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

Belle Collaboration

Research output: Contribution to conferencePaper

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.

Original languageEnglish (US)
StatePublished - Jan 1 2014
Event8th International Workshop on the CKM Unitarity Triangle, CKM 2014 - Vienna, Austria
Duration: Sep 8 2014Sep 12 2014

Conference

Conference8th International Workshop on the CKM Unitarity Triangle, CKM 2014
CountryAustria
CityVienna
Period9/8/149/12/14

Fingerprint

Tagging
Branching
Decay
Mesons
Standard Model
Detector
Energy

ASJC Scopus subject areas

  • Mathematics (miscellaneous)

Cite this

Belle Collaboration (2014). Measurement of the branching fraction of B+ → τ+ντ decays with the semileptonic tagging method and the full Belle data sample. Paper presented at 8th International Workshop on the CKM Unitarity Triangle, CKM 2014, Vienna, Austria.

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

2014. Paper presented at 8th International Workshop on the CKM Unitarity Triangle, CKM 2014, Vienna, Austria.

Research output: Contribution to conferencePaper

Belle Collaboration 2014, 'Measurement of the branching fraction of B+ → τ+ντ decays with the semileptonic tagging method and the full Belle data sample', Paper presented at 8th International Workshop on the CKM Unitarity Triangle, CKM 2014, Vienna, Austria, 9/8/14 - 9/12/14.
Belle Collaboration. Measurement of the branching fraction of B+ → τ+ντ decays with the semileptonic tagging method and the full Belle data sample. 2014. Paper presented at 8th International Workshop on the CKM Unitarity Triangle, CKM 2014, Vienna, Austria.
Belle Collaboration. / Measurement of the branching fraction of B+ → τ+ντ decays with the semileptonic tagging method and the full Belle data sample. Paper presented at 8th International Workshop on the CKM Unitarity Triangle, CKM 2014, Vienna, Austria.
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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. Bračko and J. Brodzicka and O. Brovchenko and Browder, {T. E.} and D. Červenkov and Chang, {M. C.} and P. Chang and Y. Chao and V. Chekelian and A. Chen and Chen, {K. F.} and P. Chen and Cheon, {B. G.} and K. Chilikin",
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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 - Cheon, B. G.

AU - Chilikin, K.

PY - 2014/1/1

Y1 - 2014/1/1

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.

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