Trinucleon Electromagnetic Form Factors and the Light-Front Hamiltonian Dynamics

Baroncini, F. A.; Kievsky, A.; Pace, E.; Salmè, G.

doi:10.1063/1.3013052

Cited by 5 publications

(4 citation statements)

References 14 publications

(39 reference statements)

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“…[19], and with the non-relativistic part of the calculation in Ref. [20]. For the values of ∆ 2 which are relevant for the coherent pro- cess under investigation here, i.e., −∆ 2 < ∼ 0.2 GeV 2 , our results compare well also with the data.…”

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confidence: 82%

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Neutron orbital structure from generalized parton distributions of3He

Rinaldi

Scopetta

2012

Phys. Rev. C

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The generalized parton distribution H and E of the 3 He nucleus, which could be measured in hard exclusive processes, such as coherent deeply virtual Compton scattering, are thoroughly analyzed in impulse approximation, within the Av18 interaction. It is found that their sum is dominated to a large extent by the neutron contribution: The peculiar spin structure of 3 He makes this target unique for the extraction of the neutron information. This observation could allow to access for the first time, in dedicated experiments, the orbital angular momentum of the partons in the neutron.

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supporting

confidence: 82%

“…[19], and with the non-relativistic part of the calculation in Ref. [20]. For the values of ∆ 2 which are relevant for the coherent pro- x(H q (x,∆ 2 ,ξ) + E q (x,∆ 2 ,ξ))…”

mentioning

confidence: 99%

Neutron orbital structure from generalized parton distributions of3He

Rinaldi

Scopetta

2012

Phys. Rev. C

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“…One should also mention the light-front relativistic Hamiltonian dynamics (RHD) which takes the three-body forces [7] into account.…”

Section: Introductionmentioning

confidence: 99%

Trinucleon form factors with relativistic multirankseparable kernels

Bondarenko,

Burov,

Yurev

2021

Preprint

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This paper studies elastic electron-trinucleon scattering in the relativistic impulse approximation. The amplitudes for a trinucleon have been obtained by solving the relativistic generalization of the Faddeev equations with a multirank separable kernel of the nucleon-nucleon interactions. The static approximation and additional relativistic corrections for the trinucleon electromagnetic form factors have been calculated for the momentum transfer squared up to 50 fm −2 .

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“…With the intention to study relativistic effects they are calculated by the Rome group in continuation of their work on deuteron electromagnetic observables (see e.g. [55]). Their calculation is a manifestly relativistic calculation in the so called light-front (LF) relativistic Hamiltonian dynamics.…”

Section: Trinucleon Electromagnetic Form Factors and The Light-front mentioning

confidence: 99%

Few-nucleon physics

Leidemann¹

2009

J. Phys.: Conf. Ser.

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Abstract. Recent progress in few-nucleon physics achieved by Italian research groups is described. Results for relativistic effects in elastic three-nucleon form factors (Rome group), hadronic and electromagnetic observables in three-and four-nucleon systems with special emphasis on three-nucleon force effects (Pisa and Trento groups), and spectra of nuclei with more than 4 nucleons (Padua group) are presented. IntroductionThe field of few-nucleon physics constitutes an essential part of nuclear physics. It consists of ab initio calculations of hadronic and electromagnetic observables with a given well-defined Hamiltonian of an A-nucleon system, where exact solutions of the quantum mechanical A-body system are requested for bound and/or scattering states. In particular one can consider boundstate spectra and observables from hadronic reactions like scattering lengths, phase shifts, total and differential cross sections. A polarization of beam, target, and/or final particles leads to many other hadronic polarization observables. In addition reactions with electroweak probes (photons, electrons, neutrinos) without and with polarization degrees of freedom give further information on the nuclear dynamics and electroweak structure of few-nucleon systems. For the latter one has to consider a further important aspect, namely the consistency of the electroweak currents with the nuclear Hamiltonian.Few-nucleon physics has many objectives: development of nuclear force models (nucleonnucleon (NN) and three-nucleon (3N) forces) and check whether even higher many-body forces are necessary, test of nuclear force models via two-and three-nucleon hadronic observables with possible feedback on force model, further test of nuclear dynamics in electromagnetic reactions with two-and three-nucleon systems; the study of the electroweak structure of few-nucleon systems; the investigation of the importance of relativistic effects; the extension of nuclear force models beyond pion threshold; the determination of neutron electroweak properties in twoand three-nucleon electroweak observables; the determination of observables with astrophysical relevance.Here follows a very brief summary on the state of the art for some selected aspects of fewnucleon physics. NN potential models have a long history (see e.g. [1] [5,6,7]. The potentials [2,3,4,5] all lead to a perfect or almost perfect description of various thousands of NN scattering data for energies up to pion threshold, while the chiral potential [6,7] is constructed more in the original spirit of effective field theory where open parameters are fitted to low-energy data only. The history of 3N forces started with

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Trinucleon Electromagnetic Form Factors and the Light-Front Hamiltonian Dynamics

Cited by 5 publications

References 14 publications

Neutron orbital structure from generalized parton distributions of3He

Neutron orbital structure from generalized parton distributions of3He

Trinucleon form factors with relativistic multirankseparable kernels

Few-nucleon physics

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