∆ electromagnetic form factors and quark transverse charge densities from lattice QCD

C. Alexandrou; T. Korzec; G. Koutsou; C. Lorcé; V. Pascalutsa; M. Vanderhaeghen; J. W. Negele; A. Tsapalis

∆ electromagnetic form factors and quark transverse charge densities from lattice QCD

C. Alexandrou
, T. Korzec
, G. Koutsou
, C. Lorcé
, V. Pascalutsa
, M. Vanderhaeghen
, J. W. Negele
, A. Tsapalis

University of Cyprus
Environment and Water Research Center
Bergische Universität Gesamthochschule Wuppertal
Research Centre Julich
Johannes Gutenberg University
Center for Theoretical Physics
University of Athens
Hellenic Naval Academy

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

Abstract

We discuss the techniques to extract the electromagnetic ∆ form factors in Lattice QCD. We evaluate these form factors using dynamical fermions with smallest Pion mass of about 350 MeV. We pay particular attention to the extraction of the electric quadrupole form factor that signals a deformation of the ∆. The magnetic moment of the ∆ is extrapolated using a chiral effective field theory. Using the form factors we evaluate the transverse density distributions in the infinite momentum frame showing deformation in the ∆.

Original language	English
Journal	Proceedings of Science
Volume	86
Publication status	Published - 1 Jan 2009
Externally published	Yes
Event	6th International Workshop on Chiral Dynamics, CD 2009 - Bern, Switzerland Duration: 6 Jul 2009 → 10 Jul 2009

Cite this

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title = "∆ electromagnetic form factors and quark transverse charge densities from lattice QCD",

abstract = "We discuss the techniques to extract the electromagnetic ∆ form factors in Lattice QCD. We evaluate these form factors using dynamical fermions with smallest Pion mass of about 350 MeV. We pay particular attention to the extraction of the electric quadrupole form factor that signals a deformation of the ∆. The magnetic moment of the ∆ is extrapolated using a chiral effective field theory. Using the form factors we evaluate the transverse density distributions in the infinite momentum frame showing deformation in the ∆.",

author = "C. Alexandrou and T. Korzec and G. Koutsou and C. Lorc{\'e} and V. Pascalutsa and M. Vanderhaeghen and Negele, \{J. W.\} and A. Tsapalis",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.; 6th International Workshop on Chiral Dynamics, CD 2009 ; Conference date: 06-07-2009 Through 10-07-2009",

year = "2009",

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language = "English",

volume = "86",

journal = "Proceedings of Science",

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TY - JOUR

T1 - ∆ electromagnetic form factors and quark transverse charge densities from lattice QCD

AU - Alexandrou, C.

AU - Korzec, T.

AU - Koutsou, G.

AU - Lorcé, C.

AU - Pascalutsa, V.

AU - Vanderhaeghen, M.

AU - Negele, J. W.

AU - Tsapalis, A.

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

PY - 2009/1/1

Y1 - 2009/1/1

N2 - We discuss the techniques to extract the electromagnetic ∆ form factors in Lattice QCD. We evaluate these form factors using dynamical fermions with smallest Pion mass of about 350 MeV. We pay particular attention to the extraction of the electric quadrupole form factor that signals a deformation of the ∆. The magnetic moment of the ∆ is extrapolated using a chiral effective field theory. Using the form factors we evaluate the transverse density distributions in the infinite momentum frame showing deformation in the ∆.

AB - We discuss the techniques to extract the electromagnetic ∆ form factors in Lattice QCD. We evaluate these form factors using dynamical fermions with smallest Pion mass of about 350 MeV. We pay particular attention to the extraction of the electric quadrupole form factor that signals a deformation of the ∆. The magnetic moment of the ∆ is extrapolated using a chiral effective field theory. Using the form factors we evaluate the transverse density distributions in the infinite momentum frame showing deformation in the ∆.

M3 - Conference article

AN - SCOPUS:85055292825

SN - 1824-8039

VL - 86

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 6th International Workshop on Chiral Dynamics, CD 2009

Y2 - 6 July 2009 through 10 July 2009

ER -

∆ electromagnetic form factors and quark transverse charge densities from lattice QCD

Abstract

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