TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysProc.1.005
TI  - Implications of tau data for CP violation in K decays
PY  - 2019/02/18
UR  - https://www.scipost.org/SciPostPhysProc.1.005
JF  - SciPost Physics Proceedings
JA  - SciPost Phys. Proc.
VL  - 
IS  - 1
SP  - 005
A1  - Rodriguez Sanchez, Antonio
AB  - The $D=6$ contribution of the Operator Product Expansion (OPE) of the VV-AA correlator of quark currents can be related to hadronic matrix elements associated to CP violation in non-leptonic kaon decays. We use those relations to find an updated value for $\langle(\pi\pi)_{I=2}|\mathcal{Q}_{8}|K\rangle$ in the chiral limit using the updated ALEPH spectral function. Taking instead values of the matrix elements from the lattice to obtain the $D=6$ vacuum elements provides a new short-distance constraint that allows for an inclusive determination of $f_{\pi}$ and an updated value for the $D=8$ condensate.
ER  -

@Article{10.21468/SciPostPhysProc.1.005,
	title={{Implications of tau data for CP violation in K decays}},
	author={Antonio Rodríguez-Sánchez},
	journal={SciPost Phys. Proc.},
	pages={005},
	year={2019},
	publisher={SciPost},
	doi={10.21468/SciPostPhysProc.1.005},
	url={https://scipost.org/10.21468/SciPostPhysProc.1.005},
}