Evidence for the rare decay $B^{+} \to \bar Λp μ^{+} μ^{-}$
Abstract
A search for the rare decay $B^{+} \to \bar Λp μ^{+} μ^{-}$ is performed using proton-proton collision data recorded by the LHCb experiment at a center-of-mass energy of $\sqrt{s}= 13$ TeV, corresponding to an integrated luminosity of 5.4 fb$^-1$. An excess of events is found with respect to the background-only expectation, with a signal significance of 3.5 standard deviations, in the low invariant-mass region of $m(\bar Λp)
Fields of Study & Subjects
Particle physics theoretical and experimental studies
Quantum Chromodynamics and Particle Interactions
Particle Detector Development and Performance
Publication details
- Journal / source
- HAL
- Volume
- 137
- Issue
- 5
- Pages
- 051801
- Publication date
- 1 January 2026
- Language
- EN