0000000000067282

AUTHOR

Laura Elisa Marcucci

showing 3 related works from this author

Comparing proton momentum distributions in A = 2 and 3 nuclei via 2H 3H and 3He (e,e′p) measurements

2019

We report the first measurement of the $(e,e'p)$ reaction cross-section ratios for Helium-3 ($^3$He), Tritium ($^3$H), and Deuterium ($d$). The measurement covered a missing momentum range of $40 \le p_{miss} \le 550$ MeV$/c$, at large momentum transfer ($\langle Q^2 \rangle \approx 1.9$ (GeV$/c$)$^2$) and $x_B>1$, which minimized contributions from non quasi-elastic (QE) reaction mechanisms. The data is compared with plane-wave impulse approximation (PWIA) calculations using realistic spectral functions and momentum distributions. The measured and PWIA-calculated cross-section ratios for $^3$He$/d$ and $^3$H$/d$ extend to just above the typical nucleon Fermi-momentum ($k_F \approx 250$ …

production [pi]Nuclear and High Energy Physicsdata analysis methodPhotonNuclear TheoryNuclear TheoryinterferenceFOS: Physical sciencesElectronImpulse (physics)Inelastic scattering01 natural sciencesxperimental results | Jefferson Lab | electron p: scattering | parity: violation | inelastic scattering | structure function | interference | photon | Z0 | pi: production | spin: asymmetry | data analysis methodNuclear Theory (nucl-th)structure function0103 physical sciencesZ0Nuclear Experiment (nucl-ex)010306 general physicsNuclear ExperimentNuclear ExperimentPhysics010308 nuclear & particles physicsMomentum transferphotoninelastic scatteringscattering [electron p]Eikonal approximationNATURAL SCIENCES. Physics.lcsh:QC1-999PRIRODNE ZNANOSTI. Fizika.Deuteriumxperimental resultsHigh Energy Physics::Experimentviolation [parity]Atomic physicsNucleonasymmetry [spin]lcsh:PhysicsJefferson LabPhysics Letters B
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Non-symmetrized Hyperspherical Harmonics Method for Non-equal Mass Three-Body Systems

2018

The non-symmetrized hyperspherical harmonics method for a three-body system, composed by two particles having equal masses, but different from the mass of the third particle, is reviewed and applied to the $^3$H, $^3$He nuclei and $^3_{\Lambda}$H hyper-nucleus, seen respectively as $nnp$, $ppn$ and $NN\Lambda$ three-body systems. The convergence of the method is first tested in order to estimate its accuracy. Then, the difference of binding energy between $^3$H and $^3$He due to the difference of the proton and the neutron masses is studied using several central spin-independent and spin-dependent potentials. Finally, the $^3_{\Lambda}$H hypernucleus binding energy is calculated using diffe…

3HeProtonMaterials Science (miscellaneous)hypertritonBinding energyBiophysicsGeneral Physics and AstronomyLambda01 natural sciencesthree-body systemstriton0103 physical sciencesNeutronhypersperical harmonics methodPhysical and Theoretical Chemistry010306 general physicsMathematical PhysicsMathematical physicsPhysics010308 nuclear & particles physicslight nucleiOrder (ring theory)Hypernucleuslcsh:QC1-999Harmonicslcsh:PhysicsHypertritonFrontiers in Physics
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Electromagnetic structure of few-nucleon ground states

2015

Experimental form factors of the hydrogen and helium isotopes, extracted from an up-to-date global analysis of cross sections and polarization observables measured in elastic electron scattering from these systems, are compared to predictions obtained in three different theoretical approaches: the first is based on realistic interactions and currents, including relativistic corrections (labeled as the conventional approach); the second relies on a chiral effective field theory description of the strong and electromagnetic interactions in nuclei (labeled $\chi$EFT); the third utilizes a fully relativistic treatment of nuclear dynamics as implemented in the covariant spectator theory (labeled…

QuarkNuclear and High Energy PhysicsParticle physicsNuclear TheoryNuclear TheoryDegrees of freedom (physics and chemistry)FOS: Physical sciencescharge and magnetic radiiElectromagnetic properties01 natural sciences7. Clean energychiral effective field theoryNuclear Theory (nucl-th)Momentum0103 physical sciencesEffective field theoryCovariant transformationNuclear Experiment (nucl-ex)010306 general physicsform factorsNuclear ExperimentIsotopes of heliumPhysics010308 nuclear & particles physicselectric quadrupole and magnetic dipole momentslight nucleiGluoncharge and magnetic radii; chiral effective field theory; covariant spectator theory; electric quadrupole and magnetic dipole moments; form factors; light nuclei; Nuclear and High Energy Physicscovariant spectator theoryFew-nucleon ground statesNucleonJournal of Physics G: Nuclear and Particle Physics
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