Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/74826
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Type: | Journal article |
Title: | Accessing high momentum states in lattice QCD |
Author: | Roberts, D. Kamleh, W. Leinweber, D. Mahbub, M. Menadue, B. |
Citation: | Physical Review D: Particles, Fields, Gravitation and Cosmology, 2012; 86(7):1-7 |
Publisher: | American Physical Soc |
Issue Date: | 2012 |
ISSN: | 1550-7998 1550-2368 |
Statement of Responsibility: | Dale S. Roberts, Waseem Kamleh, Derek B. Leinweber, M. S. Mahbub, and Benjamin J. Menadue |
Abstract: | Two measures are defined to evaluate the coupling strength of smeared interpolating operators to hadronic states at a variety of momenta. Of particular interest is the extent to which strong overlap can be obtained with individual high-momentum states. This is vital to exploring hadronic structure at high-momentum transfers on the lattice and addressing interesting phenomena observed experimentally. We consider a novel idea of altering the shape of the smeared operator to match the Lorentz contraction of the probability distribution of the high-momentum state and show a reduction in the relative error of the two-point function by employing this technique. Our most important finding is that the overlap of the states becomes very sharp in the smearing parameters at high momenta, and fine tuning is required to ensure strong overlap with these states. |
Rights: | © 2012 American Physical Society |
DOI: | 10.1103/PhysRevD.86.074504 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1103/physrevd.86.074504 |
Appears in Collections: | Aurora harvest Physics publications |
Files in This Item:
File | Description | Size | Format | |
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hdl_74826.pdf | Published version | 1.33 MB | Adobe PDF | View/Open |
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