Neutrino-nucleus cross section in the impulse approximation regime

Benhar, Omar; Farina, Nicola

doi:10.1016/j.nuclphysbps.2004.11.233

Cited by 10 publications

(5 citation statements)

References 8 publications

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“…(20) can be solved exactly, using stochastic methods, for nuclei with mass number A 10. The energies of the ground and low-lying excited states are in excellent agreement with the experimental data [26].…”

Section: The Nuclear Spectral Functionmentioning

confidence: 99%

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Electron- and neutrino-nucleus scattering in the impulse approximation regime

et al. 2005

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A quantitative understanding of the weak nuclear response is a prerequisite for the analyses of neutrino experiments such as K2K and MiniBOONE, which measure energy and angle of the muons produced in neutrino-nucleus interactions in the energy range 0:5-3 GeV and reconstruct the incident neutrino energy to determine neutrino oscillations. In this paper we discuss theoretical calculations of electron-and neutrino-nucleus scattering, carried out within the impulse approximation scheme using realistic nuclear spectral functions. Comparison between electron scattering data and the calculated inclusive cross section of oxygen, at beam energies ranging between 700 and 1200 MeV, show that the Fermi gas model, widely used in the analysis of neutrino oscillation experiments, fails to provide a satisfactory description of the measured cross sections, and inclusion of nuclear dynamics is needed.

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Section: The Nuclear Spectral Functionmentioning

confidence: 99%

“…[14], extensively used to analyze electron scattering data at beam energy up to few GeV [14,15,16]. Preliminary versions of the materials in this paper have appeared in the Proceedings of NuInt04 [9,17,18].…”

Section: Introductionmentioning

confidence: 99%

Electron- and neutrino-nucleus scattering in the impulse approximation regime

et al. 2005

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“…[27][28][29][30][31]) and charged-current (e.g., Refs. [23,24,29,30,[32][33][34][35][36][37]) neutrinonucleus scattering have stimulated detailed investigations.…”

Section: Introductionmentioning

confidence: 99%

“…The role of Pauli blocking and FSI in charged-current neutrino induced reactions is analyzed in Refs. [35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Superscaling analysis of inclusive electron scattering and its extension to charge-changing neutrino-nucleus cross sections beyond the relativistic Fermi gas approach

et al. 2006

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Superscaling analyses of inclusive electron scattering from nuclei are extended from the quasielastic processes to the delta excitation region. The calculations of (e, e ) cross sections for the target nucleus 12 C at various incident electron energies are performed using scaling functions f (ψ ) obtained in approaches going beyond the mean-field approximation, such as the coherent density fluctuation model (CDFM) and the one based on the light-front dynamics method. The results are compared with those obtained using the relativistic Fermi gas (RFG) model and the extended RFG model (ERFG). Our method utilizes in an equivalent way both basic nuclear quantities, density and momentum distributions, showing their role for the scaling and superscaling phenomena. The approach is extended to consider scaling function for medium and heavy nuclei with Z = N for which the proton and neutron densities are not similar. The asymmetry of the CDFM quasielastic scaling function is introduced, simulating in a phenomenological way the effects that violate the symmetry for ψ 0, including the role of the final-state interaction. The superscaling properties of the electron scattering are used to predict charge-changing neutrino-nucleus cross sections at energies from 1 to 2 GeV. A comparison with the results of the ERFG model is made. The analyses make it possible to gain information about the nucleon correlation effects on both local density and nucleon momentum distributions.

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“…Ignoring final-state interactions of the struck particle with the rest of the nucleus yields final states that are products of free single-particle states with the momenta of the original nucleon plus the transferred momentum, and of the final states of the remaining interacting nucleons. Ignoring final-state-interaction effects in the final system altogether or including the removal energy of the struck nucleon results in the plane-wave impulse approximation (PWIA) [2,3] or the spectral function approach [4][5][6][7]. The latter is an improvement as it contains additional information on the energy to remove a nucleon from the nucleus.…”

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confidence: 99%

Scaling in the short-time approximation

Pastore,

Carlson,

Gandolfi

et al. 2021

Preprint

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We briefly review the concept of scaling and how it occurs in quasielastic electron and neutrino scattering from nuclei, and then the particular approach to scaling in the short-time approximation. We show that, while two-nucleon currents do significantly enhance the transverse electromagnetic response, they do not spoil scaling, but in fact enhance it. We provide scaling results obtained in the short-time approximation that verify this claim. The enhanced scaling is not "accidental"-as claimed in Ref.[1]-but rather reflects the dominant role played by pion exchange interactions and currents in the quasielastic regime.

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Neutrino-nucleus cross section in the impulse approximation regime

Cited by 10 publications

References 8 publications

Electron- and neutrino-nucleus scattering in the impulse approximation regime

Electron- and neutrino-nucleus scattering in the impulse approximation regime

Superscaling analysis of inclusive electron scattering and its extension to charge-changing neutrino-nucleus cross sections beyond the relativistic Fermi gas approach

Scaling in the short-time approximation

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