@article{530813c265b3465eaa07ea3439f821d5,

title = "Measurement of the branching ratio of B0 →d∗+τ- ν τ relative to B 0 →d∗+ℓ −νℓ decays with a semileptonic tagging method",

abstract = "We report a measurement of the ratio R(D∗)=B(B0→D∗+τ-ντ)/B(B0→D∗+ν), where denotes an electron or a muon. The results are based on a data sample containing 772×106 BB pairs recorded at the (4S) resonance with the Belle detector at the KEKB e+e- collider. We select a sample of B0B0 pairs by reconstructing both B mesons in semileptonic decays to D∗ ±. We measure R(D∗)=0.302±0.030(stat)±0.011(syst), which is within 1.6σ of the Standard Model theoretical expectation, where the standard deviation σ includes systematic uncertainties. We use this measurement to constrain several scenarios of new physics in a model-independent approach.",

author = "{Belle Collaboration} and Y. Sato and T. Iijima and K. Adamczyk and H. Aihara and Asner, {D. M.} and H. Atmacan and T. Aushev and R. Ayad and T. Aziz and V. Babu and I. Badhrees and Bakich, {A. M.} and V. Bansal and P. Behera and V. Bhardwaj and B. Bhuyan and J. Biswal and G. Bonvicini and A. Bozek and M. Bra{\v c}ko and D. {\v C}ervenkov and P. Chang 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 M. Danilov and N. Dash and {Di Carlo}, S. and Z. Dole{\v Z}al and D. Dutta and S. Eidelman and D. Epifanov and H. Farhat and Fast, {J. E.} and T. Ferber and Fulsom, {B. G.} and V. Gaur and N. Gabyshev and A. Garmash and P. Goldenzweig and B. Golob and D. Greenwald and K. Hara and E. Won",

note = "Publisher Copyright: {\textcopyright} 2016 American Physical Society.",

year = "2016",

month = oct,

day = "27",

doi = "10.1103/PhysRevD.94.072007",

language = "English",

volume = "94",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "7",

}