π+-Electroproduction of hydrogen near threshold at four-momentum transfers of 0.2, 0.4 and 0.6 GeV2

Brauel, P.; Büsser, F.W.; Canzler, T.; Cords, D.; Dix, W.‐R.; Felst, R.; Grindhammer, G.; Kollmann, W.-D.; Krehbiel, H.; Meyer, J.; Weber, G.

doi:10.1016/0370-2693(73)90062-2

Cited by 48 publications

(29 citation statements)

References 5 publications

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“…In Fig. 5 we plot the axial form factor of a nucleon with the boost correction (31). The empirical values for the axial form factor have a dipole-like behavior.…”

Section: Numerical Resultsmentioning

confidence: 99%

Direct Observation of Deoxyribonucleic Acid Anchored between an Aluminum Electrode and an Atomic Force Microscope Cantilever

Ueda¹,

Baba²,

Iwasaki

et al. 1999

Jpn. J. Appl. Phys.

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The explicit expressions for the electric, magnetic, axial and induced pseudoscalar form factors of the nucleons are derived in the ab initio quantized Skyrme model. The canonical quantization procedure ensures the existence of stable soliton solutions with good quantum numbers. The form factors are derived for representations of arbitrary dimension of the SU(2) group. After ¢xing the two parameters of the model, f p and e, by the empirical mass and electric mean square radius of the proton, the calculated electric and magnetic form factors are fairly close to the empirical ones, whereas the the axial and induced pseudoscalar form factors fall o¡ too slowly with momentum transfer.

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“…In Fig. 5 we plot the axial form factor of a nucleon with the boost correction (31). The empirical values for the axial form factor have a dipole-like behavior.…”

Section: Numerical Resultsmentioning

confidence: 99%

Direct Observation of Deoxyribonucleic Acid Anchored between an Aluminum Electrode and an Atomic Force Microscope Cantilever

Ueda¹,

Baba²,

Iwasaki

et al. 1999

Jpn. J. Appl. Phys.

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“…Although such type of analysis is more complicated, but there are more experimental data of this class. In the present work, we use a wide range of charged pion electroproduction data [45,[69][70][71][72][73][74][75][76][77][78]. In such analyses, the Nambu, Luri and Shrauner low-energy (NLS) theorem [79,80] is firstly used for the electric dipole amplitude E (−) 0+ at production threshold.…”

Section: Experimental Datamentioning

confidence: 99%

Nucleon axial form factor from generalized parton distributions

2019

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It is well established that the nucleon form factors can be related to Generalized Parton Distributions (GPDs) through sum-rules. On the other hand, GPDs can be expressed in terms of Parton Distribution Functions (PDFs) according to Diehl's model. In this work, we use this model to calculate polarized GPDs for quarks ( Hq) using the available polarized PDFs obtained from the experimental data, and then study the axial form factor of nucleon. We determine parameters of the model using standard χ 2 analysis of experimental data. It is shown that some parameters should be readjusted, as compared to some previously reported values, to obtain better consistency between the theoretical predictions and experimental data. Moreover, we study in details the uncertainty of nucleon axial form factor due to various sources.

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“…As a comparison, a fit assuming the dipole form factor, and the same Q 2 max yields m dipole A = 1.29 ± 0.05 GeV. 3 It is not our purpose in this paper to investigate in detail the additional uncertainty that should be assigned to (21) due to nuclear effects. We note that a fit of the MiniBooNE data to the RFG model with free parameter ǫ b yields the value, without an assumption on the value of m A , (for Q 2 max = 1.0 GeV 2 , k max = 7)…”

Section: Parameter Valuementioning

confidence: 99%

Model-independent determination of the axial mass parameter in quasielastic neutrino-nucleon scattering

2011

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Quasielastic neutrino-nucleon scattering is a basic signal process for neutrino oscillation studies. At accelerator energies, the corresponding cross section is subject to significant uncertainty due to the poorly constrained axial-vector form factor of the nucleon. A model-independent description of the axial-vector form factor is presented. Data from the MiniBooNE experiment for quasielastic neutrino scattering on 12 C are analyzed under the assumption of a definite nuclear model. The value of the axial mass parameter, m A = 0.85 +0.22 −0.07 ± 0.09 GeV, is found to differ significantly from extractions based on traditional form factor models. Implications for future neutrino scattering and pion electroproduction measurements are discussed.

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π+-Electroproduction of hydrogen near threshold at four-momentum transfers of 0.2, 0.4 and 0.6 GeV2

Cited by 48 publications

References 5 publications

Direct Observation of Deoxyribonucleic Acid Anchored between an Aluminum Electrode and an Atomic Force Microscope Cantilever

Direct Observation of Deoxyribonucleic Acid Anchored between an Aluminum Electrode and an Atomic Force Microscope Cantilever

Nucleon axial form factor from generalized parton distributions

Model-independent determination of the axial mass parameter in quasielastic neutrino-nucleon scattering

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