Backward hadron production in neutrino-nucleus interactions

Benhar, Omar; Fantoni, S.; Lykasov, G. I.

doi:10.1007/s100500050411

Cited by 12 publications

(27 citation statements)

References 10 publications

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“…Fermi gas model [9][10][11]), or the more complicated form of a two dimensional (2D) distribution in both momentum and removal energy (e.g. Benhar-Fantoni spectral function [12,13]). Figure 2 shows the nucleon momentum distributions in a 12 C nucleus for some of the spectral functions that are currently being used.…”

Section: Spectral Functionsmentioning

confidence: 99%

“…Benhar-Fantoni spectral function [12,13]). Figure 2 shows the nucleon momentum distributions in a 12 C nucleus for some of the spectral functions that are currently being used. The solid green line is the nucleon momentum distribution for the Fermi gas [9][10][11] model (labeled "Global Fermi" gas) which is currently implemented in all neutrino event generators (Eq.…”

Section: Spectral Functionsmentioning

confidence: 99%

“…30 of Appendix B). The solid black line is the projected momentum distribution of the Benhar-Fantoni [12,13] 2D spectral function as implemented in NuWro. The solid red line is the nucleon momentum distribution of the Local-Thomas-Fermi gas (LTF) model [8] which is implemented in NURWO and GiBUU.…”

Section: Spectral Functionsmentioning

confidence: 99%

“…In this communication we present the parameters for a new effective spectral function that reproduces the kinematics of the final state lepton predicted by ψ superscaling. The momentum distribution for this ESF for 12 C is shown as the blue line in Fig. 2. …”

Section: Spectral Functionsmentioning

confidence: 99%

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Effective spectral function for quasielastic scattering on nuclei

2014

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Spectral functions that are used in neutrino event, generators to model quasielastic (QE) scattering from nuclear targets include Fermi gas, Local Thomas Fermi gas (LTF), Bodek-Ritchie Fermi gas with high momentum tail, and the Benhar-Fantoni two dimensional spectral function. We find that the ν dependence of predictions of these spectral functions for the QE differential cross sections (d 2 σ /d Q 2 dν) are in disagreement with the prediction of the ψ superscaling function which is extracted from fits to quasielastic electron scattering data on nuclear targets. It is known that spectral functions do not fully describe quasielastic scattering because they only model the initial state. Final state interactions distort the shape of the differential cross section at the peak and increase the cross section at the tails of the distribution. We show that the kinematic distributions predicted by the ψ superscaling formalism can be well described with a modified effective spectral function (ESF). By construction, models using ESF in combination with the transverse enhancement contribution correctly predict electron QE scattering data.

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Section: Spectral Functionsmentioning

confidence: 99%

Section: Spectral Functionsmentioning

confidence: 99%

Section: Spectral Functionsmentioning

confidence: 99%

Section: Spectral Functionsmentioning

confidence: 99%

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Effective spectral function for quasielastic scattering on nuclei

2014

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“…An alternative approach to obtain f A (y) at larger y, based on the calculation of the overlap of the relativistic invariant phase-space available to quarks belonging to strongly correlated nucleons, has been proposed in Refs. [15,17].…”

Section: Theoretical Frameworkmentioning

confidence: 99%

Hadron multiplicity in semi-inclusive lepton-nucleon and lepton-nucleus scattering

Benhar¹,

Fantoni²,

Lykasov³

et al. 2004

Perspectives in Hadronic Physics

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Abstract. We discuss multi-hadron production in both inelastic neutrino-nucleon interactions in the current fragmentation region and neutrino-nucleus collisions in the target fragmentation region. Our analysis, carried out within the framework of the quark-gluon string model, is mainly focused on the difference between these two processes. We show that the Q 2 dependence of hadron multiplicity in the current and target fragmentation regions is indeed completely different. The study of inelastic ν − A scattering in the target fragmentation region also provides new information on nuclear structure at small N − N distances. The results of the proposed approach are in satisfactory agreement with the data recently obtained at CERN by the NOMAD Collaboration.PACS. 13.60.Hb Total and inclusive cross sections -13.15.+g Neutrino interactions

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Effective Spectral Function for Quasielastic Scattering on Nuclei

Bodek

Christy

Coopersmith

2016

Nuclear and Particle Physics Proceedings

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Spectral functions do not fully describe quasielastic electron and neutrino scattering from nuclei because they only model the initial state. Final state interactions distort the shape of the differential cross section at the peak and increase the cross section at the tails of the distribution. We show that the kinematic distributions predicted by the ψ superscaling formalism can be well described with a modified effective spectral function (ESF). By construction, models using ESF in combination with the transverse enhancement contribution correctly predict electron QE scattering data. Our values for the binding energy parameter ∆ are smaller than extracted within the Fermi gas model from pre 1971 data by Moniz[8], probably because these early cross sections were not corrected for coulomb effects.

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Backward hadron production in neutrino-nucleus interactions

Cited by 12 publications

References 10 publications

Effective spectral function for quasielastic scattering on nuclei

Effective spectral function for quasielastic scattering on nuclei

Hadron multiplicity in semi-inclusive lepton-nucleon and lepton-nucleus scattering

Effective Spectral Function for Quasielastic Scattering on Nuclei

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