0000000000867128

AUTHOR

L. E. Marcucci

showing 2 related works from this author

A design for an electromagnetic filter for precision energy measurements at the tritium endpoint

2019

We present a detailed description of the electromagnetic filter for the PTOLEMY project to directly detect the Cosmic Neutrino Background (CNB). Starting with an initial estimate for the orbital magnetic moment, the higher-order drift process of E×B is configured to balance the gradient-B drift motion of the electron in such a way as to guide the trajectory into the standing voltage potential along the mid-plane of the filter. As a function of drift distance along the length of the filter, the filter zooms in with exponentially increasing precision on the transverse velocity component of the electron kinetic energy. This yields a linear dimension for the total filter length that is exceptio…

Nuclear and High Energy PhysicsPhysics - Instrumentation and DetectorsFOS: Physical sciencesElectron7. Clean energy01 natural sciencesPartícules (Física nuclear)Hamiltonian systemNeutrino massRelic neutrino0103 physical sciencesTransverse drift filter010306 general physicsInstrumentation and Methods for Astrophysics (astro-ph.IM)PTOLEMYPhysicsMagnetic moment010308 nuclear & particles physicsCNB; Cosmic Neutrino Background; Neutrino mass; PTOLEMY; Relic neutrino; Transverse drift filterInstrumentation and Detectors (physics.ins-det)CNBFilter (signal processing)CNB; Cosmic Neutrino Background; Neutrino mass; PTOLEMY; Relic neutrino; Transverse drift filter; Nuclear and High Energy PhysicsComputational physicsEnergy conservationHarmonicAstrophysics - Instrumentation and Methods for AstrophysicsNeutrino maEnergy (signal processing)Cosmic Neutrino BackgroundVoltageProgress in Particle and Nuclear Physics
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Measurement of double-polarization asymmetries in the quasi-elastic Process

2018

We report on a precise measurement of double-polarization asymmetries in electron-induced breakup of He3 proceeding to pd and ppn final states, performed in quasi-elastic kinematics at Q2=0.25(GeV/c)2 for missing momenta up to 250MeV/c. These observables represent highly sensitive tools to investigate the electromagnetic and spin structure of He3 and the relative importance of two- and three-body effects involved in the breakup reaction dynamics. The measured asymmetries cannot be satisfactorily reproduced by state-of-the-art calculations of He3 unless their three-body segment is adjusted, indicating that the spin-dependent part of the nuclear interaction governing the three-body breakup pr…

PhysicsNuclear and High Energy Physics010308 nuclear & particles physicsNuclear TheoryObservableKinematicsSpin structurePolarization (waves)Breakup01 natural sciencesp-processNuclear interactionNuclear physicsReaction dynamics0103 physical sciencesNuclear Experiment010306 general physicsPhysics Letters
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