Quarkonium mass splittings with Fermilab heavy quarks and 2+1 flavors of improved staggered sea quarks

T. Burch; C. E. DeTar; L. Levkova; M. Di Pierro; A. X. El-Khadra; Steven Gottlieb; A. S. Kronfeld; P. B. Mackenzie; J. N. Simone

Quarkonium mass splittings with Fermilab heavy quarks and 2+1 flavors of improved staggered sea quarks

T. Burch, C. E. DeTar, L. Levkova, M. Di Pierro, A. X. El-Khadra, Steven Gottlieb, A. S. Kronfeld, P. B. Mackenzie, J. N. Simone

Physics

Research output: Contribution to journal › Conference article › peer-review

Abstract

We present results from an ongoing lattice study of the lowest lying charmonium and bottomonium level splittings using the Fermilab heavy quark formalism. Our objective is to test the performance of this action on MILC-collaboration ensembles of (2+1) avors of light improved staggered (asqtad) quarks. Measurements are done on 16 ensembles with degenerate up and down quarks of various masses, thus permitting a chiral extrapolation, and over lattice spacings ranging from 0:09 fm to 0:18 fm, thus permitting study of lattice-spacing dependence. We examine combinations of the mass splittings that are sensitive to components of the effective quarkonium potential.

Original language	English (US)
Journal	Proceedings of Science
Volume	91
State	Published - 2009
Event	27th International Symposium on Lattice Field Theory, LAT 2009 - Beijing, China Duration: Jul 26 2009 → Jul 31 2009

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abstract = "We present results from an ongoing lattice study of the lowest lying charmonium and bottomonium level splittings using the Fermilab heavy quark formalism. Our objective is to test the performance of this action on MILC-collaboration ensembles of (2+1) avors of light improved staggered (asqtad) quarks. Measurements are done on 16 ensembles with degenerate up and down quarks of various masses, thus permitting a chiral extrapolation, and over lattice spacings ranging from 0:09 fm to 0:18 fm, thus permitting study of lattice-spacing dependence. We examine combinations of the mass splittings that are sensitive to components of the effective quarkonium potential.",

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note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.; 27th International Symposium on Lattice Field Theory, LAT 2009 ; Conference date: 26-07-2009 Through 31-07-2009",

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language = "English (US)",

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T1 - Quarkonium mass splittings with Fermilab heavy quarks and 2+1 flavors of improved staggered sea quarks

AU - Burch, T.

AU - DeTar, C. E.

AU - Levkova, L.

AU - Di Pierro, M.

AU - El-Khadra, A. X.

AU - Gottlieb, Steven

AU - Kronfeld, A. S.

AU - Mackenzie, P. B.

AU - Simone, J. N.

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.

PY - 2009

Y1 - 2009

N2 - We present results from an ongoing lattice study of the lowest lying charmonium and bottomonium level splittings using the Fermilab heavy quark formalism. Our objective is to test the performance of this action on MILC-collaboration ensembles of (2+1) avors of light improved staggered (asqtad) quarks. Measurements are done on 16 ensembles with degenerate up and down quarks of various masses, thus permitting a chiral extrapolation, and over lattice spacings ranging from 0:09 fm to 0:18 fm, thus permitting study of lattice-spacing dependence. We examine combinations of the mass splittings that are sensitive to components of the effective quarkonium potential.

AB - We present results from an ongoing lattice study of the lowest lying charmonium and bottomonium level splittings using the Fermilab heavy quark formalism. Our objective is to test the performance of this action on MILC-collaboration ensembles of (2+1) avors of light improved staggered (asqtad) quarks. Measurements are done on 16 ensembles with degenerate up and down quarks of various masses, thus permitting a chiral extrapolation, and over lattice spacings ranging from 0:09 fm to 0:18 fm, thus permitting study of lattice-spacing dependence. We examine combinations of the mass splittings that are sensitive to components of the effective quarkonium potential.

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M3 - Conference article

AN - SCOPUS:85055261503

SN - 1824-8039

VL - 91

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 27th International Symposium on Lattice Field Theory, LAT 2009

Y2 - 26 July 2009 through 31 July 2009

ER -

Quarkonium mass splittings with Fermilab heavy quarks and 2+1 flavors of improved staggered sea quarks

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