Measurement of the branching fractions and the invariant mass distributions for τ^{-}→h^{-}h^{+}h^{-}ν

Belle CollaborationLee, M.Aihara, H.Arinstein, K.Aulchenko, V.Aushev, T.Bakich, A.Barberio, E.Bay, A.Belous, K.Bhardwaj, V.Bischofberger, M.Bondar, A.Bozek, A.Bračko, M.Browder, T.Chang, P.Chen, A.Chen, P.Cheon, B.Cho, I.-S.Choi, Y.Dalseno, J.Das, A.Dungel, W.Eidelman, S.Epifanov, D.Fujikawa, M.Gabyshev, N.Garmash, A.Ha, H.Haba, J.Han, B.-Y.Hasegawa, Y.Hayasaka, K.Hayashii, H.Hoshi, Y.Hou, W.-S.Hsiung, Y.Hyun, H.Iijima, T.Inami, K.Itoh, R.Iwasaki, M.Iwasaki, Y.Julius, T.Kah, D.Kang, J.Katayama, N.Kawasaki, T.Kiesling, C.Kim, H.Kim, H.Kim, J.Kim, S.Kim, Y.Kim, Y.Ko, B.Korpar, S.Križan, P.Krokovny, P.Kumita, T.Kuzmin, A.Kwon, Y.-J.Kyeong, S.-H.Lange, J.Lee, S.-H.Li, J.Liu, C.Liu, Y.Liventsev, D.Louvot, R.Macnaughton, J.Mandl, F.Mconie, S.Miyata, H.Miyazaki, Y.Mori, T.Nakano, E.Nakao, M.Nakazawa, H.Natkaniec, Z.Nishida, S.Nitoh, O.Ogawa, S.Ohshima, T.Okuno, S.Olsen, S.Pakhlov, P.Pakhlova, G.Palka, H.Park, C.Park, H.Park, H.Peak, L.Pestotnik, R.Petrič, M.Piilonen, L.Poluektov, A.Ryu, S.Sahoo, H.Sakai, K.Sakai, Y.Schneider, O.Schwartz, A.Senyo, K.Sevior, M.Shapkin, M.Shebalin, V.Shen, C.Shiu, J.-G.Shwartz, B.Singh, J.Smerkol, P.Sokolov, A.Solovieva, E.Stanič, S.Starič, M.Sumiyoshi, T.Taylor, G.Teramoto, Y.Tikhomirov, I.Uehara, S.Ueno, K.Unno, Y.Uno, S.Urquijo, P.Ushiroda, Y.Usov, Y.Varner, G.Vervink, K.Vinokurova, A.Wang, C.Wang, P.Watanabe, Y.Wedd, R.Won, E.Yabsley, B.Yamashita, Y.Yamauchi, M.Yuan, C.Zhang, C.Zhang, Z.Zhilich, V.Zhulanov, V.Zivko, T.Zupanc, A.Zyukova, O.2010-11-052010-11-052010-11-05201010.1103/PhysRevD.81.113007https://infoscience.epfl.ch/handle/20.500.14299/57139WOS:000279028000001We present a study of tau(-)->pi(-)pi(+)pi(-)nu(tau), tau(-) -> K-pi(+)pi(-)nu(tau), tau(-) -> K-K+ pi(-)nu(tau), and tau(-) -> K-K+K-nu(tau) decays using a 666 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric- energy e(+)e(-) collider at and near a center- of- mass energy of 10.58 GeV. The branching fractions are measured to be B(tau(-)->pi(-)pi(+)pi(-)nu(tau)) = (8.42 +/- 0.00(-0.25)(+0.26)) x 10(-2), B(tau(-)-> K-pi(+)pi(-)nu(tau)) = 3.30 +/- 0.01(-0.17)(+0.16)) x 10(-3), B(tau(-)-> K-K+pi(-)nu(tau)) = (1.55 +/- 0.01(-0.05)(+0.06)) x 10(-3), and B(tau(-)-> K-K+K-nu(tau)), = (3.29 +/- 0.17(-0.20)(+0.19)) x 10(-5), where the first uncertainty is statistical and the second is systematic. These branching fractions do not include contributions from modes in which a pi(+)pi(-) pair originates from a K-S(0) decay. We also present the unfolded invariant mass distributions for these decays.Current-AlgebraMonte-CarloBelleKaonsIdentificationKekbMeasurement of the branching fractions and the invariant mass distributions for τ^{-}→h^{-}h^{+}h^{-}ν_{τ} decaystext::journal::journal article::research article