Search for a massive invisible particle X0 in B+ →e+X0 and B+ →μ+X0 decays

Belle Collaboration

Research output: Contribution to journalArticle

3 Citations (Scopus)

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.

Original languageEnglish
Article number012003
JournalPhysical Review D
Volume94
Issue number1
DOIs
Publication statusPublished - 2016 Jul 18

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mesons
recoilings
decay
leptons
momentum
detectors

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

@article{e3a683d641c540b5a15415cdb7faf295,
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 Youngjoon Kwon 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. Bračko and Browder, {T. E.} and D. Červenkov 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. DoleŽal 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 T. Iijima",
year = "2016",
month = "7",
day = "18",
doi = "10.1103/PhysRevD.94.012003",
language = "English",
volume = "94",
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Search for a massive invisible particle X0 in B+ →e+X0 and B+ →μ+X0 decays. / Belle Collaboration.

In: Physical Review D, Vol. 94, No. 1, 012003, 18.07.2016.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Search for a massive invisible particle X0 in B+ →e+X0 and B+ →μ+X0 decays

AU - Belle Collaboration

AU - Park, C. S.

AU - Kwon, Youngjoon

AU - Adachi, I.

AU - Aihara, H.

AU - Asner, D. M.

AU - Aushev, T.

AU - Babu, V.

AU - Badhrees, I.

AU - Bakich, A. M.

AU - Barberio, E.

AU - Behera, P.

AU - Bhardwaj, V.

AU - Biswal, J.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Červenkov, D.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Chistov, R.

AU - Cho, K.

AU - Chobanova, V.

AU - Choi, Y.

AU - Cinabro, D.

AU - Dalseno, J.

AU - Danilov, M.

AU - Dash, N.

AU - DoleŽal, Z.

AU - Dutta, D.

AU - Eidelman, S.

AU - Farhat, H.

AU - Fast, J. E.

AU - Ferber, T.

AU - Fulsom, B. G.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Gillard, R.

AU - Goh, Y. M.

AU - Goldenzweig, P.

AU - Grzymkowska, O.

AU - Hara, T.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Heck, M.

AU - Hou, W. S.

AU - Iijima, T.

PY - 2016/7/18

Y1 - 2016/7/18

N2 - 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.

AB - 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.

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U2 - 10.1103/PhysRevD.94.012003

DO - 10.1103/PhysRevD.94.012003

M3 - Article

VL - 94

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 1

M1 - 012003

ER -