Multi-hadron spectroscopy in a large physical volume

John Bulava, Ben Hörz, Colin Morningstar

Research output: Contribution to journalConference articleResearchpeer-review

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Abstract

We demonstrate the effcacy of the stochastic LapH method to treat all-toall quark propagation on a Nf = 2 + 1 CLS ensemble with large linear spatial extent L = 5:5 fm, allowing us to obtain the benchmark elastic isovector p-wave pion-pion scattering amplitude to good precision already on a relatively small number of gauge configurations. These results hold promise for multi-hadron spectroscopy at close-to-physical pion mass with exponential finite-volume effects under control.

Original languageEnglish
Article number05026
JournalEPJ Web of Conferences
Volume175
Number of pages8
ISSN2101-6275
DOIs
Publication statusPublished - 26. Mar 2018
Event35th International Symposium on Lattice Field Theory, Lattice 2017 - Granada, Spain
Duration: 18. Jun 201724. Jun 2017

Conference

Conference35th International Symposium on Lattice Field Theory, Lattice 2017
CountrySpain
CityGranada
Period18/06/201724/06/2017
SponsorConsejo Superior de Investigaciones Cient�ficas, et al., Institute of Cosmos Sciences (ICCUB), Autonomous University of Madrid, University of Granada, University of Valencia

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pions
spectroscopy
scattering amplitude
quarks
propagation
configurations

Cite this

Bulava, John ; Hörz, Ben ; Morningstar, Colin. / Multi-hadron spectroscopy in a large physical volume. In: EPJ Web of Conferences. 2018 ; Vol. 175.
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Multi-hadron spectroscopy in a large physical volume. / Bulava, John; Hörz, Ben; Morningstar, Colin.

In: EPJ Web of Conferences, Vol. 175, 05026, 26.03.2018.

Research output: Contribution to journalConference articleResearchpeer-review

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AU - Bulava, John

AU - Hörz, Ben

AU - Morningstar, Colin

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N2 - We demonstrate the effcacy of the stochastic LapH method to treat all-toall quark propagation on a Nf = 2 + 1 CLS ensemble with large linear spatial extent L = 5:5 fm, allowing us to obtain the benchmark elastic isovector p-wave pion-pion scattering amplitude to good precision already on a relatively small number of gauge configurations. These results hold promise for multi-hadron spectroscopy at close-to-physical pion mass with exponential finite-volume effects under control.

AB - We demonstrate the effcacy of the stochastic LapH method to treat all-toall quark propagation on a Nf = 2 + 1 CLS ensemble with large linear spatial extent L = 5:5 fm, allowing us to obtain the benchmark elastic isovector p-wave pion-pion scattering amplitude to good precision already on a relatively small number of gauge configurations. These results hold promise for multi-hadron spectroscopy at close-to-physical pion mass with exponential finite-volume effects under control.

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DO - 10.1051/epjconf/201817505026

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