Empirical Determination of the Pion Mass Distribution

Xu, Y-Z.; RayaID, K.; Cui, Zhu-Fang; Roberts, C. D.; Rodríguez‐Quintero, J.

doi:10.1088/0256-307x/40/4/041201

Cited by 7 publications

(5 citation statements)

References 89 publications

(200 reference statements)

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“…Instead, the peak is shifted to 2 (∆ 2 ) -Ref. [50]. Comparison curves: CSM prediction for θ π 2 (∆ 2 ) in Refs.…”

Section: Wave Functions Of Nambu-goldstone Bosonsmentioning

confidence: 93%

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Revealing the Origin of Mass through Studies of Hadron Spectra and Structure

Roberts

2024

EPJ Web Conf.

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The Higgs boson is responsible for roughly 1% of the visible mass in the Universe. Obviously, therefore, Nature has another, very effective way of generating mass. In working toward identifying the mechanism, contempo rary strong interaction theory has arrived at a body of basic predictions, viz. the emergence of a nonzero gluon mass-scale, a process-independent effective charge, and dressed-quarks with constituent-like masses. These three phenom ena – the pillars of emergent hadron mass (EHM) – explain the origin of the vast bulk of visible mass in the Universe. Their expressions in hadron observables are manifold. This contribution highlights a few; namely, some of the roles of EHM in building the meson spectrum, producing the leading-twist pion distribution amplitude, and moulding hadron charge and mass distributions.

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“…Instead, the peak is shifted to 2 (∆ 2 ) -Ref. [50]. Comparison curves: CSM prediction for θ π 2 (∆ 2 ) in Refs.…”

Section: Wave Functions Of Nambu-goldstone Bosonsmentioning

confidence: 93%

“…Exploiting the connections between GPDs, elastic form factors, and DFs, Ref. [50] reconstructed the pion GPD from relevant available data [58][59][60][61][62][63][64][65]; and, therefrom, the pion mass distribution form factor. The result is drawn in Fig.…”

Section: Empirical Determination Of the Pion Mass Distributionmentioning

confidence: 99%

Revealing the Origin of Mass through Studies of Hadron Spectra and Structure

Roberts

2024

EPJ Web Conf.

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“…We consider the squared momentum transfer t of the differential cross section to be in the range GeV . A meticulous global fitting of the photoproduction experimental data is employed [55] to extract the parameters , , and in the quark GFFs (Eqs. (15)).…”

Section: Gffs and Vector Meson Photopro-duction J/ψmentioning

confidence: 99%

“…To check the fitting accuracy of the differential cross sections, we compare these integral values via Eq. ( 18) with the total cross section experimental data [55], as depicted in Fig. 3.…”

Section: Gffs and Vector Meson Photopro-duction J/ψmentioning

confidence: 99%

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Gravitational form factors of the proton from near-threshold vector meson photoproduction*

Wang 王,

Zeng 曾,

Zhang 张

2024

Chinese Phys. C

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We embark on a systematical analysis of the quark and gluon gravitational form factors (GFFs) of the proton, by connecting energy-momentum tensor (EMT) and the near-threshold vector meson photoproduction (NTVMP). Concretely, the quark contributions of GFFs are determined by global fitting the cross section of the lightest vector meson ρ0 photoproduction. Combined with the gluon GFFs achieved from heavy quarko nium J/ψ photoproduction data, the complete GFFs are obtained and compared with the experimental results and Lattice QCD determinations. In addition, we use the Resonances Via Pad´e (RVP) method based on the Schlessinger Point Method (SPM) to obtain a model-independent quark D-term distribution by direct analytical continuation of Deep Virtual Compton Scattering (DVCS) experimental data. If errors are considered, the results obtained by RVP are basically consistent with those obtained by NTVMP. Moreover, the comprehensive information on GFFs helps us to uncover the mass distribution and mechanical properties inside the proton. This work is not only an important basis for delving the proton enigmatic properties, but also have significance theoretical guiding for future JLab and EICs experimental measurements. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Article funded by SCOAP3 and published under licence by Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Science and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd.

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Hadron Structure Using Continuum Schwinger Function Methods

Roberts

2023

Few-Body Syst

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Empirical Determination of the Pion Mass Distribution

Cited by 7 publications

References 89 publications

Revealing the Origin of Mass through Studies of Hadron Spectra and Structure

Revealing the Origin of Mass through Studies of Hadron Spectra and Structure

Gravitational form factors of the proton from near-threshold vector meson photoproduction*

Hadron Structure Using Continuum Schwinger Function Methods

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