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301. Observation of B+--psi(3770)K+

Author: R, Chistov, K, Abe, T, Abe, H, Aihara, M, Akatsu, Y, Asano, T, Aushev, A M, Bakich, Y, Ban, S, Banerjee, A, Bay, I, Bedny, I, Bizjak, A, Bondar, A, Bozek, M, Bracko, J, Brodzicka, T E, Browder, Y, Chao, K-F, Chen, B G, Cheon, Y, Choi, Y K, Choi, M, Danilov, M, Dash, L Y, Dong, A, Drutskoy, S, Eidelman, V, Eiges, D, Epifanov, N, Gabyshev, A, Garmash, T, Gershon, B, Golob, R, Guo, J, Haba, T, Hara, H, Hayashii, M, Hazumi, L, Hinz, T, Hokuue, Y, Hoshi, W-S, Hou, H-C, Huang, T, Iijima, K, Inami, A, Ishikawa, H, Iwasaki, M, Iwasaki, R, Kagan, J H, Kang, J S, Kang, P, Kapusta, N, Katayama, H, Kawai, T, Kawasaki, H, Kichimi, S K, Kim, K, Kinoshita, P, Koppenburg, S, Korpar, P, Krizan, P, Krokovny, S, Kumar, A, Kuzmin, Y-J, Kwon, J S, Lange, T, Lesiak, J, Li, A, Limosani, S-W, Lin, D, Liventsev, J, MacNaughton, G, Majumder, F, Mandl, D, Marlow, H, Matsumoto, T, Matsumoto, A, Matyja, W, Mitaroff, K, Miyabayashi, H, Miyake, H, Miyata, D, Mohapatra, G R, Moloney, T, Nagamine, Y, Nagasaka, T, Nakadaira, E, Nakano, M, Nakao, S, Nishida, O, Nitoh, S, Noguchi, S, Ogawa, T, Ohshima, S, Okuno, S L, Olsen, H, Ozaki, P, Pakhlov, H, Palka, H, Park, N, Parslow, L E, Piilonen, H, Sagawa, Y, Sakai, T R, Sarangi, O, Schneider, A J, Schwartz, S, Semenov, M E, Sevior, B, Shwartz, V, Sidorov, R, Stamen, S, Stanic, M, Staric, A, Sugiyama, K, Sumisawa, T, Sumiyoshi, S, Suzuki, O, Tajima, F, Takasaki, K, Tamai, N, Tamura, M, Tanaka, Y, Teramoto, T, Tomura, K, Trabelsi, T, Tsuboyama, T, Tsukamoto, S, Uehara, T, Uglov, K, Ueno, S, Uno, G, Varner, C C, Wang, C H, Wang, M-Z, Wang, B D, Yabsley, Y, Yamada, A, Yamaguchi, Y, Yamashita, M, Yamauchi, J, Ying, C C, Zhang, Z P, Zhang, V, Zhilich, D, Zontar, and D, Zürcher
Abstract: We report the first observation of the decay B+--psi(3770)K+ where the psi(3770) is reconstructed in the D0(-)D(0) and D+D- decay channels. The obtained branching fraction is B(B+--psi(3770)K+)=(0.48+/-0.11+/-0.07)x10(-3). We have measured the branching fraction for the decay B+--D0(-)D0K+ to be (1.17+/-0.21+/-0.15)x10(-3) and set a 90% confidence level upper limit of 0.90 x 10(-3) for the decay B+--D+D-K+. We also present the results of a search for possible decays to D(-)D and D0(-)D(0)pi(0) of the recently observed X(3872) particle. The analysis is based on 88 fb(-1) of data collected at the Upsilon(4S) resonance by the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.
Published: 2004

302. Observation of large CP violation and evidence for direct CP violation in B0--pi(+)pi(-) decays

Author: K, Abe, N, Abe, T, Abe, I, Adachi, H, Aihara, K, Akai, M, Akatsu, M, Akemoto, Y, Asano, T, Aso, V, Aulchenko, T, Aushev, A M, Bakich, Y, Ban, S, Banerjee, A, Bay, I, Bedny, I, Bizjak, A, Bondar, A, Bozek, M, Bracko, T E, Browder, Y, Chao, K F, Chen, B G, Cheon, R, Chistov, S K, Choi, Y, Choi, A, Chuvikov, S, Cole, M, Danilov, J, Dragic, A, Drutskoy, S, Eidelman, V, Eiges, Y, Enari, D, Epifanov, J, Flanagan, K, Furukawa, N, Gabyshev, A, Garmash, T, Gershon, B, Golob, J, Haba, K, Hara, N C, Hastings, H, Hayashii, M, Hazumi, L, Hinz, T, Hokuue, Y, Hoshi, W S, Hou, Y B, Hsiung, H C, Huang, T, Iijima, H, Ikeda, K, Inami, A, Ishikawa, H, Ishino, R, Itoh, H, Iwasaki, M, Iwasaki, Y, Iwasaki, H, Kakuno, T, Kamitani, J H, Kang, J S, Kang, P, Kapusta, S U, Kataoka, N, Katayama, H, Kawai, T, Kawasaki, A, Kibayashi, H, Kichimi, E, Kikutani, H J, Kim, J H, Kim, S K, Kim, K, Kinoshita, P, Koppenburg, S, Korpar, P, Krizan, P, Krokovny, S, Kumar, A, Kuzmin, Y J, Kwon, J S, Lange, G, Leder, S H, Lee, Y J, Lee, T, Lesiak, J, Li, A, Limosani, S W, Lin, D, Liventsev, J, MacNaughton, F, Mandl, D, Marlow, H, Matsumoto, T, Matsumoto, A, Matyja, S, Michizono, T, Mimashi, W, Mitaroff, K, Miyabayashi, H, Miyake, H, Miyata, D, Mohapatra, G R, Moloney, A, Murakami, T, Nagamine, Y, Nagasaka, T, Nakadaira, T T, Nakamura, E, Nakano, M, Nakao, H, Nakazawa, Z, Natkaniec, K, Neichi, S, Nishida, O, Nitoh, S, Noguchi, T, Nozaki, S, Ogawa, Y, Ogawa, K, Ohmi, T, Ohshima, N, Ohuchi, K, Oide, T, Okabe, S, Okuno, S L, Olsen, W, Ostrowicz, H, Ozaki, P, Pakhlov, H, Palka, C W, Park, H, Park, N, Parslow, L E, Piilonen, N, Root, M, Rozanska, H, Sagawa, Y, Sakai, O, Schneider, J, Schümann, C, Schwanda, A J, Schwartz, S, Semenov, K, Senyo, H, Shibuya, T, Shidara, B, Shwartz, V, Sidorov, J B, Singh, N, Soni, R, Stamen, S, Stanic, M, Staric, R, Sugahara, K, Sumisawa, T, Sumiyoshi, K, Suzuki, S, Suzuki, O, Tajima, F, Takasaki, K, Tamai, N, Tamura, M, Tanaka, M, Tawada, Y, Teramoto, T, Tomura, T, Tsuboyama, T, Tsukamoto, S, Uehara, T, Uglov, K, Ueno, Y, Unno, S, Uno, G, Varner, K E, Varvell, C C, Wang, C H, Wang, M Z, Wang, Y, Watanabe, B D, Yabsley, Y, Yamada, A, Yamaguchi, Y, Yamashita, M, Yamauchi, H, Yanai, Heyoung, Yang, J, Ying, M, Yokoyama, M, Yoshida, Y, Yusa, C C, Zhang, Z P, Zhang, T, Ziegler, D, Zontar, and D, Zürcher
Abstract: We report the first observation of CP violation in B0--pi(+)pi(-) decays based on 152x10(6) gamma (4S)--BB decays collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We reconstruct a B0--pi(+)pi(-) CP eigenstate and identify the flavor of the accompanying B meson from its decay products. From the distribution of the time intervals between the two B meson decay points, we obtain A(pipi)=+0.58+/-0.15(stat)+/-0.07(syst) and S(pipi)=-1.00+/-0.21(stat)+/-0.07(syst). We rule out the CP-conserving case, A(pipi)=S(pipi)=0, at a level of 5.2 standard deviations. We also find evidence for direct CP violation with a significance at or greater than 3.2 standard deviations for any S(pipi) value.
Published: 2004

303. Spontane Entladungsmuster und Einfluss der Propofol-Narkose bei Globus pallidus-Neuronen in Patienten mit generalisierter idiopathischer Torsionsdystonie

Author: L. Hinz, Jens Volkmann, Hubertus Maximilian Mehdorn, Guenther Deuschl, and Frank Steigerwald
Subjects: Neurology (clinical)
Published: 2004
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304. Far Infrared Imaging of NGC 55

Author: Karl D. Gordon, Charles W. Engelbracht, Casey Papovich, Stefanie Wachter, Deborah Padgett, George J. Bendo, Erick T. Young, Eiichi Egami, Kate Y. L. Su, Douglas M. Kelly, Paul S. Smith, Joannah L. Hinz, Herve Dole, Alberto Noriega-Crespo, Jeonghee Rho, Karl Misselt, William B. Latter, Pablo G. Pérez-González, Almudena Alonso-Herrero, James Muzerolle, Jane E. Morrison, John Stansberry, George H. Rieke, Dean C. Hines, and David T. Frayer
Subjects: Physics, Infrared, Star formation, Astrophysics::High Energy Astrophysical Phenomena, Near-infrared spectroscopy, Astrophysics (astro-ph), FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Galaxy, Luminosity, Far infrared, Spitzer Space Telescope, Space and Planetary Science, Astrophysics::Solar and Stellar Astrophysics, Surface brightness, Astrophysics::Earth and Planetary Astrophysics, Astrophysics::Galaxy Astrophysics
Abstract: We present images of the galaxy NGC 55 at 24, 70, and 160 micron obtained with the Multiband Imaging Photometer for Spitzer (MIPS) instrument aboard the Spitzer Space Telescope. The new images display the far infrared emission in unprecedented detail and demonstrate that the infrared morphology differs dramatically from that at shorter wavelengths. The most luminous emission region in the galaxy is marginally resolved at 24 micron and has a projected separation of nearly 520 pc from the peak emission in the optical and near infrared. This region is responsible for ~9% of the total emission at 24 micron and is likely a young star formation region. We show that this and other compact sources account for more than 1/3 of the total 24 micron emission. We compute a total infrared luminosity for NGC 55 of 1.2*10^9 L_sun. The star formation rate implied by our measurements is 0.22 M_sun/yr. We demonstrate that the cold dust is more extended than the warm dust in NGC 55--the minor-axis scale heights are 0.32, 0.43, and 0.49 kpc at 24, 70 and 160 micron, respectively. The dust temperature map shows a range of temperatures that are well-correlated with the 24 micron surface brightness, from 20 K in low-surface-brightness regions to 26 K in high-surface-brightness regions., Comment: 5 pages, 6 figures, accepted to ApJS
Published: 2004
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305. Spatially Resolved Ultraviolet, H-alpha, Infrared, and Radio Star Formation in M81

Author: P. N. Appleton, A. Alonso-Herrero, Karl D. Gordon, D. Calzetti, D. M. Kelly, Daniel A. Dale, J. E. Morrison, James Muzerolle, George Helou, Jd Smith, Michael W. Regan, Lisa J. Storrie-Lombardi, Karl Misselt, George J. Bendo, Dave Frayer, Fabian Walter, Dean C. Hines, Kate Y. L. Su, Joannah L. Hinz, Bruce T. Draine, Erick T. Young, C. W. Engelbracht, Eric J. Murphy, George H. Rieke, Robert C. Kennicutt, Susan R. Stolovy, Pablo G. Pérez-González, Michele D. Thornley, and J. A. Stansberry
Subjects: Physics, Spiral galaxy, Infrared, Star formation, Attenuation, Radio star, Astrophysics (astro-ph), FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, medicine.disease_cause, Galaxy, Space and Planetary Science, medicine, H-alpha, Ultraviolet
Abstract: We present Multiband Imaging Photometer for Spitzer (MIPS) observations of M81 at 24, 70, and 160 micron. The grand design nature of M81 is clearly seen, showing two well resolved spiral arms containing numerous bright star forming regions. The MIPS images reveal a significant amount of cold dust associated with the spiral arms. We investigate the variation of the ultraviolet (UV), H-alpha, and infrared (IR) luminosities and star formation rate (SFR) indicators across the face of M81 using the MIPS images and archival UV and H-alpha images. For regions in M81, we find that UV and H-alpha SFRs (uncorrected for dust attenuation) are always lower than the IR SFR. The cause of this behavior is dust attenuation and/or using SFR calibrations appropriate for entire galaxies, not regions in galaxies. The characteristics of the dust attenuation for the regions indicate the dust grains and/or geometry are different from those in starburst galaxies. The behavior of the infrared-radio correlation in M81 is seen to vary from the global average, with variations correlated with the morphology of M81., Comment: 7 pages, 6 embedded figures, paper with full resolution figures available at http://dirty.as.arizona.edu/~kgordon/papers/PS_files/m81_mips.pdf
Published: 2004
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306. Observation of theDsJ(2317)andDsJ(2457)inBDecays

Author: P. Krokovny, K. Abe, T. Abe, I. Adachi, H. Aihara, K. Akai, M. Akatsu, M. Akemoto, Y. Asano, T. Aso, T. Aushev, A. M. Bakich, I. Bedny, P. K. Behera, I. Bizjak, A. Bondar, M. Bračko, T. E. Browder, B. C. K. Casey, Y. Chao, B. G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, Y. K. Choi, A. Chuvikov, L. Y. Dong, J. Dragic, S. Eidelman, V. Eiges, Y. Enari, J. Flanagan, N. Gabyshev, A. Garmash, T. Gershon, B. Golob, R. Guo, C. Hagner, F. Handa, N. C. Hastings, H. Hayashii, M. Hazumi, L. Hinz, T. Hokuue, Y. Hoshi, W.-S. Hou, H.-C. Huang, Y. Igarashi, H. Ikeda, A. Ishikawa, R. Itoh, H. Iwasaki, M. Iwasaki, H. K. Jang, T. Kamitani, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, E. Kikutani, D. W. Kim, H. J. Kim, Hyunwoo Kim, J. H. Kim, K. Kinoshita, H. Koiso, P. Koppenburg, S. Korpar, P. Križan, A. Kuzmin, Y.-J. Kwon, J. S. Lange, S. H. Lee, T. Lesiak, A. Limosani, S.-W. Lin, J. MacNaughton, G. Majumder, F. Mandl, M. Masuzawa, T. Matsumoto, S. Michizono, Y. Mikami, W. Mitaroff, H. Miyata, D. Mohapatra, G. R. Moloney, T. Nagamine, Y. Nagasaka, T. Nakadaira, T. T. Nakamura, E. Nakano, M. Nakao, H. Nakazawa, J. W. Nam, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, Y. Ogawa, Y. Ohnishi, T. Ohshima, N. Ohuchi, K. Oide, T. Okabe, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, H. Palka, C. W. Park, H. Park, K. S. Park, N. Parslow, L. E. Piilonen, N. Root, M. Rozanska, H. Sagawa, S. Saitoh, Y. Sakai, T. R. Sarangi, A. Satpathy, O. Schneider, C. Schwanda, A. J. Schwartz, S. Semenov, M. E. Sevior, H. Shibuya, T. Shidara, V. Sidorov, J. B. Singh, N. Soni, S. Stanič, A. Sugi, K. Sumisawa, T. Sumiyoshi, S. Suzuki, F. Takasaki, K. Tamai, N. Tamura, J. Tanaka, M. Tanaka, M. Tawada, Y. Teramoto, T. Tomura, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. E. Varvell, C. H. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, N. Yamamoto, Y. Yamashita, M. Yamauchi, H. Yanai, Y. Yuan, C. C. Zhang, Z. P. Zhang, V. Zhilich, and D. Žontar
Subjects: Physics, Nuclear physics, KEKB, Electron–positron annihilation, General Physics and Astronomy, Atomic physics, Bar (unit)
Abstract: We report the first observation of the B-->(D) over barD(sJ)(2317) and B-->(D) over barD(sJ)(2457) decays based on 123.8x10(6) B (B) over bar events collected with the Belle detector at KEKB. We observe the D-sJ(2317) decay to D(s)pi(0) and the D-sJ(2457) decay to the D(s)(*)pi(0) and D(s)gamma final states. We also set 90% C.L. upper limits for the decays D-sJ(2317)-->D-s*gamma, D-sJ(2457)-->D-s*gamma, D-sJ(2457)-->D(s)pi(0), and D-sJ(2457)-->D(s)pi(+)pi(-).
Published: 2003
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307. Search forB0→l+l−at the Belle detector

Author: T. Iijima, V.A. Sidorov, M. H. Tanaka, T. Tomura, K. F. Chen, Hiroyuki Sagawa, S. Ogawa, I. Bedny, J. Li, L. E. Piilonen, P. Pakhlov, S. Uehara, H. Nakazawa, G. Gokhroo, L. Y. Dong, A. J. Schwartz, Y. Choi, Daniel Robert Marlow, T. Aso, A. Bozek, Y. B. Hsiung, T. Aushev, S. L. Olsen, A.S. Kuzmin, Y. Chao, Masashi Hazumi, R. Chistov, H. Ozaki, H. Miyake, Antonio Limosani, S. H. Lee, T. R. Sarangi, M. C. Chang, N. Parslow, Y. Iwasaki, S. Nishida, H. Kawai, S.I. Eidelman, Y. J. Kwon, M. Iwasaki, B. Golob, O. Schneider, C. C. Wang, N. Soni, T. Sumiyoshi, E. Nakano, Z. Natkaniec, T. Ohshima, Takehiko Mori, M. Akatsu, C. H. Wang, Yasushi Nagasaka, H. J. Kim, H. Miyata, I. Adachi, K. Ueno, T. Hokuue, M. Starič, Y. Hoshi, Seong Keun Kim, Kazuo Abe, B. D. Yabsley, T. Hara, Y. Asano, P. Krokovny, N. Gabyshev, H. Yanai, You-Jin Yuan, Y. Sakai, S. Okuno, Yasuhiko Yamada, A. Bondar, M. Rozanska, J. Schümann, W. S. Hou, A. Yamaguchi, Jasvinder A. Singh, S. W. Lin, S. Korpar, Jolanta Brodzicka, J. S. Kang, Takuya Higuchi, T. E. Browder, D. Žontar, V.N. Zhilich, D. Mohapatra, T. Abe, V.M. Aulchenko, Patrick Koppenburg, S. Semenov, W. A. Mitaroff, Y. Yusa, H. Shibuya, Y. Teramoto, J. Ying, N. Tamura, T. Okabe, Young-Il Choi, V. Eiges, A. Sugi, Y. Watanabe, O. Nitoh, H. K. Park, H. Kichimi, M. Bračko, Y. Yamashita, K. Inami, P. Chang, Hiroaki Aihara, Jung-Hyun Kim, T. Tsuboyama, T. Nagamine, H. C. Huang, T. Lesiak, Zhenyu Zhang, H. Hayashii, T. Ziegler, S. K. Choi, M. Z. Wang, K. Kinoshita, S. Saitoh, T. J. Gershon, F. Mandl, B. Shwartz, Chikara Fukunaga, M. E. Sevior, S. Noguchi, W. Ostrowicz, S. Uno, Hiroyuki Iwasaki, T. Tsukamoto, M. Nakao, Byung Gu Cheon, A. Chuvikov, I. Bizjak, G. S. Varner, R. Itoh, M. Yamauchi, T. Kawasaki, S. Stanič, P. Kapusta, A. Ishikawa, F. Takasaki, Ju Hwan Kang, S. Y. Suzuki, K. Sumisawa, Kevin Varvell, L. Hinz, Akira Sugiyama, A. Matyja, T. Matsumoto, A. M. Bakich, and J. MacNaughton
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, KEKB, Detector
Abstract: We report the results of a search for the decay B-0-->e(+)e(-), mu(+)mu(-) and e(+/-)mu(-/+) based on an analysis of 78 fb(-1) of data collected by the Belle detector at KEKB. No candidate events have been found. Upper limits on the branching fractions are calculated at the 90% confidence level: B(B-0-->e(+)e(-)) B(B-0-->mu(+)mu(-)) e(+/-)mu(-/+)) 46 TeV/c(2) is obtained at the 90% confidence level.
Published: 2003
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308. Evidence forB0→π0π0

Author: J. Tanaka, Osamu Tajima, Gobinda Majumder, Hiroyuki Iwasaki, H. Ozaki, K. Neichi, T. Tsukamoto, M. D. Peters, O. Nitoh, S. H. Lee, T. Igaki, Hiroshi Sakamoto, Hiroaki Aihara, Y. Yamashita, S. Schrenk, K. Korotushenko, A. Tchouvikov, Rong-Shyang Lu, G. R. Moloney, T. Nagamine, H. C. Huang, M. Grosse Perdekamp, N. Tamura, K. Hoshina, S. Noguchi, Y. Ushiroda, M. H. Tanaka, M. Shimoyama, S. Uno, S. E. Vahsen, C. Schwanda, N.I. Root, Y. Miyabayashi, Hiroyuki Sagawa, J. Kaneko, H. Yamamoto, Y. Kawakami, R. Guo, M. C. Chang, S. Nishida, Ascelin Gordon, S. U. Kataoka, A. Sugi, H. Fujii, J. P. Perroud, K. Hasuko, T. Iijima, Y. Onuki, L. Y. Dong, H. Kakuno, Hikaru Kawai, T. Nakadaira, E. Kurihara, Akito Kusaka, M. Kataoka, F. Ohno, C. W. Park, E. Won, P. Chang, Hyun Woo Kim, Jie Zhang, Masashi Yokoyama, E. Nakano, V.A. Sidorov, V. M. Aulchenko, Y. Ban, Jung-Hyun Kim, Y. Yusa, Daniel Robert Marlow, G. F. Moorhead, K. Trabelsi, H. K. Jang, P. Krokovny, T. Tomura, K. Senyo, Patrick Koppenburg, K. Inami, D. Mohapatra, Kyo Yoshida, J. B. Singh, Masashi Hazumi, S. K. Choi, K. Ueno, T. Kawasaki, D. Zurcher, Y. Iwasaki, V. Siegle, Y. J. Kwon, T. Sumiyoshi, H. O. Kim, R. Kagan, A. Yamaguchi, Tapas Sarangi, Frederic Jean Ronga, Takahiko Matsubara, D. Epifanov, Shaji Kumar, S. Tokuda, Kevin Varvell, Y. Chao, F. Handa, H. Miyake, S. Eidelman, Y. Settai, I. Bedny, J. Li, S. W. Lin, J. Yashima, N. Parslow, M. Iwamoto, B. Shwartz, Chikara Fukunaga, Seema Bahinipati, J. W. Nam, T. J. Gershon, P. Krizan, P. Pakhlov, D. Liventsev, O. Schneider, Z.M. Zhu, Yasuhiko Yamada, K. S. Park, Y. Choi, M. Yamauchi, T. Hojo, J. G. Wang, A. Satpathy, A. Matyja, Ilija Bizjak, T. Hara, H. Hayashii, N. Abe, Hyunyong Kim, R. Abe, M. Rozanska, H. Guler, M. Iwasaki, A.E. Bondar, H. Palka, T. Uglov, H. Sakaue, L. E. Piilonen, S. L. Olsen, G. S. Varner, B. G. Cheon, A. Ishikawa, T. Aushev, W. S. Hou, N. Soni, R. Kulasiri, A. Bay, Kazuo Abe, M. Z. Wang, K. Kinoshita, S. Saitoh, H. Yanai, Y. Asano, P. Kapusta, N. Kawamura, S. Okuno, S. K. Kim, J. Dragic, R. Itoh, Y. Mikami, E. M. Heenan, T. Mori, Makoto Tomoto, H. Park, A. Ogawa, A. Bozek, F. Fang, Tsukasa Aso, S. K. Swain, Heejong Kim, G. N. Taylor, T. Abe, R. Dowd, J. S. Kang, J. Haba, Takuya Higuchi, Antonio Limosani, S. Narita, T. Nozaki, M. Starič, Kei Suzuki, James Mueller, A. Drutskoy, Y. Teramoto, Bruce Yabsley, F. Takasaki, S. Korpar, R. Chistov, S. Y. Suzuki, Jolanta Brodzicka, Elzbieta Banas, T. Okabe, S. Banerjee, S. Kobayashi, L. Widhalm, T. E. Browder, Yuji Enari, A. Kibayashi, M. Dash, L. S. Peak, Y. Unno, K. Sumisawa, Y. Igarashi, M. Asai, L.C. Moffitt, K. Takahashi, B. Golob, K. Tanabe, K. Uchida, K. F. Chen, Y. Zheng, J. S. Lange, L. Hinz, Heyoung Yang, N. Uozaki, J. MacNaughton, M. Danilov, Byoung Sup Ahn, P. Yeh, A. Garmash, Hirokazu Ishino, T. Hokuue, K. Hara, C. C. Wang, Z. P. Zhang, B. Takeshita, A. Kuzmin, N. Katayama, Rolf Seuster, T. Matsumoto, M. Pernicka, T. Seki, Yasushi Nagasaka, S. Ogawa, I. Adachi, H. Yuta, H. Nakazawa, G. Gokhroo, M. Akatsu, A. J. Schwartz, E.A. Dodson, C.W. Everton, D. Zontar, V.N. Zhilich, S. Semenov, W. A. Mitaroff, I. Higuchi, Y. Tamai, Young-Il Choi, K. Miyabayashi, Y. B. Hsiung, Hideyuki Kawai, H. Matsumoto, T. A. Shibata, H. Miyata, M. Nakao, Prafulla Kumar Behera, N. C. Hastings, Y. Hoshi, Y. Sakai, J. Schümann, T.H. Kim, D. W. Kim, N. Kent, Y. Watanabe, J. H. Kang, H. Kichimi, Caren Hagner, T. Tsuboyama, T. Lesiak, A. Sugiyama, T. Matsuishi, G. Leder, F. Mandl, K. Tamai, M. E. Sevior, S. Matsumoto, M. Satapathy, A. Murakami, T. Ziegler, Y. Harada, M. Bračko, Sadaharu Uehara, T. Yamanaka, Samo Stanič, Shigeki Mori, A. M. Bakich, Z. Natkaniec, T. Ohshima, S.N. Tovey, Koya Abe, N. Gabyshev, You-Jin Yuan, W. Ostrowicz, C. H. Wang, C. C. Zhang, H. Shibuya, M. Watanabe, and V. Eiges
Subjects: Physics, Particle physics, KEKB, Branching fraction, Electron–positron annihilation, Pi, General Physics and Astronomy, Resonance
Abstract: We report evidence for the decay $B^0 \to \pi^0 \pi^0$. The analysis is based on a data sample of 152 million $B\bar{B}$ pairs collected at the $\Upsilon(4s)$ resonance with the Belle detector at the KEKB $e^+ e^-$ storage ring. We find $25.6^{+ 9.3}_{-8.4}(stat)^{+1.6}_{-1.4}(syst)$ $B^0 \to \pi^0 \pi^0$ signal events with a significance of 3.4 standard deviations. We measure the branching fraction to be ($1.7 \pm 0.6 (stat) \pm 0.2 (syst))*10^{-6}$.
Published: 2003
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309. Observation ofB→K*ℓ+ℓ−

Author: A. Ishikawa, K. Abe, T. Abe, I. Adachi, Byoung Sup Ahn, H. Aihara, K. Akai, M. Akatsu, M. Akemoto, Y. Asano, T. Aso, V. Aulchenko, T. Aushev, A. M. Bakich, Y. Ban, A. Bay, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, T. E. Browder, P. Chang, Y. Chao, K.-F. Chen, B. G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, Y. K. Choi, A. Chuvikov, M. Danilov, L. Y. Dong, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, J. Flanagan, C. Fukunaga, Y. Funakoshi, K. Furukawa, N. Gabyshev, A. Garmash, T. Gershon, B. Golob, R. Guo, J. Haba, C. Hagner, F. Handa, H. Hayashii, M. Hazumi, L. Hinz, T. Hokuue, Y. Hoshi, W.-S. Hou, Y. B. Hsiung, H.-C. Huang, T. Iijima, K. Inami, R. Itoh, H. Iwasaki, M. Iwasaki, Y. Iwasaki, J. H. Kang, J. S. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, E. Kikutani, H. J. Kim, Hyunwoo Kim, J. H. Kim, S. K. Kim, K. Kinoshita, P. Koppenburg, S. Korpar, P. Križan, P. Krokovny, A. Kuzmin, Y.-J. Kwon, J. S. Lange, G. Leder, S. H. Lee, T. Lesiak, J. Li, A. Limosani, S.-W. Lin, D. Liventsev, J. MacNaughton, G. Majumder, F. Mandl, M. Masuzawa, T. Matsumoto, A. Matyja, S. Michizono, T. Mimashi, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, D. Mohapatra, T. Mori, T. Nagamine, Y. Nagasaka, T. Nakadaira, T. T. Nakamura, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, Y. Ogawa, K. Ohmi, Y. Ohnishi, T. Ohshima, N. Ohuchi, T. Okabe, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, H. Palka, C. W. Park, H. Park, N. Parslow, L. S. Peak, L. E. Piilonen, N. Root, H. Sagawa, S. Saitoh, Y. Sakai, T. R. Sarangi, M. Satapathy, A. Satpathy, O. Schneider, J. Schümann, C. Schwanda, A. J. Schwartz, S. Semenov, K. Senyo, R. Seuster, M. E. Sevior, H. Shibuya, T. Shidara, V. Sidorov, J. B. Singh, N. Soni, S. Stanič, M. Starič, A. Sugi, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, S. Suzuki, S. Y. Suzuki, S. K. Swain, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, M. Tawada, G. N. Taylor, Y. Teramoto, T. Tomura, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, S. Uno, G. Varner, C. C. Wang, C. H. Wang, J. G. Wang, M.-Z. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, Y. Yamashita, M. Yamauchi, H. Yanai, Heyoung Yang, J. Ying, M. Yoshida, Y. Yusa, Z. P. Zhang, V. Zhilich, and D. Žontar
Subjects: Nuclear physics, Physics, Muon, KEKB, Electron–positron annihilation, Analytical chemistry, General Physics and Astronomy
Abstract: We report the observation of the flavor-changing neutral current decay B-->K*l(+l-) and an improved measurement of the decay B-->Kl(+l-), where l represents an electron or a muon, with a data sample of 140 fb(-1) accumulated at the Y(4S) resonance with the Belle detector at KEKB. The results for the branching fractions are B(B-->K*l(+l-))=(11.5(-2.4)(+2.6)+/-0.8+/-0.2)x10(-7) and B(B-->Kl(+l-))=(4.8(-0.9)(+1.0)+/-0.3+/-0.1)x10(-7), where the first error is statistical, the second is systematic and the third is from model dependence.
Published: 2003
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310. Observation of a Narrow Charmoniumlike State in ExclusiveB±→K±π+π−J/ψDecays

Author: Hiroyuki Sagawa, Katsunobu Oide, H. Yanai, Kazuo Abe, B. D. Yabsley, T. Hara, Y. Asano, S. Okuno, M. Yoshida, T. Abe, T. E. Browder, T. Aushev, K. Ohmi, Yong Ban, Takashi Nakamura, Y. Teramoto, I. Adachi, M. Starič, T. Okabe, M. Nakao, M. Danilov, A. Ishikawa, T. Sumiyoshi, T. Nakadaira, D. Mohapatra, T. Nozaki, F. Takasaki, P. Križan, H. J. Kim, N. Parslow, Norihito Ohuchi, O. Nitoh, A. M. Bakich, Z. Natkaniec, T. Ohshima, A. Satpathy, Yasuhiko Yamada, P. Chang, M. Iwasaki, B. Golob, O. Schneider, G. Leder, K. F. Chen, Y. Unno, Jung-Hyun Kim, Masafumi Tawada, F. Mandl, A. J. Schwartz, S. Y. Suzuki, Hyunwoo Kim, A. Bozek, K. Tamai, S. Uehara, M. E. Sevior, S. L. Olsen, N. Katayama, N. C. Hastings, Y. Hoshi, T. Iijima, Hiroaki Aihara, G. R. Moloney, Rolf Seuster, Suyong Choi, A. Drutskoy, J. H. Kang, Tetsuo Shidara, N. Gabyshev, C. C. Zhang, Y. Chao, H. Miyake, Toshihiro Mimashi, W. Ostrowicz, M. Satapathy, H. Shibuya, L. Hinz, S. Nishida, Y. Sakai, Akira Sugiyama, Zhenyu Zhang, Shinichiro Michizono, V.A. Sidorov, D. Žontar, A. Bondar, K. Ueno, S. Korpar, V. Eiges, Masashi Hazumi, Jolanta Brodzicka, H. K. Park, Y. Yamashita, L. Y. Dong, T. R. Sarangi, H. Palka, S. Semenov, L. E. Piilonen, E. Won, K. Trabelsi, Kazuro Furukawa, J. G. Wang, Daniel Robert Marlow, W. A. Mitaroff, Eiji Kikutani, Seong Keun Kim, C. Hagner, Young-Il Choi, Semen Eidelman, Y. Watanabe, K. Miyabayashi, H. Kichimi, Gobinda Majumder, K. Inami, T. J. Gershon, A. Yamaguchi, T. Tsukamoto, T. Nagamine, Yukiyoshi Ohnishi, S. W. Lin, H. C. Huang, P. Krokovny, T. Lesiak, R. Chistov, K. Senyo, N. Tamura, W. S. Hou, T. Kawasaki, S. Stanič, K. Kinoshita, S. Saitoh, S. Ogawa, Byung Gu Cheon, J.W. Flanagan, C. C. Wang, D. Liventsev, H. Kawai, B. Shwartz, M. Akemoto, Chikara Fukunaga, M. Akatsu, C. H. Wang, G. N. Taylor, J. Ying, J. S. Lange, Y. B. Hsiung, Yasushi Nagasaka, G. S. Varner, S. Uno, R. Itoh, Tsukasa Aso, R. Guo, H. Hayashii, J. MacNaughton, S. U. Kataoka, Patrick Koppenburg, K. Akai, Kevin Varvell, Heyoung Yang, Haruyo Koiso, T. Matsumoto, Byoung Sup Ahn, Y. Iwasaki, T. Tomura, H. Ozaki, S. H. Lee, V.M. Aulchenko, S. Banerjee, Y. Ogawa, F. Handa, Y. Choi, H. Guler, A.S. Kuzmin, N. Soni, Suneel Kumar, M. Bračko, and M. H. Tanaka
Subjects: Physics, Particle physics, Electron–positron annihilation, General Physics and Astronomy, Resonance, law.invention, Nuclear physics, KEKB, law, Mass spectrum, High Energy Physics::Experiment, Tetraquark, Z(4430), Collider, X(3872)
Abstract: We report the observation of a narrow charmoniumlike state produced in the exclusive decay process B+/--->K+/-pi(+)pi(-)J/psi. This state, which decays into pi(+)pi(-)J/psi, has a mass of 3872.0+/-0.6(stat)+/-0.5(syst) MeV, a value that is very near the M(D0)+M(D(*0)) mass threshold. The results are based on an analysis of 152M B-Bmacr; events collected at the Upsilon(4S) resonance in the Belle detector at the KEKB collider. The signal has a statistical significance that is in excess of 10sigma.
Published: 2003
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311. Evidence forB→ϕϕK

Author: H.-C. Huang, K. Abe, T. Abe, I. Adachi, H. Aihara, M. Akatsu, T. Aso, V. Aulchenko, T. Aushev, A. M. Bakich, Y. Ban, E. Banas, A. Bay, I. Bedny, P. K. Behera, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, T. E. Browder, B. C. K. Casey, P. Chang, Y. Chao, K.-F. Chen, B. G. Cheon, R. Chistov, Y. Choi, Y. K. Choi, M. Danilov, L. Y. Dong, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, C. Fukunaga, N. Gabyshev, A. Garmash, T. Gershon, B. Golob, R. Guo, J. Haba, F. Handa, T. Hara, N. C. Hastings, H. Hayashii, M. Hazumi, L. Hinz, T. Hokuue, Y. Hoshi, W.-S. Hou, Y. B. Hsiung, Y. Igarashi, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, Y. Iwasaki, H. K. Jang, J. H. Kang, J. S. Kang, P. Kapusta, N. Katayama, H. Kawai, N. Kawamura, T. Kawasaki, H. Kichimi, D. W. Kim, H. J. Kim, Hyunwoo Kim, J. H. Kim, K. Kinoshita, P. Koppenburg, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, S. Kumar, Y.-J. Kwon, G. Leder, S. H. Lee, T. Lesiak, J. Li, A. Limosani, S.-W. Lin, D. Liventsev, J. MacNaughton, G. Majumder, F. Mandl, D. Marlow, H. Matsumoto, T. Matsumoto, W. Mitaroff, H. Miyata, G. R. Moloney, T. Mori, T. Nagamine, Y. Nagasaka, T. Nakadaira, E. Nakano, M. Nakao, H. Nakazawa, J. W. Nam, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, H. Palka, C. W. Park, H. Park, K. S. Park, N. Parslow, J.-P. Perroud, M. Peters, L. E. Piilonen, M. Rozanska, H. Sagawa, S. Saitoh, Y. Sakai, T. R. Sarangi, A. Satpathy, O. Schneider, J. Schümann, C. Schwanda, A. J. Schwartz, T. Seki, S. Semenov, M. E. Sevior, T. Shibata, H. Shibuya, V. Sidorov, J. B. Singh, S. Stanič, M. Starič, A. Sugi, K. Sumisawa, T. Sumiyoshi, S. Suzuki, S. Y. Suzuki, T. Takahashi, F. Takasaki, K. Tamai, N. Tamura, J. Tanaka, M. Tanaka, G. N. Taylor, Y. Teramoto, T. Tomura, S. N. Tovey, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, S. Uno, G. Varner, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, M.-Z. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, Y. Yamashita, M. Yamauchi, H. Yanai, Heyoung Yang, Y. Yusa, C. C. Zhang, Z. P. Zhang, Y. Zheng, V. Zhilich, and D. Žontar
Subjects: General Physics and Astronomy
Published: 2003
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312. Observation ofB∓→ρ∓ρ0Decays

Author: S. K. Swain, A. Bondar, S. Korpar, V.N. Zhilich, Hiroyuki Sagawa, D. Mohapatra, S. Semenov, W. A. Mitaroff, O. Nitoh, J. B. Singh, S. K. Choi, Ascelin Gordon, Young-Il Choi, L. Y. Dong, S. U. Kataoka, B. C. K. Casey, M. Starič, E. Won, T. J. Gershon, Daniel Robert Marlow, T. Tomura, K. Miyabayashi, M. Tanaka, Patrick Koppenburg, Hyunwoo Kim, T. Shibata, T. Nakadaira, P. Chang, Y. Iwasaki, Y. J. Kwon, Jung-Hyun Kim, H. J. Kim, J. W. Nam, N. Tamura, J. Li, S. Nishida, J. H. Kang, D. Liventsev, T. E. Browder, J. P. Perroud, T. Nozaki, Kazuo Abe, B. D. Yabsley, I. Bizjak, G. S. Varner, Y. Asano, S. Okuno, A. Garmash, T. Abe, W. S. Hou, D. Žontar, M. Danilov, P. Krokovny, R. Itoh, G. Leder, H. K. Jang, Tsukasa Aso, H. Ozaki, Chikara Fukunaga, N. Kawamura, Y. Teramoto, H. Kawai, Heyoung Yang, K. Trabelsi, F. Mandl, T. Mori, K. Tamai, Elzbieta Banas, T. Okabe, M. E. Sevior, T. Hokuue, A. J. Schwartz, Y. Zheng, S. H. Lee, Y. Chao, Shaji Kumar, S. Y. Suzuki, S. Uehara, Yasushi Nagasaka, T. Aushev, J. Zhang, N. Katayama, V. M. Aulchenko, K. Sumisawa, J. G. Wang, O. Schneider, S. Eidelman, D. W. Kim, S. Bahinipati, Rolf Seuster, Antonio Limosani, L. Hinz, A. Satpathy, K. Senyo, K. S. Park, Y. Watanabe, Yuji Enari, T. Kawasaki, D. Zurcher, I. Adachi, T. Tsuboyama, Y. B. Hsiung, H. Park, A. Bozek, Y. Ban, T. Lesiak, S. L. Olsen, H. Matsumoto, Y. Igarashi, Motoki Iwasaki, R. Guo, A. Kuzmin, A. Drutskoy, S. Ogawa, Masashi Hazumi, T. R. Sarangi, C. C. Wang, J. Dragic, M. Akatsu, Yasuhiko Yamada, Gobinda Majumder, Hiroyuki Iwasaki, J. S. Kang, H. Yanai, S. K. Kim, T. Tsukamoto, H. Miyata, Prafulla Kumar Behera, T. Takahashi, N. C. Hastings, Y. Hoshi, Y. Yusa, A. Ishikawa, F. Handa, Byung Gu Cheon, J. Schümann, F. Takasaki, Y. Choi, T. Hara, P. Križan, S. Uno, C. Schwanda, Kevin Varvell, A. Matyja, H. Aihara, Z. P. Zhang, T. Matsumoto, M. Nakao, J. MacNaughton, K. Inami, H. Hayashii, M. Z. Wang, K. Kinoshita, S. Saitoh, E. Nakano, T. Iijima, V.A. Sidorov, A. Yamaguchi, S. W. Lin, L. E. Piilonen, R. Kulasiri, R. Chistov, S. N. Tovey, Y. Yamashita, T. Sumiyoshi, M. Bračko, T. Nagamine, H. C. Huang, N. Parslow, H. Shibuya, V. Eiges, W. Ostrowicz, A. Sugi, A. M. Bakich, Z. Natkaniec, T. Ohshima, N. Gabyshev, Samo Stanič, C. H. Wang, M. Yamauchi, M. Rozanska, Y. Sakai, and G. N. Taylor
Subjects: Physics, KEKB, Angular distribution, Branching fraction, Electron–positron annihilation, Analytical chemistry, General Physics and Astronomy, CP violation, High Energy Physics::Experiment
Abstract: We report the first observation of the charmless vector-vector decay process B-/+-->rho(-/+)rho(0). The measurement uses a 78 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric e(+)e(-) collider operating at the Y(4S) resonance. We obtain a branching fraction of B (B-/+-->rho(-/+)rho(0))=[31.7+/-7.1(stat)(-6.7)(+3.8)(syst)]x10(-6). An analysis of the rho helicity-angle distributions gives a longitudinal polarization fraction of Gamma(L)/Gamma=0.95+/-0.11(stat)+/-0.02(syst). We also measure the direct-CP-violating asymmetry A(CP)(B-/+-->rho(-/+)rho(0))=0.00+/-0.22(stat)+/-0.03(syst).
Published: 2003
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313. Measurement of /V(ub)/ using inclusive B--X(u)lnu decays with a novel X(u)-reconstruction method

Author: H, Kakuno, K, Abe, I, Adachi, H, Aihara, Y, Asano, T, Aso, V, Aulchenko, T, Aushev, A M, Bakich, Y, Ban, S, Banerjee, I, Bizjak, A, Bondar, A, Bozek, M, Bracko, T E, Browder, Y, Chao, B G, Cheon, R, Chistov, S-K, Choi, Y, Choi, Y K, Choi, A, Chuvikov, S, Cole, M, Danilov, M, Dash, L Y, Dong, J, Dragic, A, Drutskoy, S, Eidelman, V, Eiges, N, Gabyshev, A, Garmash, T, Gershon, G, Gokhroo, B, Golob, J, Haba, C, Hagner, T, Hara, M, Hazumi, I, Higuchi, L, Hinz, T, Hokuue, Y, Hoshi, W-S, Hou, H-C, Huang, T, Iijima, K, Inami, A, Ishikawa, R, Itoh, H, Iwasaki, Y, Iwasaki, J H, Kang, J S, Kang, P, Kapusta, N, Katayama, H, Kawai, T, Kawasaki, H, Kichimi, H J, Kim, J H, Kim, K, Kinoshita, S, Korpar, P, Krizan, P, Krokovny, Y-J, Kwon, G, Leder, S H, Lee, T, Lesiak, J, Li, A, Limosani, S-W, Lin, J, MacNaughton, F, Mandl, A, Matyja, Y, Mikami, W, Mitaroff, K, Miyabayashi, H, Miyata, G R, Moloney, T, Mori, T, Nagamine, Y, Nagasaka, T, Nakadaira, E, Nakano, M, Nakao, H, Nakazawa, Z, Natkaniec, S, Nishida, O, Nitoh, T, Nozaki, S, Ogawa, T, Ohshima, S, Okuno, S L, Olsen, W, Ostrowicz, H, Ozaki, P, Pakhlov, C W, Park, H, Park, K S, Park, N, Parslow, L S, Peak, L E, Piilonen, H, Sagawa, S, Saitoh, Y, Sakai, O, Schneider, A J, Schwartz, S, Semenov, K, Senyo, M E, Sevior, H, Shibuya, B, Shwartz, V, Sidorov, J B, Singh, N, Soni, S, Stanic, M, Staric, A, Sugiyama, T, Sumiyoshi, S Y, Suzuki, O, Tajima, F, Takasaki, K, Tamai, M, Tanaka, Y, Teramoto, T, Tomura, T, Tsuboyama, T, Tsukamoto, S, Uehara, K, Ueno, T, Uglov, Y, Unno, S, Uno, G, Varner, K E, Varvell, C C, Wang, C H, Wang, J G, Wang, M-Z, Wang, M, Watanabe, Y, Watanabe, B D, Yabsley, Y, Yamada, A, Yamaguchi, H, Yamamoto, Y, Yamashita, M, Yamauchi, H, Yanai, Heyoung, Yang, Y, Yuan, Y, Yusa, J, Zhang, Z P, Zhang, V, Zhilich, and D, Zontar
Abstract: We report the measurement of an inclusive partial branching fraction for charmless semileptonic B decay and the extraction of /V(ub)/. Candidates for B--X(u)lnu are identified with a novel X(u) reconstruction method based on neutrino reconstruction via missing 4-momentum and a technique called "simulated annealing." Based on 86.9 fb(-1) of data taken with the Belle detector, we obtain DeltaB(B--X(u)lnu;M(X)1.7 GeV/c2,q28.0 GeV2/c2)=[7.37+/-0.89(stat)+/-1.12(syst)+/-0.55(b--c)+/-0.24(b--u)]x10(-4) and determine |V(ub)|=[4.66+/-0.28(stat)+/-0.35(syst)+/-0.17(b--c)+/-0.08(b--u)+/-0.58(theory)]x10(-3).
Published: 2003

314. Measurement of Branching Fractions and Polarization inB→φK(*)Decays

Author: K.-F. Chen, A. Bozek, K. Abe, T. Abe, I. Adachi, H. Aihara, M. Akatsu, Y. Asano, T. Aso, A. M. Bakich, Y. Ban, E. Banas, A. Bay, P. K. Behera, I. Bizjak, A. Bondar, M. Bračko, J. Brodzicka, T. E. Browder, B. C. K. Casey, M.-C. Chang, P. Chang, Y. Chao, B. G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, Y. K. Choi, M. Danilov, M. Dash, L. Y. Dong, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, C. Fukunaga, N. Gabyshev, A. Garmash, T. Gershon, B. Golob, R. Guo, J. Haba, C. Hagner, F. Handa, H. Hayashii, M. Hazumi, T. Higuchi, L. Hinz, T. Hokuue, Y. Hoshi, W.-S. Hou, Y. B. Hsiung, H.-C. Huang, Y. Igarashi, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, H. Iwasaki, Y. Iwasaki, H. K. Jang, M. Jones, J. H. Kang, J. S. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, D. W. Kim, Hyunwoo Kim, J. H. Kim, S. K. Kim, K. Kinoshita, P. Koppenburg, S. Korpar, P. Krokovny, A. Kuzmin, Y.-J. Kwon, J. S. Lange, S. H. Lee, T. Lesiak, J. Li, A. Limosani, S.-W. Lin, J. MacNaughton, F. Mandl, D. Marlow, H. Matsumoto, T. Matsumoto, A. Matyja, W. Mitaroff, H. Miyake, H. Miyata, D. Mohapatra, T. Mori, T. Nagamine, T. Nakadaira, E. Nakano, M. Nakao, J. W. Nam, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, H. Palka, C. W. Park, H. Park, K. S. Park, N. Parslow, L. S. Peak, M. Peters, L. E. Piilonen, N. Root, M. Rozanska, H. Sagawa, S. Saitoh, Y. Sakai, T. R. Sarangi, M. Satapathy, A. Satpathy, O. Schneider, J. Schümann, A. J. Schwartz, S. Semenov, K. Senyo, M. E. Sevior, V. Sidorov, J. B. Singh, S. Stanič, M. Starič, A. Sugi, K. Sumisawa, T. Sumiyoshi, S. Suzuki, T. Takahashi, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, Y. Teramoto, T. Tomura, T. Tsuboyama, T. Tsukamoto, K. Ueno, Y. Unno, S. Uno, Y. Ushiroda, G. Varner, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, M.-Z. Wang, M. Watanabe, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, Y. Yamashita, M. Yamauchi, H. Yanai, P. Yeh, M. Yokoyama, Y. Yusa, C. C. Zhang, J. Zhang, Z. P. Zhang, Y. Zheng, V. Zhilich, and D. Žontar
Subjects: Physics, Particle physics, KEKB, Electron–positron annihilation, General Physics and Astronomy, Polarization (waves), Helicity
Abstract: We present the first measurement of decay amplitudes in $B\ensuremath{\rightarrow}\ensuremath{\varphi}{K}^{*}$ and measurements of branching fractions in $B\ensuremath{\rightarrow}\ensuremath{\varphi}{K}^{(*)}$ decays based on $78.1\text{ }{\mathrm{f}\mathrm{b}}^{\ensuremath{-}1}$ of data recorded at the $\ensuremath{\Upsilon}(4S)$ resonance with the Belle detector at the KEKB ${e}^{+}{e}^{\ensuremath{-}}$ storage ring. The decay amplitudes for the different $\ensuremath{\varphi}{K}^{*0}$ helicity states are measured from the angular distributions of final state particles in the transversity basis. The longitudinal and transverse complex amplitudes are $|{A}_{0}{|}^{2}=0.43\ifmmode\pm\else\textpm\fi{}0.09\ifmmode\pm\else\textpm\fi{}0.04$, $|{A}_{\ensuremath{\perp}}{|}^{2}=0.41\ifmmode\pm\else\textpm\fi{}0.10\ifmmode\pm\else\textpm\fi{}0.04$, $\mathrm{arg} ({A}_{\ensuremath{\parallel}})=\ensuremath{-}2.57\ifmmode\pm\else\textpm\fi{}0.39\ifmmode\pm\else\textpm\fi{}0.09$, and $\mathrm{arg} ({A}_{\ensuremath{\perp}})=0.48\ifmmode\pm\else\textpm\fi{}0.32\ifmmode\pm\else\textpm\fi{}0.06$. The direct $CP$-violating asymmetries are found to be consistent with zero.
Published: 2003
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315. Observation of B--K*l+l

Author: A, Ishikawa, K, Abe, T, Abe, I, Adachi, Byoung Sup, Ahn, H, Aihara, K, Akai, M, Akatsu, M, Akemoto, Y, Asano, T, Aso, V, Aulchenko, T, Aushev, A M, Bakich, Y, Ban, A, Bay, I, Bizjak, A, Bondar, A, Bozek, M, Bracko, T E, Browder, P, Chang, Y, Chao, K-F, Chen, B G, Cheon, R, Chistov, S-K, Choi, Y, Choi, Y K, Choi, A, Chuvikov, M, Danilov, L Y, Dong, A, Drutskoy, S, Eidelman, V, Eiges, Y, Enari, J, Flanagan, C, Fukunaga, Y, Funakoshi, K, Furukawa, N, Gabyshev, A, Garmash, T, Gershon, B, Golob, R, Guo, J, Haba, C, Hagner, F, Handa, H, Hayashii, M, Hazumi, L, Hinz, T, Hokuue, Y, Hoshi, W-S, Hou, Y B, Hsiung, H-C, Huang, T, Iijima, K, Inami, R, Itoh, H, Iwasaki, M, Iwasaki, Y, Iwasaki, J H, Kang, J S, Kang, N, Katayama, H, Kawai, T, Kawasaki, H, Kichimi, E, Kikutani, H J, Kim, Hyunwoo, Kim, J H, Kim, S K, Kim, K, Kinoshita, P, Koppenburg, S, Korpar, P, Krizan, P, Krokovny, A, Kuzmin, Y-J, Kwon, J S, Lange, G, Leder, S H, Lee, T, Lesiak, J, Li, A, Limosani, S-W, Lin, D, Liventsev, J, MacNaughton, G, Majumder, F, Mandl, M, Masuzawa, T, Matsumoto, A, Matyja, S, Michizono, T, Mimashi, W, Mitaroff, K, Miyabayashi, H, Miyake, H, Miyata, D, Mohapatra, T, Mori, T, Nagamine, Y, Nagasaka, T, Nakadaira, T T, Nakamura, M, Nakao, H, Nakazawa, Z, Natkaniec, S, Nishida, O, Nitoh, T, Nozaki, S, Ogawa, Y, Ogawa, K, Ohmi, Y, Ohnishi, T, Ohshima, N, Ohuchi, T, Okabe, S, Okuno, S L, Olsen, W, Ostrowicz, H, Ozaki, H, Palka, C W, Park, H, Park, N, Parslow, L S, Peak, L E, Piilonen, N, Root, H, Sagawa, S, Saitoh, Y, Sakai, T R, Sarangi, M, Satapathy, A, Satpathy, O, Schneider, J, Schümann, C, Schwanda, A J, Schwartz, S, Semenov, K, Senyo, R, Seuster, M E, Sevior, H, Shibuya, T, Shidara, V, Sidorov, J B, Singh, N, Soni, S, Stanic, M, Staric, A, Sugi, A, Sugiyama, K, Sumisawa, T, Sumiyoshi, S, Suzuki, S Y, Suzuki, S K, Swain, F, Takasaki, K, Tamai, N, Tamura, M, Tanaka, M, Tawada, G N, Taylor, Y, Teramoto, T, Tomura, T, Tsuboyama, T, Tsukamoto, S, Uehara, K, Ueno, S, Uno, G, Varner, C C, Wang, C H, Wang, J G, Wang, M-Z, Wang, Y, Watanabe, E, Won, B D, Yabsley, Y, Yamada, A, Yamaguchi, Y, Yamashita, M, Yamauchi, H, Yanai, Heyoung, Yang, J, Ying, M, Yoshida, Y, Yusa, Z P, Zhang, V, Zhilich, and D, Zontar
Abstract: We report the observation of the flavor-changing neutral current decay B--K(*)l(+)l(-) and an im-proved measurement of the decay B--Kl(+)l(-), where l represents an electron or a muon, with a data sample of 140 fb(-1) accumulated at the Upsilon(4S) resonance with the Belle detector at KEKB. The results for the branching fractions are B(B--K(*)l(+)l(-))=(11.5(+2.6)(-2.4)+/-0.8+/-0.2)x10(-7) and B(B--Kl(+)l(-))=(4.8(+1.0)(-0.9)+/-0.3+/-0.1)x10(-7), where the first error is statistical, the second is systematic and the third is from model dependence.
Published: 2003

316. Measurement of branching fraction ratios andCPasymmetries inB±→DCPK±

Author: S. K. Swain, T. E. Browder, K. Abe, T. Abe, I. Adachi, H. Aihara, M. Akatsu, Y. Asano, T. Aso, T. Aushev, S. Bahinipati, A. M. Bakich, Y. Ban, E. Banas, A. Bay, P. K. Behera, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, B. C. K. Casey, M.-C. Chang, Y. Chao, K.-F. Chen, B. G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, Y. K. Choi, M. Danilov, L. Y. Dong, J. Dragic, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, F. Fang, A. Garmash, T. Gershon, B. Golob, R. Guo, J. Haba, T. Hara, H. Hayashii, M. Hazumi, I. Higuchi, T. Higuchi, L. Hinz, T. Hokuue, Y. Hoshi, W.-S. Hou, H.-C. Huang, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, H. Iwasaki, Y. Iwasaki, H. K. Jang, J. H. Kang, J. S. Kang, P. Kapusta, N. Katayama, H. Kawai, N. Kawamura, T. Kawasaki, H. Kichimi, D. W. Kim, H. J. Kim, Hyunwoo Kim, J. H. Kim, S. K. Kim, K. Kinoshita, S. Kobayashi, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, S. Kumar, A. Kuzmin, J. S. Lange, G. Leder, S. H. Lee, J. Li, A. Limosani, S.-W. Lin, D. Liventsev, J. MacNaughton, F. Mandl, H. Matsumoto, T. Matsumoto, A. Matyja, W. Mitaroff, H. Miyata, J. Mueller, T. Nagamine, Y. Nagasaka, E. Nakano, M. Nakao, H. Nakazawa, J. W. Nam, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, P. Pakhlov, H. Palka, C. W. Park, H. Park, K. S. Park, L. S. Peak, J.-P. Perroud, M. Peters, L. E. Piilonen, M. Rozanska, H. Sagawa, Y. Sakai, T. R. Sarangi, M. Satapathy, A. Satpathy, O. Schneider, J. Schümann, A. J. Schwartz, T. Seki, S. Semenov, K. Senyo, R. Seuster, M. E. Sevior, T. Shibata, H. Shibuya, B. Shwartz, J. B. Singh, N. Soni, S. Stanič, M. Starič, A. Sugi, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, K. Suzuki, S. Suzuki, S. Y. Suzuki, T. Takahashi, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, T. Tomura, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, Y. Unno, S. Uno, S. E. Vahsen, G. Varner, K. E. Varvell, C. H. Wang, J. G. Wang, M. Watanabe, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, H. Yamamoto, Y. Yamashita, M. Yamauchi, Heyoung Yang, Y. Yuan, Y. Yusa, C. C. Zhang, J. Zhang, Z. P. Zhang, Y. Zheng, V. Zhilich, D. Žontar, and D. Zürcher
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, KEKB, Branching fraction, Resonance, Charge (physics)
Abstract: We report results on the decay $B^{-} \to D_{CP}K^{-}$ and its charge conjugate using a data sample of 85.4 million $B\bar{B}$ pairs recorded at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric $e^{+}e^{-}$ storage ring. Ratios of branching fractions of Cabibbo-suppressed to Cabibbo-favored processes are determined to be ${\cal B}(B^- \to D^0 K^-)/{\cal B}(B^- \to D^0 \pi^-)= 0.077 \pm 0.005(stat) \pm 0.006(sys)$, ${\cal B}(B^- \to D_1 K^-)/{\cal B}(B^- \to D_1 \pi^-) = 0.093 \pm 0.018(stat) \pm 0.008(sys)$ and ${\cal B}(B^- \to D_2 K^-)/{\cal B}(B^- \to D_2 \pi^-) = 0.108 \pm 0.019(stat) \pm 0.007(sys)$ where the indices 1 and 2 represent the CP=+1 and CP=$-$1 eigenstates of the $D^{0}-\bar{D^{0}}$ system, respectively. We find the partial-rate charge asymmetries for $B^{-} \to D_{CP}K^{-}$ to be ${\cal{A}}_1 = 0.06 \pm 0.19(stat) \pm 0.04(sys)$ and ${\cal{A}}_2 = -0.19 \pm 0.17(stat) \pm 0.05(sys)$.
Published: 2003
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317. Observation of a narrow charmoniumlike state in exclusive B+/---K+/-pi+pi-J/psi decays

Author: S-K, Choi, S L, Olsen, K, Abe, T, Abe, I, Adachi, Byoung Sup, Ahn, H, Aihara, K, Akai, M, Akatsu, M, Akemoto, Y, Asano, T, Aso, V, Aulchenko, T, Aushev, A M, Bakich, Y, Ban, S, Banerjee, A, Bondar, A, Bozek, M, Bracko, J, Brodzicka, T E, Browder, P, Chang, Y, Chao, K-F, Chen, B G, Cheon, R, Chistov, Y, Choi, Y K, Choi, M, Danilov, L Y, Dong, A, Drutskoy, S, Eidelman, V, Eiges, J, Flanagan, C, Fukunaga, K, Furukawa, N, Gabyshev, T, Gershon, B, Golob, H, Guler, R, Guo, C, Hagner, F, Handa, T, Hara, N C, Hastings, H, Hayashii, M, Hazumi, L, Hinz, Y, Hoshi, W-S, Hou, Y B, Hsiung, H-C, Huang, T, Iijima, K, Inami, A, Ishikawa, R, Itoh, M, Iwasaki, Y, Iwasaki, J H, Kang, S U, Kataoka, N, Katayama, H, Kawai, T, Kawasaki, H, Kichimi, E, Kikutani, H J, Kim, Hyunwoo, Kim, J H, Kim, S K, Kim, K, Kinoshita, H, Koiso, P, Koppenburg, S, Korpar, P, Krizan, P, Krokovny, S, Kumar, A, Kuzmin, J S, Lange, G, Leder, S H, Lee, T, Lesiak, S-W, Lin, D, Liventsev, J, MacNaughton, G, Majumder, F, Mandl, D, Marlow, T, Matsumoto, S, Michizono, T, Mimashi, W, Mitaroff, K, Miyabayashi, H, Miyake, D, Mohapatra, G R, Moloney, T, Nagamine, Y, Nagasaka, T, Nakadaira, T T, Nakamura, M, Nakao, Z, Natkaniec, S, Nishida, O, Nitoh, T, Nozaki, S, Ogawa, Y, Ogawa, K, Ohmi, Y, Ohnishi, T, Ohshima, N, Ohuchi, K, Oide, T, Okabe, S, Okuno, W, Ostrowicz, H, Ozaki, H, Palka, H, Park, N, Parslow, L E, Piilonen, H, Sagawa, S, Saitoh, Y, Sakai, T R, Sarangi, M, Satapathy, A, Satpathy, O, Schneider, A J, Schwartz, S, Semenov, K, Senyo, R, Seuster, M E, Sevior, H, Shibuya, T, Shidara, B, Shwartz, V, Sidorov, N, Soni, S, Stanic, M, Staric, A, Sugiyama, T, Sumiyoshi, S, Suzuki, F, Takasaki, K, Tamai, N, Tamura, M, Tanaka, M, Tawada, G N, Taylor, Y, Teramoto, T, Tomura, K, Trabelsi, T, Tsukamoto, S, Uehara, K, Ueno, Y, Unno, S, Uno, G, Varner, K E, Varvell, C C, Wang, C H, Wang, J G, Wang, Y, Watanabe, E, Won, B D, Yabsley, Y, Yamada, A, Yamaguchi, Y, Yamashita, H, Yanai, Heyoung, Yang, J, Ying, M, Yoshida, C C, Zhang, Z P, Zhang, and D, Zontar
Abstract: We report the observation of a narrow charmoniumlike state produced in the exclusive decay process B+/---K+/-pi(+)pi(-)J/psi. This state, which decays into pi(+)pi(-)J/psi, has a mass of 3872.0+/-0.6(stat)+/-0.5(syst) MeV, a value that is very near the M(D0)+M(D(*0)) mass threshold. The results are based on an analysis of 152M B-Bmacr; events collected at the Upsilon(4S) resonance in the Belle detector at the KEKB collider. The signal has a statistical significance that is in excess of 10sigma.
Published: 2003

318. Observation of radiative B--phi K gamma decays

Author: A, Drutskoy, K, Abe, T, Abe, H, Aihara, M, Akatsu, Y, Asano, V, Aulchenko, T, Aushev, A M, Bakich, Y, Ban, A, Bay, I, Bedny, P K, Behera, I, Bizjak, A, Bondar, A, Bozek, M, Bracko, T E, Browder, B C K, Casey, Y, Chao, B G, Cheon, R, Chistov, Y, Choi, A, Chuvikov, M, Danilov, M, Dash, L Y, Dong, S, Eidelman, V, Eiges, N, Gabyshev, A, Garmash, T, Gershon, B, Golob, J, Haba, C, Hagner, F, Handa, N C, Hastings, H, Hayashii, M, Hazumi, L, Hinz, T, Hokuue, Y, Hoshi, W-S, Hou, H-C, Huang, Y, Igarashi, T, Iijima, K, Inami, A, Ishikawa, R, Itoh, H, Iwasaki, M, Iwasaki, Y, Iwasaki, H K, Jang, J H, Kang, J S, Kang, P, Kapusta, N, Katayama, T, Kawasaki, H, Kichimi, D W, Kim, H J, Kim, Hyunwoo, Kim, J H, Kim, S K, Kim, K, Kinoshita, P, Koppenburg, S, Korpar, P, Krizan, P, Krokovny, Y-J, Kwon, S H, Lee, T, Lesiak, J, Li, J, MacNaughton, D, Marlow, T, Matsumoto, A, Matyja, W, Mitaroff, H, Miyata, D, Mohapatra, G R, Moloney, T, Mori, T, Nagamine, Y, Nagasaka, T, Nakadaira, E, Nakano, M, Nakao, J W, Nam, Z, Natkaniec, S, Nishida, O, Nitoh, S, Ogawa, T, Ohshima, S, Okuno, S L, Olsen, W, Ostrowicz, H, Ozaki, P, Pakhlov, H, Palka, C W, Park, H, Park, K S, Park, N, Parslow, M, Peters, L E, Piilonen, N, Root, H, Sagawa, S, Saitoh, Y, Sakai, T R, Sarangi, A, Satpathy, O, Schneider, J, Schümann, A J, Schwartz, S, Semenov, K, Senyo, M E, Sevior, H, Shibuya, B, Shwartz, V, Sidorov, J B, Singh, N, Soni, S, Stanic, M, Staric, A, Sugi, K, Sumisawa, T, Sumiyoshi, S, Suzuki, S Y, Suzuki, F, Takasaki, N, Tamura, M, Tanaka, Y, Teramoto, T, Tomura, K, Trabelsi, T, Tsuboyama, T, Tsukamoto, S, Uehara, S, Uno, G, Varner, K E, Varvell, C H, Wang, J G, Wang, M-Z, Wang, Y, Watanabe, E, Won, Y, Yamada, Y, Yamashita, M, Yamauchi, Y, Yuan, Y, Yusa, Z P, Zhang, V, Zhilich, and D, Zontar
Abstract: The radiative decay B--phi K gamma is observed for the first time. The branching fraction for the charged B---phi K- gamma decay mode is measured to be B(B---phi K- gamma)=(3.4+/-0.9+/-0.4)x10(-6). The photon energy distribution for the B---phi K- gamma decay is presented. The signal for the neutral B(0)--phi K(0)gamma decay mode is not statistically significant and an upper limit, B(B(0)--phi K(0)gamma)8.3x10(-6) at 90% C.L., is set. The analysis is based on a data set of 90 fb(-1) collected by the Belle experiment at the e(+)e(-) asymmetric collider KEKB.
Published: 2003

319. Generic peer-to-peer support for a personal service platform

Author: F. Espinoza and L. Hinz
Subjects: World Wide Web, Ubiquitous computing, Leverage (negotiation), Computer science, business.industry, The Internet, Peer-to-peer, Service provider, Personal service, business, computer.software_genre, computer, Variety (cybernetics)
Abstract: Building on previous work of the OASIS group at SICS, this paper presents a generic peer-to-peer system for the sView personal service platform. The sView platform provides each user with a personal service briefcase from which services may be reached using a variety of devices and interfaces. With the peer-to-peer system, called Briefcase Connectivity, we leverage the community of all sView users, the ultimate purpose of which is to simplify the propagation of cooperating services, to enable users to become individual service providers, and to bring to the users a greater number of specialized services. We suggest that sView with Briefcase Connectivity and today's electronic services demonstrate a viable model to make a step toward tomorrow's ubiquitous computing.
Published: 2003
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320. Observation of the D(sJ)(2317) and D(sJ)(2457) in B decays

Author: P, Krokovny, K, Abe, T, Abe, I, Adachi, H, Aihara, K, Akai, M, Akatsu, M, Akemoto, Y, Asano, T, Aso, T, Aushev, A M, Bakich, I, Bedny, P K, Behera, I, Bizjak, A, Bondar, M, Bracko, T E, Browder, B C K, Casey, Y, Chao, B G, Cheon, R, Chistov, S-K, Choi, Y, Choi, Y K, Choi, A, Chuvikov, L Y, Dong, J, Dragic, S, Eidelman, V, Eiges, Y, Enari, J, Flanagan, N, Gabyshev, A, Garmash, T, Gershon, B, Golob, R, Guo, C, Hagner, F, Handa, N C, Hastings, H, Hayashii, M, Hazumi, L, Hinz, T, Hokuue, Y, Hoshi, W-S, Hou, H-C, Huang, Y, Igarashi, H, Ikeda, A, Ishikawa, R, Itoh, H, Iwasaki, M, Iwasaki, H K, Jang, T, Kamitani, J H, Kang, N, Katayama, H, Kawai, T, Kawasaki, H, Kichimi, E, Kikutani, D W, Kim, H J, Kim, Hyunwoo, Kim, J H, Kim, K, Kinoshita, H, Koiso, P, Koppenburg, S, Korpar, P, Krizan, A, Kuzmin, Y-J, Kwon, J S, Lange, S H, Lee, T, Lesiak, A, Limosani, S-W, Lin, J, MacNaughton, G, Majumder, F, Mandl, M, Masuzawa, T, Matsumoto, S, Michizono, Y, Mikami, W, Mitaroff, H, Miyata, D, Mohapatra, G R, Moloney, T, Nagamine, Y, Nagasaka, T, Nakadaira, T T, Nakamura, E, Nakano, M, Nakao, H, Nakazawa, J W, Nam, Z, Natkaniec, S, Nishida, O, Nitoh, T, Nozaki, S, Ogawa, Y, Ogawa, Y, Ohnishi, T, Ohshima, N, Ohuchi, K, Oide, T, Okabe, S, Okuno, S L, Olsen, W, Ostrowicz, H, Ozaki, H, Palka, C W, Park, H, Park, K S, Park, N, Parslow, L E, Piilonen, N, Root, M, Rozanska, H, Sagawa, S, Saitoh, Y, Sakai, T R, Sarangi, A, Satpathy, O, Schneider, C, Schwanda, A J, Schwartz, S, Semenov, M E, Sevior, H, Shibuya, T, Shidara, V, Sidorov, J B, Singh, N, Soni, S, Stanic, A, Sugi, K, Sumisawa, T, Sumiyoshi, S, Suzuki, F, Takasaki, K, Tamai, N, Tamura, J, Tanaka, M, Tanaka, M, Tawada, Y, Teramoto, T, Tomura, K, Trabelsi, T, Tsuboyama, T, Tsukamoto, S, Uehara, K E, Varvell, C H, Wang, Y, Watanabe, E, Won, B D, Yabsley, Y, Yamada, A, Yamaguchi, N, Yamamoto, Y, Yamashita, M, Yamauchi, H, Yanai, Y, Yuan, C C, Zhang, Z P, Zhang, V, Zhilich, and D, Zontar
Abstract: We report the first observation of the B--Dmacr;D(sJ)(2317) and B--Dmacr;D(sJ)(2457) decays based on 123.8x10(6) BBmacr; events collected with the Belle detector at KEKB. We observe the D(sJ)(2317) decay to D(s)pi(0) and the D(sJ)(2457) decay to the D(*)(s)pi(0) and D(s)gamma final states. We also set 90% C.L. upper limits for the decays D(sJ)(2317)--D(*)(s)gamma, D(sJ)(2457)--D(*)(s)gamma, D(sJ)(2457)--D(s)pi(0), and D(sJ)(2457)--D(s)pi(+)pi(-).
Published: 2003

321. Improved measurement of the partial-rateCPasymmetry inB+→K0π+andB−→K0π−decays

Author: Y. Unno, K. Suzuki, K. Abe, T. Abe, I. Adachi, H. Aihara, M. Akatsu, Y. Asano, T. Aso, V. Aulchenko, T. Aushev, S. Bahinipati, A. M. Bakich, Y. Ban, S. Banerjee, A. Bay, I. Bedny, P. K. Behera, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, B. C. K. Casey, P. Chang, Y. Chao, K.-F. Chen, B. G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, Y. K. Choi, M. Danilov, L. Y. Dong, J. Dragic, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, F. Fang, N. Gabyshev, A. Garmash, T. Gershon, B. Golob, R. Guo, J. Haba, F. Handa, H. Hayashii, M. Hazumi, L. Hinz, T. Hokuue, Y. Hoshi, W.-S. Hou, H.-C. Huang, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, H. Iwasaki, Y. Iwasaki, H. K. Jang, J. H. Kang, J. S. Kang, P. Kapusta, S. U. Kataoka, N. Katayama, H. Kawai, N. Kawamura, T. Kawasaki, H. Kichimi, D. W. Kim, H. J. Kim, Hyunwoo Kim, J. H. Kim, S. K. Kim, K. Kinoshita, S. Kobayashi, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, S. Kumar, A. Kuzmin, Y.-J. Kwon, J. S. Lange, G. Leder, S. H. Lee, J. Li, A. Limosani, S.-W. Lin, D. Liventsev, J. MacNaughton, F. Mandl, D. Marlow, H. Matsumoto, T. Matsumoto, A. Matyja, W. Mitaroff, H. Miyake, H. Miyata, T. Mori, A. Murakami, T. Nagamine, Y. Nagasaka, T. Nakadaira, E. Nakano, M. Nakao, H. Nakazawa, J. W. Nam, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, P. Pakhlov, H. Palka, C. W. Park, H. Park, K. S. Park, L. S. Peak, J.-P. Perroud, L. E. Piilonen, N. Root, H. Sagawa, S. Saitoh, Y. Sakai, M. Satapathy, A. Satpathy, O. Schneider, A. J. Schwartz, T. Seki, S. Semenov, K. Senyo, M. E. Sevior, T. Shibata, J. B. Singh, N. Soni, S. Stanič, M. Starič, A. Sugi, K. Sumisawa, T. Sumiyoshi, S. Suzuki, S. K. Swain, T. Takahashi, F. Takasaki, J. Tanaka, M. Tanaka, G. N. Taylor, Y. Teramoto, T. Tomura, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, S. Uno, G. Varner, K. E. Varvell, C. H. Wang, J. G. Wang, M.-Z. Wang, M. Watanabe, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, H. Yamamoto, Y. Yamashita, M. Yamauchi, H. Yanai, Heyoung Yang, C. C. Zhang, J. Zhang, Z. P. Zhang, Y. Zheng, D. Žontar, and D. Zürcher
Subjects: Physics, Nuclear and High Energy Physics, Nuclear magnetic resonance, KEKB, media_common.quotation_subject, Resonance, Asymmetry, Storage ring, media_common
Abstract: We report an improved measurement of the partial-rate CP asymmetry in B±→K0π± decays. The analysis is based on a data sample of 85×106 BB pairs collected at the Y(4S) resonance with the Belle detector at the KEKB e +e- storage ring. We measure ACP(K 0π±) = 0.07-0.08 +0.09 +0.03 +0.01, where the first and second errors are statistical and systematic, respectively; the corresponding 90% confidence-level interval is -0.10
Published: 2003
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322. Measurements of the $D_{sJ}$ resonance properties

Author: G. R. Moloney, Mika Masuzawa, S. Uehara, Patrick Koppenburg, G. Leder, Y. Iwasaki, Y. J. Kwon, Gobinda Majumder, Hiroyuki Iwasaki, H. Palka, L. E. Piilonen, N. Katayama, T. Aushev, Masashi Hazumi, Norihito Ohuchi, Z. Natkaniec, R. Kulasiri, F. Mandl, M. H. Tanaka, T. Tsukamoto, M. E. Sevior, Hiroyuki Sagawa, W. Ostrowicz, S. Bahinipati, T. Matsumoto, T. Iijima, H. Miyata, Y. Hoshi, Y. Sakai, B. Golob, O. Schneider, R. Chistov, J. Ying, V.A. Sidorov, M. Yamauchi, D. Žontar, K. Trabelsi, P. Krokovny, Kazuro Furukawa, T. Sumiyoshi, H. J. Kim, A. Garmash, H. Park, Y. Yamashita, Y. Mikami, K. Ohmi, J. MacNaughton, W. S. Hou, Eiji Kikutani, H. Kawai, Heyoung Yang, Byung Gu Cheon, O. Nitoh, K. Senyo, Jung-Hyun Kim, K. S. Park, T. Nagamine, Yasushi Nagasaka, T. Hokuue, H. C. Huang, N. Kawamura, T. Kawasaki, S. Stanič, M. Iwasaki, N. Parslow, B. Shwartz, Chikara Fukunaga, A. Matyja, S. L. Olsen, Hiroaki Aihara, K. Inami, Ryuhei Sugahara, J. Dragic, Y. Chao, D. Liventsev, Yasuhiko Yamada, H. Shibuya, Tetsuo Shidara, Zhenyu Zhang, Toshihiro Mimashi, A. Bondar, Y. Watanabe, V. Eiges, A. Sugi, H. Kichimi, I. Bizjak, G. S. Varner, H. Yanai, M. Bračko, L. Y. Dong, Hirokazu Ikeda, S. K. Choi, C. W. Park, Tsukasa Aso, T. Abe, T. Tsuboyama, T. Lesiak, S. Uno, C. Schwanda, K. Kinoshita, S. Saitoh, S. Ogawa, T. J. Gershon, Kazuo Abe, B. D. Yabsley, T. Hara, Hitoshi Yamamoto, Y. Asano, P. Kapusta, Katsunobu Oide, M. Akemoto, S. Okuno, A. M. Bakich, T. Ohshima, E. Nakano, A. Chuvikov, M. Yoshida, S. Y. Suzuki, N. Gabyshev, I. Higuchi, A. Yamaguchi, K. Sumisawa, Jasvinder A. Singh, S. W. Lin, L. Hinz, M. Nakao, Y. Teramoto, Masafumi Tawada, T. Okabe, H. Hayashii, H. Ozaki, V.N. Zhilich, S. H. Lee, T. Tomura, J. H. Kang, S. Semenov, W. A. Mitaroff, Young-Il Choi, N. Soni, A. Ishikawa, A. Bay, Y. Ban, T. Nozaki, F. Takasaki, P. Križan, M. Starič, J. S. Kang, H. Nakazawa, G. Gokhroo, Y. Ogawa, Y. Yusa, S. Eidelman, A. J. Schwartz, F. Handa, S. Nishida, Y. Choi, A.S. Kuzmin, T. E. Browder, Takashi Nakamura, M. Danilov, P. Pakhlov, and A. Bozek
Subjects: Physics, Crystallography, High Energy Physics - Experiment (hep-ex), Radiative decay, General Physics and Astronomy, Resonance, FOS: Physical sciences, High Energy Physics::Experiment, Continuum (set theory), Nuclear Experiment, High Energy Physics - Experiment
Abstract: We report measurements of the properties of the $D_{sJ}^+(2317)$ and $D_{sJ}^+(2457)$ resonances produced in continuum $e^+ e^-$ annihilation near $\sqrt{s}=10.6 \mathrm{GeV}$. The analysis is based on an $86.9 \mathrm{fb^{-1}}$ data sample collected %at and 60 MeV below the $\Upsilon(4S)$ resonance with with the Belle detector at KEKB. We determine the masses to be $M(D_{sJ}^+(2317)) = 2317.2 \pm 0.5(\mathrm{stat}) \pm 0.9(\mathrm{syst}) \mathrm{MeV}/c^2$ and $M(D_{sJ}^+(2457))=2456.5 \pm 1.3(\mathrm{stat}) \pm 1.3(\mathrm{syst}) \mathrm{MeV}/c^2$. We observe the radiative decay mode $D_{sJ}^+(2457) \to D_s^+ \gamma$ and the dipion decay mode $D_{sJ}^+(2457) \to D_s^+ \pi^+ \pi^-$, and determine their branching fractions. No corresponding decays are observed for the $D_{sJ}(2317)$ state. These results are consistent with the spin-parity assignments of $0^+$ for the $D_{sJ}(2317)$ and $1^+$ for the $D_{sJ}(2457)$., Comment: 5 pages, 6 figures; Added content, updated and paper submitted to PRL
Published: 2003

323. Evidence forCP-violating asymmetries inB0→π+π−decays and constraints on the CKM angleφ2

Author: K. Abe, N. Abe, T. Abe, I. Adachi, H. Aihara, K. Akai, M. Akatsu, M. Akemoto, Y. Asano, T. Aushev, A. M. Bakich, Y. Ban, E. Banas, A. Bay, I. Bedny, P. K. Behera, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, B. C. K. Casey, P. Chang, K.-F. Chen, B. G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, Y. K. Choi, M. Danilov, J. Dragic, A. Drutskoy, S. Eidelman, V. Eiges, C. W. Everton, J. Flanagan, C. Fukunaga, K. Furukawa, N. Gabyshev, A. Garmash, T. Gershon, B. Golob, R. Guo, C. Hagner, K. Hara, N. C. Hastings, K. Hasuko, H. Hayashii, M. Hazumi, T. Higuchi, L. Hinz, T. Hojo, T. Hokuue, Y. Hoshi, W.-S. Hou, Y. B. Hsiung, H.-C. Huang, T. Igaki, Y. Igarashi, T. Iijima, H. Ikeda, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, H. Iwasaki, Y. Iwasaki, H. K. Jang, J. S. Kang, P. Kapusta, S. U. Kataoka, N. Katayama, G. Katano, H. Kawai, N. Kawamura, T. Kawasaki, H. Kichimi, M. Kikuchi, E. Kikutani, D. W. Kim, H. J. Kim, H. O. Kim, Hyunwoo Kim, J. H. Kim, S. K. Kim, S. Kobayashi, S. Korpar, P. Križan, P. Krokovny, T. Kubo, R. Kulasiri, S. Kumar, A. Kuzmin, Y.-J. Kwon, J. S. Lange, G. Leder, S. H. Lee, J. Li, S.-W. Lin, J. MacNaughton, F. Mandl, D. Marlow, S. Matsumoto, T. Matsumoto, S. Michizono, T. Mimashi, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, G. R. Moloney, T. Mori, A. Murakami, Y. Nagasaka, T. Nakadaira, T. T. Nakamura, E. Nakano, M. Nakao, H. Nakayama, J. W. Nam, K. Neichi, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, Y. Ogawa, K. Ohmi, Y. Ohnishi, T. Ohshima, N. Ohuchi, T. Okabe, S. Okuno, S. L. Olsen, Y. Onuki, W. Ostrowicz, H. Ozaki, H. Palka, C. W. Park, H. Park, K. S. Park, L. S. Peak, J.-P. Perroud, M. Peters, L. E. Piilonen, M. Rozanska, K. Rybicki, H. Sagawa, S. Saitoh, Y. Sakai, T. R. Sarangi, M. Satapathy, A. Satpathy, O. Schneider, S. Schrenk, J. Schümann, C. Schwanda, S. Semenov, K. Senyo, M. E. Sevior, H. Shibuya, T. Shidara, B. Shwartz, V. Sidorov, J. B. Singh, S. Stanič, M. Starič, R. Sugahara, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, K. Suzuki, S. Suzuki, T. Takahashi, F. Takasaki, K. Tamai, N. Tamura, J. Tanaka, M. Tanaka, M. Tawada, G. N. Taylor, Y. Teramoto, S. Tokuda, T. Tomura, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, Y. Unno, S. Uno, N. Uozaki, S. E. Vahsen, G. Varner, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, M.-Z. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, H. Yamamoto, Y. Yamashita, M. Yamauchi, M. Yokoyama, M. Yoshida, C. C. Zhang, Z. P. Zhang, V. Zhilich, and D. Žontar
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Electron–positron annihilation, media_common.quotation_subject, High Energy Physics::Phenomenology, Monte Carlo method, Resonance (particle physics), Asymmetry, law.invention, Nuclear physics, KEKB, law, CP violation, High Energy Physics::Experiment, B meson, Collider, media_common
Abstract: We present an improved measurement of CP-violating asymmetries in B 0→π+π- decays based on a 78 fb -1 data sample collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+ e- collider. We reconstruct one neutral B meson as a B0→π+π - CP eigenstate and identify the flavor of the accompanying B meson from inclusive properties of its decay products. We apply an unbinned maximum likelihood fit to the distribution of the time intervals between the two B meson decay points. The fit yields the CP-violating asymmetry amplitudes A ππ= +0.77 ±0.27(stat) ±0.08(syst) and S ππ=-1.23 ±0.41(stat) -0.07 +0.08(syst), where the statistical uncertainties are determined from the Monte Carlo pseudoexperiments. We obtain confidence intervals for CP-violating asymmetry parameters Aππ and Sππ based on a frequentist approach. We rule out the CP-conserving case, A ππ=Sππ=0, at the 99.93% confidence level. We discuss how these results constrain the value of the Cabibbo-Kobayashi-Maskawa (CKM) angle φ2. © 2003 The American Physical Society.
Published: 2003
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324. Observation of B-/+--rho-/+rho0 decays

Author: J, Zhang, M, Nakao, K, Abe, T, Abe, I, Adachi, H, Aihara, M, Akatsu, Y, Asano, T, Aso, V, Aulchenko, T, Aushev, S, Bahinipati, A M, Bakich, Y, Ban, E, Banas, P K, Behera, I, Bizjak, A, Bondar, A, Bozek, M, Bracko, T E, Browder, B C K, Casey, P, Chang, Y, Chao, B G, Cheon, R, Chistov, S-K, Choi, Y, Choi, Y K, Choi, M, Danilov, L Y, Dong, J, Dragic, A, Drutskoy, S, Eidelman, V, Eiges, Y, Enari, C, Fukunaga, N, Gabyshev, A, Garmash, T, Gershon, A, Gordon, R, Guo, F, Handa, T, Hara, N C, Hastings, H, Hayashii, M, Hazumi, L, Hinz, T, Hokuue, Y, Hoshi, W-S, Hou, Y B, Hsiung, H-C, Huang, Y, Igarashi, T, Iijima, K, Inami, A, Ishikawa, R, Itoh, H, Iwasaki, M, Iwasaki, Y, Iwasaki, H K, Jang, J H, Kang, J S, Kang, S U, Kataoka, N, Katayama, H, Kawai, N, Kawamura, T, Kawasaki, D W, Kim, H J, Kim, Hyunwoo, Kim, J H, Kim, S K, Kim, K, Kinoshita, P, Koppenburg, S, Korpar, P, Krizan, P, Krokovny, R, Kulasiri, S, Kumar, A, Kuzmin, Y-J, Kwon, G, Leder, S H, Lee, T, Lesiak, J, Li, A, Limosani, S-W, Lin, D, Liventsev, J, MacNaughton, G, Majumder, F, Mandl, D, Marlow, H, Matsumoto, T, Matsumoto, A, Matyja, W, Mitaroff, K, Miyabayashi, H, Miyata, D, Mohapatra, T, Mori, T, Nagamine, Y, Nagasaka, T, Nakadaira, E, Nakano, J W, Nam, Z, Natkaniec, S, Nishida, O, Nitoh, T, Nozaki, S, Ogawa, T, Ohshima, T, Okabe, S, Okuno, S L, Olsen, W, Ostrowicz, H, Ozaki, H, Park, K S, Park, N, Parslow, J-P, Perroud, L E, Piilonen, M, Rozanska, H, Sagawa, S, Saitoh, Y, Sakai, T R, Sarangi, A, Satpathy, O, Schneider, J, Schümann, C, Schwanda, A J, Schwartz, S, Semenov, K, Senyo, R, Seuster, M E, Sevior, T, Shibata, H, Shibuya, V, Sidorov, J B, Singh, S, Stanic, M, Staric, A, Sugi, K, Sumisawa, T, Sumiyoshi, S, Suzuki, S Y, Suzuki, S K, Swain, T, Takahashi, F, Takasaki, K, Tamai, N, Tamura, M, Tanaka, G N, Taylor, Y, Teramoto, T, Tomura, S N, Tovey, K, Trabelsi, T, Tsuboyama, T, Tsukamoto, S, Uehara, S, Uno, G, Varner, K E, Varvell, C C, Wang, C H, Wang, J G, Wang, M-Z, Wang, Y, Watanabe, E, Won, B D, Yabsley, Y, Yamada, A, Yamaguchi, Y, Yamashita, M, Yamauchi, H, Yanai, Heyoung, Yang, Y, Yusa, Z P, Zhang, Y, Zheng, V, Zhilich, D, Zontar, and D, Zürcher
Abstract: We report the first observation of the charmless vector-vector decay process B-/+--rho(-/+)rho(0). The measurement uses a 78 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric e(+)e(-) collider operating at the Upsilon(4S) resonance. We obtain a branching fraction of B(B-/+--rho(-/+)rho(0))=[31.7+/-7.1(stat)+3.8-6.7(syst)]x10(-6). An analysis of the rho helicity-angle distributions gives a longitudinal polarization fraction of Gamma(L)/Gamma=0.95+/-0.11(stat)+/-0.02(syst). We also measure the direct-CP-violating asymmetry A(CP)(B-/+--rho(-/+)rho(0))=0.00+/-0.22(stat)+/-0.03(syst).
Published: 2003

325. Evidence for B--phiphiK

Author: H-C, Huang, K, Abe, T, Abe, I, Adachi, H, Aihara, M, Akatsu, T, Aso, V, Aulchenko, T, Aushev, A M, Bakich, Y, Ban, E, Banas, A, Bay, I, Bedny, P K, Behera, I, Bizjak, A, Bondar, A, Bozek, M, Bracko, T E, Browder, B C K, Casey, P, Chang, Y, Chao, K-F, Chen, B G, Cheon, R, Chistov, Y, Choi, Y K, Choi, M, Danilov, L Y, Dong, A, Drutskoy, S, Eidelman, V, Eiges, Y, Enari, C, Fukunaga, N, Gabyshev, A, Garmash, T, Gershon, B, Golob, R, Guo, J, Haba, F, Handa, T, Hara, N C, Hastings, H, Hayashii, M, Hazumi, L, Hinz, T, Hokuue, Y, Hoshi, W-S, Hou, Y B, Hsiung, Y, Igarashi, T, Iijima, K, Inami, A, Ishikawa, R, Itoh, Y, Iwasaki, H K, Jang, J H, Kang, J S, Kang, P, Kapusta, N, Katayama, H, Kawai, N, Kawamura, T, Kawasaki, H, Kichimi, D W, Kim, H J, Kim, Hyunwoo, Kim, J H, Kim, K, Kinoshita, P, Koppenburg, S, Korpar, P, Krizan, P, Krokovny, R, Kulasiri, S, Kumar, Y-J, Kwon, G, Leder, S H, Lee, T, Lesiak, J, Li, A, Limosani, S-W, Lin, D, Liventsev, J, MacNaughton, G, Majumder, F, Mandl, D, Marlow, H, Matsumoto, T, Matsumoto, W, Mitaroff, H, Miyata, G R, Moloney, T, Mori, T, Nagamine, Y, Nagasaka, T, Nakadaira, E, Nakano, M, Nakao, H, Nakazawa, J W, Nam, Z, Natkaniec, S, Nishida, O, Nitoh, T, Nozaki, S, Ogawa, T, Ohshima, T, Okabe, S, Okuno, S L, Olsen, W, Ostrowicz, H, Ozaki, H, Palka, C W, Park, H, Park, K S, Park, N, Parslow, J-P, Perroud, M, Peters, L E, Piilonen, M, Rozanska, H, Sagawa, S, Saitoh, Y, Sakai, T R, Sarangi, A, Satpathy, O, Schneider, J, Schümann, C, Schwanda, A J, Schwartz, T, Seki, S, Semenov, M E, Sevior, T, Shibata, H, Shibuya, V, Sidorov, J B, Singh, S, Stanic, M, Staric, A, Sugi, K, Sumisawa, T, Sumiyoshi, S, Suzuki, S Y, Suzuki, T, Takahashi, F, Takasaki, K, Tamai, N, Tamura, J, Tanaka, M, Tanaka, G N, Taylor, Y, Teramoto, T, Tomura, S N, Tovey, K, Trabelsi, T, Tsuboyama, T, Tsukamoto, S, Uehara, S, Uno, G, Varner, K E, Varvell, C C, Wang, C H, Wang, J G, Wang, M-Z, Wang, Y, Watanabe, E, Won, B D, Yabsley, Y, Yamada, A, Yamaguchi, Y, Yamashita, M, Yamauchi, H, Yanai, Heyoung, Yang, Y, Yusa, C C, Zhang, Z P, Zhang, Y, Zheng, V, Zhilich, and D, Zontar
Abstract: We report evidence for the decay mode B--phiphiK based on an analysis of 78 fb(-1) of data collected with the Belle detector at KEKB. This is the first example of a b--sssss transition. The branching fraction for this decay is measured to be B(B+/---phiphiK+/-)=(2.6(+1.1)(-0.9)+/-0.3)x10(-6) for a phiphi invariant mass below 2.85 GeV/c(2). Results for other related charmonium decay modes are also reported.
Published: 2003

326. Measurement of theB0−B0mixing rate withB0(B0)→D*∓π±partial reconstruction

Author: Y. Zheng, T. E. Browder, K. Abe, R. Abe, I. Adachi, H. Aihara, M. Akatsu, Y. Asano, T. Aso, T. Aushev, A. M. Bakich, Y. Ban, A. Bay, P. K. Behera, A. Bondar, A. Bozek, M. Bračko, B. C. K. Casey, Y. Chao, K.-F. Chen, B. G. Cheon, R. Chistov, Y. Choi, Y. K. Choi, M. Danilov, S. Eidelman, V. Eiges, Y. Enari, C. Fukunaga, N. Gabyshev, A. Garmash, T. Gershon, B. Golob, C. Hagner, F. Handa, T. Hara, N. C. Hastings, K. Hasuko, M. Hazumi, E. M. Heenan, I. Higuchi, L. Hinz, T. Hokuue, Y. Hoshi, W.-S. Hou, H.-C. Huang, Y. Igarashi, T. Iijima, K. Inami, H. Ishino, H. Iwasaki, M. Iwasaki, H. K. Jang, J. H. Kang, J. S. Kang, S. U. Kataoka, N. Katayama, H. Kawai, Y. Kawakami, N. Kawamura, T. Kawasaki, H. Kichimi, D. W. Kim, H. J. Kim, H. O. Kim, Hyunwoo Kim, J. H. Kim, S. K. Kim, K. Kinoshita, S. Kobayashi, S. Korpar, P. Krokovny, A. Kuzmin, Y.-J. Kwon, G. Leder, S. H. Lee, J. Li, D. Liventsev, R.-S. Lu, J. MacNaughton, G. Majumder, S. Matsumoto, T. Matsumoto, W. Mitaroff, Y. Miyabayashi, H. Miyake, H. Miyata, T. Nagamine, Y. Nagasaka, T. Nakadaira, E. Nakano, M. Nakao, H. Nakazawa, J. W. Nam, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, Y. Onuki, W. Ostrowicz, H. Ozaki, C. W. Park, H. Park, K. S. Park, J.-P. Perroud, L. E. Piilonen, F. J. Ronga, K. Rybicki, H. Sagawa, Y. Sakai, T. R. Sarangi, M. Satapathy, A. Satpathy, O. Schneider, S. Schrenk, C. Schwanda, S. Semenov, R. Seuster, M. E. Sevior, H. Shibuya, V. Sidorov, J. B. Singh, N. Soni, S. Stanič, M. Starič, A. Sugi, K. Sumisawa, T. Sumiyoshi, S. Suzuki, S. Y. Suzuki, T. Takahashi, F. Takasaki, K. Tamai, N. Tamura, J. Tanaka, M. Tanaka, G. N. Taylor, Y. Teramoto, S. Tokuda, T. Tomura, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, S. Uno, G. Varner, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, Y. Yamashita, M. Yamauchi, H. Yanai, M. Yokoyama, Y. Yuan, C. C. Zhang, Z. P. Zhang, V. Zhilich, and D. Žontar
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, Electron–positron annihilation, High Energy Physics::Phenomenology, Resonance, Charge (physics), law.invention, KEKB, law, High Energy Physics::Experiment, Collider, Lepton, Bar (unit)
Abstract: We report a measurement of the $B^0-\bar{B}^0$ mixing parameter $\Delta m_d$ based on a $\rm 29.1~fb^{-1}$ sample of $\Upsilon (4S)$ resonance decays collected by the Belle detector at the KEKB asymmetric $e^+ e^-$ collider. We use events with a partially reconstructed $B^0(\bar{B}^0) \to D^{*\mp} \pi^{\pm}$ candidate and where the flavor of the accompanying $B$ meson is identified by the charge of the lepton from a $B^0(\bar{B}^0) \to X^{\mp} \ell^{\pm} \nu$ decay. The proper-time difference between the two $B$ mesons is determined from the distance between the two decay vertices. From a simultaneous fit to the proper-time distributions for the same-flavor ($B^0(\bar{B}^0)$, $\ell^{\pm}$) and opposite-flavor ($B^0(\bar{B}^0)$, $\ell^{\mp}$) event samples, we measure the mass difference between the two mass eigenstates of the neutral $B$ meson to be $\Delta m_d$= $(0.509 \pm 0.017~(\rm stat) \pm 0.020~(\rm syst))~ps^{-1}$.
Published: 2003
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327. Studies of the DecayB±→DCPK±

Author: K. Abe, N. Abe, R. Abe, T. Abe, Byoung Sup Ahn, H. Aihara, M. Akatsu, Y. Asano, T. Aso, V. Aulchenko, T. Aushev, A. M. Bakich, Y. Ban, P. K. Behera, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, T. E. Browder, B. C. K. Casey, M.-C. Chang, P. Chang, Y. Chao, B. G. Cheon, R. Chistov, Y. Choi, Y. K. Choi, M. Danilov, L. Y. Dong, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, F. Fang, H. Fujii, C. Fukunaga, N. Gabyshev, A. Garmash, T. Gershon, B. Golob, A. Gordon, R. Guo, J. Haba, T. Hara, Y. Harada, H. Hayashii, M. Hazumi, E. M. Heenan, I. Higuchi, T. Higuchi, L. Hinz, T. Hokuue, Y. Hoshi, S. R. Hou, W.-S. Hou, S.-C. Hsu, H.-C. Huang, T. Igaki, Y. Igarashi, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, H. Iwasaki, Y. Iwasaki, H. K. Jang, J. H. Kang, J. S. Kang, N. Katayama, Y. Kawakami, N. Kawamura, T. Kawasaki, H. Kichimi, D. W. Kim, Heejong Kim, H. J. Kim, H. O. Kim, Hyunwoo Kim, S. K. Kim, T. H. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, S. Kumar, A. Kuzmin, Y.-J. Kwon, J. S. Lange, G. Leder, S. H. Lee, J. Li, A. Limosani, D. Liventsev, R.-S. Lu, J. MacNaughton, G. Majumder, F. Mandl, D. Marlow, T. Matsuishi, S. Matsumoto, T. Matsumoto, W. Mitaroff, K. Miyabayashi, Y. Miyabayashi, H. Miyake, H. Miyata, G. R. Moloney, T. Mori, A. Murakami, T. Nagamine, Y. Nagasaka, T. Nakadaira, E. Nakano, M. Nakao, J. W. Nam, Z. Natkaniec, K. Neichi, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, Y. Onuki, W. Ostrowicz, H. Ozaki, P. Pakhlov, H. Palka, C. W. Park, H. Park, L. S. Peak, J.-P. Perroud, M. Peters, L. E. Piilonen, J. L. Rodriguez, F. J. Ronga, N. Root, M. Rozanska, K. Rybicki, H. Sagawa, S. Saitoh, Y. Sakai, M. Satapathy, A. Satpathy, O. Schneider, S. Schrenk, C. Schwanda, S. Semenov, K. Senyo, R. Seuster, M. E. Sevior, H. Shibuya, B. Shwartz, V. Sidorov, J. B. Singh, S. Stanič, M. Starič, A. Sugi, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, K. Suzuki, S. Suzuki, S. Y. Suzuki, S. K. Swain, T. Takahashi, F. Takasaki, K. Tamai, N. Tamura, J. Tanaka, M. Tanaka, G. N. Taylor, Y. Teramoto, S. Tokuda, S. N. Tovey, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, Y. Unno, S. Uno, Y. Ushiroda, G. Varner, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, M.-Z. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, Y. Yamashita, M. Yamauchi, H. Yanai, P. Yeh, Y. Yuan, Y. Yusa, J. Zhang, Z. P. Zhang, Y. Zheng, V. Zhilich, and D. Žontar
Subjects: Physics, Particle decay, Particle physics, KEKB, Branching fraction, Electron–positron annihilation, Hadron, Analytical chemistry, Pi, General Physics and Astronomy, CP violation, B meson
Abstract: We report studies of the Cabibbo-suppressed decay B+/- --> DCPK+/-, where D-CP denotes CP eigenstates of the D-0 - (D) over bar (0) system. The analysis is based on a 29.1 fb(-1) sample collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric e(+)e(-) storage ring. We measure ratios of branching fractions, relative to Cabibbo-favored B+/--->D(CP)pi+/-, of B>(B- --> D1K-)/B(B- --> D(1)pi(-)) = 0.125 +/-0.036 +/- 0.010 and B(B- --> D2K-)/B(B- --> D(2)pi(-)) = 0.119 +/- 0.028 +/- 0.006; the index 1 (2) denotes the CP = +1 (-1) eigenstate. We also extract the partial rate asymmetries for B+/- --> DCPK+/-, finding A(1) = 0.29 +/- 0.26 +/- 0.05 and A(2) = -0.22 +/- 0.24 +/- 0.04.
Published: 2003
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328. Observation of the DecayB¯0→Λc+p¯

Author: N. Gabyshev, H. Kichimi, K. Abe, R. Abe, T. Abe, I. Adachi, H. Aihara, M. Akatsu, Y. Asano, T. Aso, V. Aulchenko, T. Aushev, A. M. Bakich, Y. Ban, E. Banas, A. Bay, I. Bedny, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, B. C. K. Casey, M.-C. Chang, P. Chang, Y. Chao, K.-F. Chen, B. G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, Y. K. Choi, M. Danilov, L. Y. Dong, J. Dragic, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, F. Fang, C. Fukunaga, A. Garmash, T. Gershon, B. Golob, J. Haba, C. Hagner, F. Handa, T. Hara, K. Hasuko, H. Hayashii, M. Hazumi, I. Higuchi, L. Hinz, T. Hojo, T. Hokuue, Y. Hoshi, W.-S. Hou, Y. B. Hsiung, H.-C. Huang, T. Igaki, Y. Igarashi, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, H. Iwasaki, Y. Iwasaki, H. K. Jang, J. H. Kang, J. S. Kang, P. Kapusta, S. U. Kataoka, N. Katayama, H. Kawai, T. Kawasaki, D. W. Kim, H. J. Kim, H. O. Kim, Hyunwoo Kim, J. H. Kim, S. K. Kim, K. Kinoshita, S. Kobayashi, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, A. Kuzmin, Y.-J. Kwon, J. S. Lange, G. Leder, S. H. Lee, J. Li, S.-W. Lin, D. Liventsev, R.-S. Lu, J. MacNaughton, G. Majumder, F. Mandl, T. Matsuishi, S. Matsumoto, T. Matsumoto, W. Mitaroff, Y. Miyabayashi, H. Miyake, H. Miyata, G. R. Moloney, T. Mori, T. Nagamine, Y. Nagasaka, T. Nakadaira, E. Nakano, M. Nakao, J. W. Nam, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, Y. Onuki, W. Ostrowicz, H. Ozaki, P. Pakhlov, H. Palka, C. W. Park, H. Park, K. S. Park, L. S. Peak, J.-P. Perroud, L. E. Piilonen, M. Rozanska, K. Rybicki, H. Sagawa, S. Saitoh, Y. Sakai, T. R. Sarangi, M. Satapathy, A. Satpathy, O. Schneider, S. Schrenk, J. Schümann, A. J. Schwartz, S. Semenov, K. Senyo, R. Seuster, M. E. Sevior, H. Shibuya, B. Shwartz, V. Sidorov, J. B. Singh, N. Soni, S. Stanič, M. Starič, A. Sugi, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, S. Suzuki, S. Y. Suzuki, S. K. Swain, T. Takahashi, F. Takasaki, K. Tamai, N. Tamura, J. Tanaka, M. Tanaka, G. N. Taylor, Y. Teramoto, S. Tokuda, T. Tomura, T. Tsuboyama, T. Tsukamoto, S. Uehara, Y. Unno, S. Uno, G. Varner, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, M.-Z. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, Y. Yamashita, M. Yamauchi, H. Yanai, Y. Yuan, Y. Yusa, C. C. Zhang, Z. P. Zhang, Y. Zheng, V. Zhilich, and D. Žontar
Subjects: Baryon, Physics, Particle physics, KEKB, Branching fraction, General Physics and Astronomy, Resonance, Lambda
Abstract: We report the measurement of the charmed baryonic decay ${\overline{B}}^{0}\ensuremath{\rightarrow}{\ensuremath{\Lambda}}_{c}^{+}\overline{p}$ with a branching fraction of $({2.19}_{\ensuremath{-}0.49}^{+0.56}\ifmmode\pm\else\textpm\fi{}0.32\ifmmode\pm\else\textpm\fi{}0.57)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}5}$ and a statistical significance of $5.8\text{ }\ensuremath{\sigma}$. The errors are statistical, systematic, and the error of the ${\ensuremath{\Lambda}}_{c}^{+}\ensuremath{\rightarrow}p{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$ decay branching fraction. This is the first observation of a two-body baryonic $B$ decay. The analysis is based on $78.2\text{ }{\mathrm{f}\mathrm{b}}^{\ensuremath{-}1}$ of data accumulated at the $\ensuremath{\Upsilon}(4S)$ resonance with the Belle detector at the KEKB asymmetric ${e}^{+}{e}^{\ensuremath{-}}$ collider.
Published: 2003
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329. Studies ofB0−B0mixing properties with inclusive dilepton events

Author: N. C. Hastings, K. Abe, R. Abe, T. Abe, I. Adachi, H. Aihara, M. Akatsu, Y. Asano, T. Aso, V. Aulchenko, T. Aushev, A. M. Bakich, Y. Ban, E. Banas, A. Bay, I. Bedny, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, B. C. K. Casey, M.-C. Chang, P. Chang, Y. Chao, K.-F. Chen, B. G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, Y. K. Choi, M. Danilov, L. Y. Dong, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, C. W. Everton, F. Fang, C. Fukunaga, N. Gabyshev, A. Garmash, T. Gershon, B. Golob, J. Haba, C. Hagner, F. Handa, T. Hara, K. Hasuko, H. Hayashii, M. Hazumi, I. Higuchi, L. Hinz, T. Hokuue, Y. Hoshi, W.-S. Hou, Y. B. Hsiung, H.-C. Huang, T. Igaki, Y. Igarashi, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, H. Iwasaki, Y. Iwasaki, H. K. Jang, J. H. Kang, J. S. Kang, P. Kapusta, S. U. Kataoka, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, D. W. Kim, H. J. Kim, H. O. Kim, Hyunwoo Kim, J. H. Kim, S. K. Kim, K. Kinoshita, S. Kobayashi, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, S. Kumar, A. Kuzmin, Y.-J. Kwon, J. S. Lange, G. Leder, S. H. Lee, J. Li, S.-W. Lin, D. Liventsev, R.-S. Lu, J. MacNaughton, G. Majumder, F. Mandl, D. Marlow, T. Matsuishi, S. Matsumoto, T. Matsumoto, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, G. R. Moloney, T. Mori, T. Nagamine, Y. Nagasaka, T. Nakadaira, E. Nakano, M. Nakao, J. W. Nam, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, H. Palka, C. W. Park, H. Park, K. S. Park, L. S. Peak, J.-P. Perroud, L. E. Piilonen, F. J. Ronga, M. Rozanska, K. Rybicki, H. Sagawa, S. Saitoh, Y. Sakai, T. R. Sarangi, M. Satapathy, A. Satpathy, O. Schneider, S. Schrenk, J. Schümann, C. Schwanda, S. Semenov, K. Senyo, R. Seuster, M. E. Sevior, H. Shibuya, V. Sidorov, J. B. Singh, S. Stanič, M. Starič, A. Sugi, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, S. Suzuki, S. Y. Suzuki, T. Takahashi, F. Takasaki, K. Tamai, N. Tamura, J. Tanaka, M. Tanaka, G. N. Taylor, Y. Teramoto, S. Tokuda, T. Tomura, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, Y. Unno, S. Uno, G. Varner, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, M.-Z. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, Y. Yamashita, M. Yamauchi, H. Yanai, M. Yokoyama, Y. Yuan, Y. Yusa, C. C. Zhang, Z. P. Zhang, Y. Zheng, V. Zhilich, and D. Žontar
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, KEKB, Resonance, B meson, Measure (mathematics), Mixing (physics)
Abstract: We report a precise determination of the Z0-B0 mixing parameter Δmd based on the time evolution of same-sign and opposite-sign dilepton yields in Y(45) decays. Data were collected with the Belle detector at KEKB. Using data samples of 29.4 fb-1 recorded at the γ(4S) resonance and 3.0 fb-1 recorded at an energy 60 MeV below the resonance, we measure Δmd=[0.503±0.008(stat) ±0.010(syst)] ps-1. From the same analysis, we also measure the ratio of charged and neutral B meson production at the γ(4S), f +/f0= 1-01 ±0.03(stat)±0.09(syst), and CPT violation parameters in B0-B0 mixing, (cos θ)=0.00±0.12(stat) ±0.01(syst) and ℑ(cos θ)=0.03±0.01(stat)±0.03(syst). © 2003 The American Physical Society.
Published: 2003
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330. Measurement of Branching Fractions forB→ηcK(*)Decays

Author: F. Fang, T. Hojo, K. Abe, T. Abe, I. Adachi, H. Aihara, M. Akatsu, Y. Asano, T. Aso, V. Aulchenko, A. M. Bakich, Y. Ban, E. Banas, A. Bay, P. K. Behera, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, B. C. K. Casey, P. Chang, Y. Chao, K.-F. Chen, B. G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, Y. K. Choi, M. Danilov, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, C. Fukunaga, N. Gabyshev, A. Garmash, T. Gershon, B. Golob, T. Hara, N. C. Hastings, H. Hayashii, M. Hazumi, E. M. Heenan, T. Higuchi, L. Hinz, T. Hokuue, Y. Hoshi, W.-S. Hou, H.-C. Huang, T. Igaki, Y. Igarashi, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, H. Iwasaki, Y. Iwasaki, H. K. Jang, J. H. Kang, J. S. Kang, P. Kapusta, N. Katayama, H. Kawai, Y. Kawakami, T. Kawasaki, H. Kichimi, D. W. Kim, Heejong Kim, H. J. Kim, H. O. Kim, Hyunwoo Kim, S. K. Kim, K. Kinoshita, S. Kobayashi, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, Y.-J. Kwon, J. S. Lange, G. Leder, S. H. Lee, J. Li, D. Liventsev, R.-S. Lu, J. MacNaughton, F. Mandl, S. Matsumoto, T. Matsumoto, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, G. R. Moloney, T. Mori, T. Nagamine, Y. Nagasaka, T. Nakadaira, E. Nakano, M. Nakao, H. Nakazawa, J. W. Nam, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, C. W. Park, H. Park, K. S. Park, J.-P. Perroud, M. Peters, L. E. Piilonen, F. J. Ronga, N. Root, M. Rozanska, K. Rybicki, H. Sagawa, S. Saitoh, Y. Sakai, H. Sakamoto, M. Satapathy, O. Schneider, S. Schrenk, C. Schwanda, S. Semenov, K. Senyo, R. Seuster, M. E. Sevior, H. Shibuya, B. Shwartz, V. Sidorov, N. Soni, S. Stanič, M. Starič, A. Sugi, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, K. Suzuki, S. Suzuki, T. Takahashi, F. Takasaki, N. Tamura, J. Tanaka, M. Tanaka, G. N. Taylor, Y. Teramoto, S. Tokuda, T. Tomura, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, S. Uno, Y. Ushiroda, S. E. Vahsen, G. Varner, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, M.-Z. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, Y. Yamashita, M. Yamauchi, H. Yanai, J. Yashima, M. Yokoyama, Y. Yuan, Y. Yusa, C. C. Zhang, J. Zhang, Z. P. Zhang, V. Zhilich, and D. Žontar
Subjects: Physics, Particle physics, KEKB, Meson, Electron–positron annihilation, General Physics and Astronomy, CP violation, Branching (polymer chemistry)
Abstract: We report measurements of branching fractions for charged and neutral $B\ensuremath{\rightarrow}{\ensuremath{\eta}}_{c}K$ decays where the ${\ensuremath{\eta}}_{c}$ meson is reconstructed in the ${K}_{S}^{0}{K}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\pi}}^{\ensuremath{\mp}}$, ${K}^{+}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}$, ${K}^{*0}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$, and $p\overline{p}$ decay channels. The neutral ${B}^{0}$ channel is a $CP$ eigenstate and can be used to measure the $CP$ violation parameter $\mathrm{sin} 2{\ensuremath{\varphi}}_{1}$. We also report the first observation of the ${B}^{0}\ensuremath{\rightarrow}{\ensuremath{\eta}}_{c}{K}^{*0}$ mode. The results are based on an analysis of $29.1\text{ }{\mathrm{f}\mathrm{b}}^{\ensuremath{-}1}$ of data collected by the Belle detector at KEKB.
Published: 2003
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331. Measurement of the Electroweak Penguin ProcessB→Xsℓ+ℓ−

Author: J. Kaneko, K. Abe, T. Abe, I. Adachi, Byoung Sup Ahn, H. Aihara, M. Akatsu, Y. Asano, T. Aso, V. Aulchenko, T. Aushev, A. M. Bakich, Y. Ban, E. Banas, W. Bartel, A. Bay, P. K. Behera, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, B. C. K. Casey, P. Chang, Y. Chao, K.-F. Chen, B. G. Cheon, R. Chistov, Y. Choi, Y. K. Choi, M. Danilov, L. Y. Dong, S. Eidelman, V. Eiges, Y. Enari, C. W. Everton, F. Fang, H. Fujii, C. Fukunaga, N. Gabyshev, A. Garmash, T. Gershon, R. Guo, J. Haba, F. Handa, T. Hara, Y. Harada, N. C. Hastings, H. Hayashii, M. Hazumi, E. M. Heenan, I. Higuchi, T. Higuchi, L. Hinz, T. Hojo, Y. Hoshi, W.-S. Hou, H.-C. Huang, T. Igaki, Y. Igarashi, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, H. Iwasaki, Y. Iwasaki, H. K. Jang, J. H. Kang, J. S. Kang, N. Katayama, H. Kawai, Y. Kawakami, N. Kawamura, T. Kawasaki, H. Kichimi, D. W. Kim, Heejong Kim, H. J. Kim, H. O. Kim, Hyunwoo Kim, S. K. Kim, K. Kinoshita, S. Kobayashi, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, S. Kumar, Y.-J. Kwon, J. S. Lange, G. Leder, S. H. Lee, J. Li, A. Limosani, R.-S. Lu, J. MacNaughton, G. Majumder, F. Mandl, D. Marlow, S. Matsumoto, T. Matsumoto, W. Mitaroff, K. Miyabayashi, Y. Miyabayashi, H. Miyake, G. R. Moloney, T. Mori, T. Nagamine, Y. Nagasaka, T. Nakadaira, E. Nakano, M. Nakao, J. W. Nam, K. Neichi, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, Y. Onuki, W. Ostrowicz, H. Ozaki, P. Pakhlov, H. Palka, C. W. Park, H. Park, K. S. Park, J.-P. Perroud, M. Peters, L. E. Piilonen, N. Root, K. Rybicki, H. Sagawa, Y. Sakai, H. Sakamoto, M. Satapathy, A. Satpathy, O. Schneider, S. Schrenk, C. Schwanda, S. Semenov, K. Senyo, R. Seuster, H. Shibuya, B. Shwartz, V. Sidorov, J. B. Singh, N. Soni, S. Stanič, K. Sumisawa, T. Sumiyoshi, K. Suzuki, S. Suzuki, S. Y. Suzuki, S. K. Swain, H. Tajima, T. Takahashi, F. Takasaki, K. Tamai, N. Tamura, J. Tanaka, M. Tanaka, G. N. Taylor, Y. Teramoto, S. Tokuda, M. Tomoto, T. Tomura, K. Trabelsi, W. Trischuk, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, S. Uno, Y. Ushiroda, G. Varner, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, M.-Z. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, Y. Yamashita, M. Yamauchi, H. Yanai, J. Yashima, M. Yokoyama, Y. Yuan, Y. Yusa, C. C. Zhang, J. Zhang, Z. P. Zhang, Y. Zheng, V. Zhilich, and D. Žontar
Subjects: Physics, Particle physics, Strange quark, Muon, Branching fraction, Electron–positron annihilation, Hadron, Electroweak interaction, General Physics and Astronomy, Nuclear physics, KEKB, High Energy Physics::Experiment, B meson, Nuclear Experiment
Abstract: We report the first measurement of the branching fraction for the inclusive decay B → X s l + l - , where l is either an electron or a muon, and X s is a hadronic recoil system that contains an s quark. We analyzed a data sample of 65.4 x 10 6 B meson pairs collected with the Belle detector at the KEKB e + e - asymmetric-energy collider. We find B(B → X s l + l - ) = [6.1 ′ 1.4(stat) + 1 . 4 - 1 . 1 (syst)] × 10 - 6 for dilepton masses greater than 0.2 GeV/c 2 .
Published: 2003
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332. Study of B meson decays to three-body charmless hadronic final states

Author: A. Garmash, K. Abe, T. Abe, I. Adachi, H. Aihara, M. Akatsu, Y. Asano, T. Aushev, A. M. Bakich, Y. Ban, I. Bedny, P. K. Behera, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, T. E. Browder, B. C. K. Casey, P. Chang, Y. Chao, K.-F. Chen, B. G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, A. Chuvikov, M. Danilov, M. Dash, L. Y. Dong, A. Drutskoy, S. Eidelman, V. Eiges, C. Fukunaga, N. Gabyshev, T. Gershon, B. Golob, A. Gordon, R. Guo, J. Haba, C. Hagner, T. Hara, N. C. Hastings, H. Hayashii, M. Hazumi, I. Higuchi, L. Hinz, T. Hokuue, Y. Hoshi, W.-S. Hou, H.-C. Huang, Y. Igarashi, T. Iijima, K. Inami, R. Itoh, H. Iwasaki, M. Iwasaki, Y. Iwasaki, H. K. Jang, J. H. Kang, J. S. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, D. W. Kim, H. J. Kim, Hyunwoo Kim, S. K. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, A. Kuzmin, Y.-J. Kwon, G. Leder, S. H. Lee, J. Li, S.-W. Lin, J. MacNaughton, G. Majumder, F. Mandl, H. Matsumoto, A. Matyja, W. Mitaroff, H. Miyata, G. R. Moloney, T. Mori, Y. Nagasaka, T. Nakadaira, E. Nakano, M. Nakao, J. W. Nam, Z. Natkaniec, S. Nishida, O. Nitoh, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, H. Palka, C. W. Park, H. Park, K. S. Park, N. Parslow, L. E. Piilonen, M. Rozanska, H. Sagawa, S. Saitoh, Y. Sakai, T. R. Sarangi, M. Satapathy, A. Satpathy, O. Schneider, J. Schümann, C. Schwanda, A. J. Schwartz, S. Semenov, K. Senyo, R. Seuster, M. E. Sevior, H. Shibuya, B. Shwartz, V. Sidorov, J. B. Singh, N. Soni, S. Stanič, M. Starič, A. Sugi, K. Sumisawa, T. Sumiyoshi, S. Suzuki, S. Y. Suzuki, S. K. Swain, F. Takasaki, K. Tamai, N. Tamura, J. Tanaka, M. Tanaka, Y. Teramoto, T. Tomura, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, Y. Unno, S. Uno, G. Varner, K. E. Varvell, C. H. Wang, M.-Z. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, H. Yamamoto, Y. Yamashita, M. Yamauchi, H. Yanai, Y. Yuan, Y. Yusa, J. Zhang, Z. P. Zhang, V. Zhilich, and D. Žontar
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, High Energy Physics - Experiment (hep-ex), KEKB, Hadron, CP violation, FOS: Physical sciences, B meson, High Energy Physics - Experiment
Abstract: We report results of a study of charmless B meson decays to three-body KPiPi, KKPi and KKK final states. Measurements of branching fractions for B decays to K+0Pi+Pi-, K+K+K-, K0K+K-, KsKsK+ and KsKsKs final states are presented. The decays B0=>K0K+K-, B+=>KsKsK+ and B0=>KsKsKs are observed for the first time. We also report evidence for B+=>K+K-Pi+ decay. For the three-body final states K0K+K-, KsKsPi+, K+K+Pi- and K-Pi+Pi+ 90% confidence level upper limits are reported. Finally, we discuss the possibility of using the three-body B0=>KsK+K- decay for CP violation studies. The results are obtained with a 78 fb^-1 data sample collected at the Y(4S) resonance by the Belle detector operating at the KEKB asymmetric energy e+e- collider., 15 pages, 6 figures. To be submitted to PRD
Published: 2003
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333. Performance of the Atlas electromagnetic calorimeter barrel module 0

Author: Fernando Barreiro, F. Chollet, Bruno Mansoulie, P. Pétroff, M. El Kacimi, Luc Poggioli, D. Imbault, M. Jevaud, Michael Rijssenbeek, P. Perrodo, F. Rossel, J. Dodd, M. Moynot, Ph Martin, J. Ban, Irena Nikolic-Audit, G. Costa, G. Garcia, Marcello Fanti, J. A. Parsons, M.-L. Gallin-Martel, X. Riccadona, D. Dzahini, Stefan Rydström, B. Beaugiraud, A. Jérémie, J.F. Muraz, M. Leite, Luis Hervas, O. Le Dortz, A. Le Van Suu, Linda Megner, Remi Lafaye, F. Ohlsson-Malek, Jozsef Toth, Y. El Mouahhidi, V. Vuillemin, A. Belymam, Elemer Nagy, A. Ferrari, Marcello Mazzanti, B. Hackenburg, J. J. Veillet, J. Egdemir, M. Citterio, L. Mandelli, Ph. Schwemling, W. Seidl, J. Beck Hansen, W.J. Willis, Alexey Talyshev, J. Ballansat, R. Snopkov, W. E. Cleland, Silvia Resconi, Luis Labarga, P. Delebecque, J-Y. Hostachy, Johann Collot, T. Leflour, Mark Pearce, J. Del Peso, J. Colas, Claire Bourdarios, A. Hoffman, M. Delmastro, L. Neukermans, Fares Djama, G. Guilhem, Ryszard Stroynowski, B. Belhorma, A. Bazan, K. Yip, M. Chalifour, Didier Lacour, R. Zitoun, J. Thion, Ilias Efthymiopoulos, R. Bernard, R. Cherkaoui, Emmanuel Monnier, B. Canton, W. Bonivento, J. Hoffman, Bengt Lund-Jensen, M. Raymond, J. Bremer, J. F. Renardy, H. S. Chen, O. Martin, Patrick Fassnacht, M. Seman, M. Hakimi, Ph. Ghez, C.P. Marin, Pascal Pralavorio, J. Prast, H. Cunitz, B. Dinkespiler, S. Simion, A. Shousharo, Hong Ma, Helio Takai, D. Breton, J.P. Taguet, Jingbo Ye, D. Makowiecki, J. Lundqvist, D. Lissauer, Laura Perini, A. Ben Mansour, D. Sauvage, A. Chekhtman, Driss Benchekroun, L. Moneta, L. Martin, Daniel Fournier, B. Aubert, J. Lesueur, Stéphane Jézéquel, Fabrice Hubaut, R. Engelmann, Francesco Lanni, Alexey Maslennikov, S. Hassani, W. Bertoli, H. Kambara, Sylvain Tisserant, M. Leltchouk, D.C. Rahm, C. Clement, E. Augé, Patrick Puzo, S. Rescia, I. Wingerter-Seez, B. Repetti, N. Seguin-Moreau, V.M. Aulchenko, H. Ghazlane, J. Kierstead, S. Fichet, P. Schilly, G. Battistoni, J. McDonald, G. Sauvage, F. Orsini, Veljko Radeka, V. Tocut, G. M. Kolachev, J.M. Noppe, Bertrand Laforge, G. Perrot, N. Massol, David Rousseau, A. Idrissi, Abdeslam Hoummada, D. Cavalli, J. Steffens, N. Dumont-Dayot, Howard Gordon, Y. Zolnierowski, I. Falleau, A. Le Coroller, D. Martin, Y. Jacquier, Pierre Barrillon, S. Negroni, J. Teiger, P.-Y. Duval, Srinivasan Rajagopalan, W. Sippach, M. Wielers, Joost Vossebeld, B. Merkel, V. M. Malyshev, P. Cros, G. Mace, J. Boniface, N. Cartiglia, A. Mirea, J. Farrell, C. Olivier, L. Carminati, L. Hinz, J.L. Chevalley, A. Camard, P. Karst, F. Gianotti, Giuseppe Francesco Tartarelli, G. E. Pospelov, Dirk Zerwas, C. Benchouk, P. Pailler, G. Parrour, J. Ernwein, C. Alexa, Vassili Kazanin, S. Rodier, F. Astesan, J. Belorgey, O. Gaumer, S. Saboumazrag, F. Henry-Couannier, C. Le Maner, J.P. Richer, Allan G Clark, C. Girard, D. Nicod, A. Gara, H. Przysiezniak, L. Serin, Yu. A. Tikhonov, L. Di Ciaccio, E.M. Abouelouafa, R. L. McCarthy, M. Gouanère, P. de Saintignon, I. Stumer, J. Schwindling, K. Kordas, C. De La Taille, C. Driouichi, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), ATLAS, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Clark, Allan Geoffrey, Efthymiopoulos, Ilias, and Moneta, Lorenzo
Subjects: Nuclear and High Energy Physics, Particle physics, Physics::Instrumentation and Detectors, Barrel (horology), Mechanical engineering, ddc:500.2, Cryogenics, 01 natural sciences, 7. Clean energy, Data acquisition, Atlas (anatomy), 0103 physical sciences, medicine, Calibration, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Detectors and Experimental Techniques, 010306 general physics, Instrumentation, Physics, Large Hadron Collider, 010308 nuclear & particles physics, Signal reconstruction, medicine.anatomical_structure, Electromagnetic calorimeter, High Energy Physics::Experiment, Calorimeters particle physics
Abstract: The construction and performance of the barrel pre-series module 0 of the future ATLAS electromagnetic calorimeter at the LHC is described. The signal reconstruction and performance of ATLAS-like electronics has been studied. The signal to noise ratio for muons has been found to be 7.11+-0.07. An energy resolution of better than 9.5% GeV^1/2/sqrt{E} (sampling term) has been obtained with electron beams of up to 245GeV. The uniformity of the response to electrons in an area of Delta_eta x Delta_phi = 1.2 x 0.075 has been measured to be better than 0.8%.
Published: 2003
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334. Performance of the ATLAS electromagnetic calorimeter end-cap module 0

Author: Luc Poggioli, M. Seman, W. Bertoli, H. Kambara, M. Hakimi, A. Le Van Suu, Stéphane Jézéquel, L. Hinz, Ilias Efthymiopoulos, C. Le Maner, Patrick Puzo, G. Costa, Allan G Clark, A. Le Coroller, D. Martin, Elemer Nagy, Y. Jacquier, P. Schilly, Pierre Barrillon, A. Jérémie, P. Karst, F. Gianotti, A. Camard, C. Benchouk, Laurent Serin, P. Pailler, G. Battistoni, Yu. A. Tikhonov, W. Seidl, F. Ohlsson-Malek, Mark Pearce, M. El Kacimi, D. Imbault, B. Beaugiraud, A. Mirea, L. Di Ciaccio, P.-Y. Duval, C. Alexa, Vassili Kazanin, Claire Bourdarios, Marcello Mazzanti, S. Rodier, Alexey Talyshev, R. Engelmann, Y. El Mouahhidi, A. Shousharo, J. J. Veillet, J. Belorgey, V. Vuillemin, Sylvain Tisserant, V. M. Malyshev, Remi Lafaye, T. Leflour, Abdeslam Hoummada, F. Henry-Couannier, F. Astesan, A. Belymam, E.M. Abouelouafa, L. Martin, J-Y. Hostachy, L. Mandelli, Ph. Schwemling, M. Chalifour, V. Tocut, J. Thion, R. Cherkaoui, J.P. Richer, O. Gaumer, J. Bremer, J. F. Renardy, J. Beck Hansen, M. Raymond, Ryszard Stroynowski, Alexey Maslennikov, B. Belhorma, R. Bernard, C. Girard, David Rousseau, A. Idrissi, Hong Ma, D. Breton, Johann Collot, R. Snopkov, P. Cros, G. Guilhem, N. Dumont-Dayot, Howard Gordon, S. Saboumazrag, Jozsef Toth, S. Fichet, R. L. McCarthy, J. Del Peso, N. Seguin-Moreau, J. Farrell, Linda Megner, G. Mace, C. Olivier, Pascal Pralavorio, O. Martin, Patrick Fassnacht, Fares Djama, J. Prast, A. Gara, Francesco Lanni, J.L. Chevalley, B. Aubert, M. Gouanère, D. Nicod, M. Leltchouk, D.C. Rahm, C. Clement, H. Przysiezniak, J. Boniface, N. Cartiglia, Fernando Barreiro, J. Teiger, Srinivasan Rajagopalan, Bengt Lund-Jensen, M. Delmastro, L. Neukermans, E. Augé, J. Hoffman, I. Stumer, R. Zitoun, S. Negroni, J. Schwindling, H. Cunitz, J.P. Taguet, F. Chollet, Bruno Mansoulie, Giuseppe Francesco Tartarelli, G. E. Pospelov, Dirk Zerwas, J. Ballansat, Fabrice Hubaut, J. Steffens, Y. Zolnierowski, F. Orsini, I. Falleau, M. Jevaud, Joost Vossebeld, B. Merkel, W. Sippach, D. Sauvage, W. Bonivento, G. Parrour, J. Ernwein, Michael Rijssenbeek, J. Egdemir, M. Citterio, K. Kordas, G. Perrot, Driss Benchekroun, L. Moneta, J. McDonald, P. Perrodo, M. Wielers, X. Riccadona, J.M. Noppe, C. De La Taille, C. Driouichi, S. Hassani, Luis Hervas, Irena Nikolic-Audit, N. Massol, A. Ferrari, B. Hackenburg, O. Le Dortz, B. Dinkespiler, Stefan Rydström, Helio Takai, Jingbo Ye, Emmanuel Monnier, B. Canton, W. E. Cleland, A. Bazan, Didier Lacour, D. Lissauer, F. Rossel, J. Dodd, M. Moynot, Ph Martin, J. Lundqvist, J. Ban, K. Yip, G. Garcia, Marcello Fanti, J. A. Parsons, D. Makowiecki, A. Chekhtman, P. Pétroff, Daniel Fournier, Leonardo Carminati, M. Leite, Luis Labarga, P. Delebecque, A. Hoffman, Ph. Ghez, H. S. Chen, S. Simion, A. Ben Mansour, M.-L. Gallin-Martel, W.J. Willis, J. Lesueur, S. Rescia, I. Wingerter-Seez, B. Repetti, J. Colas, C.P. Marin, V.M. Aulchenko, H. Ghazlane, J. Kierstead, G. Sauvage, Veljko Radeka, G. M. Kolachev, Bertrand Laforge, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), ATLAS, Clark, Allan Geoffrey, Efthymiopoulos, Ilias, Moneta, Lorenzo, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Atlas (topology), Particle physics, ddc:500.2, 01 natural sciences, Calorimeter, Nuclear physics, Calorimeters, Electromagnetic calorimeter, Pseudorapidity, 0103 physical sciences, Calibration, High Energy Physics::Experiment, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, 010306 general physics, Nuclear Experiment, Instrumentation, Image resolution
Abstract: The construction and beam test results of the ATLAS electromagnetic end-cap calorimeter pre-production module 0 are presented. The stochastic term of the energy resolution is between 10% GeV^1/2 and 12.5% GeV^1/2 over the full pseudorapidity range. Position and angular resolutions are found to be in agreement with simulation. A global constant term of 0.6% is obtained in the pseudorapidity range 2.5 < eta < 3.2 (inner wheel).
Published: 2003
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335. Observation of the decay B0--lambda+cp

Author: N, Gabyshev, H, Kichimi, K, Abe, R, Abe, T, Abe, I, Adachi, H, Aihara, M, Akatsu, Y, Asano, T, Aso, V, Aulchenko, T, Aushev, A M, Bakich, Y, Ban, E, Banas, A, Bay, I, Bedny, I, Bizjak, A, Bondar, A, Bozek, M, Bracko, J, Brodzicka, T E, Browder, B C K, Casey, M-C, Chang, P, Chang, Y, Chao, K-F, Chen, B G, Cheon, R, Chistov, S-K, Choi, Y, Choi, Y K, Choi, M, Danilov, L Y, Dong, J, Dragic, A, Drutskoy, S, Eidelman, V, Eiges, Y, Enari, F, Fang, C, Fukunaga, A, Garmash, T, Gershon, B, Golob, J, Haba, C, Hagner, F, Handa, T, Hara, K, Hasuko, H, Hayashii, M, Hazumi, I, Higuchi, L, Hinz, T, Hojo, T, Hokuue, Y, Hoshi, W-S, Hou, Y B, Hsiung, H-C, Huang, T, Igaki, Y, Igarashi, T, Iijima, K, Inami, A, Ishikawa, R, Itoh, H, Iwasaki, Y, Iwasaki, H K, Jang, J H, Kang, J S, Kang, P, Kapusta, S U, Kataoka, N, Katayama, H, Kawai, T, Kawasaki, D W, Kim, H J, Kim, H O, Kim, Hyunwoo, Kim, J H, Kim, S K, Kim, K, Kinoshita, S, Kobayashi, S, Korpar, P, Krizan, P, Krokovny, R, Kulasiri, A, Kuzmin, Y-J, Kwon, J S, Lange, G, Leder, S H, Lee, J, Li, S-W, Lin, D, Liventsev, R-S, Lu, J, MacNaughton, G, Majumder, F, Mandl, T, Matsuishi, S, Matsumoto, T, Matsumoto, W, Mitaroff, Y, Miyabayashi, H, Miyake, H, Miyata, G R, Moloney, T, Mori, T, Nagamine, Y, Nagasaka, T, Nakadaira, E, Nakano, M, Nakao, J W, Nam, Z, Natkaniec, S, Nishida, O, Nitoh, S, Noguchi, T, Nozaki, S, Ogawa, T, Ohshima, T, Okabe, S, Okuno, S L, Olsen, Y, Onuki, W, Ostrowicz, H, Ozaki, P, Pakhlov, H, Palka, C W, Park, H, Park, K S, Park, L S, Peak, J-P, Perroud, L E, Piilonen, M, Rozanska, K, Rybicki, H, Sagawa, S, Saitoh, Y, Sakai, T R, Sarangi, M, Satapathy, A, Satpathy, O, Schneider, S, Schrenk, J, Schümann, A J, Schwartz, S, Semenov, K, Senyo, R, Seuster, M E, Sevior, H, Shibuya, B, Shwartz, V, Sidorov, J B, Singh, N, Soni, S, Stanic, M, Staric, A, Sugi, A, Sugiyama, K, Sumisawa, T, Sumiyoshi, S, Suzuki, S Y, Suzuki, S K, Swain, T, Takahashi, F, Takasaki, K, Tamai, N, Tamura, J, Tanaka, M, Tanaka, G N, Taylor, Y, Teramoto, S, Tokuda, T, Tomura, T, Tsuboyama, T, Tsukamoto, S, Uehara, Y, Unno, S, Uno, G, Varner, K E, Varvell, C C, Wang, C H, Wang, J G, Wang, M-Z, Wang, Y, Watanabe, E, Won, B D, Yabsley, Y, Yamada, A, Yamaguchi, Y, Yamashita, M, Yamauchi, H, Yanai, Y, Yuan, Y, Yusa, C C, Zhang, Z P, Zhang, Y, Zheng, V, Zhilich, and D, Zontar
Abstract: We report the measurement of the charmed baryonic decay B(0)--Lambda(+)(c)p with a branching fraction of (2.19(+0.56)(-0.49)+/-0.32+/-0.57)x10(-5) and a statistical significance of 5.8 sigma. The errors are statistical, systematic, and the error of the Lambda(+)(c)--pK(-)pi(+) decay branching fraction. This is the first observation of a two-body baryonic B decay. The analysis is based on 78.2 fb(-1) of data accumulated at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric e(+)e(-) collider.
Published: 2002

336. Measurement of theB0−B¯0Mixing ParameterΔmdusing SemileptonicB0Decays

Author: K. Hara, M. Hazumi, K. Abe, T. Abe, I. Adachi, Byoung Sup Ahn, H. Aihara, M. Akatsu, Y. Asano, T. Aso, V. Aulchenko, T. Aushev, A. M. Bakich, Y. Ban, A. Bay, I. Bedny, P. K. Behera, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, B. C. K. Casey, P. Chang, Y. Chao, K.-F. Chen, B. G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, Y. K. Choi, M. Danilov, L. Y. Dong, J. Dragic, S. Eidelman, V. Eiges, Y. Enari, C. W. Everton, F. Fang, C. Fukunaga, N. Gabyshev, A. Garmash, T. Gershon, B. Golob, R. Guo, J. Haba, K. Hanagaki, F. Handa, T. Hara, N. C. Hastings, H. Hayashii, E. M. Heenan, I. Higuchi, T. Higuchi, L. Hinz, Y. Hoshi, W.-S. Hou, Y. B. Hsiung, S.-C. Hsu, H.-C. Huang, T. Igaki, Y. Igarashi, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, H. Iwasaki, Y. Iwasaki, H. K. Jang, H. Kakuno, J. H. Kang, J. S. Kang, N. Katayama, H. Kawai, Y. Kawakami, N. Kawamura, H. Kichimi, D. W. Kim, Heejong Kim, H. J. Kim, Hyunwoo Kim, T. H. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, S. Kumar, A. Kuzmin, Y.-J. Kwon, J. S. Lange, G. Leder, S. H. Lee, J. Li, R.-S. Lu, J. MacNaughton, G. Majumder, F. Mandl, T. Matsuishi, S. Matsumoto, T. Matsumoto, K. Miyabayashi, Y. Miyabayashi, H. Miyata, G. R. Moloney, T. Mori, T. Nagamine, Y. Nagasaka, T. Nakadaira, E. Nakano, M. Nakao, J. W. Nam, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, Y. Onuki, W. Ostrowicz, H. Ozaki, H. Palka, C. W. Park, H. Park, L. S. Peak, J.-P. Perroud, M. Peters, L. E. Piilonen, N. Root, M. Rozanska, K. Rybicki, H. Sagawa, S. Saitoh, Y. Sakai, H. Sakamoto, M. Satapathy, A. Satpathy, O. Schneider, S. Schrenk, C. Schwanda, S. Semenov, K. Senyo, R. Seuster, M. E. Sevior, H. Shibuya, B. Shwartz, J. B. Singh, N. Soni, S. Stanič, M. Starič, A. Sugi, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, K. Suzuki, S. Suzuki, S. Y. Suzuki, T. Takahashi, F. Takasaki, N. Tamura, J. Tanaka, M. Tanaka, G. N. Taylor, Y. Teramoto, S. Tokuda, M. Tomoto, T. Tomura, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, Y. Unno, S. Uno, Y. Ushiroda, G. Varner, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, M.-Z. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, Y. Yamashita, M. Yamauchi, H. Yanai, M. Yokoyama, Y. Yuan, Y. Yusa, Z. P. Zhang, V. Zhilich, and D. Žontar
Subjects: Physics, Particle physics, High Energy Physics::Lattice, High Energy Physics::Phenomenology, General Physics and Astronomy, Resonance, law.invention, Distribution (mathematics), KEKB, law, High Energy Physics::Experiment, B meson, Collider, Mixing (physics)
Abstract: We present a measurement of the B0-Bmacr;(0) mixing parameter Deltam(d) using neutral B meson pairs in a 29.1 fb(-1) data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We exclusively reconstruct one neutral B meson in the semileptonic B0-->D(*-)l(+)nu decay mode and identify the flavor of the accompanying B meson from its decay products. From the distribution of the time intervals between the two flavor-tagged B meson decay points, we obtain Deltam(d)=(0.494+/-0.012+/-0.015) ps(-1), where the first error is statistical and the second error is systematic.
Published: 2002
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337. Measurement of Branching Fractions and Charge Asymmetries for Two-Body B Meson Decays with Charmonium

Author: Y. Kawakami, Y. Iwasaki, Y. J. Kwon, O. Schneider, H. K. Jang, J. W. Nam, D. Liventsev, T. Hojo, T. Iijima, T. Nakadaira, Frederic Jean Ronga, I. Bizjak, G. S. Varner, V.A. Sidorov, Masashi Yokoyama, Y. Ban, Masashi Hazumi, D. Žontar, Tsukasa Aso, S. Noguchi, K. Kinoshita, S. Saitoh, P. Pakhlov, G. N. Taylor, Kai-Feng Chen, T. Aushev, B. C. K. Casey, K. Rybicki, K. Senyo, S. U. Kataoka, S. Uno, R. Abe, C. Schwanda, A. Satpathy, O. Nitoh, N. Soni, E. Nakano, T. E. Browder, R. Itoh, Hiroaki Aihara, H. O. Kim, I. Adachi, N. Tamura, S. Ogawa, Gobinda Majumder, Hiroyuki Iwasaki, A. Yamaguchi, T. Tsukamoto, Meng Wang, H. Park, A. Bozek, H. Miyata, J. S. Kang, Prafulla Kumar Behera, N. C. Hastings, Semen Eidelman, T. Takahashi, A. Drutskoy, A. Ishikawa, A. Bay, H. Yanai, Y. Sakai, S. Y. Suzuki, Byung Gu Cheon, S. Kobayashi, T. Abe, T. Nozaki, F. Takasaki, P. Križan, Alexander Bondar, S. Nishida, K. Sumisawa, J. H. Kang, Rong-Shyang Lu, L. Hinz, B. Golob, H. Kichimi, T. Hokuue, Samo Korpar, M. Danilov, Shaji Kumar, W. S. Hou, Kevin Varvell, J. Dragic, C. C. Wang, Yasuhiko Yamada, Ascelin Gordon, M. Akatsu, S. Uehara, L. Y. Dong, Y. Hoshi, C. W. Park, E. Won, Y. Chao, Daniel Robert Marlow, T. Mori, Rolf Seuster, S. L. Olsen, S. K. Kim, H. Palka, L. E. Piilonen, R. Kulasiri, J. MacNaughton, Hyun Woo Kim, T. Kawasaki, R. Chistov, Y. Choi, T. Sumiyoshi, A. M. Bakich, Z. P. Zhang, P. Krokovny, J. B. Singh, T. Matsumoto, S. K. Choi, A. Sugi, I. Higuchi, T. J. Gershon, J. Haba, D. W. Kim, Y. Watanabe, T. Tsuboyama, K. Inami, Hyunyong Kim, G. Leder, Y. Onuki, F. Mandl, K. Tamai, S. Matsumoto, M. Satapathy, Kazuo Abe, Y. Asano, P. Kapusta, S. Okuno, Chikara Fukunaga, Y. Teramoto, Bruce Yabsley, T. Okabe, H. Shibuya, J. Tanaka, V. Eiges, Y. Yamashita, H. Ozaki, S. Schrenk, T. Nagamine, H. C. Huang, S. Semenov, W. A. Mitaroff, J. G. Wang, W. Ostrowicz, M. D. Peters, P. Chang, K. Miyabayashi, C. H. Wang, S. H. Lee, Jolanta Brodzicka, M. Starič, M. H. Tanaka, Hiroyuki Sagawa, T. Tomura, H. Nakazawa, J. Li, N. Katayama, A. Garmash, H. Kawai, Z. Natkaniec, T. Ohshima, N. Gabyshev, You-Jin Yuan, M. Bračko, and Samo Stanič
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, Branching fraction, Hadron, High Energy Physics::Phenomenology, FOS: Physical sciences, Quarkonium, J/psi meson, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), KEKB, CP violation, B meson, High Energy Physics::Experiment
Abstract: We report branching fractions and charge asymmetries for exclusive decays of charged and neutral B mesons to two-body final states containing a charmonium meson, J/psi or psi(2S). This result is based on a 29.4 fb^{-1} data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric e+e- collider., 13 pages, 5 figures, revtex
Published: 2002

338. Observation ofDs+K−and Evidence forDs+π−Final States in NeutralBDecays

Author: P. Krokovny, K. Abe, T. Abe, I. Adachi, Byoung Sup Ahn, H. Aihara, M. Akatsu, Y. Asano, T. Aso, V. Aulchenko, T. Aushev, A. M. Bakich, Y. Ban, E. Banas, A. Bay, I. Bedny, P. K. Behera, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, B. C. K. Casey, P. Chang, Y. Chao, K.-F. Chen, B. G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, M. Danilov, L. Y. Dong, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, C. W. Everton, F. Fang, C. Fukunaga, N. Gabyshev, A. Garmash, T. Gershon, B. Golob, A. Gordon, R. Guo, J. Haba, K. Hanagaki, F. Handa, Y. Harada, H. Hayashii, M. Hazumi, E. M. Heenan, T. Higuchi, L. Hinz, T. Hojo, T. Hokuue, Y. Hoshi, W.-S. Hou, H.-C. Huang, T. Igaki, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, H. Iwasaki, H. K. Jang, J. Kaneko, J. H. Kang, J. S. Kang, N. Katayama, H. Kawai, Y. Kawakami, N. Kawamura, T. Kawasaki, H. Kichimi, D. W. Kim, Heejong Kim, H. J. Kim, H. O. Kim, Hyunwoo Kim, S. K. Kim, K. Kinoshita, S. Kobayashi, S. Korpar, P. Križan, R. Kulasiri, S. Kumar, A. Kuzmin, Y.-J. Kwon, J. S. Lange, G. Leder, S. H. Lee, J. Li, A. Limosani, D. Liventsev, R.-S. Lu, J. MacNaughton, G. Majumder, F. Mandl, D. Marlow, T. Matsuishi, S. Matsumoto, T. Matsumoto, W. Mitaroff, K. Miyabayashi, Y. Miyabayashi, H. Miyake, H. Miyata, G. R. Moloney, T. Mori, A. Murakami, T. Nagamine, Y. Nagasaka, T. Nakadaira, E. Nakano, M. Nakao, H. Nakazawa, J. W. Nam, Z. Natkaniec, K. Neichi, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. L. Olsen, Y. Onuki, W. Ostrowicz, H. Ozaki, P. Pakhlov, C. W. Park, H. Park, J.-P. Perroud, M. Peters, L. E. Piilonen, F. J. Ronga, N. Root, K. Rybicki, H. Sagawa, S. Saitoh, Y. Sakai, H. Sakamoto, M. Satapathy, A. Satpathy, O. Schneider, C. Schwanda, S. Semenov, K. Senyo, H. Shibuya, B. Shwartz, V. Sidorov, J. B. Singh, S. Stanič, M. Starič, A. Sugi, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, K. Suzuki, S. Suzuki, S. Y. Suzuki, S. K. Swain, T. Takahashi, F. Takasaki, K. Tamai, N. Tamura, J. Tanaka, M. Tanaka, G. N. Taylor, Y. Teramoto, S. Tokuda, T. Tomura, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, Y. Unno, S. Uno, Y. Ushiroda, G. Varner, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, M.-Z. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, Y. Yamashita, M. Yamauchi, H. Yanai, J. Yashima, Y. Yuan, Y. Yusa, C. C. Zhang, J. Zhang, Z. P. Zhang, Y. Zheng, V. Zhilich, and D. Žontar
Subjects: Physics, Nuclear magnetic resonance, KEKB, Annihilation, Branching fraction, Electron–positron annihilation, Pi, Analytical chemistry, General Physics and Astronomy, Value (computer science), B meson
Abstract: We report the first observation of a B meson decay that is not accessible by a direct spectator process. The channel B(0)-->D(+)(s)K- is found in a sample of 85 x 10(6) BB; events, collected with the Belle detector at KEKB, with a branching fraction B(B(0)-->D(+)(s)K-)=(4.6(+1.2)(-1.1)+/-1.3) x 10(-5). We also obtain evidence for the B0-->D(+)(s)pi(-) decay with branching fraction B(B0-->D(+)(s)pi(-))=(2.4(+1.0)(-0.8)+/-0.7) x 10(-5). This value may be used to extract a model-dependent value of |V(ub)|.
Published: 2002
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339. Improved measurement of mixing-inducedCPviolation in the neutralBmeson system

Author: K. Abe, T. Abe, I. Adachi, H. Aihara, M. Akatsu, Y. Asano, T. Aso, V. Aulchenko, T. Aushev, A. M. Bakich, E. Banas, A. Bay, P. K. Behera, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, B. C. K. Casey, P. Chang, Y. Chao, K.-F. Chen, B. G. Cheon, R. Chistov, Y. Choi, Y. K. Choi, M. Danilov, L. Y. Dong, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, C. W. Everton, F. Fang, H. Fujii, C. Fukunaga, N. Gabyshev, A. Garmash, T. Gershon, B. Golob, K. Gotow, R. Guo, J. Haba, K. Hanagaki, F. Handa, K. Hara, T. Hara, Y. Harada, N. C. Hastings, H. Hayashii, M. Hazumi, E. M. Heenan, I. Higuchi, T. Higuchi, L. Hinz, T. Hojo, T. Hokuue, Y. Hoshi, W.-S. Hou, H.-C. Huang, T. Igaki, Y. Igarashi, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, H. Iwasaki, Y. Iwasaki, H. K. Jang, H. Kakuno, J. Kaneko, J. H. Kang, J. S. Kang, N. Katayama, H. Kawai, Y. Kawakami, N. Kawamura, T. Kawasaki, H. Kichimi, D. W. Kim, Heejong Kim, H. J. Kim, H. O. Kim, Hyunwoo Kim, K. Kinoshita, S. Kobayashi, K. Korotushenko, S. Korpar, P. Križan, P. Krokovny, S. Kumar, A. Kuzmin, Y.-J. Kwon, J. S. Lange, G. Leder, S. H. Lee, J. Li, A. Limosani, J. MacNaughton, G. Majumder, F. Mandl, D. Marlow, S. Matsumoto, T. Matsumoto, W. Mitaroff, K. Miyabayashi, Y. Miyabayashi, H. Miyake, G. R. Moloney, T. Mori, A. Murakami, T. Nagamine, Y. Nagasaka, T. Nakadaira, E. Nakano, M. Nakao, H. Nakazawa, J. W. Nam, Z. Natkaniec, K. Neichi, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. L. Olsen, Y. Onuki, W. Ostrowicz, H. Ozaki, P. Pakhlov, H. Palka, C. W. Park, H. Park, K. S. Park, J.-P. Perroud, L. E. Piilonen, F. J. Ronga, N. Root, M. Rozanska, K. Rybicki, H. Sagawa, S. Saitoh, Y. Sakai, H. Sakamoto, M. Satapathy, A. Satpathy, O. Schneider, S. Schrenk, C. Schwanda, S. Semenov, K. Senyo, R. Seuster, H. Shibuya, B. Shwartz, V. Sidorov, J. B. Singh, N. Soni, S. Stanič, A. Sugi, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, K. Suzuki, S. Suzuki, S. Y. Suzuki, H. Tajima, T. Takahashi, F. Takasaki, K. Tamai, N. Tamura, J. Tanaka, M. Tanaka, G. N. Taylor, Y. Teramoto, S. Tokuda, T. Tomura, K. Trabelsi, W. Trischuk, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, Y. Unno, S. Uno, N. Uozaki, Y. Ushiroda, S. E. Vahsen, G. Varner, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, M.-Z. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, H. Yamamoto, Y. Yamashita, M. Yamauchi, H. Yanai, J. Yashima, P. Yeh, M. Yokoyama, Y. Yuan, Y. Yusa, H. Yuta, C. C. Zhang, J. Zhang, Z. P. Zhang, V. Zhilich, and D. Žontar
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Electron–positron annihilation, High Energy Physics::Phenomenology, FOS: Physical sciences, Resonance, High Energy Physics - Experiment, Standard Model, High Energy Physics - Experiment (hep-ex), KEKB, Mixing (mathematics), CP violation, High Energy Physics::Experiment, B meson
Abstract: We present an improved measurement of the standard model CP violation parameter sin2phi_1 (also known as sin2beta) based on a sample of 85 times 10^6 B Bbar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. One neutral B meson is reconstructed in a J/psi K_S, psi(2S) K_S, chi_{c1} K_S, eta_c K_S, J/psi K^{*0}, or J/psi K_L CP-eigenstate decay channel and the flavor of the accompanying B meson is identified from its decay products. From the asymmetry in the distribution of the time interval between the two B meson decay points, we obtain sin2phi_1 = 0.719 +/- 0.074(stat) +/- 0.035(syst)., Comment: 10 pages, 3 figures, 3 tables, accepted for publication in PRD Rapid Communications
Published: 2002
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340. Observation ofB±→ωK±Decay

Author: R.-S. Lu, K. Abe, N. Abe, R. Abe, T. Abe, I. Adachi, H. Aihara, Y. Asano, T. Aso, V. Aulchenko, T. Aushev, A. M. Bakich, Y. Ban, E. Banas, I. Bedny, P. K. Behera, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, T. E. Browder, B. C. K. Casey, M.-C. Chang, P. Chang, Y. Chao, K.-F. Chen, B. G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, Y. K. Choi, M. Danilov, L. Y. Dong, A. Drutskoy, S. Eidelman, V. Eiges, C. W. Everton, C. Fukunaga, N. Gabyshev, T. Gershon, B. Golob, A. Gordon, R. Guo, J. Haba, T. Hara, Y. Harada, H. Hayashii, M. Hazumi, E. M. Heenan, T. Higuchi, L. Hinz, T. Hokuue, Y. Hoshi, W.-S. Hou, S.-C. Hsu, H.-C. Huang, T. Igaki, Y. Igarashi, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, H. Iwasaki, Y. Iwasaki, H. K. Jang, J. H. Kang, P. Kapusta, S. U. Kataoka, N. Katayama, H. Kawai, Y. Kawakami, N. Kawamura, T. Kawasaki, H. Kichimi, D. W. Kim, Heejong Kim, H. J. Kim, H. O. Kim, Hyunwoo Kim, S. K. Kim, K. Kinoshita, P. Krokovny, R. Kulasiri, S. Kumar, A. Kuzmin, Y.-J. Kwon, G. Leder, S. H. Lee, J. Li, D. Liventsev, J. MacNaughton, G. Majumder, F. Mandl, T. Matsuishi, S. Matsumoto, T. Matsumoto, W. Mitaroff, K. Miyabayashi, Y. Miyabayashi, H. Miyake, H. Miyata, G. R. Moloney, T. Mori, A. Murakami, T. Nagamine, Y. Nagasaka, T. Nakadaira, E. Nakano, M. Nakao, J. W. Nam, Z. Natkaniec, K. Neichi, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, F. Ohno, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, H. Palka, C. W. Park, H. Park, L. S. Peak, J.-P. Perroud, M. Peters, L. E. Piilonen, N. Root, K. Rybicki, H. Sagawa, S. Saitoh, Y. Sakai, M. Satapathy, A. Satpathy, O. Schneider, S. Schrenk, S. Semenov, K. Senyo, R. Seuster, M. E. Sevior, H. Shibuya, V. Sidorov, J. B. Singh, N. Soni, S. Stanič, M. Starič, A. Sugi, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, K. Suzuki, S. Suzuki, T. Takahashi, F. Takasaki, K. Tamai, N. Tamura, J. Tanaka, M. Tanaka, G. N. Taylor, Y. Teramoto, S. Tokuda, M. Tomoto, T. Tomura, S. N. Tovey, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, S. Uno, Y. Ushiroda, G. Varner, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, M.-Z. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, Y. Yamashita, M. Yamauchi, P. Yeh, Y. Yuan, J. Zhang, Z. P. Zhang, Y. Zheng, and D. Žontar
Subjects: Physics, General Physics and Astronomy
Published: 2002
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341. Measurement of branching fractions for B--eta(c)K(*) decays

Author: F, Fang, T, Hojo, K, Abe, T, Abe, I, Adachi, H, Aihara, M, Akatsu, Y, Asano, T, Aso, V, Aulchenko, A M, Bakich, Y, Ban, E, Banas, A, Bay, P K, Behera, I, Bizjak, A, Bondar, A, Bozek, M, Bracko, J, Brodzicka, T E, Browder, B C K, Casey, P, Chang, Y, Chao, K-F, Chen, B G, Cheon, R, Chistov, S-K, Choi, Y, Choi, Y K, Choi, M, Danilov, A, Drutskoy, S, Eidelman, V, Eiges, Y, Enari, C, Fukunaga, N, Gabyshev, A, Garmash, T, Gershon, B, Golob, T, Hara, N C, Hastings, H, Hayashii, M, Hazumi, E M, Heenan, T, Higuchi, L, Hinz, T, Hokuue, Y, Hoshi, W-S, Hou, H-C, Huang, T, Igaki, Y, Igarashi, T, Iijima, K, Inami, A, Ishikawa, R, Itoh, H, Iwasaki, Y, Iwasaki, H K, Jang, J H, Kang, J S, Kang, P, Kapusta, N, Katayama, H, Kawai, Y, Kawakami, T, Kawasaki, H, Kichimi, D W, Kim, Heejong, Kim, H J, Kim, H O, Kim, Hyunwoo, Kim, S K, Kim, K, Kinoshita, S, Kobayashi, S, Korpar, P, Krizan, P, Krokovny, R, Kulasiri, Y-J, Kwon, J S, Lange, G, Leder, S H, Lee, J, Li, D, Liventsev, R-S, Lu, J, MacNaughton, F, Mandl, S, Matsumoto, T, Matsumoto, W, Mitaroff, K, Miyabayashi, H, Miyake, H, Miyata, G R, Moloney, T, Mori, T, Nagamine, Y, Nagasaka, T, Nakadaira, E, Nakano, M, Nakao, H, Nakazawa, J W, Nam, Z, Natkaniec, S, Nishida, O, Nitoh, S, Noguchi, T, Nozaki, S, Ogawa, T, Ohshima, T, Okabe, S, Okuno, S L, Olsen, Y, Onuki, H, Ozaki, P, Pakhlov, C W, Park, H, Park, K S, Park, J-P, Perroud, M, Peters, L E, Piilonen, F J, Ronga, N, Root, M, Rozanska, K, Rybicki, H, Sagawa, S, Saitoh, Y, Sakai, H, Sakamoto, M, Satapathy, O, Schneider, S, Schrenk, C, Schwanda, S, Semenov, K, Senyo, R, Seuster, M E, Sevior, H, Shibuya, B, Shwartz, V, Sidorov, N, Soni, S, Stanic, M, Staric, A, Sugi, A, Sugiyama, K, Sumisawa, T, Sumiyoshi, K, Suzuki, S, Suzuki, T, Takahashi, F, Takasaki, N, Tamura, J, Tanaka, M, Tanaka, G N, Taylor, Y, Teramoto, S, Tokuda, T, Tomura, K, Trabelsi, T, Tsuboyama, T, Tsukamoto, S, Uehara, K, Ueno, S, Uno, Y, Ushiroda, S E, Vahsen, G, Varner, K E, Varvell, C C, Wang, C H, Wang, J G, Wang, M-Z, Wang, Y, Watanabe, E, Won, B D, Yabsley, Y, Yamada, A, Yamaguchi, Y, Yamashita, M, Yamauchi, H, Yanai, J, Yashima, M, Yokoyama, Y, Yuan, Y, Yusa, C C, Zhang, J, Zhang, Z P, Zhang, V, Zhilich, and D, Zontar
Abstract: We report measurements of branching fractions for charged and neutral B--eta(c)K decays where the eta(c) meson is reconstructed in the K(0)(S)K+/-pi(-/+), K+K-pi(0), K(*0)K-pi(+), and pp; decay channels. The neutral B0 channel is a CP eigenstate and can be used to measure the CP violation parameter sin(2phi(1). We also report the first observation of the B0--eta(c)K(*0) mode. The results are based on an analysis of 29.1 fb(-1) of data collected by the Belle detector at KEKB.
Published: 2002

342. Study of Exclusive B decays to Charmed Baryons

Author: N. Gabyshev, H. Kichimi, K. Abe, T. Abe, I. Adachi, H. Aihara, M. Akatsu, Y. Asano, T. Aso, V. Aulchenko, T. Aushev, A. M. Bakich, Y. Ban, E. Banas, A. Bay, P. K. Behera, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, B. C. K. Casey, P. Chang, Y. Chao, K.-F. Chen, B. G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, Y. K. Choi, M. Danilov, L. Y. Dong, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, F. Fang, A. Garmash, T. Gershon, B. Golob, J. Haba, T. Hara, H. Hayashii, M. Hazumi, E. M. Heenan, T. Higuchi, L. Hinz, T. Hojo, T. Hokuue, Y. Hoshi, W.-S. Hou, H.-C. Huang, T. Igaki, Y. Igarashi, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, H. Iwasaki, Y. Iwasaki, H. K. Jang, J. H. Kang, J. S. Kang, P. Kapusta, N. Katayama, H. Kawai, Y. Kawakami, T. Kawasaki, D. W. Kim, Heejong Kim, H. J. Kim, H. O. Kim, Hyunwoo Kim, S. K. Kim, K. Kinoshita, S. Kobayashi, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, Y.-J. Kwon, J. S. Lange, G. Leder, S. H. Lee, J. Li, D. Liventsev, R.-S. Lu, J. MacNaughton, G. Majumder, F. Mandl, S. Matsumoto, T. Matsumoto, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, G. R. Moloney, T. Mori, T. Nagamine, Y. Nagasaka, T. Nakadaira, E. Nakano, M. Nakao, H. Nakazawa, J. W. Nam, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, H. Palka, C. W. Park, H. Park, K. S. Park, J.-P. Perroud, M. Peters, L. E. Piilonen, F. J. Ronga, N. Root, K. Rybicki, H. Sagawa, S. Saitoh, Y. Sakai, H. Sakamoto, M. Satapathy, A. Satpathy, O. Schneider, C. Schwanda, A. Schwartz, S. Semenov, K. Senyo, R. Seuster, M. E. Sevior, H. Shibuya, B. Shwartz, V. Sidorov, N. Soni, S. Stanič, M. Starič, A. Sugi, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, K. Suzuki, T. Takahashi, F. Takasaki, N. Tamura, J. Tanaka, M. Tanaka, G. N. Taylor, Y. Teramoto, S. Tokuda, T. Tomura, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, S. Uno, Y. Ushiroda, S. E. Vahsen, G. Varner, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, M.-Z. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, Y. Yamashita, H. Yanai, J. Yashima, Y. Yuan, Y. Yusa, C. C. Zhang, Z. P. Zhang, V. Zhilich, and D. Žontar
Subjects: Physics, Charmed baryons, Nuclear and High Energy Physics, Crystallography, High Energy Physics - Experiment (hep-ex), KEKB, Branching fraction, Electron–positron annihilation, FOS: Physical sciences, High Energy Physics - Experiment
Abstract: Using 29.1fb-1 of data accumulated at the Upsilon(4S) with the Belle detector at KEKB, we have studied the decay modes B0bar->Lambda_c+ pbar pi+pi-, B- -> Lambda_c+ pbar pi-, and B0bar ->Lambda_c+ pbar. We report branching fractions of exclusive B decays to charmed baryons with four-, three- and two-body final states, including intermediate Sigma_c++ and Sigma_c0 states. We observed B0bar -> Sigma_c(2455)++pbar pi- for the first time with a branching fraction of (2.38+0.63-0.55+-0.41+-0.62)x10-4 and observed evidence for the two-body decay B- ->Sigma_c(2455)0 pbar with a branching fraction of (0.45+0.26-0.19+-0.07+-0.12)x10-4. We also set improved upper limits for the two-body decays B0bar -> Lambda_c+ pbar and B- -> Sigma_c(2520)0 pbar., accepted for publication in Phys. Rev. D
Published: 2002

343. Measurement of the electroweak penguin process B--X(s)l+l

Author: J, Kaneko, K, Abe, T, Abe, I, Adachi, Byoung Sup, Ahn, H, Aihara, M, Akatsu, Y, Asano, T, Aso, V, Aulchenko, T, Aushev, A M, Bakich, Y, Ban, E, Banas, W, Bartel, A, Bay, P K, Behera, A, Bondar, A, Bozek, M, Bracko, J, Brodzicka, T E, Browder, B C K, Casey, P, Chang, Y, Chao, K-F, Chen, B G, Cheon, R, Chistov, Y, Choi, Y K, Choi, M, Danilov, L Y, Dong, S, Eidelman, V, Eiges, Y, Enari, C W, Everton, F, Fang, H, Fujii, C, Fukunaga, N, Gabyshev, A, Garmash, T, Gershon, R, Guo, J, Haba, F, Handa, T, Hara, Y, Harada, N C, Hastings, H, Hayashii, M, Hazumi, E M, Heenan, I, Higuchi, T, Higuchi, L, Hinz, T, Hojo, Y, Hoshi, W-S, Hou, H-C, Huang, T, Igaki, Y, Igarashi, T, Iijima, K, Inami, A, Ishikawa, H, Ishino, R, Itoh, H, Iwasaki, Y, Iwasaki, H K, Jang, J H, Kang, J S, Kang, N, Katayama, H, Kawai, Y, Kawakami, N, Kawamura, T, Kawasaki, H, Kichimi, D W, Kim, Heejong, Kim, H J, Kim, H O, Kim, Hyunwoo, Kim, S K, Kim, K, Kinoshita, S, Kobayashi, S, Korpar, P, Krizan, P, Krokovny, R, Kulasiri, S, Kumar, Y-J, Kwon, J S, Lange, G, Leder, S H, Lee, J, Li, A, Limosani, R-S, Lu, J, MacNaughton, G, Majumder, F, Mandl, D, Marlow, S, Matsumoto, T, Matsumoto, W, Mitaroff, K, Miyabayashi, Y, Miyabayashi, H, Miyake, G R, Moloney, T, Mori, T, Nagamine, Y, Nagasaka, T, Nakadaira, E, Nakano, M, Nakao, J W, Nam, K, Neichi, S, Nishida, O, Nitoh, S, Noguchi, T, Nozaki, S, Ogawa, T, Ohshima, T, Okabe, S, Okuno, S L, Olsen, Y, Onuki, W, Ostrowicz, H, Ozaki, P, Pakhlov, H, Palka, C W, Park, H, Park, K S, Park, J-P, Perroud, M, Peters, L E, Piilonen, N, Root, K, Rybicki, H, Sagawa, Y, Sakai, H, Sakamoto, M, Satapathy, A, Satpathy, O, Schneider, S, Schrenk, C, Schwanda, S, Semenov, K, Senyo, R, Seuster, H, Shibuya, B, Shwartz, V, Sidorov, J B, Singh, N, Soni, S, Stanic, K, Sumisawa, T, Sumiyoshi, K, Suzuki, S, Suzuki, S Y, Suzuki, S K, Swain, H, Tajima, T, Takahashi, F, Takasaki, K, Tamai, N, Tamura, J, Tanaka, M, Tanaka, G N, Taylor, Y, Teramoto, S, Tokuda, M, Tomoto, T, Tomura, K, Trabelsi, W, Trischuk, T, Tsuboyama, T, Tsukamoto, S, Uehara, K, Ueno, S, Uno, Y, Ushiroda, G, Varner, K E, Varvell, C C, Wang, C H, Wang, J G, Wang, M-Z, Wang, Y, Watanabe, E, Won, B D, Yabsley, Y, Yamada, A, Yamaguchi, Y, Yamashita, M, Yamauchi, H, Yanai, J, Yashima, M, Yokoyama, Y, Yuan, Y, Yusa, C C, Zhang, J, Zhang, Z P, Zhang, Y, Zheng, V, Zhilich, and D, Zontar
Abstract: We report the first measurement of the branching fraction for the inclusive decay B--X(s)l(+)l(-), where l is either an electron or a muon, and X(s) is a hadronic recoil system that contains an s quark. We analyzed a data sample of 65.4 x 10(6) B meson pairs collected with the Belle detector at the KEKB e(+)e(-) asymmetric-energy collider. We find B(B--X(s)l(+)l(-))=[6.1 +/-1.4(stat) +1.4-1.1(syst)] x 10(-6) for dilepton masses greater than 0.2 GeV/c(2).
Published: 2002

344. Observation of D+(s)K- and evidence for D+(s)pi- final states in neutral B decays

Author: P, Krokovny, K, Abe, T, Abe, I, Adachi, Byoung Sup, Ahn, H, Aihara, M, Akatsu, Y, Asano, T, Aso, V, Aulchenko, T, Aushev, A M, Bakich, Y, Ban, E, Banas, A, Bay, I, Bedny, P K, Behera, I, Bizjak, A, Bondar, A, Bozek, M, Bracko, J, Brodzicka, T E, Browder, B C K, Casey, P, Chang, Y, Chao, K-F, Chen, B G, Cheon, R, Chistov, S-K, Choi, Y, Choi, M, Danilov, L Y, Dong, A, Drutskoy, S, Eidelman, V, Eiges, Y, Enari, C W, Everton, F, Fang, C, Fukunaga, N, Gabyshev, A, Garmash, T, Gershon, B, Golob, A, Gordon, R, Guo, J, Haba, K, Hanagaki, F, Handa, Y, Harada, H, Hayashii, M, Hazumi, E M, Heenan, T, Higuchi, L, Hinz, T, Hojo, T, Hokuue, Y, Hoshi, W-S, Hou, H-C, Huang, T, Igaki, T, Iijima, K, Inami, A, Ishikawa, H, Ishino, R, Itoh, H, Iwasaki, H K, Jang, J, Kaneko, J H, Kang, J S, Kang, N, Katayama, H, Kawai, Y, Kawakami, N, Kawamura, T, Kawasaki, H, Kichimi, D W, Kim, Heejong, Kim, H J, Kim, H O, Kim, Hyunwoo, Kim, S K, Kim, K, Kinoshita, S, Kobayashi, S, Korpar, P, Krizan, R, Kulasiri, S, Kumar, A, Kuzmin, Y-J, Kwon, J S, Lange, G, Leder, S H, Lee, J, Li, A, Limosani, D, Liventsev, R-S, Lu, J, MacNaughton, G, Majumder, F, Mandl, D, Marlow, T, Matsuishi, S, Matsumoto, T, Matsumoto, W, Mitaroff, K, Miyabayashi, Y, Miyabayashi, H, Miyake, H, Miyata, G R, Moloney, T, Mori, A, Murakami, T, Nagamine, Y, Nagasaka, T, Nakadaira, E, Nakano, M, Nakao, H, Nakazawa, J W, Nam, Z, Natkaniec, K, Neichi, S, Nishida, O, Nitoh, T, Nozaki, S, Ogawa, T, Ohshima, T, Okabe, S L, Olsen, Y, Onuki, W, Ostrowicz, H, Ozaki, P, Pakhlov, C W, Park, H, Park, J-P, Perroud, M, Peters, L E, Piilonen, F J, Ronga, N, Root, K, Rybicki, H, Sagawa, S, Saitoh, Y, Sakai, H, Sakamoto, M, Satapathy, A, Satpathy, O, Schneider, C, Schwanda, S, Semenov, K, Senyo, H, Shibuya, B, Shwartz, V, Sidorov, J B, Singh, S, Stanic, M, Staric, A, Sugi, A, Sugiyama, K, Sumisawa, T, Sumiyoshi, K, Suzuki, S, Suzuki, S Y, Suzuki, S K, Swain, T, Takahashi, F, Takasaki, K, Tamai, N, Tamura, J, Tanaka, M, Tanaka, G N, Taylor, Y, Teramoto, S, Tokuda, T, Tomura, K, Trabelsi, T, Tsuboyama, T, Tsukamoto, S, Uehara, K, Ueno, Y, Unno, S, Uno, Y, Ushiroda, G, Varner, K E, Varvell, C C, Wang, C H, Wang, J G, Wang, M-Z, Wang, Y, Watanabe, E, Won, B D, Yabsley, Y, Yamada, A, Yamaguchi, Y, Yamashita, M, Yamauchi, H, Yanai, J, Yashima, Y, Yuan, Y, Yusa, C C, Zhang, J, Zhang, Z P, Zhang, Y, Zheng, V, Zhilich, and D, Zontar
Abstract: We report the first observation of a B meson decay that is not accessible by a direct spectator process. The channel B(0)--D(+)(s)K- is found in a sample of 85 x 10(6) BB; events, collected with the Belle detector at KEKB, with a branching fraction B(B(0)--D(+)(s)K-)=(4.6(+1.2)(-1.1)+/-1.3) x 10(-5). We also obtain evidence for the B0--D(+)(s)pi(-) decay with branching fraction B(B0--D(+)(s)pi(-))=(2.4(+1.0)(-0.8)+/-0.7) x 10(-5). This value may be used to extract a model-dependent value of |V(ub)|.
Published: 2002

345. Charmless Hadronic Two-Body B Meson Decays

Author: H. Kichimi, S. Saitoh, Z. Natkaniec, G. Varner, R. Guo, M. Tomoto, S. Okuno, P. Križan, T. Aso, K. Suzuki, T. E. Browder, S. C. Hsu, Alexander E. Bondar, T. Tomura, M. E. Sevior, N. Tamura, T. Takahashi, S. Suzuki, B. D. Yabsley, T. Matsumoto, A. Ishikawa, A. Bay, D. Žontar, T. Nagamine, N. Katayama, J. H. Kang, H. Kawai, D. Marlow, M. Rozanska, N. Gabyshev, B. C.K. Casey, F. Handa, H. K. Jang, Prafulla Kumar Behera, T. Mori, T. Ohshima, M. Akatsu, H. Hayashii, H. Ozaki, S. Stanič, T. Sumiyoshi, I. Bedny, A. Murakami, Z. P. Zhang, H. Sakamoto, C. W. Park, T. H. Kim, M. Starič, T. Hara, K. Inami, K. Sumisawa, A. Sugi, N. Kawamura, J. B. Singh, Andrzej Bozek, Y. J. Kwon, T. Gershon, W. S. Hou, Kai-Feng Chen, K. Kinoshita, M. Hazumi, N. C. Hastings, E. M. Heenan, D. W. Kim, S. Uehara, Y. Ushiroda, V. Aulchenko, J. Haba, S. Schrenk, M. Danilov, Y. Yamada, K. Rybicki, S. Noguchi, Y. Choi, T. Tsuboyama, H. Palka, S. Nishida, E. Nakano, H. Yanai, Y. Iwasaki, G. N. Taylor, K. Miyabayashi, M. Satapathy, Y. Nagasaka, K. Senyo, S. Semenov, Li Jingyuan, H. Shibuya, N. Soni, S. H. Lee, K. Trabelsi, R. S. Lu, S. K. Choi, H. Park, F. Mandl, Y. Kawakami, Heejong Kim, A. Garmash, S. Tokuda, T. Nakadaira, S. L. Olsen, V. Zhilich, Y. Enari, M. Bračko, C. C. Wang, A. Yamaguchi, S. Kumar, H. Sagawa, I. Higuchi, H. J. Kim, Y. Asano, J. Brodzicka, B. Shwartz, P. Chang, Y. Igarashi, S. Ogawa, Y. Sakai, Minoru Tanaka, S. Matsumoto, J. G. Wang, R. Chistov, Samo Korpar, T. Abe, T. Okabe, A. Sugiyama, T. Iijima, J. Dragic, K. E. Varvell, J. S. Lange, Byung Gu Cheon, Y. Hoshi, L. S. Peak, R. Seuster, Meng Wang, Y. Yusa, C. Fukunaga, G. Majumder, M. Peters, P. Krokovny, V. Eiges, H. C. Huang, T. Aushev, G. R. Moloney, Masashi Yokoyama, E. Won, A. M. Bakich, L. Hinz, O. Schneider, J. S. Kang, T. Tsukamoto, T. Nozaki, A. Satpathy, Y. Watanabe, Y. Teramoto, A. Gordon, Hyunwoo Kim, C. H. Wang, T. Matsuishi, M. Yamauchi, Y. K. Choi, F. Fang, J. P. Perroud, L. Y. Dong, I. Bizjak, Y. Miyabayashi, C. Schwanda, H. Miyata, J. Tanaka, L. E. Piilonen, K. Ueno, R. Itoh, H. Aihara, I. Adachi, O. Nitoh, B. Golob, S. Eidelman, M. Nakao, N. Root, Byoung Sup Ahn, Y. Ban, J. W. Nam, S. Y. Suzuki, J. MacNaughton, A. Kuzmin, T. Higuchi, Y. Chao, G. Leder, K. Abe, R. Kulasiri, Y. Onuki, W. Ostrowicz, Y. Yamashita, H. Iwasaki, T. Igaki, S. Uno, Y. Unno, Y. Yuan, and F. Takasaki
Subjects: Physics, Quantum chromodynamics, Nuclear and High Energy Physics, Particle physics, Electron–positron annihilation, Hadron, FOS: Physical sciences, Resonance, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Pion, KEKB, CP violation, B meson
Abstract: We report the results of a study of two-body B meson decays to the complete set of K pi, pi pi, and K K final states. The study is performed on a data sample of 31.7 +/- 0.3 million B B-bar events recorded on the Upsilon(4S) resonance by the Belle experiment at KEKB. We observe significant signals in all K pi final states and in the pi+ pi- and pi+ pi0 final states. We set limits on the pi0 pi0 and K K final states. A search is performed for partial-rate asymmetries between conjugate states for flavor-specific final states., Submitted to PRD
Published: 2002

346. Measurement of the B(0)-B(0) mixing parameter Deltam(d) using semileptonic B0 decays

Author: K, Hara, M, Hazumi, K, Abe, T, Abe, I, Adachi, Byoung Sup, Ahn, H, Aihara, M, Akatsu, Y, Asano, T, Aso, V, Aulchenko, T, Aushev, A M, Bakich, Y, Ban, A, Bay, I, Bedny, P K, Behera, I, Bizjak, A, Bondar, A, Bozek, M, Bracko, J, Brodzicka, T E, Browder, B C K, Casey, P, Chang, Y, Chao, K-F, Chen, B G, Cheon, R, Chistov, S-K, Choi, Y, Choi, Y K, Choi, M, Danilov, L Y, Dong, J, Dragic, S, Eidelman, V, Eiges, Y, Enari, C W, Everton, F, Fang, C, Fukunaga, N, Gabyshev, A, Garmash, T, Gershon, B, Golob, R, Guo, J, Haba, K, Hanagaki, F, Handa, T, Hara, N C, Hastings, H, Hayashii, E M, Heenan, I, Higuchi, T, Higuchi, L, Hinz, Y, Hoshi, W-S, Hou, Y B, Hsiung, S-C, Hsu, H-C, Huang, T, Igaki, Y, Igarashi, T, Iijima, K, Inami, A, Ishikawa, R, Itoh, H, Iwasaki, Y, Iwasaki, H K, Jang, H, Kakuno, J H, Kang, J S, Kang, N, Katayama, H, Kawai, Y, Kawakami, N, Kawamura, H, Kichimi, D W, Kim, Heejong, Kim, H J, Kim, Hyunwoo, Kim, T H, Kim, K, Kinoshita, S, Korpar, P, Krizan, P, Krokovny, R, Kulasiri, S, Kumar, A, Kuzmin, Y-J, Kwon, J S, Lange, G, Leder, S H, Lee, J, Li, R-S, Lu, J, MacNaughton, G, Majumder, F, Mandl, T, Matsuishi, S, Matsumoto, T, Matsumoto, K, Miyabayashi, Y, Miyabayashi, H, Miyata, G R, Moloney, T, Mori, T, Nagamine, Y, Nagasaka, T, Nakadaira, E, Nakano, M, Nakao, J W, Nam, Z, Natkaniec, S, Nishida, O, Nitoh, S, Noguchi, T, Nozaki, S, Ogawa, T, Ohshima, T, Okabe, S, Okuno, S L, Olsen, Y, Onuki, W, Ostrowicz, H, Ozaki, H, Palka, C W, Park, H, Park, L S, Peak, J-P, Perroud, M, Peters, L E, Piilonen, N, Root, M, Rozanska, K, Rybicki, H, Sagawa, S, Saitoh, Y, Sakai, H, Sakamoto, M, Satapathy, A, Satpathy, O, Schneider, S, Schrenk, C, Schwanda, S, Semenov, K, Senyo, R, Seuster, M E, Sevior, H, Shibuya, B, Shwartz, J B, Singh, N, Soni, S, Stanic, M, Staric, A, Sugi, A, Sugiyama, K, Sumisawa, T, Sumiyoshi, K, Suzuki, S, Suzuki, S Y, Suzuki, T, Takahashi, F, Takasaki, N, Tamura, J, Tanaka, M, Tanaka, G N, Taylor, Y, Teramoto, S, Tokuda, M, Tomoto, T, Tomura, K, Trabelsi, T, Tsuboyama, T, Tsukamoto, S, Uehara, K, Ueno, Y, Unno, S, Uno, Y, Ushiroda, G, Varner, K E, Varvell, C C, Wang, C H, Wang, J G, Wang, M-Z, Wang, Y, Watanabe, E, Won, B D, Yabsley, Y, Yamada, A, Yamaguchi, Y, Yamashita, M, Yamauchi, H, Yanai, M, Yokoyama, Y, Yuan, Y, Yusa, Z P, Zhang, V, Zhilich, and D, Zontar
Abstract: We present a measurement of the B0-Bmacr;(0) mixing parameter Deltam(d) using neutral B meson pairs in a 29.1 fb(-1) data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We exclusively reconstruct one neutral B meson in the semileptonic B0--D(*-)l(+)nu decay mode and identify the flavor of the accompanying B meson from its decay products. From the distribution of the time intervals between the two flavor-tagged B meson decay points, we obtain Deltam(d)=(0.494+/-0.012+/-0.015) ps(-1), where the first error is statistical and the second error is systematic.
Published: 2002

347. Observation of B+/- --omegaK+/- decay

Author: R-S, Lu, K, Abe, N, Abe, R, Abe, T, Abe, I, Adachi, H, Aihara, Y, Asano, T, Aso, V, Aulchenko, T, Aushev, A M, Bakich, Y, Ban, E, Banas, I, Bedny, P K, Behera, I, Bizjak, A, Bondar, A, Bozek, M, Bracko, T E, Browder, B C K, Casey, M-C, Chang, P, Chang, Y, Chao, K-F, Chen, B G, Cheon, R, Chistov, S-K, Choi, Y, Choi, Y K, Choi, M, Danilov, L Y, Dong, A, Drutskoy, S, Eidelman, V, Eiges, C W, Everton, C, Fukunaga, N, Gabyshev, T, Gershon, B, Golob, A, Gordon, R, Guo, J, Haba, T, Hara, Y, Harada, H, Hayashii, M, Hazumi, E M, Heenan, T, Higuchi, L, Hinz, T, Hokuue, Y, Hoshi, W-S, Hou, S-C, Hsu, H-C, Huang, T, Igaki, Y, Igarashi, T, Iijima, K, Inami, A, Ishikawa, R, Itoh, H, Iwasaki, Y, Iwasaki, H K, Jang, J H, Kang, P, Kapusta, S U, Kataoka, N, Katayama, H, Kawai, Y, Kawakami, N, Kawamura, T, Kawasaki, H, Kichimi, D W, Kim, Heejong, Kim, H J, Kim, H O, Kim, Hyunwoo, Kim, S K, Kim, K, Kinoshita, P, Krokovny, R, Kulasiri, S, Kumar, A, Kuzmin, Y-J, Kwon, G, Leder, S H, Lee, J, Li, D, Liventsev, J, MacNaughton, G, Majumder, F, Mandl, T, Matsuishi, S, Matsumoto, T, Matsumoto, W, Mitaroff, K, Miyabayashi, Y, Miyabayashi, H, Miyake, H, Miyata, G R, Moloney, T, Mori, A, Murakami, T, Nagamine, Y, Nagasaka, T, Nakadaira, E, Nakano, M, Nakao, J W, Nam, Z, Natkaniec, K, Neichi, S, Nishida, O, Nitoh, S, Noguchi, T, Nozaki, S, Ogawa, F, Ohno, T, Ohshima, T, Okabe, S, Okuno, S L, Olsen, W, Ostrowicz, H, Ozaki, H, Palka, C W, Park, H, Park, L S, Peak, J-P, Perroud, M, Peters, L E, Piilonen, N, Root, K, Rybicki, H, Sagawa, S, Saitoh, Y, Sakai, M, Satapathy, A, Satpathy, O, Schneider, S, Schrenk, S, Semenov, K, Senyo, R, Seuster, M E, Sevior, H, Shibuya, V, Sidorov, J B, Singh, N, Soni, S, Stanic, M, Staric, A, Sugi, A, Sugiyama, K, Sumisawa, T, Sumiyoshi, K, Suzuki, S, Suzuki, T, Takahashi, F, Takasaki, K, Tamai, N, Tamura, J, Tanaka, M, Tanaka, G N, Taylor, Y, Teramoto, S, Tokuda, M, Tomoto, T, Tomura, S N, Tovey, K, Trabelsi, T, Tsuboyama, T, Tsukamoto, S, Uehara, K, Ueno, S, Uno, Y, Ushiroda, G, Varner, K E, Varvell, C C, Wang, C H, Wang, J G, Wang, M-Z, Wang, Y, Watanabe, E, Won, B D, Yabsley, Y, Yamada, Y, Yamashita, M, Yamauchi, P, Yeh, Y, Yuan, J, Zhang, Z P, Zhang, Y, Zheng, and D, Zontar
Abstract: We report the first observation of the charmless two-body mode B+/---omegaK+/- decay, and a new measurement of the branching fraction for the B+/---omegapi(+/-) decay. The measured branching fractions are B(B+/---omegaK+/-)=(9.2(+2.6)(-2.3)+/-1.0)x10(-6) and B(B+/---omegapi(+/-))=(4.2(+2.0)(-1.8)+/-0.5)x10(-6). We also measure the partial rate asymmetry of B+/---omegaK+/- decays and obtain A(CP)=-0.21+/-0.28+/-0.03. The results are based on a data sample of 29.4 fb(-1) collected on the Upsilon(4S) resonance by the Belle detector at the KEKB e(+)e(-) collider.
Published: 2002

348. Studies of the decay B+/- --D(CP)K+

Author: K, Abe, N, Abe, R, Abe, T, Abe, Byoung Sup, Ahn, H, Aihara, M, Akatsu, Y, Asano, T, Aso, V, Aulchenko, T, Aushev, A M, Bakich, Y, Ban, P K, Behera, I, Bizjak, A, Bondar, A, Bozek, M, Bracko, T E, Browder, B C K, Casey, M-C, Chang, P, Chang, Y, Chao, B G, Cheon, R, Chistov, Y, Choi, Y K, Choi, M, Danilov, L Y, Dong, A, Drutskoy, S, Eidelman, V, Eiges, Y, Enari, F, Fang, H, Fujii, C, Fukunaga, N, Gabyshev, A, Garmash, T, Gershon, B, Golob, A, Gordon, R, Guo, J, Haba, T, Hara, Y, Harada, H, Hayashii, M, Hazumi, E M, Heenan, I, Higuchi, T, Higuchi, L, Hinz, T, Hokuue, Y, Hoshi, S R, Hou, W-S, Hou, S-C, Hsu, H-C, Huang, T, Igaki, Y, Igarashi, T, Iijima, K, Inami, A, Ishikawa, H, Ishino, R, Itoh, H, Iwasaki, Y, Iwasaki, H K, Jang, J H, Kang, J S, Kang, N, Katayama, Y, Kawakami, N, Kawamura, T, Kawasaki, H, Kichimi, D W, Kim, Heejong, Kim, H J, Kim, H O, Kim, Hyunwoo, Kim, S K, Kim, T H, Kim, K, Kinoshita, S, Korpar, P, Krizan, P, Krokovny, R, Kulasiri, S, Kumar, A, Kuzmin, Y-J, Kwon, J S, Lange, G, Leder, S H, Lee, J, Li, A, Limosani, D, Liventsev, R-S, Lu, J, MacNaughton, G, Majumder, F, Mandl, D, Marlow, T, Matsuishi, S, Matsumoto, T, Matsumoto, W, Mitaroff, K, Miyabayashi, Y, Miyabayashi, H, Miyake, H, Miyata, G R, Moloney, T, Mori, A, Murakami, T, Nagamine, Y, Nagasaka, T, Nakadaira, E, Nakano, M, Nakao, J W, Nam, Z, Natkaniec, K, Neichi, S, Nishida, O, Nitoh, S, Noguchi, T, Nozaki, S, Ogawa, T, Ohshima, T, Okabe, S, Okuno, S L, Olsen, Y, Onuki, W, Ostrowicz, H, Ozaki, P, Pakhlov, H, Palka, C W, Park, H, Park, L S, Peak, J-P, Perroud, M, Peters, L E, Piilonen, J L, Rodriguez, F J, Ronga, N, Root, M, Rozanska, K, Rybicki, H, Sagawa, S, Saitoh, Y, Sakai, M, Satapathy, A, Satpathy, O, Schneider, S, Schrenk, C, Schwanda, S, Semenov, K, Senyo, R, Seuster, M E, Sevior, H, Shibuya, B, Shwartz, V, Sidorov, J B, Singh, S, Stanic, M, Staric, A, Sugi, A, Sugiyama, K, Sumisawa, T, Sumiyoshi, K, Suzuki, S, Suzuki, S Y, Suzuki, S K, Swain, T, Takahashi, F, Takasaki, K, Tamai, N, Tamura, J, Tanaka, M, Tanaka, G N, Taylor, Y, Teramoto, S, Tokuda, S N, Tovey, K, Trabelsi, T, Tsuboyama, T, Tsukamoto, S, Uehara, K, Ueno, Y, Unno, S, Uno, Y, Ushiroda, G, Varner, K E, Varvell, C C, Wang, C H, Wang, J G, Wang, M-Z, Wang, Y, Watanabe, E, Won, B D, Yabsley, Y, Yamada, A, Yamaguchi, Y, Yamashita, M, Yamauchi, H, Yanai, P, Yeh, Y, Yuan, Y, Yusa, J, Zhang, Z P, Zhang, Y, Zheng, V, Zhilich, and D, Zontar
Abstract: We report studies of the Cabibbo-suppressed decay B+/---D(CP)K+/-, where D(CP) denotes CP eigenstates of the D0-D0; system. The analysis is based on a 29.1 fb(-1) sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric e(+)e(-) storage ring. We measure ratios of branching fractions, relative to Cabibbo-favored B+/---D(CP)pi(+/-), of B(B---D1K-)/B(B---D1pi(-))=0.125+/-0.036+/-0.010 and B(B---D2K-)/B(B---D2pi(-))=0.119+/-0.028+/-0.006; the index 1 (2) denotes the CP=+1 (-1) eigenstate. We also extract the partial rate asymmetries for B+/---D(CP)K+/-, finding A(1)=0.29+/-0.26+/-0.05 and A(2)=-0.22+/-0.24+/-0.04.
Published: 2002

349. Observation of the decay B(0)--D(+/-)D(*-/+)

Author: Heejong Kim, J. Kaneko, J. Tanaka, Kazuo Abe, B. D. Yabsley, J. S. Kang, Y. Asano, P. Kapusta, S. Tokuda, Z. Natkaniec, P. Krokovny, Y. Watanabe, S.N. Tovey, H. Kichimi, J. B. Singh, S. L. Olsen, H. Ozaki, S. K. Choi, K. Neichi, T. Tsuboyama, S. H. Lee, Y. Ushiroda, R. Guo, N. Gabyshev, You-Jin Yuan, N. Tamura, T. Aushev, Takuya Higuchi, M. Danilov, S. Okuno, W. Ostrowicz, P. Chang, T. J. Gershon, T. Iijima, T. Nakadaira, Jie Zhang, Y. Teramoto, F. Handa, T. Igaki, K. Senyo, Elzbieta Banas, K. Ueno, S. Stanič, V.A. Sidorov, S. R. Hou, E. Nakano, T. E. Browder, T. Hara, T. Tsukamoto, Y. J. Kwon, Hiroaki Aihara, N.I. Root, K. Tamai, H. O. Kim, M. E. Sevior, A. Yamaguchi, J. W. Nam, Hyun Woo Kim, C. W. Park, M. Iwamoto, D. Liventsev, S. Uno, C. Schwanda, Y. Iwasaki, T. Hojo, S. Nishida, Y. Kawakami, D. Žontar, S. Matsumoto, R. Itoh, Gobinda Majumder, Hiroyuki Iwasaki, M. Yamauchi, Y. Choi, R. Abe, M. Satapathy, J. Yashima, G. S. Varner, E. M. Heenan, P. Pakhlov, Sadaharu Uehara, A. Satpathy, T. Hokuue, T. Nozaki, J. P. Perroud, Masashi Yokoyama, G. R. Moloney, V. M. Aulchenko, H. Park, Y. Ban, A. Bozek, C. H. Wang, Y. Yusa, Y. Sakai, A. Drutskoy, D. W. Kim, T. Tomura, M. Nakao, A. Garmash, K. Trabelsi, H. Kawai, Byung Gu Cheon, Y. Yamashita, Chikara Fukunaga, Yasushi Nagasaka, I. Bedny, J. Li, C. C. Wang, S. Schrenk, T. Nagamine, H. C. Huang, Ascelin Gordon, L. Y. Dong, F. Ohno, Y. Hoshi, E. Won, H. Sagawa, B. Golob, J. S. Lange, H. Shibuya, V. Eiges, L. E. Piilonen, R. Kulasiri, T. Kawasaki, H. Miyata, R. Chistov, A. Ishikawa, A. Bay, F. Takasaki, Alexander Bondar, F. J. Ronga, Y. Yamada, A. Sugiyama, Semen Eidelman, T. Sumiyoshi, Takayoshi Ohshima, K. E. Varvell, A. M. Bakich, Y. Chao, N. Katayama, S. E. Vahsen, A. Sugi, H. Fujii, S. Ogawa, V.N. Zhilich, O. Schneider, S. Semenov, L. S. Peak, S. K. Swain, K. Rybicki, K. Miyabayashi, S. Korpar, Jolanta Brodzicka, M. H. Tanaka, S. K. Kim, Yuji Enari, M. Starič, Z. P. Zhang, T. Matsumoto, O. Nitoh, K. Kinoshita, Y. Unno, Hyunyong Kim, S. Saitoh, G. N. Taylor, H. Hayashii, J. MacNaughton, T. Mori, H. Yanai, W. S. Hou, T. Abe, S. Y. Suzuki, K. Sumisawa, L. Hinz, A. Kuzmin, Masashi Hazumi, J. H. Kang, H. Miyake, Prafulla Kumar Behera, T.H. Kim, and M. Akatsu
Subjects: Physics, KEKB, Pion, Meson, Analytical chemistry, General Physics and Astronomy, Resonance, Reconstruction method, High Energy Physics - Experiment
Abstract: We report the first observation of the decay B^0->D+-D*-+ with the Belle detector at the KEKB e^+e^- collider operated at the Upsilon(4S) resonance. The sum of branching fractions B(B^0->D+D*-)+B(B^0->D-D*+) is measured to be (1.17+-0.26+0.22-0.25)x10^-3 using the full reconstruction method where both charmed mesons from B^0 decays are reconstructed. A consistent value ((1.48+-0.38+0.28-0.31)x10^-3) is obtained using a partial reconstruction technique that only uses the slow pion from the D*- ->bar D^0pi- decay and a fully reconstructed D+ to reconstruct the B^0., Comment: 10 pages, 3 figures
Published: 2002

350. Measurement of the Oscillation Frequency for B0-Bobar Mixing using Hadronic B0 Decays

Author: T. Tomura, K. Abe, N. Abe, R. Abe, T. Abe, I. Adachi, H. Aihara, Y. Asano, T. Aso, V. Aulchenko, T. Aushev, A.M. Bakich, Y. Ban, E. Banas, I. Bedny, P.K. Behera, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, T.E. Browder, B.C.K. Casey, M.-C. Chang, P. Chang, Y. Chao, K.-F. Chen, B.G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, Y.K. Choi, M. Danilov, L.Y. Dong, A. Drutskoy, S. Eidelman, V. Eiges, C. Fukunaga, N. Gabyshev, T. Gershon, B. Golob, A. Gordon, R. Guo, J. Haba, K. Hanagaki, K. Hara, T. Hara, Y. Harada, N.C. Hastings, H. Hayashii, M. Hazumi, E.M. Heenan, T. Higuchi, L. Hinz, T. Hokuue, Y. Hoshi, W.-S. Hou, S.-C. Hsu, H.-C. Huang, T. Igaki, Y. Igarashi, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, H. Iwasaki, Y. Iwasaki, H.K. Jang, H. Kakuno, J.H. Kang, P. Kapusta, S.U. Kataoka, N. Katayama, H. Kawai, Y. Kawakami, T. Kawasaki, H. Kichimi, D.W. Kim, Heejong Kim, H.J. Kim, H.O. Kim, Hyunwoo Kim, S.K. Kim, T.H. Kim, K. Kinoshita, P. Krokovny, R. Kulasiri, S. Kumar, A. Kuzmin, Y.-J. Kwon, J.S. Lange, G. Leder, S.H. Lee, J. Li, D. Liventsev, R.-S. Lu, J. MacNaughton, G. Majumder, F. Mandl, T. Matsuishi, S. Matsumoto, T. Matsumoto, W. Mitaroff, K. Miyabayashi, Y. Miyabayashi, H. Miyake, H. Miyata, G.R. Moloney, T. Mori, T. Nagamine, Y. Nagasaka, T. Nakadaira, E. Nakano, M. Nakao, J.W. Nam, Z. Natkaniec, K. Neichi, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, F. Ohno, T. Ohshima, T. Okabe, S. Okuno, S.L. Olsen, W. Ostrowicz, H. Ozaki, H. Palka, C.W. Park, H. Park, L.S. Peak, J.-P. Perroud, M. Peters, L.E. Piilonen, F.J. Ronga, N. Root, K. Rybicki, H. Sagawa, S. Saitoh, Y. Sakai, M. Satapathy, A. Satpathy, O. Schneider, S. Schrenk, S. Semenov, K. Senyo, R. Seuster, M.E. Sevior, H. Shibuya, B. Shwartz, V. Sidorov, J.B. Singh, N. Soni, S. Stanič, M. Starič, A. Sugi, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, K. Suzuki, S. Suzuki, S.Y. Suzuki, H. Tajima, T. Takahashi, F. Takasaki, K. Tamai, N. Tamura, J. Tanaka, M. Tanaka, G.N. Taylor, Y. Teramoto, S. Tokuda, M. Tomoto, S.N. Tovey, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, S. Uno, Y. Ushiroda, G. Varner, K.E. Varvell, C.C. Wang, C.H. Wang, J.G. Wang, M.-Z. Wang, Y. Watanabe, E. Won, B.D. Yabsley, Y. Yamada, Y. Yamashita, M. Yamauchi, P. Yeh, M. Yokoyama, Y. Yuan, J. Zhang, Z.P. Zhang, Y. Zheng, and D. Žontar
Subjects: Hadronic decay, Physics, Nuclear and High Energy Physics, Particle physics, Oscillation, Detector, Hadron, High Energy Physics::Phenomenology, FOS: Physical sciences, High Energy Physics - Experiment, Decay time, High Energy Physics - Experiment (hep-ex), KEKB, High Energy Physics::Experiment, Event (particle physics), Mixing (physics)
Abstract: The oscillation frequency of B0-B0bar mixing (Delta-m_d) has been measured using 29.1 fb^{-1} of datacollected with the Belle detector at KEKB. This measurement is made through the distributions of the proper decay time difference of B pairs in events tagged as same- and opposite-flavor decays. In each event, one $B$ is fully reconstructed in a flavor-specific hadronic decay mode, while the flavor of the other is extracted through a likelihood calculated from the b-flavor information carried in its final decay products. We obtain Delta-m_d = (0.528 +- 0.017 +- 0.011) ps^{-1}, where the first error is statistical and the second error is systematic., Comment: 15 pages, 3 figures, submitted to Phys. Lett. B
Published: 2002
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