Measurement of the branching fraction of B+ → τ+ντ decays with the semileptonic tagging method and the full Belle data sample

Belle Collaboration

Measurement of the branching fraction of B⁺ → τ⁺ν_τ decays with the semileptonic tagging method and the full Belle data sample

Belle Collaboration

University of Tabuk
The Graduate University for Advanced Studies
High Energy Accelerator Research Organization, Tsukuba
H. Niewodniczanski Institute of Nuclear Physics
The University of Tokyo
King Abdulaziz University
Novosibirsk State University
Nagoya University
Pacific Northwest National Laboratory
National Institute of Technology, Toyama College
Alikhanov Institute for Theoretical and Experimental Physics
Tata Institute of Fundamental Research
Indian Institute of Technology Bhubaneswar
The University of Sydney
Panjab University
Peking University
University of Melbourne
University of Hawai'i at Mānoa
German Electron Synchrotron
Swiss Federal Institute of Technology Lausanne
Indian Institute of Technology Madras
University of Cincinnati
Institute for High Energy Physics
Nara Women's University
Indian Institute of Technology Guwahati
National United University Taiwan
Wayne State University
Jožef Stefan Institute
University of Maribor
Karlsruhe Institute of Technology
Charles University
Fu Jen Catholic University
National Taiwan University
Max Planck Institute for Physics (Werner Heisenberg Institute)
National Central University

Research output: Contribution to conference › Paper › peer-review

Abstract

We report a measurement of the branching fraction of B⁺ → τ⁺ντ decays using a data sample of 772 × 10⁶BB pairs, collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e⁺e⁻ collider. We reconstruct the accompanying B meson in a semileptonic decay and detect the B⁺ → τ⁺ντ candidate in the recoiling event. We obtain a branching fraction of B(B⁺ → τ⁺ν_τ) = [1.25 ± 0.28(stat.) ± 0.27(syst.)] × 10⁻⁴. This result is in good agreement with previous measurements and the expectation from calculations based on the Standard Model.

Original language	English
State	Published - 2014
Event	8th International Workshop on the CKM Unitarity Triangle, CKM 2014 - Vienna, Austria Duration: 8 Sep 2014 → 12 Sep 2014

Conference

Conference	8th International Workshop on the CKM Unitarity Triangle, CKM 2014
Country/Territory	Austria
City	Vienna
Period	8/09/14 → 12/09/14

Cite this

@conference{78635255f20f4bf7b13ff3ae91cab04e,

title = "Measurement of the branching fraction of B+ → τ+ντ decays with the semileptonic tagging method and the full Belle data sample",

abstract = "We report a measurement of the branching fraction of B+ → τ+ντ decays using a data sample of 772 × 106BB pairs, collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider. We reconstruct the accompanying B meson in a semileptonic decay and detect the B+ → τ+ντ candidate in the recoiling event. We obtain a branching fraction of B(B+ → τ+ντ) = [1.25 ± 0.28(stat.) ± 0.27(syst.)] × 10−4. This result is in good agreement with previous measurements and the expectation from calculations based on the Standard Model.",

author = "\{Belle Collaboration\} and A. Abdesselam and I. Adachi and K. Adamczyk and H. Aihara and \{Al Said\}, S. and K. Arinstein and Y. Arita and Asner, \{D. M.\} and T. Aso and V. Aulchenko and T. Aushev and R. Ayad and T. Aziz and S. Bahinipati and Bakich, \{A. M.\} and A. Bala and Y. Ban and V. Bansal and E. Barberio and M. Barrett and W. Bartel and A. Bay and I. Bedny and P. Behera and M. Belhorn and K. Belous and V. Bhardwaj and B. Bhuyan and M. Bischofberger and S. Blyth and A. Bobrov and A. Bondar and G. Bonvicini and C. Bookwalter and C. Boulahouache and A. Bozek and M. Bra{\v c}ko and J. Brodzicka and O. Brovchenko and Browder, \{T. E.\} and D. {\v C}ervenkov and Chang, \{M. C.\} and P. Chang and Y. Chao and V. Chekelian and A. Chen and Chen, \{K. F.\} and P. Chen and Kim, \{H. J.\} and Kim, \{M. J.\}",

note = "Publisher Copyright: {\textcopyright} 2014 Technische Universitaet Wien. All rights reserved.; 8th International Workshop on the CKM Unitarity Triangle, CKM 2014 ; Conference date: 08-09-2014 Through 12-09-2014",

year = "2014",

language = "English",

}

TY - CONF

T1 - Measurement of the branching fraction of B+ → τ+ντ decays with the semileptonic tagging method and the full Belle data sample

AU - Belle Collaboration

AU - Abdesselam, A.

AU - Adachi, I.

AU - Adamczyk, K.

AU - Aihara, H.

AU - Al Said, S.

AU - Arinstein, K.

AU - Arita, Y.

AU - Asner, D. M.

AU - Aso, T.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Ayad, R.

AU - Aziz, T.

AU - Bahinipati, S.

AU - Bakich, A. M.

AU - Bala, A.

AU - Ban, Y.

AU - Bansal, V.

AU - Barberio, E.

AU - Barrett, M.

AU - Bartel, W.

AU - Bay, A.

AU - Bedny, I.

AU - Behera, P.

AU - Belhorn, M.

AU - Belous, K.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Bischofberger, M.

AU - Blyth, S.

AU - Bobrov, A.

AU - Bondar, A.

AU - Bonvicini, G.

AU - Bookwalter, C.

AU - Boulahouache, C.

AU - Bozek, A.

AU - Bračko, M.

AU - Brodzicka, J.

AU - Brovchenko, O.

AU - Browder, T. E.

AU - Červenkov, D.

AU - Chang, M. C.

AU - Chang, P.

AU - Chao, Y.

AU - Chekelian, V.

AU - Chen, A.

AU - Chen, K. F.

AU - Chen, P.

AU - Kim, H. J.

AU - Kim, M. J.

PY - 2014

Y1 - 2014

N2 - We report a measurement of the branching fraction of B+ → τ+ντ decays using a data sample of 772 × 106BB pairs, collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider. We reconstruct the accompanying B meson in a semileptonic decay and detect the B+ → τ+ντ candidate in the recoiling event. We obtain a branching fraction of B(B+ → τ+ντ) = [1.25 ± 0.28(stat.) ± 0.27(syst.)] × 10−4. This result is in good agreement with previous measurements and the expectation from calculations based on the Standard Model.

AB - We report a measurement of the branching fraction of B+ → τ+ντ decays using a data sample of 772 × 106BB pairs, collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider. We reconstruct the accompanying B meson in a semileptonic decay and detect the B+ → τ+ντ candidate in the recoiling event. We obtain a branching fraction of B(B+ → τ+ντ) = [1.25 ± 0.28(stat.) ± 0.27(syst.)] × 10−4. This result is in good agreement with previous measurements and the expectation from calculations based on the Standard Model.

UR - https://www.scopus.com/pages/publications/85070447764

M3 - Paper

AN - SCOPUS:85070447764

T2 - 8th International Workshop on the CKM Unitarity Triangle, CKM 2014

Y2 - 8 September 2014 through 12 September 2014

ER -

Measurement of the branching fraction of B⁺ → τ⁺ν_τ decays with the semileptonic tagging method and the full Belle data sample

Abstract

Conference

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