Pion Valence Structure at Intermediate x in the Residual Field Model Article Swipe

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Joseph Maerovitz , A.D. Sosa , Christopher Leon , Misak Sargsian ·

YOU? · · 2025 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2506.15995

We calculate the valence parton distribution function of the pion, for the range of $0.1 \le x \le 0.6$, based on the soft dynamics of the partons within the valence-residual field model. Within this model we assume that the soft partonic structure of the pion is defined by the valence current $q\bar q$ cluster embedded in the residual field of the pion. The parton distribution function is calculated using phenomenological wave functions for the $q\bar q$ cluster and residual field. Our result indicate that the peak position of x weighted valence parton distribution depends on the mass of the residual system and the parameters of the system are obtained by fitting the height and the peak position of this distribution to extracted PDFs. This comparison reveals that unlike for the case of nucleon PDF, very little residual mass is needed to describe existing pion PDFs at intermediate x.

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Type: preprint
Language: en
Landing Page: http://arxiv.org/abs/2506.15995
PDF: https://arxiv.org/pdf/2506.15995
OA Status: green
OpenAlex ID: https://openalex.org/W4417095404

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DOI: https://doi.org/10.48550/arxiv.2506.15995

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Title: Pion Valence Structure at Intermediate x in the Residual Field Model

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Type: preprint

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Language: en

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Publication year: 2025

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Publication date: 2025-06-19

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Authors: Joseph Maerovitz, A.D. Sosa, Christopher Leon, Misak Sargsian

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Landing page: https://arxiv.org/abs/2506.15995

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