Hadronic matrix elements for TAUOLA: 3π and KKπ channels

Roig, Pablo

doi:10.1016/j.nuclphysbps.2009.03.015

Cited by 9 publications

(8 citation statements)

References 61 publications

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“…This formalism has been shown to successfully describe the invariant mass spectra of experimental data in τ decays for the following hadronic systems: ππ [517][518][519], πK [520,521], 3π [509,512,513,522] and KKπ [512,522]. Other channels will be worked out along the same lines.…”

Section: The Resonance Chiral Approximation and Its Results For The Cumentioning

confidence: 99%

Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data

Actis

Arbuzov²,

Balossini³

et al. 2010

Eur. Phys. J. C

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306

179

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We present the achievements of the last years of the experimental and theoretical groups working on hadronic cross section measurements at the low-energy e + e − colliders in Beijing, Frascati, Ithaca, Novosibirsk, Stanford and Tsukuba and on τ decays. We sketch the prospects in these fields for the years to come. We emphasise the status and the precision of the Monte Carlo generators used to analyse the hadronic cross section measurements obtained as well with energy scans as with radiative return, to determine luminosities and τ decays. The radiative corrections fully or approximately implemented in the various codes and the contribution of the vacuum polarisation are discussed.

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Section: The Resonance Chiral Approximation and Its Results For The Cumentioning

confidence: 99%

Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data

Actis

Arbuzov²,

Balossini³

et al. 2010

Eur. Phys. J. C

Self Cite

306

179

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show abstract

“…in the standard Monte Carlo Generator for tau decays, TAUOLA [13]. However, in general these models include several ad-hoc assumptions, and can even have problems of consistency with QCD [14,15]. In addition, even when the agreement with experimental data can be very good, usually the model parameters can be hardly related to the underlying strong interaction theory.…”

Section: Introductionmentioning

confidence: 99%

Dispersive representation of the pion vector form factor in τ→ππν τ decays

Dumm

Roig

2013

Eur. Phys. J. C

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We propose a dispersive representation of the charged pion vector form factor that is consistent with chiral symmetry and fulfills the constraints imposed by analyticity and unitarity. Unknown parameters are fitted to the very precise data on τ − → π − π 0 ντ decays obtained by Belle, leading to a good description of the corresponding spectral function up to a ππ squared invariant mass s ≃ 1.5 GeV 2 . We determine the ρ(770) mass and width pole parameters and obtain the values of low energy observables. The significance of isospin breaking corrections is also discussed. For larger values of s, this representation is complemented with a phenomenological description to allow its implementation in the new TAUOLA hadronic currents.

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“…1 of Ref. [42]. The inclusion of final state interactions (FSI) in these decays is under study [40].…”

Section: Three Meson τ Decay Channelsmentioning

confidence: 99%