Francesco Sgaramella
A5002599399- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Atomic and Subatomic Physics Research
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Ionosphere and magnetosphere dynamics
- Dark Matter and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- High-pressure geophysics and materials
- Nuclear Physics and Applications
- Noncommutative and Quantum Gravity Theories
- Quantum Mechanics and Applications
- Advanced Semiconductor Detectors and Materials
- Radioactive Decay and Measurement Techniques
- Magnetic confinement fusion research
- Solar and Space Plasma Dynamics
- Geophysics and Gravity Measurements
- X-ray Spectroscopy and Fluorescence Analysis
- Advanced X-ray and CT Imaging
- Neutrino Physics Research
- Nuclear physics research studies
- Muon and positron interactions and applications
- Advanced Chemical Physics Studies
- Geomagnetism and Paleomagnetism Studies
- Service-Oriented Architecture and Web Services
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
2020-2024
Istituto Nazionale di Fisica Nucleare
2021-2024
Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering
2021-2023
University of Rome Tor Vergata
2021-2022
Excellence Cluster Universe
2021-2022
Technical University of Munich
2022
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso
2022
Enrico Fermi Center for Study and Research
2021-2022
Stefan Meyer Institute for Subatomic Physics
2021-2022
Czech Academy of Sciences, Institute of Physics
2022
The possible existence of deeply bound $\bar K$-nucleus states (kaonic nuclei) has been widely discussed as a consequence the strongly attractive K N$ interaction in I = 0 channels. For simplest kaonic nucleus, KNN$, we observed significant peak structure that can be interpreted ``$K^-pp$'' state using $^3$He$(K^-,N)$ reactions at J-PARC. To further understand nuclei, have proposed and prepared an experiment to precisely measure NNN$ system $^4$He$(K^-,N)$ first step towards comprehensive...
The SIDDHARTA-2 collaboration is performing research in the field of kaonic atoms spectroscopy. In this work, following an introduction on and their importance for development low-energy strong interaction theories, first result experiment (kaonic helium) presented. This measurement was promising view main goal experiment, i.e. deuterium transitions to 1s level, important model kaon-nucleon interaction. last part paper future plans measure new key quantities with beyond stat-of-the-art...
A large area silicon drift detectors (SDDs) system and its readout electronics have been developed by the SIDDHARTA-2 Collaboration, aiming to perform high-precision light kaonic atoms x-ray spectroscopy for investigation of strong interaction in low-energy QCD regime. To these measurements, a linear energy response good resolution are mandatory requirements system, be preserved along whole DAQ (analog digital) chain; such task is made even harder experimental environment particles...
Abstract The current work presents the optimization of large area silicon drift detectors developed by SIDDHARTA-2 collaboration for high precision x-ray measurements light exotic atom transitions. Two different radiation sources were employed in study: an tube, investigating energy resolution and charge collection efficiency device range 4000 eV–13 000 eV, a β − 90 Sr radioactive source measuring timing response, thus qualifying parameters inside semiconductor. study reports spectroscopic...
The most important information still missing in the field of low-energy antikaon-nucleon inter actions studies is experimental determination hadronic energy shift and width kaonic deuterium. This measurement will be performed by SIDDHARTA-2 experiment, installed at DAΦNE collider presently data taking campaign. precise 1s level with respect to purely electromagnetic calculated values, generated presence strong interaction, through X-ray transitions this level, hydrogen, was SIDDHARTA...
The SIDDHARTINO experiment at the DA{\Phi}NE Collider of INFN-LNF, pilot run for SIDDHARTA-2 which aims to perform measurement kaonic deuterium transitions fundamental level, has successfully been concluded. paper reports main results this run, including optimization various components apparatus, among degrader needed maximize fraction kaons stopped inside target, through measurements helium 2p level. obtained shift and width values are {\epsilon}_2p = E_exp-E_e.m 0.2 {\pm} 2.5(stat) 2(syst)...
Violations of the Pauli Exclusion Principle (PEP), albeit small, could be motivated by physics beyond Standard Model, ranging from violation Lorentz invariance to extra space dimensions. This scenario can experimentally constrained through dedicated, state-of-the-art X-ray spectroscopy, searching for a forbidden atomic transition L shell K already occupied two electrons. The VIP-2 Experiment located at underground Gran Sasso National Laboratories INFN (Italy) tests PEP violations introducing...
Abstract The SIDDHARTA-2 experiment at the DAΦNE collider aims to perform first kaonic deuterium x-ray transitions fundamental level measurement, with a systematic error of few eV. To achieve this challenging goal experimental apparatus is equipped 384 Silicon Drift Detectors (SDDs) distributed around its cryogenic gaseous target. SDDs developed by collaboration are suitable for high precision atoms spectroscopy, thanks their energy and time resolutions combined radiation hardness. response...
Abstract In this paper we present the results of a new kaonic helium-4 measurement with 1.37 g l −1 gaseous target by SIDDHARTA-2 experiment at DAΦNE collider. We measured, for first time, energies and yields three transitions belonging to M-series. Moreover, improved factor about three, statistical precision 2p level energy shift width induced strong interaction, obtaining most precise helium, measured yield L α transition employed density, providing experimental input investigate density...
A large-area silicon drift detectors (SDDs) system has been developed by the SIDDHARTA-2 collaboration for high precision light kaonic atom X-ray spectroscopy at DAΦNE collider of Istituto Nazionale di Fisica Nucleare—Laboratori Nazionali Frascati. The SDDs’ geometry and electric field configuration, combined with their read-out electronics, make these devices suitable performing measurements in background collider. This work presents spectroscopic response SDDs during first exotic atoms run...
The aim of the SIDDHARTA-2 experiment is to perform first measurement ever width and shift induced by strong interaction 2p→1s energy transition kaonic deuterium. This ambitious goal implies a challenging task due very low X-ray yield deuterium, which why an accurate thorough characterization experimental apparatus mandatory before starting data-taking campaign. Helium-4 excellent candidate for this since it exhibits high in particular 3d→2p transition, roughly 100 times greater than that...
In this work, we report on tests performed with an experimental apparatus prototype based a broad-energy germanium detector aimed at investigating topical, foundational issues in quantum mechanics: i.e., possible violations of the spin-statistics connection and models dynamical wave function collapse. Our recent phenomenological analyses demonstrated importance pushing research new physics signal, predicted these fields, to energy range below 10 keV. We describe development dedicated data...
Modern physics lays its foundations on the pillars of Quantum Mechanics (QM), which has been proven successful to describe microscopic world atoms and particles, leading construction Standard Model. Despite big success, old open questions at very heart, such as measurement problem wave function collapse, are still open. Various theories consider scenarios could encompass a departure from predictions standard QM, extra-dimensions or deformations Lorentz/Poincaré symmetries. At Italian...
Kaonic atom X-ray spectroscopy is a consolidated technique for investigations on the physics of strong kaon-nucleus/nucleon interaction. Several experiments have been conducted regarding measurement soft emission (<20 keV) from light kaonic atoms (hydrogen, deuterium, and helium). Currently, there new research activities within framework SIDDHARTA-2 experiment EXCALIBUR proposal focusing performing precise accurate measurements hard X-rays (>20 intermediate (carbon, aluminum, sulfur). In...
Kaonic atoms are a unique tool to explore quantum chromodynamics in the strangeness sector at low energy, with implications reaching neutron stars and dark matter. Precision X-ray spectroscopy can fully unlock at-threshold isospin dependent antikaon-nucleon scattering lengths, via atomic transitions fundamental level. While SIDDHARTA experiment INFN-LNF DA$\Phi$NE collider successfully measured kaonic hydrogen, its successor SIDDHARTA-2 is starting now data taking campaign aiming finally...
Abstract The Veto-2 is a fundamental component of multiple-stage veto system for the SIDDHARTA-2 experiment installed at DAΦNE collider INFN-LNF in Italy. It was developed to improve signal-to-background ratio challenging measurement X-ray transitions level kaonic deuterium. Its purpose suppression hadronic background form Minimum Ionizing Particles by using topological correlation between signals and detectors. consists barrel plastic scintillators read out Silicon Photomultipliers....
The low-energy, non-perturbative regime of QCD can be studied directly by X-ray spectroscopy light kaonic atoms. SIDDHARTA-2 experiment, located at the DAΦNE collider, aims to measure 2 p → 1 s transition in deuterium for first time extract antikaon-nucleon scattering lengths. This measurement is impeded, inter alia, low K − d yield. Hence, several updates have been implemented on apparatus increase signal-to-background ratio, which are discussed detail this paper: a lightweight gas target...
Abstract The SIDDHARTA-2 collaboration is aiming to perform the challenging measurement of kaonic deuterium X-ray transitions ground state. This will allow extract isospin-dependent antikaon-nucleon scattering lengths, providing input theory Quantum Chromodynamics (QCD) in non-perturbative regime with strangeness. work describes experimental apparatus and presents results obtained during commissioning phase realized helium measurements. In particular, first observation 3s level (M-lines),...
This study is aimed to set severe constraints on a whole class of non-commutative space-times scenarios as universality for several quantum gravity models. To this end, slight violations the Pauli exclusion principle—predicted by these models—are investigated searching forbidden Kα and Kβ transitions in lead. The selection high atomic number target material allows test energy scale space-time non-commutativity emergence at transition energies. As consequence, measurement very sensitive...