STI Publications - View Publication Form #16377

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Publication Information
Title Distillation at High-Momentum
Abstract Extraction of hadronic observables at finite-momenta from Lattice QCD (LQCD) is constrained by the well-known signal-to-noise problems afflicting all such LQCD calculations. Traditional quark smearing algorithms are commonly used tools to improve the statistical quality of hadronic $n$-point functions, provided operator momenta are small. The momentum smearing algorithm of Bali et al. extends the range of momenta that are cleanly accessible, and has facilitated countless novel lattice calculations. Momentum smearing has, however, not been explicitly demonstrated within the framework of distillation. In this work we extend the momentum-smearing idea, by exploring a few modifications to the distillation framework. Together with enhanced time slice sampling and expanded operator bases engendered by distillation, we find ground-state nucleon energies can be extracted reliably for $\left|\vec{p}\right|\lesssim3\text{ GeV}$ and matrix elements featuring a large momentum dependence can be res
Author(s) Colin Egerer, Robert Edwards, Konstantinos Orginos, David Richards
Publication Date February 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)
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-THY-20-3250 OSTI Number: 1764504
LANL Number: arXiv:2009.10691 Other Number: DOE/OR/23177-5055
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) 034502
Attachments/Datasets/DOI Link
Document(s)
momsmear-distillation.pdf (STI Document)
PhysRevD.103.034502.pdf (Accepted Manuscript)
DOI Link
Dataset(s) (none)
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