Light hadrons from lattice QCD with light (u, d), strange and charm dynamical quarks

R. Baron; Ph Boucaud; J. Carbonell; A. Deuzeman; V. Drach; F. Farchioni; V. Gimenez; G. Herdoiza; K. Jansen; C. McNeile; C. Michael; I. Montvay; D. Palao; E. Pallante; O. Pene; C. Urbach; M. Wagner; U. Wenger; S. Reker

doi:10.1007/JHEP06(2010)111

Light hadrons from lattice QCD with light (u, d), strange and charm dynamical quarks

R. Baron, Ph Boucaud, J. Carbonell, A. Deuzeman, V. Drach, F. Farchioni, V. Gimenez, G. Herdoiza, K. Jansen, C. McNeile, C. Michael, I. Montvay, D. Palao, E. Pallante^*, O. Pene, C. Urbach, M. Wagner, U. Wenger, S. Reker

^*Corresponding author for this work

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Abstract

We present results of lattice QCD simulations with mass-degenerate up and down and mass-split strange and charm (N f = 2 + 1 + 1) dynamical quarks using Wilson twisted mass fermions at maximal twist. The tuning of the strange and charm quark masses is performed at two values of the lattice spacing a ≈ 0:078 fm and a ≈ 0:086 fm with lattice sizes ranging from L ≈ 1:9 fm to L ≈ 2:8 fm. We measure with high statistical precision the light pseudoscalar mass m PS and decay constant f PS in a range 270 ≲ m PS ≲ 510 MeV and determine the low energy parameters f 0 and l¯3,4 of SU(2) chiral perturbation theory. We use the two values of the lattice spacing, several lattice sizes as well as different values of the light, strange and charm quark masses to explore the systematic effects. A first study of discretisation effects in light-quark observables and a comparison to N f = 2 results are performed.

Original language	English
Article number	111
Number of pages	31
Journal	Journal of High Energy Physics
Issue number	6
DOIs	https://doi.org/10.1007/JHEP06(2010)111
Publication status	Published - Jun-2010

Keywords

Lattice QCD
Chiral Lagrangians
TWISTED MASS FERMIONS
CHIRAL PERTURBATION-THEORY
YANG-MILLS THEORY
PHASE-STRUCTURE
WILSON QUARKS
2 FLAVORS
ALGORITHM
SIMULATIONS
SCALE
MESON

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Baron, R., Boucaud, P., Carbonell, J., Deuzeman, A., Drach, V., Farchioni, F., Gimenez, V., Herdoiza, G., Jansen, K., McNeile, C., Michael, C., Montvay, I., Palao, D., Pallante, E., Pene, O., Urbach, C., Wagner, M., Wenger, U., & Reker, S. (2010). Light hadrons from lattice QCD with light (u, d), strange and charm dynamical quarks. Journal of High Energy Physics, (6), Article 111. https://doi.org/10.1007/JHEP06(2010)111

@article{5fb40a7714ff4de8b9f67a0751d6d700,

title = "Light hadrons from lattice QCD with light (u, d), strange and charm dynamical quarks",

abstract = "We present results of lattice QCD simulations with mass-degenerate up and down and mass-split strange and charm (N f = 2 + 1 + 1) dynamical quarks using Wilson twisted mass fermions at maximal twist. The tuning of the strange and charm quark masses is performed at two values of the lattice spacing a ≈ 0:078 fm and a ≈ 0:086 fm with lattice sizes ranging from L ≈ 1:9 fm to L ≈ 2:8 fm. We measure with high statistical precision the light pseudoscalar mass m PS and decay constant f PS in a range 270 ≲ m PS ≲ 510 MeV and determine the low energy parameters f 0 and l¯3,4 of SU(2) chiral perturbation theory. We use the two values of the lattice spacing, several lattice sizes as well as different values of the light, strange and charm quark masses to explore the systematic effects. A first study of discretisation effects in light-quark observables and a comparison to N f = 2 results are performed.",

keywords = "Lattice QCD, Chiral Lagrangians, TWISTED MASS FERMIONS, CHIRAL PERTURBATION-THEORY, YANG-MILLS THEORY, PHASE-STRUCTURE, WILSON QUARKS, 2 FLAVORS, ALGORITHM, SIMULATIONS, SCALE, MESON",

author = "R. Baron and Ph Boucaud and J. Carbonell and A. Deuzeman and V. Drach and F. Farchioni and V. Gimenez and G. Herdoiza and K. Jansen and C. McNeile and C. Michael and I. Montvay and D. Palao and E. Pallante and O. Pene and C. Urbach and M. Wagner and U. Wenger and S. Reker",

year = "2010",

month = jun,

doi = "10.1007/JHEP06(2010)111",

language = "English",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer",

number = "6",

}

Baron, R, Boucaud, P, Carbonell, J, Deuzeman, A, Drach, V, Farchioni, F, Gimenez, V, Herdoiza, G, Jansen, K, McNeile, C, Michael, C, Montvay, I, Palao, D, Pallante, E, Pene, O, Urbach, C, Wagner, M, Wenger, U & Reker, S 2010, 'Light hadrons from lattice QCD with light (u, d), strange and charm dynamical quarks', Journal of High Energy Physics, no. 6, 111. https://doi.org/10.1007/JHEP06(2010)111

TY - JOUR

T1 - Light hadrons from lattice QCD with light (u, d), strange and charm dynamical quarks

AU - Baron, R.

AU - Boucaud, Ph

AU - Carbonell, J.

AU - Deuzeman, A.

AU - Drach, V.

AU - Farchioni, F.

AU - Gimenez, V.

AU - Herdoiza, G.

AU - Jansen, K.

AU - McNeile, C.

AU - Michael, C.

AU - Montvay, I.

AU - Palao, D.

AU - Pallante, E.

AU - Pene, O.

AU - Urbach, C.

AU - Wagner, M.

AU - Wenger, U.

AU - Reker, S.

PY - 2010/6

Y1 - 2010/6

N2 - We present results of lattice QCD simulations with mass-degenerate up and down and mass-split strange and charm (N f = 2 + 1 + 1) dynamical quarks using Wilson twisted mass fermions at maximal twist. The tuning of the strange and charm quark masses is performed at two values of the lattice spacing a ≈ 0:078 fm and a ≈ 0:086 fm with lattice sizes ranging from L ≈ 1:9 fm to L ≈ 2:8 fm. We measure with high statistical precision the light pseudoscalar mass m PS and decay constant f PS in a range 270 ≲ m PS ≲ 510 MeV and determine the low energy parameters f 0 and l¯3,4 of SU(2) chiral perturbation theory. We use the two values of the lattice spacing, several lattice sizes as well as different values of the light, strange and charm quark masses to explore the systematic effects. A first study of discretisation effects in light-quark observables and a comparison to N f = 2 results are performed.

AB - We present results of lattice QCD simulations with mass-degenerate up and down and mass-split strange and charm (N f = 2 + 1 + 1) dynamical quarks using Wilson twisted mass fermions at maximal twist. The tuning of the strange and charm quark masses is performed at two values of the lattice spacing a ≈ 0:078 fm and a ≈ 0:086 fm with lattice sizes ranging from L ≈ 1:9 fm to L ≈ 2:8 fm. We measure with high statistical precision the light pseudoscalar mass m PS and decay constant f PS in a range 270 ≲ m PS ≲ 510 MeV and determine the low energy parameters f 0 and l¯3,4 of SU(2) chiral perturbation theory. We use the two values of the lattice spacing, several lattice sizes as well as different values of the light, strange and charm quark masses to explore the systematic effects. A first study of discretisation effects in light-quark observables and a comparison to N f = 2 results are performed.

KW - Lattice QCD

KW - Chiral Lagrangians

KW - TWISTED MASS FERMIONS

KW - CHIRAL PERTURBATION-THEORY

KW - YANG-MILLS THEORY

KW - PHASE-STRUCTURE

KW - WILSON QUARKS

KW - 2 FLAVORS

KW - ALGORITHM

KW - SIMULATIONS

KW - SCALE

KW - MESON

U2 - 10.1007/JHEP06(2010)111

DO - 10.1007/JHEP06(2010)111

M3 - Article

SN - 1126-6708

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 6

M1 - 111

ER -

Light hadrons from lattice QCD with light (u, d), strange and charm dynamical quarks

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