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View article: Search for the X17 particle in $$^{7}\textrm{Li}(\textrm{p},\textrm{e}^+ \textrm{e}^{-}) ^{8}\textrm{Be}$$ processes with the MEG II detector
Search for the X17 particle in $$^{7}\textrm{Li}(\textrm{p},\textrm{e}^+ \textrm{e}^{-}) ^{8}\textrm{Be}$$ processes with the MEG II detector Open
The observation of a resonance structure in the opening angle of the electron-positron pairs in the $$^{7}$$ Li(p,e $$^+$$ e $$^-$$ ) $$^{8}$$ Be reaction was claimed and interpreted as the production and subsequent decay of a …
View article: Search for the X17 particle in $^{7}\mathrm{Li}(\mathrm{p},\mathrm{e}^+ \mathrm{e}^{-}) ^{8}\mathrm{Be}$ processes with the MEG II detector
Search for the X17 particle in $^{7}\mathrm{Li}(\mathrm{p},\mathrm{e}^+ \mathrm{e}^{-}) ^{8}\mathrm{Be}$ processes with the MEG II detector Open
The observation of a resonance structure in the opening angle of the electron-positron pairs in the $^{7}$Li(p,\ee) $^{8}$Be reaction was claimed and interpreted as the production and subsequent decay of a hypothetical particle (X17). Simi…
View article: Erratum to: A search for $$\upmu ^+ \rightarrow \textrm{e}^+ \upgamma $$ with the first dataset of the MEG II experiment
Erratum to: A search for $$\upmu ^+ \rightarrow \textrm{e}^+ \upgamma $$ with the first dataset of the MEG II experiment Open
View article: Performances of a new generation tracking detector: the MEG II cylindrical drift chamber
Performances of a new generation tracking detector: the MEG II cylindrical drift chamber Open
View article: Test and characterization of SiPMs for the upgrade of MEGII high resolution Timing Counter
Test and characterization of SiPMs for the upgrade of MEGII high resolution Timing Counter Open
The MEG II experiment based at PSI (Zuerich, Switzerland) has been committed and is taking data since 2021 to improve sensitivity on the decay μ + → e + γ . The pixelated Timing Counter (pTC), consisting of two arrays of 512 5 mm thick sci…
View article: A search for $$\upmu ^+ \rightarrow \textrm{e}^+ \upgamma $$ with the first dataset of the MEG II experiment
A search for $$\upmu ^+ \rightarrow \textrm{e}^+ \upgamma $$ with the first dataset of the MEG II experiment Open
View article: Operation and performance of the MEG II detector
Operation and performance of the MEG II detector Open
The MEG II experiment, located at the Paul Scherrer Institut (PSI) in Switzerland, is the successor to the MEG experiment, which completed data taking in 2013. MEG II started fully operational data taking in 2021, with the goal of improvin…
View article: A search for $μ^+\to e^+γ$ with the first dataset of the MEG II experiment
A search for $μ^+\to e^+γ$ with the first dataset of the MEG II experiment Open
The MEG II experiment, based at the Paul Scherrer Institut in Switzerland, reports the result of a search for the decay $μ^+\to e^+γ$ from data taken in the first physics run in 2021. No excess of events over the expected background is obs…
View article: Performances of a new generation tracking detector: the MEG II cylindrical drfit chamber
Performances of a new generation tracking detector: the MEG II cylindrical drfit chamber Open
The cylindrical drift chamber is the most innovative part of the MEG~II detector, the upgraded version of the MEG experiment. The MEG~II chamber differs from the MEG one because it is a single volume cylindrical structure, instead of a seg…
View article: Operation and performance of MEG II detector
Operation and performance of MEG II detector Open
The MEG II experiment, located at the Paul Scherrer Institut (PSI) in Switzerland, is the successor to the MEG experiment, which completed data taking in 2013. MEG II started fully operational data taking in 2021, with the goal of improvin…
View article: Measurements of Xi(c)+ branching ratios
Measurements of Xi(c)+ branching ratios Open
Using data collected by the fixed target Fermilab experiment FOCUS, we measure the branching ratios of the Cabibbo favored decays $\\Xi_c^+ \\to \\Sigma^+K^-\\pi^+$, $\\Xi_c^+ \\to \\Sigma^+ \\bar{K}^{*}(892)^0$, and $\\Xi_c^+ \\to \\Lambd…
View article: First demonstration of in-beam performance of bent Monolithic Active Pixel Sensors
First demonstration of in-beam performance of bent Monolithic Active Pixel Sensors Open
View article: The Search for μ+ → e+γ with 10–14 Sensitivity: The Upgrade of the MEG Experiment
The Search for μ+ → e+γ with 10–14 Sensitivity: The Upgrade of the MEG Experiment Open
The MEG experiment took data at the Paul Scherrer Institute in the years 2009–2013 to test the violation of the lepton flavor conservation law, which originates from an accidental symmetry that the Standard Model of elementary particle phy…
View article: arXiv : First demonstration of in-beam performance of bent Monolithic Active Pixel Sensors
arXiv : First demonstration of in-beam performance of bent Monolithic Active Pixel Sensors Open
A novel approach for designing the next generation of vertex detectors foresees to employ wafer-scale sensors that can be bent to truly cylindrical geometries after thinning them to thicknesses of 20-40$\mu$m. To solidify this concept, the…
View article: First demonstration of in-beam performance of bent Monolithic Active Pixel Sensors
First demonstration of in-beam performance of bent Monolithic Active Pixel Sensors Open
A novel approach for designing the next generation of vertex detectors foresees to employ wafer-scale sensors that can be bent to truly cylindrical geometries after thinning them to thicknesses of 20-40$μ$m. To solidify this concept, the f…
View article: Search for lepton flavour violating muon decay mediated by a new light particle in the MEG experiment
Search for lepton flavour violating muon decay mediated by a new light particle in the MEG experiment Open
View article: Timing resolution of a plastic scintillator counter read out by radiation damaged SiPMs connected in series
Timing resolution of a plastic scintillator counter read out by radiation damaged SiPMs connected in series Open
This paper discusses the effects of radiation damage to SiPMs on the performances of plastic scintillator counters with series-connected SiPM readout, focusing on timing measurements. The performances of a counter composed of a $120 \times…
View article: The laser-based time calibration system for the MEG II pixelated Timing Counter
The laser-based time calibration system for the MEG II pixelated Timing Counter Open
View article: A Laser-based Time Calibration System for the MEG II Timing Counter
A Laser-based Time Calibration System for the MEG II Timing Counter Open
We have developed a new laser-based time calibration system for the MEG II timing counter dedicated to timing measurement of positrons. The detector requires precise timing alignment between $\sim\,$500 scintillation counters. In this stud…
View article: The design of the MEG II experiment
The design of the MEG II experiment Open
View article: Status and charm physics prospects from PANDA
Status and charm physics prospects from PANDA Open
PANDA is an experiment that will run at the future facility FAIR, Darmstadt, Germany. A high intensity and cooled antiproton beam will collide on a fixed hydrogen or nuclear target covering center-of-mass energies between 2.2 and 5.5 GeV. …
View article: Search for the lepton flavour violating decay $$\mu ^+ \rightarrow \mathrm {e}^+ \gamma $$ μ + → e + γ with the full dataset of the MEG experiment
Search for the lepton flavour violating decay $$\mu ^+ \rightarrow \mathrm {e}^+ \gamma $$ μ + → e + γ with the full dataset of the MEG experiment Open
View article: Pixelated Positron Timing Counter with SiPM-readout Scintillator for MEG II experiment
Pixelated Positron Timing Counter with SiPM-readout Scintillator for MEG II experiment Open
In this paper, we introduce the positron timing counter (TC) for the MEG II experiment as an application of Silicon PhotoMultipliers (SiPM) to high-resolution timing measurement.MEG II will search for the µ → eγ decay and needs a precise m…
View article: Muon polarization in the MEG experiment: predictions and measurements
Muon polarization in the MEG experiment: predictions and measurements Open
The MEG experiment makes use of one of the world’s most intense low energy muon beams, in order to search for the lepton flavour violating process μ+→e+γ. We determined the residual beam polarization at the thin stopping target, by measuri…
View article: Measurement of the radiative decay of polarized muons in the MEG experiment
Measurement of the radiative decay of polarized muons in the MEG experiment Open
View article: Online and Offline Pattern Recognition in PANDA
Online and Offline Pattern Recognition in PANDA Open
\nPANDA is one of the four experiments that will run at the new facility FAIR that is being built in Darmstadt, Germany. It is a fixed target experiment: a beam of antiprotons collides on a jet proton target (the maximum center of mass ene…
View article: The experiment PANDA: physics with antiprotons at FAIR
The experiment PANDA: physics with antiprotons at FAIR Open
\nPANDA is an experiment that will run at the future facility FAIR, Darmstadt, Germany. A high intensity and cooled antiproton beam will collide on a fixed hydrogen or nuclear target covering center-of-mass energies between 2.2 and 5.5 GeV…
View article: The experiment PANDA: physics with antiprotons at FAIR
The experiment PANDA: physics with antiprotons at FAIR Open
PANDA is an experiment that will run at the future facility FAIR, Darmstadt, Germany. A high intensity and cooled antiproton beam will collide on a fixed hydrogen or nuclear target covering center-of-mass energies between 2.2 and 5.5 GeV. …