Systematic errors in extracting nucleon properties from lattice QCD

Stefano Capitani, Michele Della Morte, Bastian Knippschild, Hartmut Wittig

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

Form factors of the nucleon have been extracted from experiment with high precision. However, lattice calculations have failed so far to reproduce the observed dependence of form factors on the momentum transfer. We have embarked on a program to thoroughly investigate systematic effects in lattice calculation of the required three-point correlation functions. Here we focus on the possible contamination from higher excited states and present a method which is designed to suppress them. Its effectiveness is tested for several baryonic matrix elements, different lattice sizes and pion masses.
OriginalsprogUdefineret/Ukendt
TidsskriftPoS LATTICE
StatusUdgivet - 5. nov. 2010

Bibliografisk note

7 pages, 8 figures

Emneord

  • hep-lat

Citer dette

Capitani, Stefano ; Morte, Michele Della ; Knippschild, Bastian ; Wittig, Hartmut. / Systematic errors in extracting nucleon properties from lattice QCD. I: PoS LATTICE. 2010.
@article{43ca54a5a3be46dea127b56f5134f07d,
title = "Systematic errors in extracting nucleon properties from lattice QCD",
abstract = "Form factors of the nucleon have been extracted from experiment with high precision. However, lattice calculations have failed so far to reproduce the observed dependence of form factors on the momentum transfer. We have embarked on a program to thoroughly investigate systematic effects in lattice calculation of the required three-point correlation functions. Here we focus on the possible contamination from higher excited states and present a method which is designed to suppress them. Its effectiveness is tested for several baryonic matrix elements, different lattice sizes and pion masses.",
keywords = "hep-lat",
author = "Stefano Capitani and Morte, {Michele Della} and Bastian Knippschild and Hartmut Wittig",
note = "7 pages, 8 figures",
year = "2010",
month = "11",
day = "5",
language = "Udefineret/Ukendt",
journal = "PoS LATTICE",

}

Systematic errors in extracting nucleon properties from lattice QCD. / Capitani, Stefano; Morte, Michele Della; Knippschild, Bastian; Wittig, Hartmut.

I: PoS LATTICE, 05.11.2010.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Systematic errors in extracting nucleon properties from lattice QCD

AU - Capitani, Stefano

AU - Morte, Michele Della

AU - Knippschild, Bastian

AU - Wittig, Hartmut

N1 - 7 pages, 8 figures

PY - 2010/11/5

Y1 - 2010/11/5

N2 - Form factors of the nucleon have been extracted from experiment with high precision. However, lattice calculations have failed so far to reproduce the observed dependence of form factors on the momentum transfer. We have embarked on a program to thoroughly investigate systematic effects in lattice calculation of the required three-point correlation functions. Here we focus on the possible contamination from higher excited states and present a method which is designed to suppress them. Its effectiveness is tested for several baryonic matrix elements, different lattice sizes and pion masses.

AB - Form factors of the nucleon have been extracted from experiment with high precision. However, lattice calculations have failed so far to reproduce the observed dependence of form factors on the momentum transfer. We have embarked on a program to thoroughly investigate systematic effects in lattice calculation of the required three-point correlation functions. Here we focus on the possible contamination from higher excited states and present a method which is designed to suppress them. Its effectiveness is tested for several baryonic matrix elements, different lattice sizes and pion masses.

KW - hep-lat

M3 - Tidsskriftartikel

JO - PoS LATTICE

JF - PoS LATTICE

ER -