Measurement of the $\tau$ lepton polarization and $R(D^*)$ in the decay 
$\bar{B} \rightarrow D^* \tau^- \bar{\nu}_\tau$ with one-prong hadronic $\tau$ 
decays at Belle

Hirose, S.; Iijima, T.; Adachi, I.; Adamczyk, K.; Aihara, H.; Al Said, S.; Asner, D. M.; Atmacan, H.; Aushev, T.; Ayad, R.; Aziz, T.; Babu, V.; Badhrees, I.; Bakich, A. M.; Bansal, V.; Berger, M.; Bhardwaj, V.; Bhuyan, B.; Biswal, J.; Bondar, A.; Bozek, A.; Bračko, M.; Browder, T. E.; Červenkov, D.; Chang, M. -C.; Chang, P.; Chekelian, V.; Chen, A.; Cheon, B. G.; Chilikin, K.; Cho, K.; Choi, S. -K.; Choi, Y.; Choudhury, S.; Cinabro, D.; Czank, T.; Dash, N.; Di Carlo, S.; Doležal, Z.; Dutta, D.; Eidelman, S.; Fast, J. E.; Ferber, T.; Fulsom, B. G.; Garg, R.; Gaur, V.; Gabyshev, N.; Garmash, A.; Gelb, M.; Giri, A.; Goldenzweig, P.; Golob, B.; Guan, Y.; Guido, E.; Haba, J.; Hara, K.; Hayasaka, K.; Hayashii, H.; Hedges, M. T.; Higuchi, T.; Hou, W. -S.; Hsu, C. -L.; Inami, K.; Inguglia, G.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Jaegle, I.; Jeon, H. B.; Jin, Y.; Julius, T.; Kang, K. H.; Karyan, G.; Kawasaki, T.; Kim, D. Y.; Kim, J. B.; Kim, S. H.; Kim, Y. J.; Kinoshita, K.; Kodyš, P.; Korpar, S.; Kotchetkov, D.; Križan, P.; Kroeger, R.; Krokovny, P.; Kuhr, T.; Kulasiri, R.; Kumar, R.; Kuzmin, A.; Kwon, Y. -J.; Lange, J. S.; Lee, I. S.; Li, L. K.; Li, Y.; Li Gioi, L.; Libby, J.; Liventsev, D.; Lubej, M.; Matsuda, T.; Miyabayashi, K.; Miyata, H.; Mohanty, G. B.; Mohanty, S.; Moon, H. K.; Mori, T.; Mussa, R.; Nakamura, K. R.; Nakao, M.; Nanut, T.; Nath, K. J.; Natkaniec, Z.; Niiyama, M.; Nisar, N. K.; Nishida, S.; Ogawa, S.; Okuno, S.; Ono, H.; Pal, B.; Pardi, S.; Park, C. W.; Park, H.; Paul, S.; Pestotnik, R.; Piilonen, L. E.; Popov, V.; Ritter, M.; Rostomyan, A.; Rozanska, M.; Sakai, Y.; Salehi, M.; Sandilya, S.; Sato, Y.; Schneider, O.; Schnell, G.; Schwanda, C.; Schwartz, A. J.; Seino, Y.; Senyo, K.; Sevior, M. E.; Shebalin, V.; Shibata, T. -A.; Shimizu, N.; Shiu, J. -G.; Simon, F.; Sokolov, A.; Solovieva, E.; Starič, M.; Strube, J. F.; Stypula, J.; Sumihama, M.; Sumisawa, K.; Sumiyoshi, T.; Takizawa, M.; Tamponi, U.; Tanida, K.; Tenchini, F.; Trabelsi, K.; Uchida, M.; Uglov, T.; Uno, S.; Urquijo, P.; Van Hulse, C.; Varner, G.; Varvell, K. E.; Vorobyev, V.; Vossen, A.; Wang, C. H.; Wang, M. -Z.; Wang, P.; Wang, X. L.; Wehle, S.; Widmann, E.; Won, E.; Yamamoto, H.; Yamashita, Y.; Ye, H.; Yuan, C. Z.; Yusa, Y.; Zakharov, S.; Zhang, Z. P.; Zhilich, V.; Zhukova, V.; Zhulanov, V.; Zupanc, A.

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Measurement of the $\tau$ lepton polarization and $R(D^*)$ in the decay $\bar{B} \rightarrow D^* \tau^- \bar{\nu}_\tau$ with one-prong hadronic $\tau$ decays at Belle

Hirose, S., Iijima, T., Adachi, I., Adamczyk, K., Aihara, H., Al Said, S., et al. (2018). Measurement of the $\tau$ lepton polarization and $R(D^*)$ in the decay $\bar{B} \rightarrow D^* \tau^- \bar{\nu}_\tau$ with one-prong hadronic $\tau$ decays at Belle. Physical Review D, (97), 012004. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2017-321.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0003-F8AB-5 Version Permalink: https://hdl.handle.net/21.11116/0000-0003-F8AC-4

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Hirose, S.¹, Author
Iijima, T.¹, Author
Adachi, I.¹, Author
Adamczyk, K.¹, Author
Aihara, H.¹, Author
Al Said, S.¹, Author
Asner, D. M.¹, Author
Atmacan, H.¹, Author
Aushev, T.¹, Author
Ayad, R.¹, Author
Aziz, T.¹, Author
Babu, V.¹, Author
Badhrees, I.¹, Author
Bakich, A. M.¹, Author
Bansal, V.¹, Author
Berger, M.¹, Author
Bhardwaj, V.¹, Author
Bhuyan, B.¹, Author
Biswal, J.¹, Author
Bondar, A.¹, Author
Bozek, A.¹, AuthorBračko, M.¹, AuthorBrowder, T. E.¹, AuthorČervenkov, D.¹, AuthorChang, M. -C.¹, AuthorChang, P.¹, AuthorChekelian, V.¹, AuthorChen, A.¹, AuthorCheon, B. G.¹, AuthorChilikin, K.¹, AuthorCho, K.¹, AuthorChoi, S. -K.¹, AuthorChoi, Y.¹, AuthorChoudhury, S.¹, AuthorCinabro, D.¹, AuthorCzank, T.¹, AuthorDash, N.¹, AuthorDi Carlo, S.¹, AuthorDoležal, Z.¹, AuthorDutta, D.¹, AuthorEidelman, S.¹, AuthorFast, J. E.¹, AuthorFerber, T.¹, AuthorFulsom, B. G.¹, AuthorGarg, R.¹, AuthorGaur, V.¹, AuthorGabyshev, N.¹, AuthorGarmash, A.¹, AuthorGelb, M.¹, AuthorGiri, A.¹, AuthorGoldenzweig, P.¹, AuthorGolob, B.¹, AuthorGuan, Y.¹, AuthorGuido, E.¹, AuthorHaba, J.¹, AuthorHara, K.¹, AuthorHayasaka, K.¹, AuthorHayashii, H.¹, AuthorHedges, M. T.¹, AuthorHiguchi, T.¹, AuthorHou, W. -S.¹, AuthorHsu, C. -L.¹, AuthorInami, K.¹, AuthorInguglia, G.¹, AuthorIshikawa, A.¹, AuthorItoh, R.¹, AuthorIwasaki, M.¹, AuthorJaegle, I.¹, AuthorJeon, H. B.¹, AuthorJin, Y.¹, AuthorJulius, T.¹, AuthorKang, K. H.¹, AuthorKaryan, G.¹, AuthorKawasaki, T.¹, AuthorKim, D. Y.¹, AuthorKim, J. B.¹, AuthorKim, S. H.¹, AuthorKim, Y. J.¹, AuthorKinoshita, K.¹, AuthorKodyš, P.¹, AuthorKorpar, S.¹, AuthorKotchetkov, D.¹, AuthorKrižan, P.¹, AuthorKroeger, R.¹, AuthorKrokovny, P.¹, AuthorKuhr, T.¹, AuthorKulasiri, R.¹, AuthorKumar, R.¹, AuthorKuzmin, A.¹, AuthorKwon, Y. -J.¹, AuthorLange, J. S.¹, AuthorLee, I. S.¹, AuthorLi, L. K.¹, AuthorLi, Y.¹, AuthorLi Gioi, L.¹, AuthorLibby, J.¹, AuthorLiventsev, D.¹, AuthorLubej, M.¹, AuthorMatsuda, T.¹, AuthorMiyabayashi, K.¹, AuthorMiyata, H.¹, AuthorMohanty, G. B.¹, AuthorMohanty, S.¹, AuthorMoon, H. K.¹, AuthorMori, T.¹, AuthorMussa, R.¹, AuthorNakamura, K. R.¹, AuthorNakao, M.¹, AuthorNanut, T.¹, AuthorNath, K. J.¹, AuthorNatkaniec, Z.¹, AuthorNiiyama, M.¹, AuthorNisar, N. K.¹, AuthorNishida, S.¹, AuthorOgawa, S.¹, AuthorOkuno, S.¹, AuthorOno, H.¹, AuthorPal, B.¹, AuthorPardi, S.¹, AuthorPark, C. W.¹, AuthorPark, H.¹, AuthorPaul, S.¹, AuthorPestotnik, R.¹, AuthorPiilonen, L. E.¹, AuthorPopov, V.¹, AuthorRitter, M.¹, AuthorRostomyan, A.¹, AuthorRozanska, M.¹, AuthorSakai, Y.¹, AuthorSalehi, M.¹, AuthorSandilya, S.¹, AuthorSato, Y.¹, AuthorSchneider, O.¹, AuthorSchnell, G.¹, AuthorSchwanda, C.¹, AuthorSchwartz, A. J.¹, AuthorSeino, Y.¹, AuthorSenyo, K.¹, AuthorSevior, M. E.¹, AuthorShebalin, V.¹, AuthorShibata, T. -A.¹, AuthorShimizu, N.¹, AuthorShiu, J. -G.¹, AuthorSimon, F.¹, AuthorSokolov, A.¹, AuthorSolovieva, E.¹, AuthorStarič, M.¹, AuthorStrube, J. F.¹, AuthorStypula, J.¹, AuthorSumihama, M.¹, AuthorSumisawa, K.¹, AuthorSumiyoshi, T.¹, AuthorTakizawa, M.¹, AuthorTamponi, U.¹, AuthorTanida, K.¹, AuthorTenchini, F.¹, AuthorTrabelsi, K.¹, AuthorUchida, M.¹, AuthorUglov, T.¹, AuthorUno, S.¹, AuthorUrquijo, P.¹, AuthorVan Hulse, C.¹, AuthorVarner, G.¹, AuthorVarvell, K. E.¹, AuthorVorobyev, V.¹, AuthorVossen, A.¹, AuthorWang, C. H.¹, AuthorWang, M. -Z.¹, AuthorWang, P.¹, AuthorWang, X. L.¹, AuthorWehle, S.¹, AuthorWidmann, E.¹, AuthorWon, E.¹, AuthorYamamoto, H.¹, AuthorYamashita, Y.¹, AuthorYe, H.¹, AuthorYuan, C. Z.¹, AuthorYusa, Y.¹, AuthorZakharov, S.¹, AuthorZhang, Z. P.¹, AuthorZhilich, V.¹, AuthorZhukova, V.¹, AuthorZhulanov, V.¹, AuthorZupanc, A.¹, Author more..

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1Max Planck Institute for Physics, Max Planck Society and Cooperation Partners, ou_2253650

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Free keywords: Belle II

Abstract: With the full data sample of $772 \times 10^6$ $B{\bar B}$ pairs recorded by the Belle detector at the KEKB electron-positron collider, the decay $\bar{B} \rightarrow D^* \tau^- \bar{\nu}_\tau$ is studied with the hadronic $\tau$ decays $\tau^- \rightarrow \pi^- \nu_\tau$ and $\tau^- \rightarrow \rho^- \nu_\tau$. The $\tau$ polarization $P_\tau(D^*)$ in two-body hadronic $\tau$ decays is measured, as well as the ratio of the branching fractions $R(D^{*}) = \mathcal{B}(\bar {B} \rightarrow D^* \tau^- \bar{\nu}_\tau) / \mathcal{B}(\bar{B} \rightarrow D^* \ell^- \bar{\nu}_\ell)$, where $\ell^-$ denotes an electron or a muon. Our results, $P_\tau(D^*) = -0.38 \pm 0.51 {\rm (stat)} ^{+0.21}_{-0.16} {\rm (syst)}$ and $R(D^*) = 0.270 \pm 0.035{\rm (stat)} ^{+0.028}_{-0.025}{\rm (syst)}$, are consistent with the theoretical predictions of the Standard Model. The polarization values of $P_\tau(D^*) > +0.5$ are excluded at the 90\% confidence level.

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Dates: Date issued: 2018

Publication Status: Issued

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Identifiers: eDoc: 746976
URI: https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2017-321
URI: http://arXiv.org/abs/arxiv:1709.00129
URI: http://dx.doi.org/10.1103/PhysRevD.97.012004
URI: https://inspirehep.net/search?p=find+eprint+1709.00129
Other: MPP-2017-321

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Title: Physical Review D

Alternative Title : Phys.Rev.D

Source Genre: Journal

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Pages: - Volume / Issue: (97) Sequence Number: - Start / End Page: 012004 Identifier: -