Quark-hadron duality in nucleon structure functions

Melnitchouk, W.; Khemchandani, Kanchan; Nagahiro, Hideko; Nawa, Kanabu

doi:10.1063/1.3647422

AIP Conference Proceedings

2011

DOI: 10.1063/1.3647422

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Quark-hadron duality in nucleon structure functions

W. Melnitchouk¹,

Kanchan Khemchandani²,

Hideko Nagahiro³

et al.

Abstract: We review progress in the study of quark-hadron duality in nucleon structure functions. New developments include insights into local duality obtained using truncated moments of structure functions, which allow duality-violating higher-twist contributions to be identified in individual resonance regions. Studies of pion electroproduction have also showed the first glimpses of duality in semi-inclusive cross sections, which if confirmed would greatly expand the scope of constraining the flavor and spin dependenc… Show more

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2021

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Neutrino(antineutrino)–nucleus interactions in the shallow- and deep-inelastic scattering regions

Athar

Morfín

2021

J. Phys. G: Nucl. Part. Phys.

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In ν/ν-Nucleon/Nucleus interactions Shallow Inelastic Scattering (SIS) is technically defined in terms of the four-momentum transfer to the hadronic system as non-resonant meson production with Q 2 1 GeV 2. This non-resonant meson production intermixes with resonant meson production in a regime of similar effective hadronic mass W of the interaction. As Q 2 grows and surpasses this ≈ 1 GeV 2 limit, non-resonant interactions begin to take place with quarks within the nucleon indicating the start of Deep Inelastic Scattering (DIS). To essentially separate this resonant plus non-resonant meson production from DIS quark-fragmented meson production, a cut of 2 GeV in W of the interactions is generally introduced. However, since experimentally mesons from resonance decay cannot be separated from non-resonant produced mesons, SIS for all practical purposes in this review has been defined as inclusive meson production that includes non-resonant plus resonant meson production and the interference between them. Experimentally then for W 2 GeV inclusive meson production with W (M N + M π) and all Q 2 is here defined as SIS, while for W 2 GeV, the kinematic region with Q 2 1 GeV 2 is defined as DIS. The so defined SIS and DIS regions have received varying degrees of attention from the community. While the theoretical / phenomenological study of ν-nucleon and ν-nucleus DIS scattering is advanced, such studies of a large portion of the SIS region, particularly the SIS to DIS transition region, have hardly begun. Experimentally, the SIS and the DIS regions for ν-nucleon scattering have minimal results and only in the experimental study of the ν-nucleus DIS region are there significant results for some nuclei. Since current and future neutrino oscillation experiments have contributions from both higher W SIS and DIS kinematic regions and these regions are in need of both considerable theoretical and experimental study, this review will concentrate on these SIS to DIS transition and DIS kinematic regions surveying our knowledge and the current challenges.

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Neutrino(antineutrino)–nucleus interactions in the shallow- and deep-inelastic scattering regions

Athar

Morfín

2021

J. Phys. G: Nucl. Part. Phys.

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show abstract

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Quark-hadron duality in nucleon structure functions

Cited by 1 publication

References 14 publications

Neutrino(antineutrino)–nucleus interactions in the shallow- and deep-inelastic scattering regions

Neutrino(antineutrino)–nucleus interactions in the shallow- and deep-inelastic scattering regions

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