Measurements of branching fractions of τ lepton decays with one or more KS0

S. Ryu, I. Adachi, H. Aihara, D. M. Asner, V. Aulchenko, T. Aushev, A. M. Bakich, A. Bala, B. Bhuyan, A. Bobrov, A. Bondar, G. Bonvicini, A. Bozek, M. Bračko, T. E. Browder, D. Červenkov, V. Chekelian, B. G. Cheon, K. Chilikin, R. Chistov & 130 others K. Cho, V. Chobanova, S. K. Choi, Y. Choi, J. Dalseno, Z. DoleŽal, D. Dutta, S. Eidelman, D. Epifanov, H. Farhat, J. E. Fast, T. Ferber, V. Gaur, N. Gabyshev, S. Ganguly, A. Garmash, R. Gillard, Y. M. Goh, B. Golob, J. Haba, K. Hayasaka, H. Hayashii, Y. Hoshi, W. S. Hou, T. Iijima, K. Inami, A. Ishikawa, T. Iwashita, T. Julius, E. Kato, C. Kiesling, B. H. Kim, D. Y. Kim, J. B. Kim, J. H. Kim, K. T. Kim, M. J. Kim, S. K. Kim, Y. J. Kim, B. R. Ko, P. Kodyš, P. KriŽan, P. Krokovny, T. Kuhr, A. Kuzmin, Y. J. Kwon, S. H. Lee, J. Li, J. Libby, D. Liventsev, P. Lukin, J. Macnaughton, D. Matvienko, K. Miyabayashi, H. Miyata, R. Mizuk, A. Moll, T. Mori, R. Mussa, E. Nakano, M. Nakao, H. Nakazawa, M. Nayak, E. Nedelkovska, N. K. Nisar, S. Nishida, O. Nitoh, S. Okuno, S. L. Olsen, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, H. K. Park, T. K. Pedlar, M. Petrič, L. E. Piilonen, M. Ritter, M. Röhrken, A. Rostomyan, H. Sahoo, T. Saito, Y. Sakai, L. Santelj, T. Sanuki, V. Savinov, O. Schneider, G. Schnell, C. Schwanda, D. Semmler, O. Seon, V. Shebalin, C. P. Shen, T. A. Shibata, J. G. Shiu, B. Shwartz, A. Sibidanov, F. Simon, Y. S. Sohn, A. Sokolov, E. Solovieva, S. Stanič, M. Starič, T. Sumiyoshi, U. Tamponi, G. Tatishvili, Y. Teramoto, M. Uchida, S. Uehara, Y. Unno, S. Uno, C. Van Hulse, P. Vanhoefer, G. Varner, A. Vinokurova, V. Vorobyev, M. N. Wagner, C. H. Wang, P. Wang, M. Watanabe, Y. Watanabe, Eunil Won, Y. Yamashita, S. Yashchenko, Y. Yook, C. Z. Yuan, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

We report measurements of branching fractions of τ lepton decays to final states with a KS0 meson using a 669fb-1 data sample accumulated with the Belle detector at the KEKB asymmetric-energy e+e- collider. The inclusive branching fraction is measured to be B(τ-→KS0X-ντ)=(9. 15±0.01±0.15)×10-3, where X- can be anything; the exclusive branching fractions are B(τ-→π-KS0ντ)=(4.16±0. 01±0.08)×10-3, B(τ-→K-KS0ντ)=(7.40±0. 07±0.27)×10-4, B(τ-→π-KS0π0ντ)=(1. 93±0.02±0.07)×10-3, B(τ-→K-KS0π0ντ)=(7. 48±0.10±0.37)×10-4, B(τ-→π-KS0KS0ντ)=(2. 33±0.03±0.09)×10-4, B(τ-→π-KS0KS0π0ντ) =(2.00±0.22±0.20)×10-5, where the first uncertainty is statistical and the second is systematic. For each mode, the accuracy is improved over that of pre-B-factory measurements by a factor ranging from five to ten. In τ-→π-KS0KS0π0ντ decays, clear signals for the intermediate states τ-→π-f1(1285)ντ and τ-→K*- KS0π0ντ are observed.

Original languageEnglish
Article number072009
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume89
Issue number7
DOIs
Publication statusPublished - 2014 Apr 9

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  • Nuclear and High Energy Physics

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Measurements of branching fractions of τ lepton decays with one or more KS0. / Ryu, S.; Adachi, I.; Aihara, H.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Bala, A.; Bhuyan, B.; Bobrov, A.; Bondar, A.; Bonvicini, G.; Bozek, A.; Bračko, M.; Browder, T. E.; Červenkov, D.; Chekelian, V.; Cheon, B. G.; Chilikin, K.; Chistov, R.; Cho, K.; Chobanova, V.; Choi, S. K.; Choi, Y.; Dalseno, J.; DoleŽal, Z.; Dutta, D.; Eidelman, S.; Epifanov, D.; Farhat, H.; Fast, J. E.; Ferber, T.; Gaur, V.; Gabyshev, N.; Ganguly, S.; Garmash, A.; Gillard, R.; Goh, Y. M.; Golob, B.; Haba, J.; Hayasaka, K.; Hayashii, H.; Hoshi, Y.; Hou, W. S.; Iijima, T.; Inami, K.; Ishikawa, A.; Iwashita, T.; Julius, T.; Kato, E.; Kiesling, C.; Kim, B. H.; Kim, D. Y.; Kim, J. B.; Kim, J. H.; Kim, K. T.; Kim, M. J.; Kim, S. K.; Kim, Y. J.; Ko, B. R.; Kodyš, P.; KriŽan, P.; Krokovny, P.; Kuhr, T.; Kuzmin, A.; Kwon, Y. J.; Lee, S. H.; Li, J.; Libby, J.; Liventsev, D.; Lukin, P.; Macnaughton, J.; Matvienko, D.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Moll, A.; Mori, T.; Mussa, R.; Nakano, E.; Nakao, M.; Nakazawa, H.; Nayak, M.; Nedelkovska, E.; Nisar, N. K.; Nishida, S.; Nitoh, O.; Okuno, S.; Olsen, S. L.; Pakhlov, P.; Pakhlova, G.; Park, C. W.; Park, H.; Park, H. K.; Pedlar, T. K.; Petrič, M.; Piilonen, L. E.; Ritter, M.; Röhrken, M.; Rostomyan, A.; Sahoo, H.; Saito, T.; Sakai, Y.; Santelj, L.; Sanuki, T.; Savinov, V.; Schneider, O.; Schnell, G.; Schwanda, C.; Semmler, D.; Seon, O.; Shebalin, V.; Shen, C. P.; Shibata, T. A.; Shiu, J. G.; Shwartz, B.; Sibidanov, A.; Simon, F.; Sohn, Y. S.; Sokolov, A.; Solovieva, E.; Stanič, S.; Starič, M.; Sumiyoshi, T.; Tamponi, U.; Tatishvili, G.; Teramoto, Y.; Uchida, M.; Uehara, S.; Unno, Y.; Uno, S.; Van Hulse, C.; Vanhoefer, P.; Varner, G.; Vinokurova, A.; Vorobyev, V.; Wagner, M. N.; Wang, C. H.; Wang, P.; Watanabe, M.; Watanabe, Y.; Won, Eunil; Yamashita, Y.; Yashchenko, S.; Yook, Y.; Yuan, C. Z.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 89, No. 7, 072009, 09.04.2014.

Research output: Contribution to journalArticle

Ryu, S, Adachi, I, Aihara, H, Asner, DM, Aulchenko, V, Aushev, T, Bakich, AM, Bala, A, Bhuyan, B, Bobrov, A, Bondar, A, Bonvicini, G, Bozek, A, Bračko, M, Browder, TE, Červenkov, D, Chekelian, V, Cheon, BG, Chilikin, K, Chistov, R, Cho, K, Chobanova, V, Choi, SK, Choi, Y, Dalseno, J, DoleŽal, Z, Dutta, D, Eidelman, S, Epifanov, D, Farhat, H, Fast, JE, Ferber, T, Gaur, V, Gabyshev, N, Ganguly, S, Garmash, A, Gillard, R, Goh, YM, Golob, B, Haba, J, Hayasaka, K, Hayashii, H, Hoshi, Y, Hou, WS, Iijima, T, Inami, K, Ishikawa, A, Iwashita, T, Julius, T, Kato, E, Kiesling, C, Kim, BH, Kim, DY, Kim, JB, Kim, JH, Kim, KT, Kim, MJ, Kim, SK, Kim, YJ, Ko, BR, Kodyš, P, KriŽan, P, Krokovny, P, Kuhr, T, Kuzmin, A, Kwon, YJ, Lee, SH, Li, J, Libby, J, Liventsev, D, Lukin, P, Macnaughton, J, Matvienko, D, Miyabayashi, K, Miyata, H, Mizuk, R, Moll, A, Mori, T, Mussa, R, Nakano, E, Nakao, M, Nakazawa, H, Nayak, M, Nedelkovska, E, Nisar, NK, Nishida, S, Nitoh, O, Okuno, S, Olsen, SL, Pakhlov, P, Pakhlova, G, Park, CW, Park, H, Park, HK, Pedlar, TK, Petrič, M, Piilonen, LE, Ritter, M, Röhrken, M, Rostomyan, A, Sahoo, H, Saito, T, Sakai, Y, Santelj, L, Sanuki, T, Savinov, V, Schneider, O, Schnell, G, Schwanda, C, Semmler, D, Seon, O, Shebalin, V, Shen, CP, Shibata, TA, Shiu, JG, Shwartz, B, Sibidanov, A, Simon, F, Sohn, YS, Sokolov, A, Solovieva, E, Stanič, S, Starič, M, Sumiyoshi, T, Tamponi, U, Tatishvili, G, Teramoto, Y, Uchida, M, Uehara, S, Unno, Y, Uno, S, Van Hulse, C, Vanhoefer, P, Varner, G, Vinokurova, A, Vorobyev, V, Wagner, MN, Wang, CH, Wang, P, Watanabe, M, Watanabe, Y, Won, E, Yamashita, Y, Yashchenko, S, Yook, Y, Yuan, CZ, Zhang, ZP, Zhilich, V, Zhulanov, V & Zupanc, A 2014, 'Measurements of branching fractions of τ lepton decays with one or more KS0', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 89, no. 7, 072009. https://doi.org/10.1103/PhysRevD.89.072009
Ryu, S. ; Adachi, I. ; Aihara, H. ; Asner, D. M. ; Aulchenko, V. ; Aushev, T. ; Bakich, A. M. ; Bala, A. ; Bhuyan, B. ; Bobrov, A. ; Bondar, A. ; Bonvicini, G. ; Bozek, A. ; Bračko, M. ; Browder, T. E. ; Červenkov, D. ; Chekelian, V. ; Cheon, B. G. ; Chilikin, K. ; Chistov, R. ; Cho, K. ; Chobanova, V. ; Choi, S. K. ; Choi, Y. ; Dalseno, J. ; DoleŽal, Z. ; Dutta, D. ; Eidelman, S. ; Epifanov, D. ; Farhat, H. ; Fast, J. E. ; Ferber, T. ; Gaur, V. ; Gabyshev, N. ; Ganguly, S. ; Garmash, A. ; Gillard, R. ; Goh, Y. M. ; Golob, B. ; Haba, J. ; Hayasaka, K. ; Hayashii, H. ; Hoshi, Y. ; Hou, W. S. ; Iijima, T. ; Inami, K. ; Ishikawa, A. ; Iwashita, T. ; Julius, T. ; Kato, E. ; Kiesling, C. ; Kim, B. H. ; Kim, D. Y. ; Kim, J. B. ; Kim, J. H. ; Kim, K. T. ; Kim, M. J. ; Kim, S. K. ; Kim, Y. J. ; Ko, B. R. ; Kodyš, P. ; KriŽan, P. ; Krokovny, P. ; Kuhr, T. ; Kuzmin, A. ; Kwon, Y. J. ; Lee, S. H. ; Li, J. ; Libby, J. ; Liventsev, D. ; Lukin, P. ; Macnaughton, J. ; Matvienko, D. ; Miyabayashi, K. ; Miyata, H. ; Mizuk, R. ; Moll, A. ; Mori, T. ; Mussa, R. ; Nakano, E. ; Nakao, M. ; Nakazawa, H. ; Nayak, M. ; Nedelkovska, E. ; Nisar, N. K. ; Nishida, S. ; Nitoh, O. ; Okuno, S. ; Olsen, S. L. ; Pakhlov, P. ; Pakhlova, G. ; Park, C. W. ; Park, H. ; Park, H. K. ; Pedlar, T. K. ; Petrič, M. ; Piilonen, L. E. ; Ritter, M. ; Röhrken, M. ; Rostomyan, A. ; Sahoo, H. ; Saito, T. ; Sakai, Y. ; Santelj, L. ; Sanuki, T. ; Savinov, V. ; Schneider, O. ; Schnell, G. ; Schwanda, C. ; Semmler, D. ; Seon, O. ; Shebalin, V. ; Shen, C. P. ; Shibata, T. A. ; Shiu, J. G. ; Shwartz, B. ; Sibidanov, A. ; Simon, F. ; Sohn, Y. S. ; Sokolov, A. ; Solovieva, E. ; Stanič, S. ; Starič, M. ; Sumiyoshi, T. ; Tamponi, U. ; Tatishvili, G. ; Teramoto, Y. ; Uchida, M. ; Uehara, S. ; Unno, Y. ; Uno, S. ; Van Hulse, C. ; Vanhoefer, P. ; Varner, G. ; Vinokurova, A. ; Vorobyev, V. ; Wagner, M. N. ; Wang, C. H. ; Wang, P. ; Watanabe, M. ; Watanabe, Y. ; Won, Eunil ; Yamashita, Y. ; Yashchenko, S. ; Yook, Y. ; Yuan, C. Z. ; Zhang, Z. P. ; Zhilich, V. ; Zhulanov, V. ; Zupanc, A. / Measurements of branching fractions of τ lepton decays with one or more KS0. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2014 ; Vol. 89, No. 7.
@article{e762d4e228db4709bda4442204f7f4fd,
title = "Measurements of branching fractions of τ lepton decays with one or more KS0",
abstract = "We report measurements of branching fractions of τ lepton decays to final states with a KS0 meson using a 669fb-1 data sample accumulated with the Belle detector at the KEKB asymmetric-energy e+e- collider. The inclusive branching fraction is measured to be B(τ-→KS0X-ντ)=(9. 15±0.01±0.15)×10-3, where X- can be anything; the exclusive branching fractions are B(τ-→π-KS0ντ)=(4.16±0. 01±0.08)×10-3, B(τ-→K-KS0ντ)=(7.40±0. 07±0.27)×10-4, B(τ-→π-KS0π0ντ)=(1. 93±0.02±0.07)×10-3, B(τ-→K-KS0π0ντ)=(7. 48±0.10±0.37)×10-4, B(τ-→π-KS0KS0ντ)=(2. 33±0.03±0.09)×10-4, B(τ-→π-KS0KS0π0ντ) =(2.00±0.22±0.20)×10-5, where the first uncertainty is statistical and the second is systematic. For each mode, the accuracy is improved over that of pre-B-factory measurements by a factor ranging from five to ten. In τ-→π-KS0KS0π0ντ decays, clear signals for the intermediate states τ-→π-f1(1285)ντ and τ-→K*- KS0π0ντ are observed.",
author = "S. Ryu and I. Adachi and H. Aihara and Asner, {D. M.} and V. Aulchenko and T. Aushev and Bakich, {A. M.} and A. Bala and B. Bhuyan and A. Bobrov and A. Bondar and G. Bonvicini and A. Bozek and M. Bračko and Browder, {T. E.} and D. Červenkov and V. Chekelian and Cheon, {B. G.} and K. Chilikin and R. Chistov and K. Cho and V. Chobanova and Choi, {S. K.} and Y. Choi and J. Dalseno and Z. DoleŽal and D. Dutta and S. Eidelman and D. Epifanov and H. Farhat and Fast, {J. E.} and T. Ferber and V. Gaur and N. Gabyshev and S. Ganguly and A. Garmash and R. Gillard and Goh, {Y. M.} and B. Golob and J. Haba and K. Hayasaka and H. Hayashii and Y. Hoshi and Hou, {W. S.} and T. Iijima and K. Inami and A. Ishikawa and T. Iwashita and T. Julius and E. Kato and C. Kiesling and Kim, {B. H.} and Kim, {D. Y.} and Kim, {J. B.} and Kim, {J. H.} and Kim, {K. T.} and Kim, {M. J.} and Kim, {S. K.} and Kim, {Y. J.} and Ko, {B. R.} and P. Kodyš and P. KriŽan and P. Krokovny and T. Kuhr and A. Kuzmin and Kwon, {Y. J.} and Lee, {S. H.} and J. Li and J. Libby and D. Liventsev and P. Lukin and J. Macnaughton and D. Matvienko and K. Miyabayashi and H. Miyata and R. Mizuk and A. Moll and T. Mori and R. Mussa and E. Nakano and M. Nakao and H. Nakazawa and M. Nayak and E. Nedelkovska and Nisar, {N. K.} and S. Nishida and O. Nitoh and S. Okuno and Olsen, {S. L.} and P. Pakhlov and G. Pakhlova and Park, {C. W.} and H. Park and Park, {H. K.} and Pedlar, {T. K.} and M. Petrič and Piilonen, {L. E.} and M. Ritter and M. R{\"o}hrken and A. Rostomyan and H. Sahoo and T. Saito and Y. Sakai and L. Santelj and T. Sanuki and V. Savinov and O. Schneider and G. Schnell and C. Schwanda and D. Semmler and O. Seon and V. Shebalin and Shen, {C. P.} and Shibata, {T. A.} and Shiu, {J. G.} and B. Shwartz and A. Sibidanov and F. Simon and Sohn, {Y. S.} and A. Sokolov and E. Solovieva and S. Stanič and M. Starič and T. Sumiyoshi and U. Tamponi and G. Tatishvili and Y. Teramoto and M. Uchida and S. Uehara and Y. Unno and S. Uno 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 P. Wang and M. Watanabe and Y. Watanabe and Eunil Won and Y. Yamashita and S. Yashchenko and Y. Yook and Yuan, {C. Z.} and Zhang, {Z. P.} and V. Zhilich and V. Zhulanov and A. Zupanc",
year = "2014",
month = "4",
day = "9",
doi = "10.1103/PhysRevD.89.072009",
language = "English",
volume = "89",
journal = "Physical review D: Particles and fields",
issn = "0556-2821",
publisher = "American Institute of Physics Publising LLC",
number = "7",

}

TY - JOUR

T1 - Measurements of branching fractions of τ lepton decays with one or more KS0

AU - Ryu, S.

AU - Adachi, I.

AU - Aihara, H.

AU - Asner, D. M.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Bala, A.

AU - Bhuyan, B.

AU - Bobrov, A.

AU - Bondar, A.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Červenkov, D.

AU - Chekelian, V.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Chistov, R.

AU - Cho, K.

AU - Chobanova, V.

AU - Choi, S. K.

AU - Choi, Y.

AU - Dalseno, J.

AU - DoleŽal, Z.

AU - Dutta, D.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Farhat, H.

AU - Fast, J. E.

AU - Ferber, T.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Ganguly, S.

AU - Garmash, A.

AU - Gillard, R.

AU - Goh, Y. M.

AU - Golob, B.

AU - Haba, J.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Iijima, T.

AU - Inami, K.

AU - Ishikawa, A.

AU - Iwashita, T.

AU - Julius, T.

AU - Kato, E.

AU - Kiesling, C.

AU - Kim, B. H.

AU - Kim, D. Y.

AU - Kim, J. B.

AU - Kim, J. H.

AU - Kim, K. T.

AU - Kim, M. J.

AU - Kim, S. K.

AU - Kim, Y. J.

AU - Ko, B. R.

AU - Kodyš, P.

AU - KriŽan, P.

AU - Krokovny, P.

AU - Kuhr, T.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Lee, S. H.

AU - Li, J.

AU - Libby, J.

AU - Liventsev, D.

AU - Lukin, P.

AU - Macnaughton, J.

AU - Matvienko, D.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Mizuk, R.

AU - Moll, A.

AU - Mori, T.

AU - Mussa, R.

AU - Nakano, E.

AU - Nakao, M.

AU - Nakazawa, H.

AU - Nayak, M.

AU - Nedelkovska, E.

AU - Nisar, N. K.

AU - Nishida, S.

AU - Nitoh, O.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Park, C. W.

AU - Park, H.

AU - Park, H. K.

AU - Pedlar, T. K.

AU - Petrič, M.

AU - Piilonen, L. E.

AU - Ritter, M.

AU - Röhrken, M.

AU - Rostomyan, A.

AU - Sahoo, H.

AU - Saito, T.

AU - Sakai, Y.

AU - Santelj, L.

AU - Sanuki, T.

AU - Savinov, V.

AU - Schneider, O.

AU - Schnell, G.

AU - Schwanda, C.

AU - Semmler, D.

AU - Seon, O.

AU - Shebalin, V.

AU - Shen, C. P.

AU - Shibata, T. A.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Sibidanov, A.

AU - Simon, F.

AU - Sohn, Y. S.

AU - Sokolov, A.

AU - Solovieva, E.

AU - Stanič, S.

AU - Starič, M.

AU - Sumiyoshi, T.

AU - Tamponi, U.

AU - Tatishvili, G.

AU - Teramoto, Y.

AU - Uchida, M.

AU - Uehara, S.

AU - Unno, Y.

AU - Uno, S.

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, P.

AU - Watanabe, M.

AU - Watanabe, Y.

AU - Won, Eunil

AU - Yamashita, Y.

AU - Yashchenko, S.

AU - Yook, Y.

AU - Yuan, C. Z.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhulanov, V.

AU - Zupanc, A.

PY - 2014/4/9

Y1 - 2014/4/9

N2 - We report measurements of branching fractions of τ lepton decays to final states with a KS0 meson using a 669fb-1 data sample accumulated with the Belle detector at the KEKB asymmetric-energy e+e- collider. The inclusive branching fraction is measured to be B(τ-→KS0X-ντ)=(9. 15±0.01±0.15)×10-3, where X- can be anything; the exclusive branching fractions are B(τ-→π-KS0ντ)=(4.16±0. 01±0.08)×10-3, B(τ-→K-KS0ντ)=(7.40±0. 07±0.27)×10-4, B(τ-→π-KS0π0ντ)=(1. 93±0.02±0.07)×10-3, B(τ-→K-KS0π0ντ)=(7. 48±0.10±0.37)×10-4, B(τ-→π-KS0KS0ντ)=(2. 33±0.03±0.09)×10-4, B(τ-→π-KS0KS0π0ντ) =(2.00±0.22±0.20)×10-5, where the first uncertainty is statistical and the second is systematic. For each mode, the accuracy is improved over that of pre-B-factory measurements by a factor ranging from five to ten. In τ-→π-KS0KS0π0ντ decays, clear signals for the intermediate states τ-→π-f1(1285)ντ and τ-→K*- KS0π0ντ are observed.

AB - We report measurements of branching fractions of τ lepton decays to final states with a KS0 meson using a 669fb-1 data sample accumulated with the Belle detector at the KEKB asymmetric-energy e+e- collider. The inclusive branching fraction is measured to be B(τ-→KS0X-ντ)=(9. 15±0.01±0.15)×10-3, where X- can be anything; the exclusive branching fractions are B(τ-→π-KS0ντ)=(4.16±0. 01±0.08)×10-3, B(τ-→K-KS0ντ)=(7.40±0. 07±0.27)×10-4, B(τ-→π-KS0π0ντ)=(1. 93±0.02±0.07)×10-3, B(τ-→K-KS0π0ντ)=(7. 48±0.10±0.37)×10-4, B(τ-→π-KS0KS0ντ)=(2. 33±0.03±0.09)×10-4, B(τ-→π-KS0KS0π0ντ) =(2.00±0.22±0.20)×10-5, where the first uncertainty is statistical and the second is systematic. For each mode, the accuracy is improved over that of pre-B-factory measurements by a factor ranging from five to ten. In τ-→π-KS0KS0π0ντ decays, clear signals for the intermediate states τ-→π-f1(1285)ντ and τ-→K*- KS0π0ντ are observed.

UR - http://www.scopus.com/inward/record.url?scp=84898603139&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84898603139&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.89.072009

DO - 10.1103/PhysRevD.89.072009

M3 - Article

VL - 89

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 0556-2821

IS - 7

M1 - 072009

ER -