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10 results on '"Staric M"'

1. Search for D0 decays to invisible final states at Belle

Author

Lai, Y. -T., Wang, M. -Z., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Aushev, T., Ayad, R., Badhrees, I., Bakich, A. M., Bansal, V., Barberio, E., Berger, M., Bhardwaj, V., Bhuyan, B., Biswal, J., Bobrov, A., Bozek, A., Bracko, M., Cervenkov, D., Chang, P., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dash, N., Di Carlo, S., Dolezal, Z., Dutta, D., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Fulsom, B. G., Gaur, V., Gabyshev, N., Garmash, A., Gillard, R., Goldenzweig, P., Golob, B., Hayasaka, K., Hou, W. -S., Hsu, C. -L., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, Y., Jacobs, W. W., Jaegle, I., Jeon, H. B., Joffe, D., Joo, K. K., Julius, T., Kang, K. H., Kawasaki, T., Kim, D. Y., Kim, J. B., Kim, K. T., Kim, M. J., Kim, S. H., Kim, Y. J., Kinoshita, K., Kodys, P., Kotchetkov, D., Krokovny, P., Kuhr, T., Kulasiri, R., Kwon, Y. -J., Lange, J. S., Lee, I. S., Li, C. H., Li, L., Li, Y., Gioi, L. Li, Libby, J., Liventsev, D., Masuda, M., Matsuda, T., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mohanty, S., Nakano, E., Nakao, M., Nakazawa, H., Nanut, T., Nath, K. J., Natkaniec, Z., Nayak, M., Nishida, S., Ogawa, S., Okuno, S., Pakhlov, P., Pal, B., Park, H., Paul, S., Pedlar, T. K., Piilonen, L. E., Pulvermacher, C., Rauch, J., Ritter, M., Sahoo, H., Sakai, Y., Sandilya, S., Sato, Y., Savinov, V., Schlueter, T., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Seino, Y., Semmler, D., Senyo, K., Seong, I. S., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Simon, F., Solovieva, E., Staric, M., Stypula, J., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tenchini, F., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Van Hulse, C., Varner, G., Varvell, K. E., Vorobyev, V., Wang, C. H., Watanabe, M., Watanabe, Y., Widmann, E., Won, E., Yamashita, Y., Ye, H., Yook, Y., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., Zupanc, A., and Belle Collaboration

Subjects
Particle physics, branching ratio: upper limit [D0], charmed particle, FOS: Physical sciences, BELLE, annihilation [electron positron], Upsilon(10870), 01 natural sciences, High Energy Physics - Experiment, law.invention, High Energy Physics - Experiment (hep-ex), KEK-B, KEKB, law, 0103 physical sciences, ddc:530, Limit (mathematics), 010306 general physics, Collider, invisible decay [D0], Particle system, Physics, 010308 nuclear & particles physics, Branching fraction, pair production [D0], Detector, Upsilon(10570), electroproduction [Upsilon(10870)], particle identification [charmed particle], electroproduction [Upsilon(10570)], colliding beams [electron positron], High Energy Physics::Experiment, branching ratio, experimental results
Abstract

We report the result from the first search for $D^0$ decays to invisible final states. The analysis is performed on a data sample of 924 $\rm{fb}^{-1}$ collected at and near the $\Upsilon(4S)$ and $\Upsilon(5S)$ resonances with the Belle detector at the KEKB asymmetric-energy $e^{+}e^{-}$ collider. The absolute branching fraction is determined using an inclusive $D^0$ sample, obtained by fully reconstructing the rest of the particle system including the other charmed particle. No significant signal yield is observed and an upper limit of $9.4\times 10^{-5}$ is set on the branching fraction of $D^0$ to invisible final states at 90\% confidence level., Comment: 17 pages, 4 figures, submitted to PRD(RC)

Published
2017
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2. Measurements of exclusive B^{0}_{s} decays at the γ(5S) resonance

Author

Drutskoy, A., Abe, K., Adachi, I., Aihara, H., Anipko, D., Bakich, A. M., Barberio, E., Bedny, I., Bitenc, U., Bizjak, I., Blyth, S., Shibuya, H., Singh, J. B., Somov, A., Soni, N., Stanic, S., Staric, M., Stoeck, H., Sumisawa, K., Sumiyoshi, T., Suzuki, S., Bondar, A., Takasaki, F., Tamai, K., Tanaka, M., Taylor, G. N., Teramoto, Y., Tian, X. C., Tikhomirov, I., Uehara, S., Ueno, K., Unno, Y., Bracˇko, M., Uno, S., Ushiroda, Y., Usov, Y., Varner, G., Villa, S., Vinokurova, A., Wang, C. H., Watanabe, Y., Wicht, J., Yabsley, B. D., Browder, T. E., Yamaguchi, A., Yamashita, Y., Yamauchi, M., Zhilich, V., Zhulanov, V., Zupanc, A., Chang, M.-C., Chang, P., Chao, Y., Chen, A., Chen, K.-F., Chen, W. T., Cheon, B. G., Chistov, R., Choi, Y., Dalseno, J., Danilov, M., Dash, M., Dragic, J., Eidelman, S., Fratina, S., Gabyshev, N., Golob, B., Ha, H., Haba, J., Hara, T., Hayashii, H., Hazumi, M., Heffernan, D., Hoshi, Y., Hou, W.-S., Hsiung, Y. B., Ikado, K., Inami, K., Ishikawa, A., Ishino, H., Itoh, R., Iwasaki, M., Iwasaki, Y., Kang, J. H., Kapusta, P., Kawai, H., Kawasaki, T., Kim, H. J., Kim, H. O., Kim, Y. J., Kinoshita, K., Korpar, S., Krizˇan, P., Krokovny, P., Kulasiri, R., Kumar, R., Kuo, C. C., Kuzmin, A., Kwon, Y.-J., Lee, M. J., Limosani, A., Lin, S.-W., Liventsev, D., MacNaughton, J., Majumder, G., Matsumoto, T., McOnie, S., Mitaroff, W., Miyabayashi, K., Miyata, H., Miyazaki, Y., Moloney, G. R., Nakano, E., Nakao, M., Natkaniec, Z., Nishida, S., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S. L., Onuki, Y., Ozaki, H., Pakhlov, P., Pakhlova, G., Pestotnik, R., Piilonen, L. E., Sakai, Y., Satoyama, N., Schietinger, T., Schneider, O., Schümann, J., Schwartz, A. J., Seidl, R., Senyo, K., Sevior, M. E., and Shapkin, M.

Abstract

Several exclusive B^{O}_{s} decays are studied using a 1.86 fb^{-1} data sample collected at the Υ(5S) resonance with the Belle detector at the KEKB asymmetric energy e^+e^- collider. In the B^{O}_{s}→D^{-}\{s}π^+ decay mode we find 10 B^{O}_{s} candidates and measure the corresponding branching fraction. Combining the B^{O}_{s}→ D^(*)-_s π^+, B^{O}_{s} → D^(*)-_sρ^+, B^{O}_{s}→ J/Ψφ, and B^{O}_{s}→ J/Ψη decay modes, a significant B^{O}_{S}signal is observed. The ratio σ(e^+e^- → B^{*}_{s}\bar{b}^{*}_{s})/σ(e^+e^- → B^{(*)}_S\bar{B}^{(*)}_s)=(93^{+7}_{-9}±1)% is obtained at the Υ(5S) energy, indicating that B^{O}_{s} meson production proceeds predominantly through the creation of B^{*}_{s}\bar{B}^{*}_S pairs. The B^{O}_{s} and B^{*}_{s} meson masses are measured to be M(B^{O}_{s})=(5370±1±3) MeV/c^2 and M(B^{*}_{s})=(5418±1±3) MeV/c^2. Upper limits on the B^{O}_{s} →γγ, B^{O}_{s} → φγ, B^{O}_{s} → K^+K^-, and B^{O}_{s} → D^{(*)}+_{s}D^{(*)}_s- branching fractions are also reported.

Published
2007

3. Search for lepton-number-violating B+-> D(-)l(+)l '(+) decays

Author

Seon, O, Kwon, Y-J, Iijima, T, Adachi, I, Aihara, H, Asner, DM, Aushev, T, Bakich, AM, Barberio, E, Bay, A, Bhardwaj, V, Bhuyan, B, Bischofberger, M, Bondar, A, Bozek, A, Bracko, M, Brodzicka, J, Brovchenko, O, Browder, TE, Chang, P, Chen, A, Chen, P, Cheon, BG, Chilikin, K, Cho, I-S, Cho, K, Choi, S-K, Choi, Y, Dalseno, J, Dolezal, Z, Drutskoy, A, Eidelman, S, Fast, JE, Gaur, V, Gabyshev, N, Goh, YM, Golob, B, Haba, J, Hara, K, Hara, T, Hayasaka, K, Hayashii, H, Horii, Y, Hoshi, Y, Hou, W-S, Hsiung, YB, Hyun, HJ, Inami, K, Ishikawa, A, Itoh, R, Iwabuchi, M, Iwasaki, Y, Iwashita, T, Joshi, NJ, Julius, T, Kang, JH, Katayama, N, Kawasaki, T, Kichimi, H, Kim, HJ, Kim, HO, Kim, JB, Kim, JH, Kim, KT, Kim, MJ, Kim, SK, Kim, YJ, Kinoshita, K, Ko, BR, Kobayashi, N, Koblitz, S, Kodys, P, Korpar, S, Krizan, P, Kuhr, T, Kumita, T, Kuzmin, A, Kyeong, S-H, Lange, JS, Lee, MJ, Lee, S-H, Li, J, Li, Y, Libby, J, Lim, C-L, Liu, C, Liu, Y, Liventsev, D, Louvot, R, McOnie, S, Miyabayashi, K, Miyata, H, Miyazaki, Y, Mizuk, R, Mohanty, GB, Nagasaka, Y, Nakano, E, Nakao, M, Nakazawa, H, Natkaniec, Z, Neubauer, S, Nishida, S, Nishimura, K, Nitoh, O, Ogawa, S, Ohshima, T, Okuno, S, Olsen, SL, Onuki, Y, Pakhlov, P, Pakhlova, G, Park, H, Park, HK, Park, KS, Pestotnik, R, Petric, M, Piilonen, LE, Prim, M, Roehrken, M, Ryu, S, Sahoo, H, Sakai, K, Sakai, Y, Sanuki, T, Schneider, O, Schwanda, C, Senyo, K, Sevior, ME, Shen, CP, Shibata, T-A, Shiu, J-G, Simon, F, Singh, JB, Smerkol, P, Sohn, Y-S, Sokolov, A, Solovieva, E, Stanic, S, Staric, M, Sumihama, M, Sumiyoshi, T, Suzuki, K, Suzuki, S, Tatishvili, G, Teramoto, Y, Trabelsi, K, Uchida, M, Uehara, S, Uglov, T, Unno, Y, Uno, S, Ushiroda, Y, Usov, Y, Vahsen, SE, Varner, G, Varvell, KE, Vinokurova, A, Wang, CH, Wang, M-Z, Wang, P, Watanabe, M, Watanabe, Y, Williams, KM, Won, E, Yabsley, BD, Yamashita, Y, Yamauchi, M, Zhang, CC, Zhang, ZP, Zhilich, V, Zhulanov, V, Zupanc, A, Zyukova, O, and Collaboration, B

Published
2011

4. Study of the decays B -> Ds1(2536)(+) (D)over-bar(()*())

Author

Aushev, T, Adachi, I, Arinstein, K, Aulchenko, V, Bakich, AM, Balagura, V, Bhardwaj, V, Bischofberger, M, Bondar, A, Bozek, A, Bracko, M, Browder, TE, Chang, M-C, Chen, A, Chen, P, Cheon, BG, Chistov, R, Cho, I-S, Cho, K, Choi, K-S, Choi, Y, Dalseno, J, Danilov, M, Drutskoy, A, Eidelman, S, Epifanov, D, Gaur, V, Gabyshev, N, Garmash, A, Golob, B, Ha, H, Hayasaka, K, Hayashii, H, Horii, Y, Hoshi, Y, Hou, W-S, Hyun, HJ, Iijima, T, Inami, K, Ishikawa, A, Itoh, R, Iwabuchi, M, Iwasaki, Y, Iwashita, T, Julius, T, Kang, JH, Kawasaki, T, Kim, HJ, Kim, HO, Kim, JH, Kim, MJ, Kim, YJ, Kinoshita, K, Ko, BR, Kodys, P, Krizan, P, Kuhr, T, Kumita, T, Kuzmin, A, Kwon, Y-J, Kyeong, S-H, Lange, JS, Lee, S-H, Li, J, Liu, C, Liu, Y, Liventsev, D, Louvot, R, Matyja, A, McOnie, S, Miyabayashi, K, Miyata, H, Miyazaki, Y, Mizuk, R, Mohanty, GB, Nakao, M, Nakazawa, H, Natkaniec, Z, Neubauer, S, Nishida, S, Nitoh, O, Ogawa, S, Ohshima, T, Olsen, SL, Ostrowicz, W, Pakhlov, P, Pakhlova, G, Park, HK, Pestotnik, R, Petric, M, Piilonen, LE, Poluektov, A, Prothmann, K, Roehrken, M, Ryu, S, Sahoo, H, Sakai, K, Sakai, Y, Schneider, O, Schwanda, C, Senyo, K, Seon, O, Sevior, ME, Shapkin, M, Shebalin, V, Shen, CP, Shiu, J-G, Shwartz, B, Simon, F, Singh, JB, Smerkol, P, Sohn, Y-S, Sokolov, A, Solovieva, E, Stanic, S, Staric, M, Sumihama, M, Sumiyoshi, T, Tanaka, S, Teramoto, Y, Tikhomirov, I, Trabelsi, K, Uchida, M, Uglov, T, Uno, S, Usov, Y, Vahsen, SE, Varner, G, Vervink, K, Vinokurova, A, Vossen, A, Wang, CH, Wang, M-Z, Wang, P, Watanabe, Y, Williams, KM, Yabsley, BD, Yamashita, Y, Yusa, Y, Zhang, ZP, Zhilich, V, Zhou, P, Zhulanov, V, Zupanc, A, Zyukova, O, and Collaboration, B

Published
2011

5. Measurement of azimuthal asymmetries in inclusive production of hadron pairs in e^＋e^－ annihilation at √s = 10.58 GeV

Author

Seidl, R., Grosse, Perdekamp M., Ogawa, A., Adachi, I., Aihara, H., Bahinipati, S., Bakich, A. M., Bartel, W., Bitenc, U., Bondar, A., Bozek, A., Nakazawa, H., Nishida, S., Nitoh, O., Ogawa, S., Ohshima, T., Okuno, S., Pakhlov, P., Pakhlova, G., Palka, H., Park, C.W., Sekiya, A., Park, H., Park, H. K., Peak, L. S., Piilonen, L. E., Sahoo, H., Sakai, Y., Schneider, O., Senyo, K., Sevior, M. E., Shapkin, M., Shen, C. P., Shiu, J.-G., Singh, J. B., Stanic, S., Staric, M., Sumiyoshi, T., Urquijo, P., Tanaka, M., Teramoto, Y., Tikhomirov, I., Uehara, S., Uglov, T., Unno, Y., Uno, S., Usov, Y., Varner, G., Vervink, K., Wang, C. H., Wang, P., Wang, X. L., Watanabe, Y., Wedd, R., Won, E., Bracˇko, M., Yabsley, B. D., Yamashita, Y., Zhang, Z. P., Zhilich, V., Zivko, T., Zupanc, A., Zyukova, O., Brodzicka, J., Browder, T. E., Chao, Y., Chen, A., Cheon, B. G., Chistov, R., Cho, I.-S., Choi, Y., Dalseno, J., Dash, M., Drutskoy, A., Eidelman, S., Gabyshev, N., Golob, B., Ha, H., Hayasaka, K., Hayashii, H., Hazumi, M., Heffernan, D., Hoshi, Y., Hou, W.-S., Hyun, H. J., Ishikawa, A., Iwasaki, Y., Kah, D. H., Kaji, H., Kawai, H., Kawasaki, T., Kim, H. J., Kim, H. O., Kim, Y. I., Kim, Y. J., Krizˇan, P., Kumar, R., Kwon, Y.-J., Kyeong, S.-H., Lange, J. S., Lee, J. S., Lee, M. J., Lesiak, T., Li, J., Limosani, A., Liu, C., Liventsev, D., Mandl, F., McOnie, S., Medvedeva, T., Miyabayashi, K., Miyake, H., Miyata, H., Miyazaki, Y., Mizuk, R., Moloney, G. R., and Nakano, E.

Subjects
High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment
Abstract

The Collins effect connects transverse quark spin with a measurable azimuthal asymmetry in the yield of hadronic fragments around the quark’s momentum vector. Using two different reconstruction methods we measure statistically significant azimuthal asymmetries for charged pion pairs in e^+e^- annihilation at center-of-mass energies of 10.52 GeV and 10.58 GeV, which can be attributed to the fragmentation of primordial quarks with transverse spin components. The measurement was performed using a data set of 547 fb^{-1} collected by the Belle detector at KEKB improving the statistics of the previously published results by nearly a factor of 20.

Published
2008

6. Search for \bar{B}^0 →Λ_c^+\bar{Λ}_c^- decay at Belle

Author

Uchida, Y., Ozaki, H., Kichimi, H., Adachi, I., Aihara, H., Arinstein, K., Aushev, T., Bakich, A. M., Balagura, V., Barberio, E., Bay, A., Lee, J. S., Lee, M. J., Lee, S. E., Lesiak, T., Lin, S.-W., Liventsev, D., Mandl, F., McOnie, S., Medvedeva, T., Mitaroff, W., Shapkin, M., Miyake, H., Miyata, H., Miyazaki, Y., Mizuk, R., Moloney, G. R., Nagasaka, Y., Nakano, E., Nakao, M., Nakazawa, H., Natkaniec, Z., Shen, C. P., Nishida, S., Nitoh, O., Nozaki, T., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S. L., Pakhlov, P., Pakhlova, G., Park, C.W., Shibuya, H., Park, H., Peak, L. S., Pestotnik, R., Piilonen, L. E., Sakai, Y., Schneider, O., Senyo, K., Sevior, M. E., Shiu, J.-G., Shwartz, B., Singh, J. B., Somov, A., Stanic, S., Staric, M., Sumiyoshi, T., Belous, K., Suzuki, S.Y., Takasaki, F., Tanaka, M., Taylor, G. N., Teramoto, Y., Tikhomirov, I., Ueno, K., Uglov, T., Unno, Y., Uno, S., Bhardwaj, V., Urquijo, P., Usov, Y., Varner, G., Vervink, K., Wang, C. C., Wang, C. H., Wang, M.-Z., Wang, P., Watanabe, Y., Wedd, R., Bitenc, U., Won, E., Yamashita, Y., Yamauchi, M., Zhang, C. C., Zhang, Z. P., Zhulanov, V., Zupanc, A., Zyukova, O., Bondar, A., Bozek, A., Bracˇko, M., Browder, T. E., Chang, M.-C., Chao, Y., Chen, A., Chen, W. T., Cheon, B. G., Chistov, R., Cho, I.-S., Choi, Y., Dalseno, J., Dash, M., Drutskoy, A., Eidelman, S., Gabyshev, N., Golob, B., Ha, H., Haba, J., Hayasaka, K., Hazumi, M., Heffernan, D., Hoshi, Y., Hou, W.-S., Hsiung, Y. B., Hyun, H. J., Ikado, K., Inami, K., Ishikawa, A., Itoh, R., Iwabuchi, M., Iwasaki, M., Iwasaki, Y., Kah, D. H., Kaji, H., Kang, J. H., Katayama, N., Kawai, H., Kawasaki, T., Kim, Y. J., Kinoshita, K., Korpar, S., Krizˇan, P., Krokovny, P., Kuo, C. C., Kuzmin, A., and Kwon, Y.-J.

Subjects
High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract

We search for the doubly charmed baryonic decay \bar{B}^0 →Λ_c^+\bar{Λ}_c^-, in a data sample of 520×106 B\bar{B} events accumulated at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^+e^- collider. We find no significant signal and set an upper limit of B(\bar{B}^0 →Λ_c^+\bar{Λ}_c^-)< 6.2×10^{-5} at 90% confidence level. The result is significantly below a naive extrapolation from B(B^-→ Ξ\begin0\c\end\bar{Λ}_c^-) assuming a simple Cabibbo-suppression factor of |V_cd/V_cs|^2. The small branching fraction may be attributed to a suppression due to the large momentum of the baryonic decay products, which has been observed in other charmed baryonic two-body B decays.

Published
2008

7. Observation of D_s1(2536)^+ → D^+π^-K^+ and angular decomposition of D_s1(2536)^+ →D^*+K_S^0

Author

Balagura, V., Adachi, I., Aihara, H., Arinstein, K., Aulchenko, V., Aushev, T., Bakich, A. M., Barberio, E., Bay, A., Belous, K., Bhardwaj, V., Kawai, H., Kawasaki, T., Kichimi, H., Kim, H. J., Kim, H. O., Kim, Y. J., Kinoshita, K., Korpar, S., Krizˇan, P., Krokovny, P., Park, C.W., Kuo, C. C., Kuzmin, A., Kwon, Y.-J., Lange, J. S., Lee, M. J., Lee, S. E., Lesiak, T., Limosani, A., Lin, S.-W., Liu, Y., Peak, L. S., Liventsev, D., Mandl, F., McOnie, S., Medvedeva, T., Mitaroff, W., Miyake, H., Miyata, H., Miyazaki, Y., Mizuk, R., Mohapatra, D., Pestotnik, R., Moloney, G. R., Nagasaka, Y., Nakano, E., Nakao, M., Nakazawa, H., Natkaniec, Z., Nishida, S., Nitoh, O., Ogawa, S., Ohshima, T., Piilonen, L. E., Okuno, S., Olsen, S. L., Ostrowicz, W., Ozaki, H., Pakhlov, P., Pakhlova, G., Palka, H., Sakai, Y., Schneider, O., Senyo, K., Shapkin, M., Shen, C. P., Shibuya, H., Bitenc, U., Shiu, J.-G., Somov, A., Stanic, S., Staric, M., Sumiyoshi, T., Tamai, K., Tanaka, M., Taylor, G. N., Teramoto, Y., Tikhomirov, I., Bondar, A., Uehara, S., Ueno, K., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Varner, G., Vervink, K., Villa, S., Bozek, A., Vinokurova, A., Wang, C. C., Wang, C. H., Wang, M.-Z., Wang, P., Wang, X. L., Watanabe, Y., Won, E., Yabsley, B. D., Yamaguchi, A., Bracˇko, M., Yamashita, Y., Yamauchi, M., Zhang, Z. P., Zhilich, V., Zhulanov, V., Zupanc, A., Zyukova, O., Brodzicka, J., Browder, T. E., Chang, M.-C., Chao, Y., Chen, A., Chen, W. T., Cheon, B. G., Chistov, R., Cho, I.-S., Choi, Y., Dalseno, J., Danilov, M., Drutskoy, A., Eidelman, S., Epifanov, D., Gabyshev, N., Garmash, A., Golob, B., Ha, H., Haba, J., Hara, T., Hastings, N. C., Hayasaka, K., Hayashii, H., Hazumi, M., Heffernan, D., Hoshi, Y., Hou, W.-S., Hyun, H. J., Inami, K., Ishikawa, A., Ishino, H., Itoh, R., Iwasaki, M., Iwasaki, Y., Kah, D. H., Kaji, H., and Katayama, N.

Abstract

Using 462 fb^{-1} of e^+e^- annihilation data recorded by the Belle detector, we report the first observation of the decay D_s1(2536)^+ → D+π^-K^+. The ratio of branching fractions \frac{B(D_s1(2536)^+ → D^+π^- K^+}{B(D_s1(2536)^+ → D+K^0}is measured to be (3.27±0.18±0.37)%. We also study the angular distributions in the D_s1(2536)^+ →D*+K_S^0 decay and measure the ratio of D- and S-wave amplitudes. The S-wave dominates, with a partial width of Γ_S/Γtotal=0.72±0.05±0.01.

Published
2008

8. Measurement of the near-threshold e^+e^- → D\bar{D} cross section using initial-state radiation

Author

Pakhlova, G., Adachi, I., Aihara, H., Arinstein, K., Aulchenko, V., Aushev, T., Bakich, A. M., Balagura, V., Bay, A., Bedny, I., Bitenc, U., Liu, Y., Liventsev, D., Mandl, F., Matyja, A., McOnie, S., Medvedeva, T., Mitaroff, W., Miyabayashi, K., Miyata, H., Miyazaki, Y., Shiu, J.-G., Mizuk, R., Moloney, G. R., Nishida, S., Nitoh, O., Nozaki, T., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S. L., Ozaki, H., Shwartz, B., Pakhlov, P., Park, C.W., Peak, L. S., Pestotnik, R., Piilonen, L. E., Poluektov, A., Sahoo, H., Sakai, Y., Schneider, O., Schwartz, A. J., Singh, J. B., Seidl, R., Senyo, K., Shapkin, M., Shebalin, V., Shibuya, H., Sokolov, A., Somov, A., Stanic, S., Staric, M., Sumiyoshi, T., Suzuki, S.Y., Takasaki, F., Bondar, A., Tamai, K., Teramoto, Y., Tikhomirov, I., Uehara, S., Ueno, K., Uglov, T., Unno, Y., Uno, S., Usov, Y., Varner, G., Bozek, A., Vervink, K., Villa, S., Vinokurova, A., Wang, C. H., Wang, P., Wang, X. L., Watanabe, Y., Yabsley, B. D., Yuan, C. Z., Yusa, Y., Bracˇko, M., Zhang, Z. P., Zhilich, V., Zhulanov, V., Zupanc, A., Zyukova, O., Brodzicka, J., Browder, T. E., Chang, P., Chen, A., Chen, W. T., Cheon, B. G., Chistov, R., Choi, S.-K., Choi, Y., Dalseno, J., Danilov, M., Drutskoy, A., Eidelman, S., Epifanov, D., Gabyshev, N., Golob, B., Hayasaka, K., Hayashii, H., Heffernan, D., Hoshi, Y., Hou, W.-S., Hyun, H. J., Iijima, T., Inami, K., Ishikawa, A., Ishino, H., Itoh, R., Iwasaki, Y., Kah, D. H., Kang, J. H., Katayama, N., Kawai, H., Kawasaki, T., Kibayashi, A., Kichimi, H., Kim, H. O., Kim, S. K., Kim, Y. J., Kinoshita, K., Korpar, S., Krokovny, P., Kumar, R., Kuo, C. C., Kuzmin, A., Kwon, Y.-J., Lange, J. S., Lee, J. S., Lee, M. J., Lesiak, T., Limosani, A., and Lin, S.-W.

Subjects
High Energy Physics::Experiment
Abstract

We report measurements of the exclusive cross section for e^+e^ →D\bar{D}, where D=D^0 or D^+, in the center-of-mass energy range from the D\bar{D} threshold to 5 GeV with initial-state radiation. The analysis is based on a data sample collected with the Belle detector with an integrated luminosity of 673 fb^{-1}.

Published
2008

9. Measurement of branching fraction and time-dependent CP asymmetry parameters in B^0 → D^*+D^*-K^{0}_{S}decays

Author

Dalseno, J., Adachi, I., Aihara, H., Aushev, T., Bakich, A. M., Balagura, V., Bay, A., Bitenc, U., Bizjak, I., Bozek, A., Bracˇko, M., Ogawa, S., Ohshima, T., Okuno, S., Onuki, Y., Ostrowicz, W., Ozaki, H., Pakhlov, P., Pakhlova, G., Park, C.W., Park, H., Sumisawa, K., Park, K. S., Pestotnik, R., Piilonen, L. E., Sahoo, H., Sakai, Y., Schneider, O., Schümann, J., Seidl, R., Sekiya, A., Senyo, K., Sumiyoshi, T., Sevior, M. E., Shapkin, M., Shibuya, H., Singh, J. B., Sokolov, A., Somov, A., Stanic, S., Staric, M., Stoeck, H., Takasaki, F., Tanaka, M., Taylor, G. N., Teramoto, Y., Tian, X. C., Tsukamoto, T., Uehara, S., Ueno, K., Browder, T. E., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Varner, G., Villa, S., Vinokurova, A., Wang, C. C., Wang, C. H., Watanabe, Y., Chao, Y., Wedd, R., Won, E., Yabsley, B. D., Yamaguchi, A., Yamashita, Y., Yamauchi, M., Zhang, Z. P., Zhilich, V., Zupanc, A., Chen, A., Cheon, B. G., Chistov, R., Cho, I.-S., Choi, Y., Choi, Y. K., Danilov, M., Dash, M., Drutskoy, A., Eidelman, S., Go, A., Ha, H., Hayasaka, K., Hazumi, M., Heffernan, D., Hokuue, T., Hyun, H. J., Inami, K., Ishikawa, A., Ishino, H., Iwasaki, M., Iwasaki, Y., Joshi, N. J., Kah, D. H., Kang, J. H., Kapusta, P., Katayama, N., Kawai, H., Kawasaki, T., Kichimi, H., Kim, H. J., Kim, Y. J., Kinoshita, K., Krizˇan, P., Krokovny, P., Kumar, R., Kuo, C. C., Kuzmin, A., Kwon, Y.-J., Lee, J. S., Lee, S. E., Lesiak, T., Li, J., Limosani, A., Lin, S.-W., Liventsev, D., Mandl, F., Matsumoto, T., McOnie, S., Medvedeva, T., Mitaroff, W., Miyake, H., Miyata, H., Moloney, G. R., Nakano, E., Nakao, M., Nishida, S., and Nitoh, O.

Abstract

We present a measurement of the branching fraction and time-dependent CP violation parameters for B^0 → D^*+D^*-K^{0}_{S} decays. These results are obtained from a 414 fb^{-1} data sample that contains 449×10^6 B\bar{B} pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^+e^- collider. We obtain the branching fraction, B(B^0→D^*+D*^-K^{O}_{S})= [3.4±0.4(stat)±0.7(syst)]×10^-3, which is in agreement with the current world average. We also obtain an upper limit on the product branching fraction for a possible two-body decay, B(B^0 → D_s1^+(2536)D^*-)B(D_s1^+(2536)→ D^*+K^{O}_{S})s^+, where s^±[equivalent]m2(D^*±K^{0}_{S}), we extract the CP violation parameters, J_c/J_0=0.60^{+0.25}_{-0.28}(stat)±0.08(syst), 2J_s1/J_0sin2φ_1=-0.17^{+0.42}_{-0.42}(stat)±0.09(syst), 2J_s2/J_0cos2φ_1=-0.23^{+0.43}_{-0.41}(stat)±0.13(syst). A large value of J_c/J_0 would indicate a significant resonant contribution from a broad unknown D_s^**+ state. Although the sign of the factor, 2J_s2/J_0, can be deduced from theory, no conclusion can be drawn regarding the sign of cos2φ_1 given the errors.

Published
2007

10. Search for B decays into η'p, η'K^*, η'φ, η'ω and η'η^(')

Author

Schümann, J., Wang, C. H., Abe, K., Aihara, H., Anipko, D., Arinstein, K., Aulchenko, V., Aushev, T., Bakich, A. M., Barberio, E., Belous, K., Khan, H. R., Kichimi, H., Kim, H. O., Kim, Y. J., Kinoshita, K., Korpar, S., Krizˇan, P., Krokovny, P., Kulasiri, R., Kumar, R., Park, K. S., Kuo, C. C., Kuzmin, A., Kwon, Y.-J., Lee, M. J., Lee, S. E., Lesiak, T., Limosani, A., Lin, S.-W., Liventsev, D., Majumder, G., Peak, L. S., Mandl, F., Marlow, D., Matsumoto, T., Matyja, A., McOnie, S., Medvedeva, T., Miyata, H., Miyazaki, Y., Mizuk, R., Mori, T., Pestotnik, R., Nagasaka, Y., Nakano, E., Nakao, M., Nakazawa, H., Nishida, S., Nitoh, O., Ogawa, S., Ohshima, T., Okuno, S., Onuki, Y., Piilonen, L. E., Ozaki, H., Pakhlov, P., Pakhlova, G., Park, C.W., Park, H., Sakai, Y., Satoyama, N., Schietinger, T., Schneider, O., Schwanda, C., Senyo, K., Bitenc, U., Sevior, M. E., Shapkin, M., Shibuya, H., Somov, A., Stanic, S., Staric, M., Stoeck, H., Suzuki, S.Y., Takasaki, F., Tamai, K., Bizjak, I., Tanaka, M., Taylor, G. N., Teramoto, Y., Tian, X. C., Tikhomirov, I., Trabelsi, K., Tsuboyama, T., Tsukamoto, T., Uehara, S., Uglov, T., Blyth, S., Ueno, K., Uno, S., Urquijo, P., Usov, Y., Varner, G., Villa, S., Wang, M.-Z., Watanabe, M., Watanabe, Y., Won, E., Bondar, A., Yamaguchi, A., Yamashita, Y., Yamauchi, M., Zhilich, V., Zupanc, A., Bozek, A., Bracˇko, M., Browder, T. E., Chang, P., Chao, Y., Chen, A., Chen, K.-F., Chen, W. T., Cheon, B. G., Chistov, R., Choi, Y., Choi, Y. K., Cole, S., Dalseno, J., Eidelman, S., Fratina, S., Gershon, T., Go, A., Gokhroo, G., Golob, B., Ha, H., Hazumi, M., Heffernan, D., Hokuue, T., Hoshi, Y., Hou, S., Hou, W.-S., Hsiung, Y. B., Ikado, K., Imoto, A., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Kang, J. H., Kapusta, P., Katayama, N., Kawai, H., and Kawasaki, T.

Abstract

We report on a search for the exclusive two-body charmless hadronic B meson decays B → η'ρ, B → η'K^*, B^0 → ηφ, B^0 → η'ω, and B0 →η'η^('). The results are obtained from a data sample containing 535×10^6 B\bar{B} pairs that were collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^+e^- collider. We find no significant signals and report upper limits in the range (0.5–6.5)×10^-6 for all of the above decays.

Published
2007

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