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- Title
Search for a massive invisible particle X in B → e X and B → μ X decays.
- Authors
Park, Chanseok
- Abstract
We present a search for a non-Standard-Model invisible particle X in the mass range 0.1-1.8 GeV/ c in B → e X and B → μ X decays. The results are obtained from a 711 fb data sample which corresponds to 772 × 10 $$B\bar B$$ pairs, collected at the Υ(4 S) resonance with the Belle detector at the KEKB e e collider. One B meson is fully reconstructed in a hadronic mode to determine the momentum of the lepton of the signal decay in the rest frame of the recoiling partner B meson. We find no evidence of a signal and set upper limits on the order of 10.
- Subjects
STANDARD model (Nuclear physics); ELECTRON-electron interactions; COLLIDERS (Nuclear physics); PARTICLES (Nuclear physics); HADRON decay
- Publication
Physics of Atomic Nuclei, 2017, Vol 80, Issue 5, p983
- ISSN
1063-7788
- Publication type
Article
- DOI
10.1134/S1063778817050209