The possibility of a dark sector weakly coupling to Standard Model (SM) particles through new light mediators is explored at the Belle II experiment. We present here the latest results from searches for a long-lived (pseudo-)scalar particle in rare B decays; for a di-tau resonance in $\mu\mu\tau\tau$ final states and a complementary Belle result on a dark leptophilic scalar in $\tau$ decays. Moreover we show the search for a Z$^{\prime}$ boson decaying invisibly and the most recent study of the search for a di-muon resonance in four-muon final states.
These studies are performed on samples from data collected by the Belle II detector during 2019-2021 data taking.
Volume 449 -
The European Physical Society Conference on High Energy Physics (EPS-HEP2023) -
Joint T03+T10 Dark Matter + Searches for New Physics
Recent results on dark sector physics at Belle II
Full text:
pdf
Pre-published on:
January 30, 2024
Published on:
March 21, 2024
Abstract
DOI: https://doi.org/10.22323/1.449.0046
How to cite
Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.
Open Access
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.