publication . Preprint . 2014

Analyticity of $\eta\pi$ isospin-violating form factors and the $\tau\to\eta\pi\nu$ second-class decay

Descotes-Genon, S.; Moussallam, B.;
Open Access English
  • Published: 01 Apr 2014
Abstract
Comment: v2: Some clarifications and corrections of a number of typos
Subjects
arXiv: High Energy Physics::ExperimentNuclear Experiment
free text keywords: High Energy Physics - Phenomenology
Funded by
EC| HADRONPHYSICS3
Project
HADRONPHYSICS3
Study of Strongly Interacting Matter
  • Funder: European Commission (EC)
  • Project Code: 283286
  • Funding stream: FP7 | SP4 | INFRA
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72 references, page 1 of 5

5 Dispersive evaluation of f+ηπ 17 5.1 Brief review of the Khuri-Treiman formalism . . . . . . . . . . . . . . . . 18 5.2 Singularities of the functions MˆI . . . . . . . . . . . . . . . . . . . . . . . 19 5.3 Matching with ChPT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 5.4 Numerical solutions and comparisons with the η → 3π data . . . . . . . . 23 5.5 Results for f+ηπ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

6 Dispersive estimate of f0ηπ 29 6.1 Phase dispersive representation . . . . . . . . . . . . . . . . . . . . . . . 29 6.2 Results for f0ηπ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

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