arxiv: 2511.02619 · v2 · submitted 2025-11-04 · ✦ hep-ex
Recognition: unknown
Search for K_{S(L)}⁰ rightarrow π⁺π⁻μ⁺μ⁻ decays at LHCb
show 1177 more authors
Are you an author? Sign in to claim this paper.
read the original abstract
A search for $K_{\mathrm{S(L)}}^{0} \rightarrow \pi^{+}\pi^{-}\mu^{+}\mu^{-}$ decays is performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of $13\,\mathrm{TeV}$, corresponding to an integrated luminosity of $5.4\,\mathrm{fb^{-1}}$. No $K_{\mathrm{S(L)}}^{0} \rightarrow \pi^{+}\pi^{-}\mu^{+}\mu^{-}$ signals are found and upper limits are set for the first time on the branching fractions $\mathcal{B}(K_\text{S}^{0} \rightarrow \pi^{+}\pi^{-}\mu^{+}\mu^{-}) < 1.4 \times 10^{-9}$ and $\mathcal{B}(K_\text{L}^{0} \rightarrow \pi^{+}\pi^{-}\mu^{+}\mu^{-}) < 6.6 \times 10^{-7}$, at the 90% confidence level.
This paper has not been read by Pith yet.
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.