C. Gabbanini
A5017891155- Cold Atom Physics and Bose-Einstein Condensates
- Spectroscopy and Laser Applications
- Atomic and Subatomic Physics Research
- Quantum optics and atomic interactions
- Laser Design and Applications
- Particle physics theoretical and experimental studies
- Particle Detector Development and Performance
- Quantum, superfluid, helium dynamics
- Laser-Matter Interactions and Applications
- Radiation Detection and Scintillator Technologies
- Atomic and Molecular Physics
- Laser-induced spectroscopy and plasma
- Advanced Chemical Physics Studies
- Advanced Frequency and Time Standards
- Spectroscopy and Quantum Chemical Studies
- Strong Light-Matter Interactions
- Quantum Information and Cryptography
- Muon and positron interactions and applications
- Solid State Laser Technologies
- Mass Spectrometry Techniques and Applications
- Semiconductor Lasers and Optical Devices
- Dark Matter and Cosmic Phenomena
- Atmospheric Ozone and Climate
- Advanced Sensor Technologies Research
- Superconducting Materials and Applications
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
2017-2024
National Institute of Optics
2013-2024
Istituto di Scienza e Tecnologie dell'Informazione "Alessandro Faedo"
2018-2024
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
2015-2017
Institute for Chemical and Physical Processes
2002-2009
École Normale Supérieure - PSL
1993
Sorbonne Université
1993
University of Pisa
1985-1987
Istituto Nazionale per la Fisica della Materia
1985
We present the first results of Fermilab Muon g-2 Experiment for positive muon magnetic anomaly $a_\mu \equiv (g_\mu-2)/2$. The is determined from precision measurements two angular frequencies. Intensity variation high-energy positrons decays directly encodes difference frequency $\omega_a$ between spin-precession and cyclotron frequencies polarized muons in a storage ring. ring field measured using nuclear resonance probes calibrated terms equivalent proton spin precession...
The competition of dipole-dipole and contact interactions leads to exciting new physics in dipolar gases, well-illustrated by the recent observation quantum droplets rotons condensates. We show that combination roton instability stabilization under proper conditions a novel regime presents supersolid properties, due coexistence stripe modulation phase coherence. In combined experimental theoretical analysis, we determine parameter for formation coherent stripes, whose lifetime few tens...
We present a new measurement of the positive muon magnetic anomaly, a_{μ}≡(g_{μ}-2)/2, from Fermilab Muon g-2 Experiment using data collected in 2019 and 2020. have analyzed more than 4 times number positrons decay our previous result 2018 data. The systematic error is reduced by factor 2 due to better running conditions, stable beam, improved knowledge field weighted distribution, ω[over ˜]_{p}^{'}, anomalous precession frequency corrected for beam dynamics effects, ω_{a}. From ratio...
The Muon g-2 Experiment at Fermi National Accelerator Laboratory (FNAL) has measured the muon anomalous precession frequency $ω_a$ to an uncertainty of 434 parts per billion (ppb), statistical, and 56 ppb, systematic, with data collected in four storage ring configurations during its first physics run 2018. When combined a precision measurement magnetic field experiment's ring, determines anomaly $a_μ({\rm FNAL}) = 116\,592\,040(54) \times 10^{-11}$ (0.46 ppm). This article describes...
Progress on researches in the field of molecules at cold and ultracold temperatures is reported this review. It covers extensively experimental methods to produce, detect characterize including association atoms, deceleration by external fields kinematic cooling. Confinement different kinds traps also discussed. The basic theoretical issues related knowledge molecular structure, atom-molecule molecule-molecule mutual interactions, their possible manipulation control with fields, are...
The Fermi National Accelerator Laboratory has measured the anomalous precession frequency $a^{}_\mu = (g^{}_\mu-2)/2$ of muon to a combined precision 0.46 parts per million with data collected during its first physics run in 2018. This paper documents measurement magnetic field storage ring. is monitored by nuclear resonance systems and calibrated terms equivalent proton spin spherical water sample at 34.7$^\circ$C. weighted distribution resulting $\tilde{\omega}'^{}_p$, denominator ratio...
A key manifestation of superfluidity in liquids and gases is a reduction the moment inertia under slow rotations. Non-classical rotational effects have been searched for long time also elusive supersolid phase matter, which coexists with lattice structure. Here we show that recently discovered dipolar quantum features reduced inertia. We study peculiar oscillation mode harmonic potential, scissors mode, already employed superfluids. From measured inertia, infer superfluid fraction different...
Supersolids are a fundamental quantum phase of matter where the global and translational symmetries spontaneously broken. The recently discovered supersolidity in gases strongly magnetic atoms gives opportunity to explore depth how superfluidity crystalline order mixed this fascinating phase. dipolar supersolid is usually created from Bose-Einstein condensate, i.e., standard superfluid, crossing transition that related crystallization transitions ordinary matter. In work, we assess...
We present details on a new measurement of the muon magnetic anomaly, $a_\mu = (g_\mu -2)/2$. The result is based positive data taken at Fermilab's Muon Campus during 2019 and 2020 accelerator runs. uses $3.1$ GeV$/c$ polarized muons stored in $7.1$-m-radius storage ring with $1.45$ T uniform field. value $ a_{\mu}$ determined from measured difference between spin precession frequency its cyclotron frequency. This normalized to strength field, using Nuclear Magnetic Resonance (NMR). ratio...
We report the first observation of translationally cold ( $\ensuremath{\sim}90\ensuremath{\mu}\mathrm{K}$) ${\mathrm{Rb}}_{2}$ molecules. They are produced in a magneto-optical trap their triplet ground state. The detection is performed by selective mass spectroscopy after two-photon ionization into ${\mathrm{Rb}}_{2}^{+}$, resonantly enhanced through intermediate $a{}^{3}{\ensuremath{\Sigma}}_{u}^{+}\ensuremath{\rightarrow}2{}^{3}{\ensuremath{\Pi}}_{g}$ molecular band. two rubidium isotopes...
We present a new measurement of the positive muon magnetic anomaly, $a_\mu \equiv (g_\mu - 2)/2$, from Fermilab Muon $g\!-\!2$ Experiment using data collected in 2019 and 2020. have analyzed more than 4 times number positrons decay our previous result 2018 data. The systematic error is reduced by factor 2 due to better running conditions, stable beam, improved knowledge field weighted distribution, $\tilde{\omega}'^{}_p$, anomalous precession frequency corrected for beam dynamics effects,...
The Josephson effect characterizes superfluids and superconductors separated by a weak link, the so-called junction. A recent experiment has shown that oscillations can be observed also in supersolid, where link is not due to an external barrier, but self-induced interparticle interactions. Here we show theoretically supersolids -- despite their character feature all standard properties of bosonic junction arrays, including macroscopic quantum self-trapping. We focus on harmonically trapped...
We present a detailed study of the ${0}_{g}^{\ensuremath{-}}{(P}_{3/2})$ pure long-range electronic state ${}^{87}{\mathrm{Rb}}_{2}$ molecule. The high-resolution spectral data provided by photoassociative spectroscopy is analyzed using generalized simulated annealing method. dipole matrix element $5p$ ${}^{87}\mathrm{Rb}$ atomic and other effective asymptotic parameters for are determined complete analytical description potential well obtained. extract radiative lifetime ${5P}_{3/2}$...
We produce Bose-Einstein condensates of $^{162}$Dy atoms employing an innovative technique based on a resonator-enhanced optical trap that allows efficient loading from the magneto-optical and fast evaporation. characterize scattering properties ultracold for magnetic fields between 6 30 G. In addition to typical chaotic distribution narrow Feshbach resonances in Lanthanides, we discover two rather isolated broad features at around 22 G 27 A characterization using complementary measurements...
We have developed a custom amplifier board coupled to large-format 16-channel Hamamatsu silicon photomultiplier device for use as the light sensor electromagnetic calorimeters in Muon g-2 experiment at Fermilab. The calorimeter absorber is an array of lead-fluoride crystals, which produces short-duration Cherenkov light. detector sits high magnetic field muon storage ring. SiPMs selected, and their accompanying electronics, must preserve short pulse shape, quantum efficiency, be...
Ultracold metastable RbCs molecules are observed in a double species magneto-optical trap through photoassociation near the Rb(5S1/2) + Cs(6P3/2) dissociation limit followed by radiative stabilization. The formed their lowest triplet electronic state and detected resonance enhanced two-photon ionization previously unobserved (3)3Π ← 3Σ+ band. large rotational structure of lines is assigned to vibrational levels 0+ or 0− excited states correlated Rb(5P1/2) Cs(6S1/2) limit. This demonstrates...
The anomalous magnetic moment of the muon is one most precisely measured quantities in experimental particle physics. Its latest measurement at Brookhaven National Laboratory deviates from Standard Model expectation by approximately 3.5 standard deviations. goal new experiment, E989, now under construction Fermilab, a fourfold improvement precision. Here, we discuss details future and its current status.
The rate constants of the energy-pooling collisions in Na-Rb and K-Rb vapor mixtures, resonantly excited by two cw dye lasers, have been measured relative to a known constant homonuclear reaction. To isolate heteronuclear contribution fluorescence spectrum, double-modulation technique has adopted. effective lifetimes levels that explicitly appear solution equation directly using pulsed lasers. A discussion about collision cross-section dependence on energy defect involved is reported.