The role of strange sea quarks in chiral extrapolations on the lattice

Abstract. Since the strange quark has a light mass of order $O(\Lambda_{\mathrm {{QCD}}})$, fluctuations of sea $s\bar{s}$ pairs may play a special role in the low-energy dynamics of QCD by inducing significantly different patterns of chiral symmetry breaking in the chiral limits Nf = 2 (mu = md = 0...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Descotes-Genon, S. [verfasserIn]

Format:	Artikel
Sprache:	Englisch

Erschienen:	2005

Schlagwörter:	Chiral Symmetry Strange Quark Chiral Symmetry Breaking Chiral Limit Chiral Expansion

Anmerkung:	© Springer-Verlag Berlin/Heidelberg 2005

Übergeordnetes Werk:	Enthalten in: The European physical journal / C - Springer-Verlag, 1998, 40(2005), 1 vom: März, Seite 81-96
Übergeordnetes Werk:	volume:40 ; year:2005 ; number:1 ; month:03 ; pages:81-96

Links:	Volltext

DOI / URN:	10.1140/epjc/s2005-02130-4

Katalog-ID:	OLC2069083772

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allfields	10.1140/epjc/s2005-02130-4 doi (DE-627)OLC2069083772 (DE-He213)s2005-02130-4-p DE-627 ger DE-627 rakwb eng 530 VZ 530 VZ Descotes-Genon, S. verfasserin aut The role of strange sea quarks in chiral extrapolations on the lattice 2005 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag Berlin/Heidelberg 2005 Abstract. Since the strange quark has a light mass of order $O(\Lambda_{\mathrm {{QCD}}})$, fluctuations of sea $s\bar{s}$ pairs may play a special role in the low-energy dynamics of QCD by inducing significantly different patterns of chiral symmetry breaking in the chiral limits Nf = 2 (mu = md = 0, ms physical) and Nf = 3 (mu = md = ms = 0). This effect of vacuum fluctuations of $s\bar{s}$ pairs is related to the violation of the Zweig rule in the scalar sector, described through the two O(p4) low-energy constants L4 and L6 of the three-flavour strong chiral lagrangian. In the case of significant vacuum fluctuations, three-flavour chiral expansions might exhibit numerical competition between leading- and next-to-leading-order terms according to the chiral counting, and chiral extrapolations should be handled with special care. We investigate the impact of the fluctuations of $s\bar{s}$ pairs on chiral extrapolations in the case of lattice simulations with three dynamical flavours in the isospin limit. Information on the size of the vacuum fluctuations can be obtained from the dependence of the masses and decay constants of pions and kaons on the light quark masses. Even in the case of large fluctuations, corrections due to the finite size of spatial dimensions can be kept under control for large enough boxes ($L\sim 2.5$ fm). Chiral Symmetry Strange Quark Chiral Symmetry Breaking Chiral Limit Chiral Expansion Enthalten in The European physical journal / C Springer-Verlag, 1998 40(2005), 1 vom: März, Seite 81-96 (DE-627)235469777 (DE-600)1397769-6 (DE-576)061879150 1434-6044 nnns volume:40 year:2005 number:1 month:03 pages:81-96 https://doi.org/10.1140/epjc/s2005-02130-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_40 GBV_ILN_62 GBV_ILN_70 GBV_ILN_130 GBV_ILN_267 GBV_ILN_2003 GBV_ILN_2018 GBV_ILN_4029 GBV_ILN_4116 GBV_ILN_4277 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4310 GBV_ILN_4317 AR 40 2005 1 03 81-96
spelling	10.1140/epjc/s2005-02130-4 doi (DE-627)OLC2069083772 (DE-He213)s2005-02130-4-p DE-627 ger DE-627 rakwb eng 530 VZ 530 VZ Descotes-Genon, S. verfasserin aut The role of strange sea quarks in chiral extrapolations on the lattice 2005 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag Berlin/Heidelberg 2005 Abstract. Since the strange quark has a light mass of order $O(\Lambda_{\mathrm {{QCD}}})$, fluctuations of sea $s\bar{s}$ pairs may play a special role in the low-energy dynamics of QCD by inducing significantly different patterns of chiral symmetry breaking in the chiral limits Nf = 2 (mu = md = 0, ms physical) and Nf = 3 (mu = md = ms = 0). This effect of vacuum fluctuations of $s\bar{s}$ pairs is related to the violation of the Zweig rule in the scalar sector, described through the two O(p4) low-energy constants L4 and L6 of the three-flavour strong chiral lagrangian. In the case of significant vacuum fluctuations, three-flavour chiral expansions might exhibit numerical competition between leading- and next-to-leading-order terms according to the chiral counting, and chiral extrapolations should be handled with special care. We investigate the impact of the fluctuations of $s\bar{s}$ pairs on chiral extrapolations in the case of lattice simulations with three dynamical flavours in the isospin limit. Information on the size of the vacuum fluctuations can be obtained from the dependence of the masses and decay constants of pions and kaons on the light quark masses. Even in the case of large fluctuations, corrections due to the finite size of spatial dimensions can be kept under control for large enough boxes ($L\sim 2.5$ fm). Chiral Symmetry Strange Quark Chiral Symmetry Breaking Chiral Limit Chiral Expansion Enthalten in The European physical journal / C Springer-Verlag, 1998 40(2005), 1 vom: März, Seite 81-96 (DE-627)235469777 (DE-600)1397769-6 (DE-576)061879150 1434-6044 nnns volume:40 year:2005 number:1 month:03 pages:81-96 https://doi.org/10.1140/epjc/s2005-02130-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_40 GBV_ILN_62 GBV_ILN_70 GBV_ILN_130 GBV_ILN_267 GBV_ILN_2003 GBV_ILN_2018 GBV_ILN_4029 GBV_ILN_4116 GBV_ILN_4277 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4310 GBV_ILN_4317 AR 40 2005 1 03 81-96
allfields_unstemmed	10.1140/epjc/s2005-02130-4 doi (DE-627)OLC2069083772 (DE-He213)s2005-02130-4-p DE-627 ger DE-627 rakwb eng 530 VZ 530 VZ Descotes-Genon, S. verfasserin aut The role of strange sea quarks in chiral extrapolations on the lattice 2005 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag Berlin/Heidelberg 2005 Abstract. Since the strange quark has a light mass of order $O(\Lambda_{\mathrm {{QCD}}})$, fluctuations of sea $s\bar{s}$ pairs may play a special role in the low-energy dynamics of QCD by inducing significantly different patterns of chiral symmetry breaking in the chiral limits Nf = 2 (mu = md = 0, ms physical) and Nf = 3 (mu = md = ms = 0). This effect of vacuum fluctuations of $s\bar{s}$ pairs is related to the violation of the Zweig rule in the scalar sector, described through the two O(p4) low-energy constants L4 and L6 of the three-flavour strong chiral lagrangian. In the case of significant vacuum fluctuations, three-flavour chiral expansions might exhibit numerical competition between leading- and next-to-leading-order terms according to the chiral counting, and chiral extrapolations should be handled with special care. We investigate the impact of the fluctuations of $s\bar{s}$ pairs on chiral extrapolations in the case of lattice simulations with three dynamical flavours in the isospin limit. Information on the size of the vacuum fluctuations can be obtained from the dependence of the masses and decay constants of pions and kaons on the light quark masses. Even in the case of large fluctuations, corrections due to the finite size of spatial dimensions can be kept under control for large enough boxes ($L\sim 2.5$ fm). Chiral Symmetry Strange Quark Chiral Symmetry Breaking Chiral Limit Chiral Expansion Enthalten in The European physical journal / C Springer-Verlag, 1998 40(2005), 1 vom: März, Seite 81-96 (DE-627)235469777 (DE-600)1397769-6 (DE-576)061879150 1434-6044 nnns volume:40 year:2005 number:1 month:03 pages:81-96 https://doi.org/10.1140/epjc/s2005-02130-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_40 GBV_ILN_62 GBV_ILN_70 GBV_ILN_130 GBV_ILN_267 GBV_ILN_2003 GBV_ILN_2018 GBV_ILN_4029 GBV_ILN_4116 GBV_ILN_4277 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4310 GBV_ILN_4317 AR 40 2005 1 03 81-96
allfieldsGer	10.1140/epjc/s2005-02130-4 doi (DE-627)OLC2069083772 (DE-He213)s2005-02130-4-p DE-627 ger DE-627 rakwb eng 530 VZ 530 VZ Descotes-Genon, S. verfasserin aut The role of strange sea quarks in chiral extrapolations on the lattice 2005 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag Berlin/Heidelberg 2005 Abstract. Since the strange quark has a light mass of order $O(\Lambda_{\mathrm {{QCD}}})$, fluctuations of sea $s\bar{s}$ pairs may play a special role in the low-energy dynamics of QCD by inducing significantly different patterns of chiral symmetry breaking in the chiral limits Nf = 2 (mu = md = 0, ms physical) and Nf = 3 (mu = md = ms = 0). This effect of vacuum fluctuations of $s\bar{s}$ pairs is related to the violation of the Zweig rule in the scalar sector, described through the two O(p4) low-energy constants L4 and L6 of the three-flavour strong chiral lagrangian. In the case of significant vacuum fluctuations, three-flavour chiral expansions might exhibit numerical competition between leading- and next-to-leading-order terms according to the chiral counting, and chiral extrapolations should be handled with special care. We investigate the impact of the fluctuations of $s\bar{s}$ pairs on chiral extrapolations in the case of lattice simulations with three dynamical flavours in the isospin limit. Information on the size of the vacuum fluctuations can be obtained from the dependence of the masses and decay constants of pions and kaons on the light quark masses. Even in the case of large fluctuations, corrections due to the finite size of spatial dimensions can be kept under control for large enough boxes ($L\sim 2.5$ fm). Chiral Symmetry Strange Quark Chiral Symmetry Breaking Chiral Limit Chiral Expansion Enthalten in The European physical journal / C Springer-Verlag, 1998 40(2005), 1 vom: März, Seite 81-96 (DE-627)235469777 (DE-600)1397769-6 (DE-576)061879150 1434-6044 nnns volume:40 year:2005 number:1 month:03 pages:81-96 https://doi.org/10.1140/epjc/s2005-02130-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_40 GBV_ILN_62 GBV_ILN_70 GBV_ILN_130 GBV_ILN_267 GBV_ILN_2003 GBV_ILN_2018 GBV_ILN_4029 GBV_ILN_4116 GBV_ILN_4277 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4310 GBV_ILN_4317 AR 40 2005 1 03 81-96
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author	Descotes-Genon, S.
spellingShingle	Descotes-Genon, S. ddc 530 misc Chiral Symmetry misc Strange Quark misc Chiral Symmetry Breaking misc Chiral Limit misc Chiral Expansion The role of strange sea quarks in chiral extrapolations on the lattice
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title	The role of strange sea quarks in chiral extrapolations on the lattice
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title_full	The role of strange sea quarks in chiral extrapolations on the lattice
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title_sort	the role of strange sea quarks in chiral extrapolations on the lattice
title_auth	The role of strange sea quarks in chiral extrapolations on the lattice
abstract	Abstract. Since the strange quark has a light mass of order $O(\Lambda_{\mathrm {{QCD}}})$, fluctuations of sea $s\bar{s}$ pairs may play a special role in the low-energy dynamics of QCD by inducing significantly different patterns of chiral symmetry breaking in the chiral limits Nf = 2 (mu = md = 0, ms physical) and Nf = 3 (mu = md = ms = 0). This effect of vacuum fluctuations of $s\bar{s}$ pairs is related to the violation of the Zweig rule in the scalar sector, described through the two O(p4) low-energy constants L4 and L6 of the three-flavour strong chiral lagrangian. In the case of significant vacuum fluctuations, three-flavour chiral expansions might exhibit numerical competition between leading- and next-to-leading-order terms according to the chiral counting, and chiral extrapolations should be handled with special care. We investigate the impact of the fluctuations of $s\bar{s}$ pairs on chiral extrapolations in the case of lattice simulations with three dynamical flavours in the isospin limit. Information on the size of the vacuum fluctuations can be obtained from the dependence of the masses and decay constants of pions and kaons on the light quark masses. Even in the case of large fluctuations, corrections due to the finite size of spatial dimensions can be kept under control for large enough boxes ($L\sim 2.5$ fm). © Springer-Verlag Berlin/Heidelberg 2005
abstractGer	Abstract. Since the strange quark has a light mass of order $O(\Lambda_{\mathrm {{QCD}}})$, fluctuations of sea $s\bar{s}$ pairs may play a special role in the low-energy dynamics of QCD by inducing significantly different patterns of chiral symmetry breaking in the chiral limits Nf = 2 (mu = md = 0, ms physical) and Nf = 3 (mu = md = ms = 0). This effect of vacuum fluctuations of $s\bar{s}$ pairs is related to the violation of the Zweig rule in the scalar sector, described through the two O(p4) low-energy constants L4 and L6 of the three-flavour strong chiral lagrangian. In the case of significant vacuum fluctuations, three-flavour chiral expansions might exhibit numerical competition between leading- and next-to-leading-order terms according to the chiral counting, and chiral extrapolations should be handled with special care. We investigate the impact of the fluctuations of $s\bar{s}$ pairs on chiral extrapolations in the case of lattice simulations with three dynamical flavours in the isospin limit. Information on the size of the vacuum fluctuations can be obtained from the dependence of the masses and decay constants of pions and kaons on the light quark masses. Even in the case of large fluctuations, corrections due to the finite size of spatial dimensions can be kept under control for large enough boxes ($L\sim 2.5$ fm). © Springer-Verlag Berlin/Heidelberg 2005
abstract_unstemmed	Abstract. Since the strange quark has a light mass of order $O(\Lambda_{\mathrm {{QCD}}})$, fluctuations of sea $s\bar{s}$ pairs may play a special role in the low-energy dynamics of QCD by inducing significantly different patterns of chiral symmetry breaking in the chiral limits Nf = 2 (mu = md = 0, ms physical) and Nf = 3 (mu = md = ms = 0). This effect of vacuum fluctuations of $s\bar{s}$ pairs is related to the violation of the Zweig rule in the scalar sector, described through the two O(p4) low-energy constants L4 and L6 of the three-flavour strong chiral lagrangian. In the case of significant vacuum fluctuations, three-flavour chiral expansions might exhibit numerical competition between leading- and next-to-leading-order terms according to the chiral counting, and chiral extrapolations should be handled with special care. We investigate the impact of the fluctuations of $s\bar{s}$ pairs on chiral extrapolations in the case of lattice simulations with three dynamical flavours in the isospin limit. Information on the size of the vacuum fluctuations can be obtained from the dependence of the masses and decay constants of pions and kaons on the light quark masses. Even in the case of large fluctuations, corrections due to the finite size of spatial dimensions can be kept under control for large enough boxes ($L\sim 2.5$ fm). © Springer-Verlag Berlin/Heidelberg 2005
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title_short	The role of strange sea quarks in chiral extrapolations on the lattice
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