A. Cardini
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View article: Search for the decay B0 → ϕϕ
Search for the decay B0 → ϕϕ Open
A bstract A search for the decay B 0 → ϕϕ is made using pp collision data collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb − 1 . No significant signal is obse…
View article: Search for the lepton-flavour-violating decays B0 → K*0τ±e∓
Search for the lepton-flavour-violating decays B0 → K*0τ±e∓ Open
A bstract A first search at LHCb for the lepton-flavour-violating decays B 0 → K *0 τ ± e ∓ is presented. The analysis is performed using a sample of proton-proton collision data, collected with the LHCb detector at a centre-of-mass energy…
View article: The impact of local noise recorded at the ET candidate sites on the signal to noise ratio of CBC gravitational wave signals for the ET triangle configuration
The impact of local noise recorded at the ET candidate sites on the signal to noise ratio of CBC gravitational wave signals for the ET triangle configuration Open
We present an evaluation of how site dependent noise can affect the signal to noise ratio (SNR) of compact binary coalescence (CBC) signals in the future 3rd generation gravitational wave (GW) detector Einstein telescope (ET). The design o…
View article: Seismic noise characterization for the Buddusò–Ala dei Sardi wind park (Sardinia, Italy) and its impact on the Einstein Telescope candidate site
Seismic noise characterization for the Buddusò–Ala dei Sardi wind park (Sardinia, Italy) and its impact on the Einstein Telescope candidate site Open
Wind turbines generate considerable seismic noise and interfere with sensitive instruments, such as permanent and temporary seismic sensors installed nearby, hampering their detection capabilities. This study investigates the seismic noise…
View article: Seismic noise characterisation for the Buddusò – Ala dei Sardi wind park (Sardinia, Italy) and its impact on the Einstein Telescope candidate site
Seismic noise characterisation for the Buddusò – Ala dei Sardi wind park (Sardinia, Italy) and its impact on the Einstein Telescope candidate site Open
Wind turbines generate significant seismic noise and interfere with sensitive instruments, such as permanent and temporary seismic sensors installed nearby, hampering their detection capabilities. This study investigates the seismic noise …
View article: Il serpente fra mito, rito e tradizione. Note a partire da due coltelli con motivi ofidici
Il serpente fra mito, rito e tradizione. Note a partire da due coltelli con motivi ofidici Open
This article aims to investigate the figure of the serpent through some of the most widespread myths and legends in various cultures. The study starts from the presence of two knives with ophidian motifs in the Museum of Anthropology and E…
View article: Correlated 0.01–40 Hz seismic and Newtonian noise and its impact on future gravitational-wave detectors
Correlated 0.01–40 Hz seismic and Newtonian noise and its impact on future gravitational-wave detectors Open
We report correlations in underground seismic measurements with horizontal\nseparations of several hundreds of meters to a few kilometers in the frequency\nrange 0.01Hz to 40Hz. These seismic correlations could threaten science goals\nof p…
View article: Characterisation of highly irradiated 3D trench silicon pixel sensors for 4D tracking with 10 ps timing accuracy
Characterisation of highly irradiated 3D trench silicon pixel sensors for 4D tracking with 10 ps timing accuracy Open
3D trench silicon pixel sensors, recently developed by the TimeSPOT collaboration, have shown excellent performance in terms of spatial resolution, timing precision and detection efficiency. The combination of these three features make the…
View article: A prototype 4D-tracking demonstrator based on the TimeSPOT developments
A prototype 4D-tracking demonstrator based on the TimeSPOT developments Open
We present first results obtained with a prototype 4D-tracking demonstrator, using sensors and electronics developed within the TimeSPOT project, and tested on a positive charged pion beam at CERN SPS. The setup consists of five small trac…
View article: Characterizing the Sardinia candidate site for the Einstein Telescope
Characterizing the Sardinia candidate site for the Einstein Telescope Open
Due to its unique geophysical features and to the low density population of the area, Sos Enattos is a promising candidate site to host the Einstein Telescope (ET), the third-generation Gravitational Wave Observatory. The geophysical chara…
View article: Position-resolved timing characterisation tests of hexagonal and trench 3D silicon detectors
Position-resolved timing characterisation tests of hexagonal and trench 3D silicon detectors Open
Position-resolved timing characterisation tests were performed on individual pixels of hexagonal and trench 3D silicon sensors. An IR laser was used to deposit energy equivalent to 1 MIP with a 1μm spatial resolution onto each sensor, whic…
View article: Charged-particle timing with 10 ps accuracy using TimeSPOT 3D trench-type silicon pixels
Charged-particle timing with 10 ps accuracy using TimeSPOT 3D trench-type silicon pixels Open
For the next generation of vertex detectors, the accurate measurement of the charged particle timing at the pixel level is considered to be the ultimate solution in experiments operating at very high instantaneous luminosities. This work s…
View article: 10 ps timing with highly irradiated 3D trench silicon pixel sensors
10 ps timing with highly irradiated 3D trench silicon pixel sensors Open
In this paper the results of a beam test characterization campaign of 3D trench silicon pixel sensors are presented. A time resolution in the order of 10 ps was measured both for non-irradiated and irradiated sensors up to a fluence of 2.5…
View article: Picosecond timing resolution with 3D trench silicon sensors
Picosecond timing resolution with 3D trench silicon sensors Open
Future vertex detectors operating in colliders at very high instantaneous luminosity will face great challenges in the event reconstruction due to the increase in track density. To guarantee good detector performance the additional informa…
View article: A Method Based on Muon System to Monitor LHCb Luminosity
A Method Based on Muon System to Monitor LHCb Luminosity Open
LHCb is one of the four main experiments running at the Large Hadron Collider (LHC) of the European Organization for Nuclear Research. Since 2010, it has been collecting data to study the Physics of b and c quarks. For the past three years…
View article: A Comparison of CPU and GPU Implementations for the LHCb Experiment Run 3 Trigger
A Comparison of CPU and GPU Implementations for the LHCb Experiment Run 3 Trigger Open
The Large Hadron Collider beauty (LHCb) experiment at CERN is undergoing an upgrade in preparation for the Run 3 data collection period at the Large Hadron Collider (LHC). As part of this upgrade, the trigger is moving to a full software i…
View article: Accurate modelling of 3D-trench silicon sensor with enhanced timing performance and comparison with test beam measurements
Accurate modelling of 3D-trench silicon sensor with enhanced timing performance and comparison with test beam measurements Open
This paper presents the detailed simulation of a double-pixel structure for charged particle detection based on the 3D-trench silicon sensor developed for the TIMESPOT project and a comparison of the simulation results with measurements pe…
View article: Accurate modelling of 3D-trench silicon sensor with enhanced timing performance and comparison with test beam measurements
Accurate modelling of 3D-trench silicon sensor with enhanced timing performance and comparison with test beam measurements Open
This paper presents the detailed simulation of a double-pixel structure for charged particle detection based on the 3D-trench silicon sensor developed for the TIMESPOT project and a comparison of the simulation results with measurements pe…
View article: Muon identification for LHCb Run 3
Muon identification for LHCb Run 3 Open
Muon identification is of paramount importance for the physics programme of\nLHCb. In the upgrade phase, starting from Run 3 of the LHC, the trigger of the\nexperiment will be solely based on software. The luminosity increase to\n$2\\times…
View article: Fabrication and Characterisation of 3D Diamond Pixel Detectors With Timing Capabilities
Fabrication and Characterisation of 3D Diamond Pixel Detectors With Timing Capabilities Open
Diamond sensors provide a promising radiation hard solution to the challenges posed by the future experiments at hadron machines. A 3D geometry with thin columnar resistive electrodes orthogonal to the diamond surface, obtained by laser na…
View article: Characterization of the Sos Enattos site for the Einstein Telescope
Characterization of the Sos Enattos site for the Einstein Telescope Open
In this work we report the ongoing characterization of the Sos Enattos former mine (Sardinia, Italy), one of the two candidate sites for the Einstein Telescope (ET), the European third-generation underground interferometric detector of Gra…
View article: Radiation hardness test of the nSYNC ASIC with 60 MeV proton beam
Radiation hardness test of the nSYNC ASIC with 60 MeV proton beam Open
The nSYNC chip is a radiation tolerant custom ASIC, developed in UMC 130 nm technology for the upgrade of the readout electronics of the LHCb Muon System. The chip will work, over ten years of upgrade operation, in a radioactive environmen…
View article: Long-term operation of the multi-wire-proportional-chambers of the LHCb muon system
Long-term operation of the multi-wire-proportional-chambers of the LHCb muon system Open
The muon detector of LHCb, which comprises 1368 multi-wire-proportional-chambers (MWPC) for a total area of 435 m2 , is the largest instrument of its kind exposed to such a high-radiation environment. In nine years of operation, from 2010 …