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Search for the decay B0s ?p0p0 at Belle

Publikace na Matematicko-fyzikální fakulta |
2023

Tento text není v aktuálním jazyce dostupný. Zobrazuje se verze "en".Abstrakt

We report the results of the first search for the decay B0s

→ π0π0 using 121.4 fb−1 of data collected at the

ϒð5SÞ resonance with the Belle detector at the KEKB asymmetric-energy eþe− collider. We observe no signal and set a 90% confidence level upper limit of 7.7 × 10−6 on the B0s

→ π0π0 decay branching fraction.