Search for B- →μ- ν μ Decays at the Belle Experiment

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Search for B- →μ- ν μ Decays at the Belle Experiment. / The BELLE collaboration.

In: Physical Review Letters, Vol. 121, No. 3, 031801, 18.07.2018.

Research output: Contribution to journal › Article › peer-review

Harvard

The BELLE collaboration 2018, 'Search for B- →μ- ν μ Decays at the Belle Experiment', Physical Review Letters, vol. 121, no. 3, 031801. https://doi.org/10.1103/PhysRevLett.121.031801

APA

The BELLE collaboration (2018). Search for B- →μ- ν μ Decays at the Belle Experiment. Physical Review Letters, 121(3), [031801]. https://doi.org/10.1103/PhysRevLett.121.031801

Vancouver

The BELLE collaboration. Search for B- →μ- ν μ Decays at the Belle Experiment. Physical Review Letters. 2018 Jul 18;121(3):031801. doi: 10.1103/PhysRevLett.121.031801

Author

The BELLE collaboration. / Search for B- →μ- ν μ Decays at the Belle Experiment. In: Physical Review Letters. 2018 ; Vol. 121, No. 3.

BibTeX

@article{213fe9e74f464b2ba5520d474acd0e22,

title = "Search for B- →μ- ν μ Decays at the Belle Experiment",

abstract = "We report the results of a search for the rare, purely leptonic decay B-→μ-ν μ performed with a 711 fb-1 data sample that contains 772×106 BB pairs, collected near the (4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. The signal events are selected based on the presence of a high momentum muon and the topology of the rest of the event showing properties of a generic B-meson decay, as well as the missing energy and momentum being consistent with the hypothesis of a neutrino from the signal decay. We find a 2.4 standard deviation excess above background including systematic uncertainties, which corresponds to a branching fraction of B(B-→μ-νμ)=(6.46±2.22±1.60)×10-7 or a frequentist 90% confidence level interval on the B-→μ-ν μ branching fraction of [2.9,10.7]×10-7.",

keywords = "MONTE-CARLO, IDENTIFICATION, KEKB",

author = "{The BELLE collaboration} and A. Sibidanov and Varvell, {K. E.} and I. Adachi and H. Aihara and {Al Said}, S. and Asner, {D. M.} and T. Aushev and R. Ayad and V. Babu and I. Badhrees and S. Bahinipati and Bakich, {A. M.} and V. Bansal and E. Barberio and P. Behera and B. Bhuyan and J. Biswal and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and D. {\v C}ervenkov and P. Chang and V. Chekelian and A. Chen and Cheon, {B. G.} and K. Chilikin and K. Cho and Choi, {S. K.} and Y. Choi and D. Cinabro and T. Czank and N. Dash and {Di Carlo}, S. and Z. Dole{\v Z}al and Z. Dr{\'a}sal and D. Dutta and S. Eidelman and D. Epifanov and Fast, {J. E.} and T. Ferber and Fulsom, {B. G.} and V. Gaur and N. Gabyshev and A. Garmash and P. Goldenzweig and D. Greenwald and V. Shebalin and V. Vorobyev and V. Zhilich and V. Zhulanov",

note = "Publisher Copyright: {\textcopyright} 2018 authors. Published by the American Physical Society.",

year = "2018",

month = jul,

day = "18",

doi = "10.1103/PhysRevLett.121.031801",

language = "English",

volume = "121",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "3",

}

RIS

TY - JOUR

T1 - Search for B- →μ- ν μ Decays at the Belle Experiment

AU - The BELLE collaboration

AU - Sibidanov, A.

AU - Varvell, K. E.

AU - Adachi, I.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Aushev, T.

AU - Ayad, R.

AU - Babu, V.

AU - Badhrees, I.

AU - Bahinipati, S.

AU - Bakich, A. M.

AU - Bansal, V.

AU - Barberio, E.

AU - Behera, P.

AU - Bhuyan, B.

AU - Biswal, J.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Červenkov, D.

AU - Chang, P.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, K.

AU - Choi, S. K.

AU - Choi, Y.

AU - Cinabro, D.

AU - Czank, T.

AU - Dash, N.

AU - Di Carlo, S.

AU - DoleŽal, Z.

AU - Drásal, Z.

AU - Dutta, D.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Fast, J. E.

AU - Ferber, T.

AU - Fulsom, B. G.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Goldenzweig, P.

AU - Greenwald, D.

AU - Shebalin, V.

AU - Vorobyev, V.

AU - Zhilich, V.

AU - Zhulanov, V.

PY - 2018/7/18

Y1 - 2018/7/18

N2 - We report the results of a search for the rare, purely leptonic decay B-→μ-ν μ performed with a 711 fb-1 data sample that contains 772×106 BB pairs, collected near the (4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. The signal events are selected based on the presence of a high momentum muon and the topology of the rest of the event showing properties of a generic B-meson decay, as well as the missing energy and momentum being consistent with the hypothesis of a neutrino from the signal decay. We find a 2.4 standard deviation excess above background including systematic uncertainties, which corresponds to a branching fraction of B(B-→μ-νμ)=(6.46±2.22±1.60)×10-7 or a frequentist 90% confidence level interval on the B-→μ-ν μ branching fraction of [2.9,10.7]×10-7.

AB - We report the results of a search for the rare, purely leptonic decay B-→μ-ν μ performed with a 711 fb-1 data sample that contains 772×106 BB pairs, collected near the (4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. The signal events are selected based on the presence of a high momentum muon and the topology of the rest of the event showing properties of a generic B-meson decay, as well as the missing energy and momentum being consistent with the hypothesis of a neutrino from the signal decay. We find a 2.4 standard deviation excess above background including systematic uncertainties, which corresponds to a branching fraction of B(B-→μ-νμ)=(6.46±2.22±1.60)×10-7 or a frequentist 90% confidence level interval on the B-→μ-ν μ branching fraction of [2.9,10.7]×10-7.

KW - MONTE-CARLO

KW - IDENTIFICATION

KW - KEKB

UR - http://www.scopus.com/inward/record.url?scp=85050497022&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.121.031801

DO - 10.1103/PhysRevLett.121.031801

M3 - Article

AN - SCOPUS:85050497022

VL - 121

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 3

M1 - 031801

ER -

ID: 15919471