3-10 August 2016
Chicago IL USA
US/Central timezone
There is a live webcast for this event.

Lattice QCD study of excited hadron resonances

6 Aug 2016, 18:00
2h
Riverwalk A/B ()

Riverwalk A/B

Poster Strong Interactions and Hadron Physics Poster Session

Speakers

Andrew Hanlon (University of Pittsburgh) Jacob Fallica (Carnegie Mellon University)

Description

The spectrum of excited hadron resonances in QCD is studied using Monte Carlo path integration techniques formulated on a large $32^3\times 256$ anisotropic space-time lattice. A large number of probe interpolating operators are used, and calculation of temporal correlations is accomplished using a stochastic method of treating the low-lying modes of quark propagation that exploits Laplacian Heaviside quark-field smearing. An effective Hamiltonian is used to interpret the finite-volume energies and determine the masses and widths of the resonances. Changes to the spectrum upon introducing a variety of tetraquark operators is investigated.

Primary author

Colin Morningstar (Carnegie Mellon University)

Co-authors

Andrew Hanlon (University of Pittsburgh) Ben Hoerz (Trinity College, Dublin, Ireland) Bijit Singha (Carnegie Mellon University) Brendan Fahy (KEK, Japan) Chik Him Wong (University of Wuppertal) Jacob Fallica (Carnegie Mellon University) John Bulava (Trinity College, Dublin, Ireland) Keisuke Juge (University of the Pacific, Stockton, CA)

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