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On the definition of the nucleon axial charge density.

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Title: On the definition of the nucleon axial charge density.
Authors: Panteleeva, J. Yu.1 (AUTHOR) juliia.panteleeva@rub.de, Epelbaum, E.1 (AUTHOR), Gegelia, J.1,2 (AUTHOR), Meißner, U.-G.2,3,4,5 (AUTHOR)
Source: Physics Letters B. Mar2026, Vol. 874, pN.PAG-N.PAG. 1p.
Subjects: Wave packets
Abstract: We work out the spatial density distributions corresponding to the axial-vector charge density operator for spin-1/2 systems using states described by sharply localized wave packets. The static approximation, leading to the frequently assumed Breit-frame distributions, is also considered. We discuss the interpretation of the resulting spatial densities in terms of the axial charge density. [ABSTRACT FROM AUTHOR]
Copyright of Physics Letters B is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 192150028
AccessLevel: 6
PubType: Academic Journal
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  Data: On the definition of the nucleon axial charge density.
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  Data: We work out the spatial density distributions corresponding to the axial-vector charge density operator for spin-1/2 systems using states described by sharply localized wave packets. The static approximation, leading to the frequently assumed Breit-frame distributions, is also considered. We discuss the interpretation of the resulting spatial densities in terms of the axial charge density. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Group: Ab
  Data: <i>Copyright of Physics Letters B is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.physletb.2026.140263
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      – Code: eng
        Text: English
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      – TitleFull: On the definition of the nucleon axial charge density.
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              Text: Mar2026
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              Y: 2026
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