STI Publications - View Publication Form #16508
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Publication Information
| Title | Pion form factor and charge radius from Lattice QCD at physical point | ||||
| Abstract | We present our results on the electromagnetic form factor of pion over a wide range of $Q^2$ using lattice QCD simulations with Wilson-clover valence quarks and HISQ sea quarks. We study the form factor at the physical point with a lattice spacing $a = 0.076$ fm. To study the lattice spacing and quark mass effects, we also present results for 300 MeV pion at two different lattice spacings $a = 0.04$ and 0.06 fm. The lattice calculations at the physical quark mass appear to agree with the experimental results. Through fits to the form factor, we estimate the charge radius of pion for physical pion mass to be $\langle r_\pi^2 \rangle = 0.41(2)$ fm$^2$ | ||||
| Author(s) | Xiang Gao, Nikhil Sridharan Karthik, Swagato Mukherjee, Peter Petreczky, Sergey Syritsyn, Y. Zhao | ||||
| Publication Date | December 2021 | ||||
| Document Type | Journal Article | ||||
| Primary Institution | Colonial Williamsburg Foundation, Williamsburg, VA | ||||
| Affiliation | Theory & Comp Physics / THEORY CENTER / THEORY CENTER | ||||
| Funding Source | Nuclear Physics (NP), DE-FG02-04ER41302 | ||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Physical Review D |
| Refereed | Yes |
| Volume | 104 |
| Issue | |
| Page(s) | 114515 |
Attachments/Datasets/DOI Link
| Document(s) |
paper55.pdf
(STI Document)
PhysRevD.104.114515.pdf
(Accepted Manuscript)
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| DOI Link | |
| Dataset(s) | (none) |
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