A5059033735- Particle Detector Development and Performance
- Particle physics theoretical and experimental studies
- Muon and positron interactions and applications
- High-Energy Particle Collisions Research
- Radiation Detection and Scintillator Technologies
- Neutrino Physics Research
- Quantum Chromodynamics and Particle Interactions
- Atomic and Subatomic Physics Research
- Advanced Semiconductor Detectors and Materials
- Particle accelerators and beam dynamics
- Superconducting Materials and Applications
- Advanced Data Storage Technologies
- Bacteriophages and microbial interactions
- Black Holes and Theoretical Physics
Istituto Nazionale di Fisica Nucleare, Sezione di Roma I
2025
Sapienza University of Rome
2024-2025
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
2022
Abstract True muonium (TM) ( μ + − ) is the heaviest and smallest bound state not containing hadrons, after TM τ mu-tauonium ± ∓ ). One of proposed methods to observe spin 1 fundamental TM, which has lifetime among states, was build an e collider with a large crossing angle θ ∼ 30°) in order provide boost detect its decay vertex . The following paper will instead show that excited states can be observed relatively quantities <?CDATA ${ \mathcal O }$?> <mml:math...
True muonium ($\mu^+\mu^-$) is one of the cleanest bound states, being composed only leptons, along with true tauonium and positronium. Unlike latter, have not been observed so far. This article shows that spin-0 state (para-TM), decaying into two photons, can be at a discovery level significance in dataset already collected by Belle-II experiment $\Upsilon (4S)$ peak, certain assumptions on systematic uncertainties. Para-TM produced via photon-photon fusion, its observation based detection...
The Crilin calorimeter is a semi-homogeneous calorimetric system that uses Lead Fluoride (PbF 2 ) crystals with UV-extended Silicon Photomultipliers (SiPMs). Proposed for the Muon Collider, it requires high granularity to distinguish signal particles and address substructures jet identification. Anticipating substantial occupancy due beam-induced backgrounds, simulations indicate photon flux an average energy of 1.7 MeV approximately 4.5 MHz/cm fluence rate. Prioritizing time-of-arrival...
In the next years, Large Hadron Collider will enter its High-Luminosity (HL-LHC) phase. Many CMS subsystems be upgraded to maintain current physics performance, despite higher levels of pileup and radiation. To further mitigate pileup, a MIP Timing Detector (MTD) for charged particles constructed, with target time resolution 30 - 60 ps, distinguish primary vertices tracks using timing information. The detector positioned between tracker electromagnetic calorimeter. MTD is divided into two...
True muonium ($\mu^+\mu^-$) is one of the heaviest and smallest electromagnetic bound states not containing hadrons, has never been observed so far. In this work it shown that spin-1 TM state (ortho-TM) can be at a discovery level significance in three months CERN SPS North-Area H4A beam line, using 43.7 GeV secondary positrons. way, by impinging positrons on multiple thin low-Z targets, ortho-TM, which decays predominantly to $e^+e^-$, produced from $e^+e^- \to TM$ interactions resonance...
True muonium (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msup><a:mi>μ</a:mi><a:mo>+</a:mo></a:msup><a:msup><a:mi>μ</a:mi><a:mo>−</a:mo></a:msup></a:math>) is one of the heaviest and smallest electromagnetic bound states not containing hadrons, has never been observed so far. In this work we show that spin-1 TM state (ortho-TM) can be at a discovery level significance in three months CERN SPS North-Area H4A beam line, using 43.7 GeV secondary positrons. way, by...
The Crilin calorimeter introduces a new concept in the development of electromagnetic calorime- ters for future colliders, particularly Muon Collider. It is based on unique semi-homogeneous design, using stackable, interchangeable matrices lead fluoride (PbF2) crystals employed as high- density Cherenchov radiators, read out by surface-mount UV-extended Silicon Photo-multipliers. This structure allows reducing beam-induced backgrounds (BIB) present at Collider, while maintaining excellent...
Abstract This paper presents the development and performance of particle tracker employing a 3×3 cm 2 plastic scintillator tile with sixteen 4×4 mm SiPMs coupled to one its faces. The light distribution inside allows reconstruct hit position using charge information all SiPMs. Performance tests were conducted at Frascati National Laboratory Beam Test Facility (LNF-BTF) 450 MeV electron beam. device showed MIP-counting capabilities, high efficiency (96%), good timing (170 ps) sub-mm...
The Mu2e calorimeter will employ Readout Units, each made of two Silicon Photomultipliers arrays and Front End Electronics boards. To calibrate them, we have designed, assembled put in operation an automated Quality Control (QC) station. Gain, collected charge photon detection efficiency are evaluated for unit. In this paper, the QC Station is presented, its hardware software aspects, summarizing also tests performed on ROUs first measurement results.