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  4. Measurement of the branching ratio of (B)over-bar -> D-(*())tau(-)(nu)over-bar(tau) relative to (B)over-bar -> D(*)l(-)(nu)over-bar(l) decays with hadronic tagging at Belle
 
research article

Measurement of the branching ratio of (B)over-bar -> D-(())tau(-)(nu)over-bar(tau) relative to (B)over-bar -> D()l(-)(nu)over-bar(l) decays with hadronic tagging at Belle

Huschle, M.
•
Kuhr, T.
•
Heck, M.
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2015
Physical Review D [1970-2015]

We report a measurement of the branching fraction ratios R(D)(()()) of (B) over bar -> D-(())tau(-)(nu) over bar (tau) relative to (B) over bar -> D-(())l(-)(nu) over barl (where l = e or mu) using the full Belle data sample of 772 x 10(6)B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The measured values are R(D) = 0.375 +/- 0.064(stat) +/- 0.026(syst) and R(D) = 0.293 +/- 0.038 (stat) +/- 0.015 (syst). The analysis uses hadronic reconstruction of the tag-side B meson and purely leptonic t decays. The results are consistent with earlier measurements and do not show a significant deviation from the standard model prediction.

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Type
research article
DOI
10.1103/PhysRevD.92.072014
Web of Science ID

WOS:000363526700003

Author(s)
Huschle, M.
Kuhr, T.
Heck, M.
Goldenzweig, P.
Abdesselam, A.
Adachi, I.
Adamczyk, K.
Aihara, H.
Al Said, S.
Arinstein, K.
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Corporate authors
Belle Collaboration
Date Issued

2015

Publisher

American Physical Society

Published in
Physical Review D [1970-2015]
Volume

92

Issue

7

Article Number

072014

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPHE  
Available on Infoscience
December 2, 2015
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/121069
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