@article{3030f5f5a18f4865bda96a4af7d1ccd9,
title = "Search for a massive invisible particle X0 in B+ →e+X0 and B+ →μ+X0 decays",
abstract = "We present a search for a non-Standard-Model invisible particle X0 in the mass range 0.1-1.8 GeV/c2 in B+→e+X0 and B+→μ+X0 decays. The results are obtained from a 711 fb-1 data sample that corresponds to 772×106BB pairs, collected at the Ψ(4S) 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 10-6.",
author = "{Belle Collaboration} and Park, {C. S.} and Kwon, {Y. J.} and I. Adachi and H. Aihara and Asner, {D. M.} and T. Aushev and V. Babu and I. Badhrees and Bakich, {A. M.} and E. Barberio and P. Behera and V. Bhardwaj and J. Biswal and G. Bonvicini and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and D. {\v C}ervenkov and V. Chekelian and A. Chen and Cheon, {B. G.} and K. Chilikin and R. Chistov and K. Cho and V. Chobanova and Y. Choi and D. Cinabro and J. Dalseno and M. Danilov and N. Dash and Z. Dole{\v Z}al and D. Dutta and S. Eidelman and H. Farhat and Fast, {J. E.} and T. Ferber and Fulsom, {B. G.} and V. Gaur and N. Gabyshev and A. Garmash and R. Gillard and Goh, {Y. M.} and P. Goldenzweig and O. Grzymkowska and T. Hara and K. Hayasaka and H. Hayashii and M. Heck and Hou, {W. S.} and Kim, {M. J.}",
note = "Publisher Copyright: {\textcopyright} 2016 American Physical Society.",
year = "2016",
month = jul,
day = "18",
doi = "10.1103/PhysRevD.94.012003",
language = "English",
volume = "94",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "1",
}