SU(2) chiral perturbation theory low-energy constants from staggered 2+1 flavor simulations

Enno E. Scholz; Szabolcs Borsányi; Stephan Dürr; Zoltán Fodor; Sandor D. Katz; Stefan Krieg; Andreas Schäfer; Kalman K. Szabo

SU(2) chiral perturbation theory low-energy constants from staggered 2+1 flavor simulations

Enno E. Scholz
, Szabolcs Borsányi
, Stephan Dürr
, Zoltán Fodor
, Sandor D. Katz
, Stefan Krieg
, Andreas Schäfer
, Kalman K. Szabo

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

Abstract

We measure the pion mass and decay constant on ensembles generated by the Wuppertal-Budapest Collaboration, and extract the NLO low-energy constants l^¯ ₃ and l^¯ ₄ of SU(2) chiral perturbation theory. The data are generated in 2+1 flavor simulations with Symanzik glue and 2-fold stout-smeared staggered fermions, with pion masses varying from 135 MeV to 400 MeV, lattice scales between 0.7 GeV and 2.0 GeV, and m_s kept at its physical value. Furthermore, by excluding the lightest mass points, we are able to test the reliability of SU(2) chPT as a tool to extrapolate towards the physical point from higher pion masses.

Original language	English (US)
Journal	Proceedings of Science
Volume	139
State	Published - 2011
Event	29th International Symposium on Lattice Field Theory, Lattice 2011 - Squaw Valley, Lake Tahoe, United States Duration: Jul 10 2011 → Jul 16 2011

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Cite this

@article{3d619ac0ecd44b15885de78a03444197,

title = "SU(2) chiral perturbation theory low-energy constants from staggered 2+1 flavor simulations",

abstract = "We measure the pion mass and decay constant on ensembles generated by the Wuppertal-Budapest Collaboration, and extract the NLO low-energy constants l¯ 3 and l¯ 4 of SU(2) chiral perturbation theory. The data are generated in 2+1 flavor simulations with Symanzik glue and 2-fold stout-smeared staggered fermions, with pion masses varying from 135 MeV to 400 MeV, lattice scales between 0.7 GeV and 2.0 GeV, and ms kept at its physical value. Furthermore, by excluding the lightest mass points, we are able to test the reliability of SU(2) chPT as a tool to extrapolate towards the physical point from higher pion masses.",

author = "Scholz, \{Enno E.\} and Szabolcs Bors{\'a}nyi and Stephan D{\"u}rr and Zolt{\'a}n Fodor and Katz, \{Sandor D.\} and Stefan Krieg and Andreas Sch{\"a}fer and Szabo, \{Kalman K.\}",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s).; 29th International Symposium on Lattice Field Theory, Lattice 2011 ; Conference date: 10-07-2011 Through 16-07-2011",

year = "2011",

language = "English (US)",

volume = "139",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

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TY - JOUR

T1 - SU(2) chiral perturbation theory low-energy constants from staggered 2+1 flavor simulations

AU - Scholz, Enno E.

AU - Borsányi, Szabolcs

AU - Dürr, Stephan

AU - Fodor, Zoltán

AU - Katz, Sandor D.

AU - Krieg, Stefan

AU - Schäfer, Andreas

AU - Szabo, Kalman K.

PY - 2011

Y1 - 2011

N2 - We measure the pion mass and decay constant on ensembles generated by the Wuppertal-Budapest Collaboration, and extract the NLO low-energy constants l¯ 3 and l¯ 4 of SU(2) chiral perturbation theory. The data are generated in 2+1 flavor simulations with Symanzik glue and 2-fold stout-smeared staggered fermions, with pion masses varying from 135 MeV to 400 MeV, lattice scales between 0.7 GeV and 2.0 GeV, and ms kept at its physical value. Furthermore, by excluding the lightest mass points, we are able to test the reliability of SU(2) chPT as a tool to extrapolate towards the physical point from higher pion masses.

AB - We measure the pion mass and decay constant on ensembles generated by the Wuppertal-Budapest Collaboration, and extract the NLO low-energy constants l¯ 3 and l¯ 4 of SU(2) chiral perturbation theory. The data are generated in 2+1 flavor simulations with Symanzik glue and 2-fold stout-smeared staggered fermions, with pion masses varying from 135 MeV to 400 MeV, lattice scales between 0.7 GeV and 2.0 GeV, and ms kept at its physical value. Furthermore, by excluding the lightest mass points, we are able to test the reliability of SU(2) chPT as a tool to extrapolate towards the physical point from higher pion masses.

UR - https://www.scopus.com/pages/publications/85053350931

UR - https://www.scopus.com/pages/publications/85053350931#tab=citedBy

M3 - Conference article

AN - SCOPUS:85053350931

SN - 1824-8039

VL - 139

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 29th International Symposium on Lattice Field Theory, Lattice 2011

Y2 - 10 July 2011 through 16 July 2011

ER -

SU(2) chiral perturbation theory low-energy constants from staggered 2+1 flavor simulations

Abstract

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