STI Publications - View Publication Form #16471

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Publication Information
Title Towards studying the structural differences between the pion and its radial excitation
Abstract We present an exploratory lattice QCD investigation of the differences between the valence quark structure of pion and its radial excitation $\pi(1300)$ in a fixed finite volume using the leading-twist perturbative matching framework. We present evidences that the first pion excitation in our lattice computation is a single particle state that is likely to be the finite volume realization of $\pi(1300)$. An analysis with reasonable priors result in better estimates of the excited state PDF and the moments, wherein we find evidence that the radial excitation of pion correlates with an almost two-fold increase in the momentum fraction of valence quarks. This proof-of-principle work establishes the viability of future lattice computations incorporating larger operator basis that can resolve the structural changes accompanying hadronic excitation.
Author(s) Nikhil Sridharan Karthik, Xiang Gao, Swagato Mukherjee, Peter Petreczky, Sergey Syritsyn, Y. Zhao
Publication Date May 2021
Document Type Journal Article
Primary Institution The College of William and Mary, 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
JLAB Number: JLAB-THY-21-3311 OSTI Number: 1784537
LANL Number: arXiv:2101.11632 Other Number: DOE/OR/23177-5120
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 103
Issue
Page(s) 094510
Attachments/Datasets/DOI Link
Document(s)
paper54.pdf (STI Document)
PhysRevD.103.094510.pdf (Accepted Manuscript)
DOI Link
Dataset(s) (none)
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