Hanlon, Andrew D.
(2018)
The ρ Meson Spectrum and Kπ Scattering with Partial Wave Mixing in Lattice QCD.
Doctoral Dissertation, University of Pittsburgh.
(Unpublished)
Abstract
The finite-volume QCD spectrum in the I = 1, S = 0, parity-odd, G-parity-even channels for zero total momentum is studied using lattice QCD, and the K-matrix for Kπ scattering is investigated to determine the mass and decay width of the K*(892) from first principles. The recently developed stochastic LapH method has proven to be a valuable tool in lattice QCD calculations when all-to-all quark propagators are needed, as is the case for isoscalar mesons and two-hadron operators. This method is especially important for large volumes where other methods do not scale well. These calculations were done with 412 gauge configurations using clover-improved Wilson fermions on a large anisotropic 32³ × 256 lattice with a pion mass near 240 MeV. The stationary states determined to be single-particle dominated are compared with the experimental resonances and are found to be in reasonable agreement. Additionally, the initial development of tetraquark operators is described.
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Item Type: |
University of Pittsburgh ETD
|
Status: |
Unpublished |
Creators/Authors: |
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ETD Committee: |
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Date: |
31 January 2018 |
Date Type: |
Publication |
Defense Date: |
28 September 2017 |
Approval Date: |
31 January 2018 |
Submission Date: |
4 October 2017 |
Access Restriction: |
No restriction; Release the ETD for access worldwide immediately. |
Number of Pages: |
238 |
Institution: |
University of Pittsburgh |
Schools and Programs: |
Dietrich School of Arts and Sciences > Physics |
Degree: |
PhD - Doctor of Philosophy |
Thesis Type: |
Doctoral Dissertation |
Refereed: |
Yes |
Uncontrolled Keywords: |
lattice, qcd, hadrons, spectroscopy, particle physics |
Date Deposited: |
31 Jan 2018 15:59 |
Last Modified: |
31 Jan 2018 15:59 |
URI: |
http://d-scholarship.pitt.edu/id/eprint/33243 |
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