (01-03-2023)“…A search for the K+→μ−νe+e+ decay, forbidden within the Standard Model by either lepton number or lepton flavour conservation depending on the flavour of the…”
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Addendum to: A measurement of the K+→ π+μ+μ− decay
Published in The journal of high energy physics (08-06-2023)Get full text
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Search for Lepton Flavor Violation in $\Upsilon (3S)\rightarrow e^{\pm}\mu^{\mp}
Published in Physical review letters (2022)“…We report on the first search for electron-muon lepton flavor violation (LFV) in the decay of a b quark and b antiquark bound state. We look for the LFV decay…”
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Measurement of the very rare K+ → $$ {\pi}^{+}\nu \overline{\nu} $$ decay
Published in The journal of high energy physics (01-06-2021)“…A bstract The NA62 experiment reports the branching ratio measurement $$ \mathrm{BR}\left({K}^{+}\to {\pi}^{+}\nu…”
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Search for π0 decays to invisible particles
Published in The journal of high energy physics (01-02-2021)“…A bstract The NA62 experiment at the CERN SPS reports a study of a sample of 4 × 10 9 tagged π 0 mesons from K + → π + π 0 ( γ ), searching for the decay of…”
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Beam test, simulation, and performance evaluation of PbF2 and PWO-UF crystals with SiPM readout for a semi-homogeneous calorimeter prototype with longitudinal segmentation
Published in Frontiers in physics (25-08-2023)“…Crilin (Crystal Calorimeter with Longitudinal Information) is a semi-homogeneous, longitudinally segmented electromagnetic calorimeter based on high- Z ,…”
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