Mass dependence of pseudoscalar meson elastic form factors

Chen, Muyang; Ding, Minghui; Chang, Lei; Roberts, Craig D.

doi:10.1103/PhysRevD.98.091505

Title: Mass dependence of pseudoscalar meson elastic form factors

Journal Article · 29 November 2018 · Physical Review D

DOI: https://doi.org/10.1103/PhysRevD.98.091505 · OSTI ID:1489495

Chen, Muyang ^[1]; Ding, Minghui ^[2]; Chang, Lei ^[1]; Roberts, Craig D. ^[3]

Nankai Univ., Tianjin (China). School of Physics
Nankai Univ., Tianjin (China). School of Physics; Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division
Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division

A continuum approach to quark-antiquark bound-states is used to determine the electromagnetic form factors of pion-like mesons with masses m_0-/GeV = 0.14, 0.47, 0.69, 0.83 on a spacelike domain that extends to Q² ≲ 10 GeV². The results enable direct comparisons with contemporary lattice-QCD calculations of heavy-pion form factors at large values of momentum transfer and aid in understanding them. Finally, they also reveal, inter alia, that the form factor of the physical pion provides the best opportunity for verification of the factorised hard-scattering formula relevant to this class of exclusive processes and that this capacity diminishes steadily as the meson mass becomes heavier.

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Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)

Grant/Contract Number:: AC02-06CH11357

OSTI ID:: 1489495

Journal Information:: Physical Review D, Journal Name: Physical Review D Journal Issue: 9 Vol. 98; ISSN PRVDAQ; ISSN 2470-0010

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Pion and Kaon Structure at the Electron-Ion Collider Aguilar, Arlene C.; Ahmed, Zafir; Aidala, Christine arXiv https://doi.org/10.48550/arxiv.1907.08218	text	January 2019
Elastic electromagnetic form factors of vector mesons Xu, Yin-Zhen; Binosi, Daniele; Cui, Zhu-Fang arXiv https://doi.org/10.48550/arxiv.1911.05199	text	January 2019
On the effect of resonances in the quark-photon vertex Miramontes, Angel; Sanchis-Alepuz, Helios Zenodo https://doi.org/10.5281/zenodo.3463268	text	January 2019
On the effect of resonances in the quark-photon vertex Miramontes, Angel; Sanchis-Alepuz, Helios Zenodo https://doi.org/10.5281/zenodo.3463269	text	January 2019

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