Measurement of the branching ratio of B ¯ →d (∗)τ- ν ¯ τ relative to B ¯ →d (∗) - ν ¯ decays with hadronic tagging at Belle

M. Huschle; T. Kuhr; M. Heck; P. Goldenzweig; A. Abdesselam; I. Adachi; K. Adamczyk; H. Aihara; S. Al Said; K. Arinstein; D. M. Asner; T. Aushev; R. Ayad; T. Aziz; I. Badhrees; A. M. Bakich; V. Bansal; E. Barberio; V. Bhardwaj; B. Bhuyan; J. Biswal; A. Bobrov; A. Bozek; M. Bračko; T. E. Browder; D. Červenkov; P. Chang; V. Chekelian; A. Chen; B. G. Cheon; K. Chilikin; R. Chistov; K. Cho; V. Chobanova; Y. Choi; D. Cinabro; J. Dalseno; M. Danilov; Z. DoleŽal; Z. Drásal; D. Dutta; S. Eidelman; D. Epifanov; H. Farhat; J. E. Fast; T. Ferber; A. Frey; B. G. Fulsom; V. Gaur; N. Gabyshev; A. Garmash; R. Gillard; R. Glattauer; Y. M. Goh; B. Golob; J. Grygier; P. Hamer; K. Hara; T. Hara; J. Hasenbusch; K. Hayasaka; H. Hayashii; X. H. He; M. Heider; A. Heller; T. Horiguchi; W. S. Hou; C. L. Hsu; T. Iijima; K. Inami; G. Inguglia; A. Ishikawa; R. Itoh; Y. Iwasaki; I. Jaegle; D. Joffe; K. K. Joo; T. Julius; K. H. Kang; E. Kato; P. Katrenko; T. Kawasaki; T. Keck; C. Kiesling; D. Y. Kim; H. J. Kim; J. B. Kim; J. H. Kim; K. T. Kim; M. J. Kim; S. H. Kim; Y. J. Kim; K. Kinoshita; B. R. Ko; N. Kobayashi; P. Kodyš; S. Korpar; P. KriŽan; P. Krokovny; T. Kumita; A. Kuzmin; Y. J. Kwon; I. S. Lee; C. Li; Y. Li; L. Li Gioi; J. Libby; D. Liventsev; P. Lukin; M. Masuda; D. Matvienko; K. Miyabayashi; H. Miyake; H. Miyata; R. Mizuk; G. B. Mohanty; S. Mohanty; A. Moll; H. K. Moon; R. Mussa; K. R. Nakamura; E. Nakano; M. Nakao; T. Nanut; M. Nayak; N. K. Nisar; S. Nishida; S. Ogawa; S. Okuno; C. Oswald; G. Pakhlova; B. Pal; C. W. Park; H. Park; T. K. Pedlar; L. Pesántez; R. Pestotnik; M. Petrič; L. E. Piilonen; C. Pulvermacher; E. RibeŽl; M. Ritter; A. Rostomyan; Y. Sakai; S. Sandilya; L. Santelj; T. Sanuki; Y. Sato; V. Savinov; O. Schneider; G. Schnell; C. Schwanda; A. J. Schwartz; D. Semmler; K. Senyo; O. Seon; M. E. Sevior; V. Shebalin; C. P. Shen; T. A. Shibata; J. G. Shiu; F. Simon; Y. S. Sohn; A. Sokolov; E. Solovieva; S. Stanič; M. Starič; M. Steder; J. Stypula; M. Sumihama; T. Sumiyoshi; U. Tamponi; Y. Teramoto; K. Trabelsi; V. Trusov; M. Uchida; T. Uglov; S. Uno; Y. Usov; C. Van Hulse; P. Vanhoefer; G. Varner; A. Vinokurova; V. Vorobyev; M. N. Wagner; C. H. Wang; M. Z. Wang; P. Wang; X. L. Wang; M. Watanabe; Y. Watanabe; E. Won; H. Yamamoto; J. Yamaoka; S. Yashchenko; H. Ye; Y. Yook; C. Z. Yuan; Y. Yusa; Z. P. Zhang; V. Zhilich; V. Zhulanov; A. Zupanc

doi:10.1103/PhysRevD.92.072014

Measurement of the branching ratio of B ¯ →d (∗)τ- ν ¯ τ relative to B ¯ →d (∗) - ν ¯ decays with hadronic tagging at Belle

M. Huschle, T. Kuhr, M. Heck, P. Goldenzweig, A. Abdesselam, I. Adachi, K. Adamczyk, H. Aihara, S. Al Said, K. Arinstein, D. M. Asner, T. Aushev, R. Ayad, T. Aziz, I. Badhrees, A. M. Bakich, V. Bansal, E. Barberio, V. Bhardwaj, B. BhuyanJ. Biswal, A. Bobrov, A. Bozek, M. Bračko, T. E. Browder, D. Červenkov, P. Chang, V. Chekelian, A. Chen, B. G. Cheon, K. Chilikin, R. Chistov, K. Cho, V. Chobanova, Y. Choi, D. Cinabro, J. Dalseno, M. Danilov, Z. DoleŽal, Z. Drásal, D. Dutta, S. Eidelman, D. Epifanov, H. Farhat, J. E. Fast, T. Ferber, A. Frey, B. G. Fulsom, V. Gaur, N. Gabyshev, A. Garmash, R. Gillard, R. Glattauer, Y. M. Goh, B. Golob, J. Grygier, P. Hamer, K. Hara, T. Hara, J. Hasenbusch, K. Hayasaka, H. Hayashii, X. H. He, M. Heider, A. Heller, T. Horiguchi, W. S. Hou, C. L. Hsu, T. Iijima, K. Inami, G. Inguglia, A. Ishikawa, R. Itoh, Y. Iwasaki, I. Jaegle, D. Joffe, K. K. Joo, T. Julius, K. H. Kang, E. Kato, P. Katrenko, T. Kawasaki, T. Keck, C. Kiesling, D. Y. Kim, H. J. Kim, J. B. Kim, J. H. Kim, K. T. Kim, M. J. Kim, S. H. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, N. Kobayashi, P. Kodyš, S. Korpar, P. KriŽan, P. Krokovny, T. Kumita, A. Kuzmin, Y. J. Kwon, I. S. Lee, C. Li, Y. Li, L. Li Gioi, J. Libby, D. Liventsev, P. Lukin, M. Masuda, D. Matvienko, K. Miyabayashi, H. Miyake, H. Miyata, R. Mizuk, G. B. Mohanty, S. Mohanty, A. Moll, H. K. Moon, R. Mussa, K. R. Nakamura, E. Nakano, M. Nakao, T. Nanut, M. Nayak, N. K. Nisar, S. Nishida, S. Ogawa, S. Okuno, C. Oswald, G. Pakhlova, B. Pal, C. W. Park, H. Park, T. K. Pedlar, L. Pesántez, R. Pestotnik, M. Petrič, L. E. Piilonen, C. Pulvermacher, E. RibeŽl, M. Ritter, A. Rostomyan, Y. Sakai, S. Sandilya, L. Santelj, T. Sanuki, Y. Sato, V. Savinov, O. Schneider, G. Schnell, C. Schwanda, A. J. Schwartz, D. Semmler, K. Senyo, O. Seon, M. E. Sevior, V. Shebalin, C. P. Shen, T. A. Shibata, J. G. Shiu, F. Simon, Y. S. Sohn, A. Sokolov, E. Solovieva, S. Stanič, M. Starič, M. Steder, J. Stypula, M. Sumihama, T. Sumiyoshi, U. Tamponi, Y. Teramoto, K. Trabelsi, V. Trusov, M. Uchida, T. Uglov, S. Uno, Y. Usov, C. Van Hulse, P. Vanhoefer, G. Varner, A. Vinokurova, V. Vorobyev, M. N. Wagner, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, M. Watanabe, Y. Watanabe, E. Won, H. Yamamoto, J. Yamaoka, S. Yashchenko, H. Ye, Y. Yook, C. Z. Yuan, Y. Yusa, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc

Department of Physics

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

616 Citations (Scopus)

Abstract

We report a measurement of the branching fraction ratios R(D(∗)) of B¯→D(∗)τ-ν¯τ relative to B¯→D(∗) -ν¯ (where =e or μ) using the full Belle data sample of 772×106BB¯ pairs collected at the (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 τ decays. The results are consistent with earlier measurements and do not show a significant deviation from the standard model prediction.

Original language	English
Article number	072014
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	92
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevD.92.072014
Publication status	Published - 2015 Oct 26

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

Access to Document

10.1103/PhysRevD.92.072014

Cite this

Huschle, M., Kuhr, T., Heck, M., Goldenzweig, P., Abdesselam, A., Adachi, I., Adamczyk, K., Aihara, H., Al Said, S., Arinstein, K., Asner, D. M., Aushev, T., Ayad, R., Aziz, T., Badhrees, I., Bakich, A. M., Bansal, V., Barberio, E., Bhardwaj, V., ... Zupanc, A. (2015). Measurement of the branching ratio of B ¯ →d (∗)τ- ν ¯ τ relative to B ¯ →d (∗) - ν ¯ decays with hadronic tagging at Belle. Physical Review D - Particles, Fields, Gravitation and Cosmology, 92(7), [072014]. https://doi.org/10.1103/PhysRevD.92.072014

Huschle, M, Kuhr, T, Heck, M, Goldenzweig, P, Abdesselam, A, Adachi, I, Adamczyk, K, Aihara, H, Al Said, S, Arinstein, K, Asner, DM, Aushev, T, Ayad, R, Aziz, T, Badhrees, I, Bakich, AM, Bansal, V, Barberio, E, Bhardwaj, V, Bhuyan, B, Biswal, J, Bobrov, A, Bozek, A, Bračko, M, Browder, TE, Červenkov, D, Chang, P, Chekelian, V, Chen, A, Cheon, BG, Chilikin, K, Chistov, R, Cho, K, Chobanova, V, Choi, Y, Cinabro, D, Dalseno, J, Danilov, M, DoleŽal, Z, Drásal, Z, Dutta, D, Eidelman, S, Epifanov, D, Farhat, H, Fast, JE, Ferber, T, Frey, A, Fulsom, BG, Gaur, V, Gabyshev, N, Garmash, A, Gillard, R, Glattauer, R, Goh, YM, Golob, B, Grygier, J, Hamer, P, Hara, K, Hara, T, Hasenbusch, J, Hayasaka, K, Hayashii, H, He, XH, Heider, M, Heller, A, Horiguchi, T, Hou, WS, Hsu, CL, Iijima, T, Inami, K, Inguglia, G, Ishikawa, A, Itoh, R, Iwasaki, Y, Jaegle, I, Joffe, D, Joo, KK, Julius, T, Kang, KH, Kato, E, Katrenko, P, Kawasaki, T, Keck, T, Kiesling, C, Kim, DY, Kim, HJ, Kim, JB, Kim, JH, Kim, KT, Kim, MJ, Kim, SH, Kim, YJ, Kinoshita, K, Ko, BR, Kobayashi, N, Kodyš, P, Korpar, S, KriŽan, P, Krokovny, P, Kumita, T, Kuzmin, A, Kwon, YJ, Lee, IS, Li, C, Li, Y, Li Gioi, L, Libby, J, Liventsev, D, Lukin, P, Masuda, M, Matvienko, D, Miyabayashi, K, Miyake, H, Miyata, H, Mizuk, R, Mohanty, GB, Mohanty, S, Moll, A, Moon, HK, Mussa, R, Nakamura, KR, Nakano, E, Nakao, M, Nanut, T, Nayak, M, Nisar, NK, Nishida, S, Ogawa, S, Okuno, S, Oswald, C, Pakhlova, G, Pal, B, Park, CW, Park, H, Pedlar, TK, Pesántez, L, Pestotnik, R, Petrič, M, Piilonen, LE, Pulvermacher, C, RibeŽl, E, Ritter, M, Rostomyan, A, Sakai, Y, Sandilya, S, Santelj, L, Sanuki, T, Sato, Y, Savinov, V, Schneider, O, Schnell, G, Schwanda, C, Schwartz, AJ, Semmler, D, Senyo, K, Seon, O, Sevior, ME, Shebalin, V, Shen, CP, Shibata, TA, Shiu, JG, Simon, F, Sohn, YS, Sokolov, A, Solovieva, E, Stanič, S, Starič, M, Steder, M, Stypula, J, Sumihama, M, Sumiyoshi, T, Tamponi, U, Teramoto, Y, Trabelsi, K, Trusov, V, Uchida, M, Uglov, T, Uno, S, Usov, Y, Van Hulse, C, Vanhoefer, P, Varner, G, Vinokurova, A, Vorobyev, V, Wagner, MN, Wang, CH, Wang, MZ, Wang, P, Wang, XL, Watanabe, M, Watanabe, Y, Won, E, Yamamoto, H, Yamaoka, J, Yashchenko, S, Ye, H, Yook, Y, Yuan, CZ, Yusa, Y, Zhang, ZP, Zhilich, V, Zhulanov, V & Zupanc, A 2015, 'Measurement of the branching ratio of B ¯ →d (∗)τ- ν ¯ τ relative to B ¯ →d (∗) - ν ¯ decays with hadronic tagging at Belle', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 92, no. 7, 072014. https://doi.org/10.1103/PhysRevD.92.072014

@article{b8dbf95fdfa4482ca051d36f94a75a61,

title = "Measurement of the branching ratio of B ¯ →d (∗)τ- ν ¯ τ relative to B ¯ →d (∗) - ν ¯ decays with hadronic tagging at Belle",

abstract = "We report a measurement of the branching fraction ratios R(D(∗)) of B¯→D(∗)τ-ν¯τ relative to B¯→D(∗) -ν¯ (where =e or μ) using the full Belle data sample of 772×106BB¯ pairs collected at the (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 τ decays. The results are consistent with earlier measurements and do not show a significant deviation from the standard model prediction.",

author = "M. Huschle and T. Kuhr and M. Heck and P. Goldenzweig and A. Abdesselam and I. Adachi and K. Adamczyk and H. Aihara and {Al Said}, S. and K. Arinstein and Asner, {D. M.} and T. Aushev and R. Ayad and T. Aziz and I. Badhrees and Bakich, {A. M.} and V. Bansal and E. Barberio and V. Bhardwaj and B. Bhuyan and J. Biswal and A. Bobrov 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 R. Chistov and K. Cho and V. Chobanova and Y. Choi and D. Cinabro and J. Dalseno and M. Danilov and Z. Dole{\v Z}al and Z. Dr{\'a}sal and D. Dutta and S. Eidelman and D. Epifanov and H. Farhat and Fast, {J. E.} and T. Ferber and A. Frey and Fulsom, {B. G.} and V. Gaur and N. Gabyshev and A. Garmash and R. Gillard and R. Glattauer and Goh, {Y. M.} and B. Golob and J. Grygier and P. Hamer and K. Hara and T. Hara and J. Hasenbusch and K. Hayasaka and H. Hayashii and He, {X. H.} and M. Heider and A. Heller and T. Horiguchi and Hou, {W. S.} and Hsu, {C. L.} and T. Iijima and K. Inami and G. Inguglia and A. Ishikawa and R. Itoh and Y. Iwasaki and I. Jaegle and D. Joffe and Joo, {K. K.} and T. Julius and Kang, {K. H.} and E. Kato and P. Katrenko and T. Kawasaki and T. Keck and C. Kiesling and Kim, {D. Y.} and Kim, {H. J.} and Kim, {J. B.} and Kim, {J. H.} and Kim, {K. T.} and Kim, {M. J.} and Kim, {S. H.} and Kim, {Y. J.} and K. Kinoshita and Ko, {B. R.} and N. Kobayashi and P. Kody{\v s} and S. Korpar and P. Kri{\v Z}an and P. Krokovny and T. Kumita and A. Kuzmin and Kwon, {Y. J.} and Lee, {I. S.} and C. Li and Y. Li and {Li Gioi}, L. and J. Libby and D. Liventsev and P. Lukin and M. Masuda and D. Matvienko and K. Miyabayashi and H. Miyake and H. Miyata and R. Mizuk and Mohanty, {G. B.} and S. Mohanty and A. Moll and Moon, {H. K.} and R. Mussa and Nakamura, {K. R.} and E. Nakano and M. Nakao and T. Nanut and M. Nayak and Nisar, {N. K.} and S. Nishida and S. Ogawa and S. Okuno and C. Oswald and G. Pakhlova and B. Pal and Park, {C. W.} and H. Park and Pedlar, {T. K.} and L. Pes{\'a}ntez and R. Pestotnik and M. Petri{\v c} and Piilonen, {L. E.} and C. Pulvermacher and E. Ribe{\v Z}l and M. Ritter and A. Rostomyan and Y. Sakai and S. Sandilya and L. Santelj and T. Sanuki and Y. Sato and V. Savinov and O. Schneider and G. Schnell and C. Schwanda and Schwartz, {A. J.} and D. Semmler and K. Senyo and O. Seon and Sevior, {M. E.} and V. Shebalin and Shen, {C. P.} and Shibata, {T. A.} and Shiu, {J. G.} and F. Simon and Sohn, {Y. S.} and A. Sokolov and E. Solovieva and S. Stani{\v c} and M. Stari{\v c} and M. Steder and J. Stypula and M. Sumihama and T. Sumiyoshi and U. Tamponi and Y. Teramoto and K. Trabelsi and V. Trusov and M. Uchida and T. Uglov and S. Uno and Y. Usov and {Van Hulse}, C. and P. Vanhoefer and G. Varner and A. Vinokurova and V. Vorobyev and Wagner, {M. N.} and Wang, {C. H.} and Wang, {M. Z.} and P. Wang and Wang, {X. L.} and M. Watanabe and Y. Watanabe and E. Won and H. Yamamoto and J. Yamaoka and S. Yashchenko and H. Ye and Y. Yook and Yuan, {C. Z.} and Y. Yusa and Zhang, {Z. P.} and V. Zhilich and V. Zhulanov and A. Zupanc",

note = "Publisher Copyright: {\textcopyright} 2015 American Physical Society. {\textcopyright} 2015 American Physical Society.",

year = "2015",

month = oct,

day = "26",

doi = "10.1103/PhysRevD.92.072014",

language = "English",

volume = "92",

journal = "Physical review D: Particles and fields",

issn = "0556-2821",

publisher = "American Institute of Physics Publising LLC",

number = "7",

}

TY - JOUR

T1 - Measurement of the branching ratio of B ¯ →d (∗)τ- ν ¯ τ relative to B ¯ →d (∗) - ν ¯ decays with hadronic tagging at Belle

AU - Huschle, M.

AU - Kuhr, T.

AU - Heck, M.

AU - Goldenzweig, P.

AU - Abdesselam, A.

AU - Adachi, I.

AU - Adamczyk, K.

AU - Aihara, H.

AU - Al Said, S.

AU - Arinstein, K.

AU - Asner, D. M.

AU - Aushev, T.

AU - Ayad, R.

AU - Aziz, T.

AU - Badhrees, I.

AU - Bakich, A. M.

AU - Bansal, V.

AU - Barberio, E.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Biswal, J.

AU - Bobrov, A.

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 - Chistov, R.

AU - Cho, K.

AU - Chobanova, V.

AU - Choi, Y.

AU - Cinabro, D.

AU - Dalseno, J.

AU - Danilov, M.

AU - DoleŽal, Z.

AU - Drásal, Z.

AU - Dutta, D.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Farhat, H.

AU - Fast, J. E.

AU - Ferber, T.

AU - Frey, A.

AU - Fulsom, B. G.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Gillard, R.

AU - Glattauer, R.

AU - Goh, Y. M.

AU - Golob, B.

AU - Grygier, J.

AU - Hamer, P.

AU - Hara, K.

AU - Hara, T.

AU - Hasenbusch, J.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - He, X. H.

AU - Heider, M.

AU - Heller, A.

AU - Horiguchi, T.

AU - Hou, W. S.

AU - Hsu, C. L.

AU - Iijima, T.

AU - Inami, K.

AU - Inguglia, G.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, Y.

AU - Jaegle, I.

AU - Joffe, D.

AU - Joo, K. K.

AU - Julius, T.

AU - Kang, K. H.

AU - Kato, E.

AU - Katrenko, P.

AU - Kawasaki, T.

AU - Keck, T.

AU - Kiesling, C.

AU - Kim, D. Y.

AU - Kim, H. J.

AU - Kim, J. B.

AU - Kim, J. H.

AU - Kim, K. T.

AU - Kim, M. J.

AU - Kim, S. H.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Ko, B. R.

AU - Kobayashi, N.

AU - Kodyš, P.

AU - Korpar, S.

AU - KriŽan, P.

AU - Krokovny, P.

AU - Kumita, T.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Lee, I. S.

AU - Li, C.

AU - Li, Y.

AU - Li Gioi, L.

AU - Libby, J.

AU - Liventsev, D.

AU - Lukin, P.

AU - Masuda, M.

AU - Matvienko, D.

AU - Miyabayashi, K.

AU - Miyake, H.

AU - Miyata, H.

AU - Mizuk, R.

AU - Mohanty, G. B.

AU - Mohanty, S.

AU - Moll, A.

AU - Moon, H. K.

AU - Mussa, R.

AU - Nakamura, K. R.

AU - Nakano, E.

AU - Nakao, M.

AU - Nanut, T.

AU - Nayak, M.

AU - Nisar, N. K.

AU - Nishida, S.

AU - Ogawa, S.

AU - Okuno, S.

AU - Oswald, C.

AU - Pakhlova, G.

AU - Pal, B.

AU - Park, C. W.

AU - Park, H.

AU - Pedlar, T. K.

AU - Pesántez, L.

AU - Pestotnik, R.

AU - Petrič, M.

AU - Piilonen, L. E.

AU - Pulvermacher, C.

AU - RibeŽl, E.

AU - Ritter, M.

AU - Rostomyan, A.

AU - Sakai, Y.

AU - Sandilya, S.

AU - Santelj, L.

AU - Sanuki, T.

AU - Sato, Y.

AU - Savinov, V.

AU - Schneider, O.

AU - Schnell, G.

AU - Schwanda, C.

AU - Schwartz, A. J.

AU - Semmler, D.

AU - Senyo, K.

AU - Seon, O.

AU - Sevior, M. E.

AU - Shebalin, V.

AU - Shen, C. P.

AU - Shibata, T. A.

AU - Shiu, J. G.

AU - Simon, F.

AU - Sohn, Y. S.

AU - Sokolov, A.

AU - Solovieva, E.

AU - Stanič, S.

AU - Starič, M.

AU - Steder, M.

AU - Stypula, J.

AU - Sumihama, M.

AU - Sumiyoshi, T.

AU - Tamponi, U.

AU - Teramoto, Y.

AU - Trabelsi, K.

AU - Trusov, V.

AU - Uchida, M.

AU - Uglov, T.

AU - Uno, S.

AU - Usov, Y.

AU - Van Hulse, C.

AU - Vanhoefer, P.

AU - Varner, G.

AU - Vinokurova, A.

AU - Vorobyev, V.

AU - Wagner, M. N.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Wang, P.

AU - Wang, X. L.

AU - Watanabe, M.

AU - Watanabe, Y.

AU - Won, E.

AU - Yamamoto, H.

AU - Yamaoka, J.

AU - Yashchenko, S.

AU - Ye, H.

AU - Yook, Y.

AU - Yuan, C. Z.

AU - Yusa, Y.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhulanov, V.

AU - Zupanc, A.

PY - 2015/10/26

Y1 - 2015/10/26

N2 - We report a measurement of the branching fraction ratios R(D(∗)) of B¯→D(∗)τ-ν¯τ relative to B¯→D(∗) -ν¯ (where =e or μ) using the full Belle data sample of 772×106BB¯ pairs collected at the (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 τ decays. The results are consistent with earlier measurements and do not show a significant deviation from the standard model prediction.

AB - We report a measurement of the branching fraction ratios R(D(∗)) of B¯→D(∗)τ-ν¯τ relative to B¯→D(∗) -ν¯ (where =e or μ) using the full Belle data sample of 772×106BB¯ pairs collected at the (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 τ decays. The results are consistent with earlier measurements and do not show a significant deviation from the standard model prediction.

UR - http://www.scopus.com/inward/record.url?scp=84945248300&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.92.072014

DO - 10.1103/PhysRevD.92.072014

M3 - Article

AN - SCOPUS:84945248300

VL - 92

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 0556-2821

IS - 7

M1 - 072014

ER -

Measurement of the branching ratio of B ¯ →d (∗)τ- ν ¯ τ relative to B ¯ →d (∗) - ν ¯ decays with hadronic tagging at Belle

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