The $\Delta(1232)$ axial charge and form factors from lattice QCD

C. Alexandrou; E. B. Gregory; T. Korzec; G. Koutsou; J. W. Negele; T. Sato; A. Tsapalis

doi:10.1103/PhysRevLett.107.141601

The $\Delta(1232)$ axial charge and form factors from lattice QCD

High Energy Physics - Lattice 2015-05-28 v1 High Energy Physics - Phenomenology Nuclear Experiment Nuclear Theory

Authors: C. Alexandrou , E. B. Gregory , T. Korzec , G. Koutsou , J. W. Negele , T. Sato , A. Tsapalis

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Abstract

We present the first calculation on the $\Delta$ axial-vector and pseudoscalar form factors using lattice QCD. Two Goldberger-Treiman relations are derived and examined. A combined chiral fit is performed to the nucleon axial charge, N to $\Delta$ axial transition coupling constant and $\Delta$ axial charge.

Keywords

lattice QCD Δ(1232) axial charge form factors Goldberger-Treiman relations chiral fit nucleon axial charge N to Δ transition

Cite

@article{arxiv.1106.6000,
  title  = {The $\Delta(1232)$ axial charge and form factors from lattice QCD},
  author = {C. Alexandrou and E. B. Gregory and T. Korzec and G. Koutsou and J. W. Negele and T. Sato and A. Tsapalis},
  journal= {arXiv preprint arXiv:1106.6000},
  year   = {2015}
}

Comments

5 pages, 4 figures

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