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arXiv · 2410.13068

Sketching pion and proton mass distributions

Xiaobin Wang·Zanbin Xing·Lei Chang·Minghui Ding·Khépani Raya·Craig D. Roberts
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Abstract

A light-front holographic model is used to illustrate an algebraic scheme for constructing a representation of a hadron's zero-skewness generalised parton distribution (GPD) from its valence-quark distribution function (DF) and electromagnetic form factor, $F_H$, without reference to deeply virtual Compton scattering data. The hadron's mass distribution gravitational form factor, $A_H$, calculated from this GPD is harder than $F_H$; and, for each hadron, the associated mass-density profile is more compact than the analogous charge profile, with each pion near-core density being larger than that of its proton partner. These features are independent of the scheme employed.

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Xiaobin Wang, Zanbin Xing, Lei Chang, Minghui Ding, Khépani Raya, Craig D. Roberts. 2024-10-16. Sketching pion and proton mass distributions. https://arxiv.org/abs/2410.13068

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