TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysProc.16.007
TI  - Reconciling the FOPT and CIPT predictions for the hadronic tau decay rate
PY  - 2025/07/14
UR  - https://scipost.org/SciPostPhysProc.16.007
JF  - SciPost Physics Proceedings
JA  - SciPost Phys. Proc.
VL  - 
IS  - 16
SP  - 007
A1  - Benitez-Rathgeb, Miguel A.
AU  - Boito, Diogo
AU  - Hoang, André
AU  - Jamin, Matthias
AB  - In a recent work it was suggested that the discrepancy observed in the perturbation series behavior of the $\tau$ hadronic decay rate determined in the FOPT and CIPT approaches can be explained from a different infrared sensitivity inherent to both methods, assuming that the major source of the discrepancy is the asymptotic behavior of the series related to the gluon condensate renormalon. This implies that the predictions of both methods may be reconciled in infrared subtracted perturbation theory. In this talk we explore this implication concretely in the large-$\beta_0$ approximation, where the perturbation series is known to all orders, using a renormalon-free scheme for the gluon condensate.
ER  -

@Article{10.21468/SciPostPhysProc.16.007,
	title={{Reconciling the FOPT and CIPT predictions for the hadronic tau decay rate}},
	author={Miguel A. Benitez-Rathgeb and Diogo Boito and Andre H. Hoang and Matthias Jamin},
	journal={SciPost Phys. Proc.},
	pages={007},
	year={2025},
	publisher={SciPost},
	doi={10.21468/SciPostPhysProc.16.007},
	url={https://scipost.org/10.21468/SciPostPhysProc.16.007},
}