Journal Article/Contribution to a conference proceedings/Contribution to a book

PUBDB-2025-00459

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Split-even approach to the rare kaon decay $K \to \pi \ell^+ \ell^-$

Hodgson, R. R. (Corresponding author)DESY* ; Gülpers, V. ; Hill, R. ; Portelli, A.

2024
SISSA Trieste

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Please use a persistent id in citations: doi:10.22323/1.466.0258  doi:10.3204/PUBDB-2025-00459

Report No.: DESY-25-016

Abstract: In recent years the rare kaon decay has been computed directly at the physical point. However, this calculation is currently limited by stochastic noise stemming from a light and charm quark loop GIM subtraction. The split-even approach is an alternative estimator for such loop differences, and has shown a large variance reduction in certain quantities. We present an investigation into the use of the split-even estimator in the calculation of the rare kaon decay.

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Contributing Institute(s):

1. Zeuthen Particle PhysicsTheory (Z_ZPPT)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. NewPhysLat - Search for new physics through lattice simulations (757646) (757646)
3. EuroPLEx - European network for Particle physics, Lattice field theory and Extreme computing (813942) (813942)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2024

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Database coverage:
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