String breaking with 2+1 dynamical fermions using the stochastic LapH-method

Vanessa Koch, John Bulava, Ben Hörz, Francesco Knechtli, Graham Moir, Colin Morningstar, Mike Peardon

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Abstrakt

The static potential V(r) between a static quark and a static antiquark separated by a distance r is defined as the energy of the ground state of the system. As a consequence of confinement, the energy between the quark-antiquark pair is contained inside a color flux tube, which will break due to pair creation as soon as the energy is high enough. String breaking is manifested as a quantum-mechanical mixing phenomenon between different states containing two infinitely heavy quarks. We investigate this phenomenon with Nf = 2 + 1 flavors of dynamical fermions in the stochastic LapH framework, using an ensemble of gauge configurations generated through the CLS effort. We observe the effect of the third sea-quark flavor, which results in a second mixing-phenomenon.

OriginalsprogEngelsk
Artikelnummer053
TidsskriftProceedings of Science
Vol/bind334
Antal sider7
ISSN1824-8039
DOI
StatusUdgivet - 2018
Begivenhed36th Annual International Symposium on Lattice Field Theory, LATTICE 2018 - East Lansing, USA
Varighed: 22. jul. 201828. jul. 2018

Konference

Konference36th Annual International Symposium on Lattice Field Theory, LATTICE 2018
LandUSA
ByEast Lansing
Periode22/07/201828/07/2018

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