Measurement of the branching ratio of B0 →d?+τ- ν τ relative to B 0 →d?+? ?ν? decays with a semileptonic tagging method

Sato, Y. et al.; Iijima, T.; Adamczyk, K.; Aihara, H.; Asner, D.M.; Atmacan, H.; Aushev, T.; Ayad, R.; Aziz, T.; Babu, V.; PAO-TI CHANG; WEI-SHU HOU; MIN-ZU WANG; Sato, Y., Iijima, T., Adamczyk, K., Aihara, H., Asner, D.M., Atmacan, H., Aushev, T., Ayad, R., Aziz, T., Babu, V., Badhrees, I., Bakich, A.M., Bansal, V., Behera, P., Bhardwaj, V., Bhuyan, B., Biswal, J., Bonvicini, G., Bozek, A., Bra?ko, M., ?ervenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B.G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Danilov, M., Dash, N., Di Carlo, S., Dole?al, Z., Dutta, D., Eidelman, S., Epifanov, D., Farhat, H., Fast, J.E., Ferber, T., Fulsom, B.G., Gaur, V., Gabyshev, N., Garmash, A., Goldenzweig, P., Golob, B., Greenwald, D., Hara, K., Hara, T., Hasenbusch, J., Hayasaka, K., Hayashii, H., Hirose, S., Horiguchi, T., Hou, W.-S., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, Y., Jaegle, I., Jeon, H.B., Joffe, D., Julius, T., Kang, K.H., Kato, Y., Katrenko, P., Kawasaki, T., Kim, D.Y., Kim, J.B., Kim, K.T., Kim, M.J., Kim, S.H., Kim, Y.J., Kinoshita, K., Kody?, P., Korpar, S., Kotchetkov, D., Krokovny, P., Kuhr, T., Kumar, R., Kwon, Y.-J., Lange, J.S., Li, C.H., Li, L., Li, Y., Li Gioi, L., Libby, J., Liventsev, D., Luo, T., Masuda, M., Matsuda, T., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G.B., Moll, A., Moon, H.K., Nakamura, K.R., Nakano, E., Nakao, M., Nanut, T., Nath, K.J., Natkaniec, Z., Nayak, M., Negishi, K., Nisar, N.K., Nishida, S., Ogawa, S., Okuno, S., Olsen, S.L., Onuki, Y., Pakhlov, P., Pakhlova, G., Pal, B., Park, C.-S., Paul, S., Pedlar, T.K., Pes?ntez, L., Pestotnik, R., Petri?, M., Piilonen, L.E., Purohit, M.V., Rauch, J., Rostomyan, A., Rozanska, M., Sakai, Y., Sandilya, S., Santelj, L., Savinov, V., Schl?ter, T., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A.J., Seino, Y., Senyo, K., Seon, O., Sevior, M.E., Shebalin, V., Shen, C.P., Shibata, T.-A., Shiu, J.-G., Shwartz, B., Simon, F., Solovieva, E., Stani?, S., Stari?, M., Strube, J.F., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tenchini, F., Trabelsi, K., Uchida, M., Uno, S., Urquijo, P., Ushiroda, Y., Usov, Y., Van Hulse, C., Varner, G., Vinokurova, A., Vorobyev, V., Wang, C.H., Wang, M.-Z., Wang, P., Watanabe, Y., Williams, K.M., Won, E., Yamamoto, H., Yamaoka, J., Yamashita, Y., Yelton, J., Yook, Y., Yuan, C.Z., Yusa, Y., Zhang, Z.P., Zhilich, V., Zhukova, V., Zhulanov, V., Zupanc, A.

doi:10.1103/PhysRevD.94.072007

Measurement of the branching ratio of B0 →d?+τ- ν τ relative to B 0 →d?+? ?ν? decays with a semileptonic tagging method

Journal

Physical Review D

Journal Volume

94

Journal Issue

7

Date Issued

2016

Author(s)

Sato, Y. et al.

Iijima, T.

Adamczyk, K.

Aihara, H.

Asner, D.M.

Atmacan, H.

Aushev, T.

Ayad, R.

Aziz, T.

Babu, V.

PAO-TI CHANG

WEI-SHU HOU

MIN-ZU WANG

DOI

10.1103/PhysRevD.94.072007

URI

https://scholars.lib.ntu.edu.tw/handle/123456789/440704

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84993990715&doi=10.1103%2fPhysRevD.94.072007&partnerID=40&md5=4ce8dc7b4b2a0346d782cc6f2265bc21

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.

Type

journal article

Measurement of the branching ratio of B0 →d?+τ- ν τ relative to B 0 →d?+? ?ν? decays with a semileptonic tagging method

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