Sigma term and strangeness content of the nucleon

S. Dürr; Z. Fodor; J. Frison; T. Hemmert; C. Hoelbling; S. D. Katz; S. Krieg; T. Kurth; L. Lellouch; T. Lippert; A. Portelli; A. Ramos; A. Schäfer; K. K. Szabó

Sigma term and strangeness content of the nucleon

S. Dürr
, Z. Fodor
, J. Frison
, T. Hemmert
, C. Hoelbling
, S. D. Katz
, S. Krieg
, T. Kurth
, L. Lellouch
, T. Lippert
, A. Portelli
, A. Ramos
, A. Schäfer
, K. K. Szabó

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

Abstract

A status report is given for a joint project of the Budapest-Marseille-Wuppertal collaboration and the Regensburg group to study the quark mass-dependence of octet baryons in SU(3) Baryon XPT. This formulation is expected to extend to larger masses than Heavy-Baryon XPT. Its applicability is tested with 2+1 flavor data which cover three lattice spacings and pion masses down to about 190 MeV, in large volumes. Also polynomial and rational interpolations in M_π ² and M_K ² are used to assess the uncertainty due to the ansatz. Both frameworks are combined to explore the precision to be expected in a controlled determination of the nucleon sigma term and strangeness content.

Original language	English (US)
Journal	Proceedings of Science
Volume	105
State	Published - 2010
Event	28th International Symposium on Lattice Field Theory, Lattice 2010 - Villasimius, Sardinia, Italy Duration: Jun 14 2010 → Jun 19 2010

All Science Journal Classification (ASJC) codes

General

Cite this

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title = "Sigma term and strangeness content of the nucleon",

abstract = "A status report is given for a joint project of the Budapest-Marseille-Wuppertal collaboration and the Regensburg group to study the quark mass-dependence of octet baryons in SU(3) Baryon XPT. This formulation is expected to extend to larger masses than Heavy-Baryon XPT. Its applicability is tested with 2+1 flavor data which cover three lattice spacings and pion masses down to about 190 MeV, in large volumes. Also polynomial and rational interpolations in Mπ 2 and MK 2 are used to assess the uncertainty due to the ansatz. Both frameworks are combined to explore the precision to be expected in a controlled determination of the nucleon sigma term and strangeness content.",

author = "S. D{\"u}rr and Z. Fodor and J. Frison and T. Hemmert and C. Hoelbling and Katz, \{S. D.\} and S. Krieg and T. Kurth and L. Lellouch and T. Lippert and A. Portelli and A. Ramos and A. Sch{\"a}fer and Szab{\'o}, \{K. K.\}",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.; 28th International Symposium on Lattice Field Theory, Lattice 2010 ; Conference date: 14-06-2010 Through 19-06-2010",

year = "2010",

language = "English (US)",

volume = "105",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

}

TY - JOUR

T1 - Sigma term and strangeness content of the nucleon

AU - Dürr, S.

AU - Fodor, Z.

AU - Frison, J.

AU - Hemmert, T.

AU - Hoelbling, C.

AU - Katz, S. D.

AU - Krieg, S.

AU - Kurth, T.

AU - Lellouch, L.

AU - Lippert, T.

AU - Portelli, A.

AU - Ramos, A.

AU - Schäfer, A.

AU - Szabó, K. K.

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

PY - 2010

Y1 - 2010

N2 - A status report is given for a joint project of the Budapest-Marseille-Wuppertal collaboration and the Regensburg group to study the quark mass-dependence of octet baryons in SU(3) Baryon XPT. This formulation is expected to extend to larger masses than Heavy-Baryon XPT. Its applicability is tested with 2+1 flavor data which cover three lattice spacings and pion masses down to about 190 MeV, in large volumes. Also polynomial and rational interpolations in Mπ 2 and MK 2 are used to assess the uncertainty due to the ansatz. Both frameworks are combined to explore the precision to be expected in a controlled determination of the nucleon sigma term and strangeness content.

AB - A status report is given for a joint project of the Budapest-Marseille-Wuppertal collaboration and the Regensburg group to study the quark mass-dependence of octet baryons in SU(3) Baryon XPT. This formulation is expected to extend to larger masses than Heavy-Baryon XPT. Its applicability is tested with 2+1 flavor data which cover three lattice spacings and pion masses down to about 190 MeV, in large volumes. Also polynomial and rational interpolations in Mπ 2 and MK 2 are used to assess the uncertainty due to the ansatz. Both frameworks are combined to explore the precision to be expected in a controlled determination of the nucleon sigma term and strangeness content.

UR - https://www.scopus.com/pages/publications/85055321158

UR - https://www.scopus.com/pages/publications/85055321158#tab=citedBy

M3 - Conference article

AN - SCOPUS:85055321158

SN - 1824-8039

VL - 105

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 28th International Symposium on Lattice Field Theory, Lattice 2010

Y2 - 14 June 2010 through 19 June 2010

ER -

Sigma term and strangeness content of the nucleon

Abstract

All Science Journal Classification (ASJC) codes

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