Single-pion production in electron-proton interactions

被引：5

作者：

Kabirnezhad, M. ^{[1
,2
,3
]}

机构：

[1] York Univ, Dept Phys & Astron, 4700 Keele St, Toronto, ON M3J 1P3, Canada

[2] Univ Oxford, Denys Wilkinson Bldg, Oxford OX1 3RH, England

[3] Imperial Coll London, Dept Phys, London SW7 2BZ, England

来源：

PHYSICAL REVIEW C | 2023年 / 107卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1103/PhysRevC.107.025502

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

This paper presents an extension of the MK single-pion production model [Kabirnezhad, Phys. Rev. D 97, 013002 (2018); 102, 053009 (2020)] to high hadron invariant mass (W ) and high momentum transfer (Q2) to conform to the predictions of perturbative QCD due to the quark-hadron duality evidence. New form factors for several resonances and nonresonant background in the electron-nucleon cross sections are determined taking into account the experimental data and improved evaluation techniques. Fits to electron-proton scattering data are used to constrain free parameters and to assign the related uncertainties of the model. The results from this work can be used to determine the vector current in the corresponding neutrino-nucleon cross sections, which is an important input for event generators in long-baseline neutrino-oscillation measurements.

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页数：14

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