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Start Over Author "A.L. Sibidanov" Journal physical review letters
18 results on '"A.L. Sibidanov"'

1. Search for B−→μ−ν¯μ Decays at the Belle Experiment

Author

V. Zhukova, G. Inguglia, K. Sumisawa, P. Chang, S. Nishida, E. L. Barberio, D. Liventsev, Elisa Guido, Vikas Bansal, E. Nakano, V.E. Shebalin, Vladimir Zhulanov, Y. Jin, G. Schnell, T. Iijima, C. Van Hulse, Frank Simon, Y. Choi, K. J. Nath, S. Sandilya, Liangbin Li, J. Libby, M. E. Sevior, I. S. Lee, P. Goldenzweig, M. Starič, M. Lubej, K. Hayasaka, C. H. Li, U. Tamponi, T. Kuhr, Kevin Varvell, C. L. Hsu, M. Uchida, A. M. Bakich, Dipanwita Dutta, A. Rostomyan, A. B. Kaliyar, S. Al Said, Y. Iwasaki, Y. J. Kwon, R. Ayad, Y. Seino, O. Schneider, Andrey Sokolov, H. K. Moon, Seema Bahinipati, J. S. Lange, M. T. Hedges, Shoichi Watanuki, Z. Drásal, V. Chekelian, T. Mori, H. Aihara, D. Greenwald, A. Kuzmin, M. Nayak, Soumen Paul, S. Okuno, G. S. Varner, Yongsun Kim, A. Zupanc, C. H. Wang, S. Uno, C. Schwanda, T. Luo, S. Ogawa, James E. Fast, I. Jaegle, N. K. Nisar, J. Haba, N. Gabyshev, D. Červenkov, D. Y. Kim, Peter Kodys, R. Itoh, W. W. Jacobs, M. Merola, V. Gaur, A.L. Sibidanov, W. S. Hou, P. Pakhlov, S. Eidelman, Z. P. Zhang, B. Pal, Tara Nanut, K. K. Joo, Y. Guan, T. Uglov, B. G. Fulsom, Eberhard Widmann, K. Tanida, K. Senyo, J. Stypula, V. Vorobyev, Sadaharu Uehara, D. M. Asner, S. Di Carlo, E. Solovieva, G. Pakhlova, M. Watanabe, T. E. Browder, R. Mussa, C. Z. Yuan, Z. Natkaniec, M. Salehi, H. B. Jeon, G. B. Mohanty, A. Ishikawa, N. Dash, Y. Yamashita, Iki Adachi, G. Karyan, M. Nakao, H. Park, C. W. Park, A. Bozek, P. Križan, H. Ye, Jyoti Prakash Biswal, L. E. Piilonen, M. Rozanska, P. L. Wang, Y. Yusa, V.N. Zhilich, Meng Wang, E. Won, K. Chilikin, B. Bhuyan, J. B. Kim, Yuki Sato, T. Julius, K. Miyabayashi, I. Badhrees, R. Pestotnik, R. Kulasiri, C. Kiesling, V. Savinov, M. Sumihama, F. Tenchini, Yoshinobu Unno, T. Sumiyoshi, M. Takizawa, H. Ono, M. Bračko, L. Li Gioi, R. Mizuk, Martin Ritter, John Yelton, M. Masuda, A. Garmash, C. S. Park, S. Hirose, A. Chen, Z. Doležal, S. K. Choi, K. Trabelsi, J. Kahn, C. P. Shen, V. Babu, T. Aushev, T. Ferber, M. Niiyama, T. Matsuda, K. Inami, T. A. Shibata, H. Miyata, Prafulla Kumar Behera, J. F. Strube, Y. Sakai, H. Hayashii, M. Iwasaki, B. G. Cheon, S. H. Kim, P. Krokovny, K. Kinoshita, T. Czank, Rakesh Kumar, K. H. Kang, K. Cho, S. Korpar, D. Epifanov, D. Kotchetkov, J. G. Shiu, T. Kawasaki, T. K. Pedlar, Phillip Urquijo, and D. Cinabro

Subjects
Physics, Particle physics, Muon, Missing energy, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, General Physics and Astronomy, 01 natural sciences, Belle experiment, KEKB, 0103 physical sciences, High Energy Physics::Experiment, Neutrino, 010306 general physics, Bar (unit)
Abstract

We report the results of a search for the rare, purely leptonic decay B- -> mu(-)(nu) over bar (mu) performed with a 711 fb(-1) data sample that contains 772 x 10(6) B (B) over bar pairs, collected near the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The signal events are selected based on the presence of a high momentum muon and the topology of the rest of the event showing properties of a generic B-meson decay, as well as the missing energy and momentum being consistent with the hypothesis of a neutrino from the signal decay. We find a 2.4 standard deviation excess above background including systematic uncertainties, which corresponds to a branching fraction of B(B- -> mu(-)(nu) over bar (mu)) = (6.46 +/- 2.22 +/- 1.60) x 10(-7) or a frequentist 90% confidence level interval on the B- -> mu(-)(nu) over bar (mu) branching fraction of [2.9, 10.7] x 10(-7).

Published
2018

2. First Observation of the Hadronic Transitionϒ(4S)→ηhb(1P)and New Measurement of thehb(1P)andηb(1S)Parameters

Author

K. T. Kim, R. Gillard, S. K. Choi, A.E. Bondar, Kiyoshi Tanida, Z. Doležal, X. L. Wang, G. Schnell, T. Iijima, E. Nakano, C. Van Hulse, A. Zupanc, B. Pal, X. H. He, A. Drutskoy, Byung Gu Cheon, J. Stypula, K. Senyo, Z. Drásal, K. Trabelsi, C. Schwanda, Y. Watanabe, C. P. Shen, M. T. Hedges, T. Aushev, S. Uno, T. Ferber, G. Bonvicini, Jyoti Prakash Biswal, C. Oswald, Mikhail Danilov, M. Shapkin, A. Vinokurova, M. Uchida, E. L. Barberio, A. Abdesselam, V.E. Shebalin, V. Chobanova, T. A. Shibata, H. Miyata, S. H. Kim, P. Krokovny, V. Gaur, E. Kato, S.I. Eidelman, K. Cho, B. Golob, Marko Petrič, A.L. Sibidanov, K. Hayasaka, G. S. Varner, J. S. Lange, R. Pestotnik, B. Bhuyan, H. J. Kim, V.N. Zhilich, R. Mussa, Yuki Sato, K. Arinstein, T. E. Browder, D. Matvienko, T. K. Pedlar, G. B. Mohanty, A. Moll, W. S. Hou, D. Getzkow, I. Jaegle, G. Pakhlova, R. Mizuk, K. Miyabayashi, I. Badhrees, A. Rostomyan, Z. P. Zhang, R. Ayad, K. M. Williams, D. M. Asner, D. Joffe, A. Ishikawa, A. Chen, M. Nakao, V. Savinov, D. Semmler, S. Korpar, M. N. Wagner, B. G. Fulsom, P. Križan, A. Kuzmin, M. Z. Wang, K. Kinoshita, U. Tamponi, H. Farhat, M. Starič, D. Y. Kim, Y. Choi, T. Kumita, L. Pesántez, J. G. Shiu, T. Sanuki, L. E. Piilonen, S. Ogawa, Peter Kodys, P. Katrenko, N. K. Nisar, L. Santelj, Sunmin Ryu, E. Won, S. L. Olsen, Philip Lewis, Phillip Urquijo, M. Ritter, W. Ostrowicz, H. Park, A. Bozek, Y. Sakai, Y. S. Sohn, Y. M. Goh, A. Garmash, S. Yashchenko, T. Mori, H. Aihara, P. Vanhoefer, T. Julius, O. Schneider, H. Hayashii, Andrey Sokolov, M. Steder, C. Kiesling, J. Yamaoka, M. Bračko, James E. Fast, K. Inami, Tara Nanut, A. M. Bakich, Z. Natkaniec, T. Uglov, H. Atmacan, N. Gabyshev, D. Červenkov, Y. Unno, V. Bhardwaj, B.A. Shwartz, Vladimir Zhulanov, M. E. Sevior, A. Vossen, J. Haba, Frank Simon, H. Kichimi, M. Nayak, S. Sandilya, S. Nishida, P.A. Lukin, D. Cinabro, Jung-Hyun Kim, D. A. Epifanov, S. Okuno, E. Ribežl, Y. Teramoto, and J. Libby

Subjects
Physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, Analytical chemistry, General Physics and Astronomy, 01 natural sciences, Belle experiment, KEKB, 0103 physical sciences, Heavy quark effective theory, 010306 general physics, Hyperfine structure
Abstract

Using a sample of 771.6×10(6) ϒϒ(4S) decays collected by the Belle experiment at the KEKB e(+)e(-) collider, we observe, for the first time, the transition ϒ(4S)→ηh(b)(1P) with the branching fraction B[ϒ(4S)→ηh(b)(1P)]=(2.18±0.11±0.18)×10(-3) and we measure the h(b)(1P) mass M(h(b)(1P))=(9899.3±0.4±1.0) MeV/c(2), corresponding to the hyperfine (HF) splitting ΔM(HF)(1P)=(0.6±0.4±1.0) MeV/c(2). Using the transition h(b)(1P)→γη(b)(1S), we measure the η(b)(1S) mass M(η(b)(1S))=(9400.7±1.7±1.6) MeV/c(2), corresponding to ΔM(HF)(1S)=(59.6±1.7±1.6) MeV/c(2), the η(b)(1S) width Γ(η(b)(1S))=(8(-5)(+6)±5) MeV/c(2) and the branching fraction B[h(b)(1P)→γη(b)(1S)]=(56±8±4)%.

Published
2015

3. Measurement of the DirectCPAsymmetry inB¯→Xs+dγDecays with a Lepton Tag

Author

T. Sumiyoshi, Z. Natkaniec, B. R. Ko, N. Gabyshev, C. Kiesling, J. Hasenbusch, G. Schnell, Y. Sakai, G. Varner, D. Cinabro, V.E. Shebalin, B. Bhuyan, Y. Usov, G. Pakhlova, A. Drutskoy, Z. DoleŽal, J. E. Fast, V.M. Aulchenko, X. H. He, Yuki Sato, M. Uchida, S. Al Said, Y. Choi, A. M. Bakich, N. Taniguchi, S. Yashchenko, B.A. Shwartz, A. Bobrov, A. Garmash, Tsuyoshi Horiguchi, Jung-Hyun Kim, E. L. Barberio, D. Y. Kim, K. Trabelsi, V. Savinov, C. P. Shen, Y. J. Kwon, T. Ferber, R. Itoh, K. T. Kim, Peter Kodys, K. Senyo, T. Julius, A. Moll, R. Gillard, Y. Watanabe, K. Inami, H. Miyata, V. Chobanova, S. Sandilya, P. Krokovny, Hiroaki Aihara, Yongsun Kim, A. Ishikawa, C. Schwanda, O. Schneider, S. Korpar, T. Kuhr, Y. S. Sohn, D. Liventsev, A. Abdesselam, Kyung-Suk Cho, O. Seon, M. Z. Wang, U. Tamponi, E. Kato, F. Simon, D. Getzkow, T. Aushev, Jochen Dingfelder, A. Heller, A. Rostomyan, V. Chekelian, V. Bhardwaj, Byung Gu Cheon, R. Chistov, A.E. Bondar, P. Wang, Y. Iwasaki, P. Pakhlov, J. Yamaoka, M. Rozanska, G. B. Mohanty, K. Adamczyk, L. Pesántez, M. N. Wagner, T. E. Browder, J. Dalseno, H. Farhat, Phillip Urquijo, A. Zupanc, M. Nakao, T. Sanuki, Vladimir Zhulanov, M. E. Sevior, I. S. Lee, R. Mizuk, H. Park, Z. P. Zhang, M. Ritter, L. Li Gioi, M. J. Kim, G. Tatishvili, B. Kronenbitter, A. Bozek, S. L. Olsen, M. Starič, D. Joffe, J. B. Kim, D. M. Asner, Vikas Bansal, T. Kumita, T. A. Shibata, H. Hayashii, M. Petrič, C. Ng, K. Arinstein, M. Bračko, C. Oswald, Yang Li, T. Kawasaki, N. K. Nisar, L. Santelj, A.S. Kuzmin, C. Van Hulse, Yoshinobu Unno, M. Steder, T. Nanut, J. Haba, Y. M. Goh, J. Libby, I. Adachi, E. Won, L. E. Piilonen, J. G. Shiu, E. Solovieva, D. Matvienko, C. H. Wang, D. Dutta, S. Okuno, E. Ribežl, C. W. Park, P. Križan, P. Vanhoefer, A. J. Schwartz, W. S. Hou, Andrey Sokolov, T. Uglov, A.L. Sibidanov, V. Vorobyev, V.N. Zhilich, Bingran Wang, V. Gaur, B. Golob, I. Jaegle, K. Miyabayashi, H. K. Moon, M. Nayak, S. Nishida, J. S. Lange, S. Ganguly, E. Nakano, Y. Yook, Semen Eidelman, S. Uno, G. Bonvicini, A. Vinokurova, S. H. Kim, K. H. Kang, D. Červenkov, P. Lukin, R. Ayad, T. K. Pedlar, K. M. Williams, A. Chen, K. Chilikin, R. Pestotnik, Z. Drásal, Y. Teramoto, M. Huschle, Toru Iijima, Seema Bahinipati, O. Frost, and S. Ogawa

Subjects
Physics, Particle physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Electron–positron annihilation, media_common.quotation_subject, Gamma ray, General Physics and Astronomy, Resonance, Photon energy, 01 natural sciences, Asymmetry, Nuclear physics, KEKB, 0103 physical sciences, CP violation, High Energy Physics::Experiment, 010306 general physics, Lepton, media_common
Abstract

We report the measurement of the direct CP asymmetry in the radiative (B) over bar -> Xs+d gamma decay using a data sample of (772 +/- 11) x 10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The CP asymmetry is measured as a function of the photon energy threshold. For E-gamma* >= 2.1 GeV, where E-gamma* is the photon energy in the center-of-mass frame, we obtain A(CP) ((B) over bar -> Xs+d gamma) = (2.2 +/- 3.9 +/- 0.9)%, consistent with the standard model prediction.

Published
2015

4. Observation ofe+e−→π+π−π0χbJand Search forXb→ωϒ(1S)ats=10.867 GeV

Author

A. Garmash, S. E. Vahsen, S. Uno, G. Bonvicini, A. Vinokurova, D. Cinabro, Z. P. Zhang, P. Krokovny, K. Cho, Y. Iwasaki, Y. J. Kwon, B. R. Ko, T. K. Pedlar, A. Moll, D. Semmler, M. Steder, R. Mussa, S. Uehara, P. Chang, M. Watanabe, B.A. Shwartz, O. Schneider, H. Hayashii, A. Drutskoy, A. Zupanc, S. Nishida, A. Ishikawa, A.S. Kuzmin, M. Nakao, T. A. Shibata, H. Miyata, G. Schnell, T. Iijima, J. Libby, O. Grzymkowska, C. H. Wang, P. Križan, K. Trabelsi, A. M. Bakich, S.I. Eidelman, T. Uglov, Vladimir Zhulanov, R. Glattauer, Vikas Bansal, Z. Natkaniec, T. Sumiyoshi, Yukinori Sato, C. P. Shen, E. Solovieva, M. E. Sevior, K. Hayasaka, A. Abdesselam, M. Uchida, V. Gaur, J. G. Shiu, X. H. He, E. Nakano, T. Sanuki, J. Dalseno, Yoshinobu Unno, N. Gabyshev, D. Červenkov, Hiroaki Aihara, L. E. Piilonen, S. Okuno, G. Pakhlova, T. Aushev, M. J. Kim, V. Chobanova, D. Liventsev, M. Z. Wang, K. Kinoshita, U. Tamponi, C. Z. Yuan, A.L. Sibidanov, M. Starič, Phillip Urquijo, Peter Kodys, T. Ferber, M. Ritter, T. Kumita, S. Yashchenko, Y. Teramoto, S. Ogawa, C. Van Hulse, T. Julius, R. Chistov, R. Ayad, G. S. Varner, K. Sumisawa, Frank Simon, Andrey Sokolov, Seema Bahinipati, M. Bračko, P. Wang, T. Nanut, S. Sandilya, B. G. Cheon, James E. Fast, J. Yamaoka, M. N. Wagner, J. Haba, R. Itoh, D. Y. Kim, Y. Yook, S. Korpar, S. Wehle, T. Kawasaki, V.E. Shebalin, I. Adachi, Yongsun Kim, C. Schwanda, H. Farhat, Marko Petrič, K. Senyo, Y. S. Sohn, V.N. Zhilich, I. Jaegle, K. Miyabayashi, E. Nedelkovska, H. Nakazawa, D. Matvienko, D. M. Asner, G. Tatishvili, Z. Drásal, P. Pakhlov, Mikhail Danilov, K. Chilikin, R. Pestotnik, H. Park, A. Bozek, K. M. Williams, A. Chen, V.M. Aulchenko, E. Kato, A. Rostomyan, F. Thorne, V. Chekelian, R. Gillard, G. B. Mohanty, Y. Ban, R. Mizuk, Y. Yusa, S. K. Choi, Yang Li, Y. Choi, N. K. Nisar, L. Santelj, Y. Sakai, Y. M. Goh, Y. Watanabe, B. Bhuyan, A.E. Bondar, T. E. Browder, Kiyoshi Tanida, J. S. Lange, S. Ganguly, Z. Doležal, X. L. Wang, V. Savinov, W. S. Hou, V. Vorobyev, K. K. Joo, E. Won, and P. Vanhoefer

Subjects
Physics, Particle physics, KEKB, Electron–positron annihilation, Analytical chemistry, Pi, General Physics and Astronomy, Invariant mass, Omega
Abstract

The e(+)e(-) -> pi(+)pi(-) pi(0)chi(bj) ( J = 0, 1, 2) processes are studied using a 118 fb(-1) data sample acquired with the Belle detector at a center-of-mass energy of 10.867 GeV. Unambiguous pi(+)pi(-) pi(0)chi(bj) ( J = 1, 2), omega chi(b1) signals are observed, and indication for omega chi(b2) is seen, both for the first time, and the corresponding cross section measurements are presented. No significant pi(+)pi(-) pi(0)chi(b0) or omega chi(b0) signals are observed, and 90% confidence level upper limits on the cross sections for these two processes are obtained. In the pi(+)pi(-) pi(0) invariant mass spectrum, significant non-omega signals are also observed. We search for the X(3872)-like state (named X-b) decaying into omega Upsilon(1S); no significant signal is observed with a mass between 10.55 and 10.65 GeV= c(2).

Published
2014

5. Measurement of the Branching FractionB(Λc+→pK−π+)

Author

A. Garmash, M. Steder, V.N. Zhilich, G. Schnell, M. J. Kim, T. Iijima, M. Starič, I. Jaegle, K. Miyabayashi, L. E. Piilonen, T. Kumita, T. Kuhr, S. Nishida, H. K. Park, Y. Yamashita, E. Nedelkovska, A. M. Bakich, Z. Natkaniec, G. Pakhlova, I. Adachi, H. Nakazawa, D. Cinabro, A. Rostomyan, B. Golob, S. Yashchenko, J. B. Kim, T. Julius, V. Chekelian, H. J. Kim, N. Gabyshev, D. Červenkov, R. Chistov, S. Ganguly, Chang Liu, Y. Iwasaki, Y. J. Kwon, Jung-Hyun Kim, O. Schneider, D. A. Epifanov, B. Bhuyan, Sunmin Ryu, E. Won, T. Sumiyoshi, M. Niiyama, T. E. Browder, A. Zupanc, Sang Hoon Lee, H. Farhat, M. Feindt, A.S. Kuzmin, Yang Li, J. Klucar, T. Sanuki, Yongsun Kim, S. L. Olsen, S. Uno, C. Schwanda, T. Iwashita, Hitoshi Yamamoto, P. Vanhoefer, Y. Choi, O. Nitoh, R. Gillard, N. K. Nisar, K. Trabelsi, V. Savinov, H. Hayashii, K. Dutta, L. Santelj, V. Gaur, I. S. Cho, C. P. Shen, M. C. Chang, S. Ogawa, A.L. Sibidanov, M. Nakao, W. S. Hou, Y. S. Sohn, Z. Drásal, J. G. Shiu, J. Dalseno, T. Aushev, X. H. He, Y. M. Goh, Hiroaki Aihara, T. Ferber, V. Vorobyev, J. MacNaughton, Y. Kato, C. H. Wang, Phillip Urquijo, D. Dutta, R. Mussa, P. Pakhlov, Y. Teramoto, S. Uehara, J. Li, A. Ishikawa, M. Ritter, M. Bračko, J. Haba, E. Kato, D. Y. Kim, H. Sahoo, Mikhail Danilov, M. Shapkin, M. Röhrken, K. Chilikin, Z. P. Zhang, C. W. Park, P. Križan, T. A. Shibata, H. Miyata, M. Watanabe, G. Bonvicini, Y. Hoshi, S.I. Eidelman, K. Kinoshita, U. Tamponi, H. Park, A. Bozek, J. Libby, R. Pestotnik, K. Hayasaka, C. Bartel, B. G. Cheon, R. Glattauer, A. Vinokurova, G. B. Mohanty, Andrey Sokolov, V.M. Aulchenko, Yueh-Feng Liu, H. Kichimi, R. Mizuk, K. M. Williams, K. Belous, Kevin Varvell, P. Krokovny, J. H. Kang, M. Nayak, S. Korpar, Y. Watanabe, B.A. Shwartz, K. Cho, Y. Usov, Vladimir Zhulanov, E. Nakano, M. E. Sevior, B. Kronenbitter, W. Ostrowicz, James E. Fast, B. R. Ko, Samo Stanič, C. Van Hulse, Yoshinobu Unno, Y. Yook, T. K. Pedlar, A. Moll, D. Semmler, T. Saito, Peter Kodys, K. Senyo, M. Uchida, V. Chobanova, G. Tatishvili, D. Liventsev, G. S. Varner, R. Itoh, P. Wang, M. N. Wagner, Marko Petrič, H. J. Hyun, D. M. Asner, T. Kawasaki, S. K. Choi, S. Sandilya, A.E. Bondar, Kiyoshi Tanida, A. Bala, Z. Doležal, X. L. Wang, O. Seon, Frank Simon, Y. Sakai, M. Huschle, E. Solovieva, and Z. Q. Liu

Subjects
Physics, Branching fraction, Electron–positron annihilation, Analytical chemistry, General Physics and Astronomy, Atomic physics, Absolute branching fractions, Asymmetric energy, Belle detectors, Branching fractions, Data sample, Lambda, Nuclear physics, Baryon, Charmed baryons, KEKB, Pi, High Energy Physics::Experiment, Bar (unit)
Abstract

We present the first model-independent measurement of the absolute branching fraction of the Lambda(+)(c) -> pK(-)pi(+)decay using a data sample of 978 fb(-1) collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The number of Lambda(+)(c) baryons is determined by reconstructing the recoiling D(*)(-)(p) over bar pi(+)system in events of the type e(+)e(-) -> D(*)(-)(p) over bar pi(+)Lambda(+)(c). The branching fraction is measured to be B(Lambda(+)(c) -> pK(-)pi(+)) = (6.84 +/- 0.24(-0.27)(+0.21))%, where the first and second uncertainties are statistical and systematic, respectively.

Published
2014

6. Publisher’s Note: Observation ofD0−D¯0Mixing ine+e−Collisions [Phys. Rev. Lett. 112, 111801 (2014)]

Author

J. G. Shiu, E. Nakano, Byeong Rok Ko, R. Seidl, D. Epifanov, Phillip Urquijo, G. Schnell, T. Iijima, C. Liu, G. Tatishvili, Z. Q. Liu, Y. Choi, A. Garmash, T. Hara, L. Santelj, J. Dalseno, Y. Yook, V. Bhardwaj, Y. M. Goh, M. J. Kim, Y. B. Li, A.L. Sibidanov, T. K. Pedlar, T. Iwashita, T. Kawasaki, M. Uchida, V. Chobanova, K. Trabelsi, A. Moll, M. Starič, V. Gaur, T. Kuhr, M. Nakao, D. M. Asner, Dipanwita Dutta, J. Haba, H. Farhat, J. Libby, R. Glattauer, T. Kumita, M. Nayak, M. Shapkin, M. Röhrken, K. Chilikin, Y. J. Kim, A.E. Bondar, J. B. Kim, S. E. Vahsen, G. S. Varner, U. Tamponi, P.A. Lukin, M. Steder, Yasushi Nagasaka, I. S. Cho, L. E. Piilonen, R. Itoh, Z. Doležal, T. Higuchi, W. S. Hou, S. Uehara, M. N. Wagner, Y. Iwasaki, Y. J. Kwon, G. B. Mohanty, A. Rostomyan, P. Wang, K. Arinstein, R. Gillard, Alexei Kuzmin, Y. Sakai, B. G. Cheon, J. B. Singh, G. Pakhlova, S. K. Choi, Y. Watanabe, O. Schneider, Z. P. Zhang, S. Yashchenko, V. M. Aulchenko, D. Cinabro, Marko Petrič, H. J. Hyun, Y. S. Sohn, S. Uno, V. Vorobyev, H. Sahoo, C. Schwanda, V.N. Zhilich, S. H. Lee, I. Adachi, C. H. Wang, T. Julius, H. K. Park, K. Dutta, H. Hayashii, T. Uglov, Y. Yamashita, D. Matvienko, R. Chistov, Jung-Hyun Kim, I. Jaegle, K. Miyabayashi, A. Zupanc, B. Shwartz, E. Nedelkovska, S. Korpar, Z. Drásal, A. Bala, T.-A. Shibata, S. Okuno, B. Golob, M. E. Sevior, O. Seon, Frank Simon, C. B. Van Hulse, Sanmay Ganguly, Z. Natkaniec, N. K. Nisar, A. J. Schwartz, H. Aihara, T. Sumiyoshi, J. S. Lange, O. Nitoh, Y. Usov, J. Li, Y. Teramoto, Martin Ritter, S. Ogawa, T. Sanuki, Peter Kodys, J. E. Fast, D. Červenkov, Sunmin Ryu, X. H. He, C. W. Park, E. Won, M. Z. Wang, S. Eidelman, C. C. Zhang, H. Yamamoto, P. Vanhoefer, A. Bozek, H. Miyata, Y. Hoshi, B. Bhuyan, T. E. Browder, A. Bobrov, C. P. Shen, J. Klucar, A. Chen, T. Aushev, D. Y. Kim, V. Savinov, M. Danilov, T. Ferber, R. Mussa, A. Ishikawa, P. Križan, Samo Stanič, C. Kiesling, T. Peng, M. Bračko, A. Vinokurova, P. Krokovny, Y. Unno, K. Cho, and Andrey Sokolov

Subjects
Physics, Quantum mechanics, General Physics and Astronomy, Mixing (physics)
Published
2014

7. Observation ofD0−D¯0Mixing ine+e−Collisions

Author

A. J. Schwartz, Peter Kodys, Chang Liu, A.E. Bondar, J. G. Shiu, G. Schnell, T. Iijima, T. Kuhr, Mikhail Danilov, M. Shapkin, J. Dalseno, Y. Sakai, S. Ogawa, Z. P. Zhang, A. Rostomyan, Phillip Urquijo, M. Röhrken, K. Chilikin, G. Tatishvili, P. Lukin, B. R. Ko, H. Hayashii, E. Nakano, M. Ritter, L. E. Piilonen, S. E. Vahsen, V.N. Zhilich, A. Garmash, I. Adachi, R. Mussa, T. Aushev, K. Arinstein, G. Pakhlova, C. C. Zhang, H. Sahoo, C. Van Hulse, I. Jaegle, K. Miyabayashi, A. Ishikawa, T. Uglov, J. B. Kim, Z. Doležal, G. B. Mohanty, E. Nedelkovska, Anze Zupanc, C. W. Park, Z. Drásal, S. Okuno, T. K. Pedlar, Jasvinder A. Singh, T. Kawasaki, M. Uchida, P. Križan, T. Ferber, I. S. Cho, A. Moll, H. Farhat, M. Steder, Marko Petrič, S. Yashchenko, Yasushi Nagasaka, B. Golob, V. Chobanova, J. Li, Yoshinobu Unno, G. S. Varner, O. Nitoh, Y. Iwasaki, Y. S. Sohn, C. H. Wang, H. J. Hyun, Y. J. Kwon, R. Itoh, Takuya Higuchi, D. Dutta, H. K. Park, T. Julius, R. Chistov, P. Wang, Y. Yamashita, M. N. Wagner, D. Matvienko, Yongsun Kim, X. H. He, M. Z. Wang, Andrey Sokolov, Z. Q. Liu, Hiroaki Aihara, Y. Usov, A. Bozek, J. Haba, U. Tamponi, O. Schneider, R. Seidl, D. M. Asner, S. Uno, C. Schwanda, Y. Teramoto, A. Vinokurova, K. Dutta, Samo Stanič, James E. Fast, Byung Gu Cheon, P. Krokovny, T. A. Shibata, H. Miyata, Y. Hoshi, K. Cho, A.S. Kuzmin, B. Bhuyan, A. Chen, Y. Yook, Semen Eidelman, S. Korpar, B.A. Shwartz, T. E. Browder, S. Uehara, D. Cinabro, J. Klucar, Z. Natkaniec, A. Bobrov, R. Gillard, D. Y. Kim, S. K. Choi, V. Savinov, T. Sumiyoshi, V. Gaur, V. Bhardwaj, M. J. Kim, Sang Hoon Lee, T. Sanuki, D. Červenkov, M. Starič, K. Trabelsi, A. Bala, Yang Li, Y. Choi, T. Kumita, N. K. Nisar, T. Hara, L. Santelj, M. E. Sevior, M. Nakao, C. P. Shen, Y. M. Goh, Jung-Hyun Kim, C. Kiesling, A.L. Sibidanov, D. A. Epifanov, T. Peng, M. Bračko, J. S. Lange, S. Ganguly, J. Libby, R. Glattauer, M. Nayak, Sunmin Ryu, E. Won, T. Iwashita, Hitoshi Yamamoto, P. Vanhoefer, W. S. Hou, V. Vorobyev, V.M. Aulchenko, Y. Watanabe, O. Seon, and Frank Simon

Subjects
Nuclear physics, Physics, KEKB, law, Electron–positron annihilation, General Physics and Astronomy, Collider, Measure (mathematics), Mixing (physics), Standard deviation, Bar (unit), Luminosity, law.invention
Abstract

We observe D-0-(D) over bar (0) mixing in the decay D-0 -> K+ pi(-) using a data sample of integrated luminosity 976 fb(-1) collected with the Belle detector at the KEKB e(+) e(-) asymmetric-energy collider. We measure the mixing parameters x'(2) = (0.09 +/- 0.22) x 10(-3) and y' = (4.6 +/- 3.4) x 10(-3) and the ratio of doubly Cabibbo-suppressed to Cabibbo-favored decay rates R-D = (3.53 +/- 0.13) x 10(-3) where the uncertainties are statistical and systematic combined. Our measurement excludes the no-mixing hypothesis at the 5.1 standard deviation level.

Published
2014

8. Search for Bottomonium States in Exclusive RadiativeΥ(2S)Decays

Author

L. E. Piilonen, M. Z. Wang, U. Tamponi, G. Pakhlova, M. Steder, V. Gaur, Norihito Muramatsu, G. Schnell, T. Iijima, M. Nakao, S. Yashchenko, P. Lukin, B. R. Ko, A. Frey, J. MacNaughton, E. Kato, Marko Petrič, J. Wiechczynski, T. Julius, A. Drutskoy, T. K. Pedlar, Po-Hsun Chen, R. Chistov, H. J. Hyun, A.E. Bondar, K. Trabelsi, C. P. Shen, T. Aushev, J. Li, A.L. Sibidanov, A. Moll, J. Yamaoka, V. Bhardwaj, K. Senyo, Kiyoshi Tanida, W. S. Hou, D. Matvienko, S. Nishida, M. Feindt, D. Semmler, A. Rostomyan, Z. Doležal, X. L. Wang, D. H. Kah, S. E. Vahsen, V. Vorobyev, D. M. Asner, B. G. Cheon, Tariq Aziz, I. Adachi, Yang Li, T. Sumiyoshi, C. Van Hulse, Frank Simon, Y. B. Hsiung, G. Tatishvili, G. Bonvicini, K. M. Williams, Y. Choi, Sang Hoon Lee, J. B. Kim, C. Oswald, N. K. Nisar, T. Hara, L. Santelj, R. Mussa, T. Sanuki, Yoshinobu Unno, Z. P. Zhang, H. O. Kim, Y. Iwasaki, Y. J. Kwon, M. Shapkin, A. Ishikawa, B. Golob, R. Gillard, T. A. Shibata, H. Miyata, T. Saito, H. Park, T. Kawasaki, J. S. Lange, M. Röhrken, K. Chilikin, A. Bozek, O. Schneider, P. Krokovny, Y. Hoshi, S.I. Eidelman, C. W. Park, P. Križan, S. Ganguly, S. K. Choi, Y. M. Goh, K. Hayasaka, Peter Kodys, K. Cho, A.S. Kuzmin, Anze Zupanc, B. Bhuyan, S. Korpar, H. Farhat, Andrey Sokolov, T. E. Browder, S. Uehara, M. Uchida, J. H. Kang, D. Y. Kim, V. Chobanova, J. Klucar, R. Pestotnik, H. Hayashii, G. B. Mohanty, D. Liventsev, Y. Sakai, V. Savinov, Sunmin Ryu, James E. Fast, Yukinori Sato, J. G. Shiu, J. Dalseno, E. Won, A. Bala, O. Nitoh, Jochen Dingfelder, Y. S. Sohn, R. Mizuk, Y. Yusa, V.N. Zhilich, G. S. Varner, A. M. Bakich, M. Starič, Phillip Urquijo, Z. Q. Liu, Hiroaki Aihara, T. Kumita, K. Miyabayashi, Torben Ferber, Yongsun Kim, R. Itoh, M. Ritter, P. Vanhoefer, H. Kawai, C. Ng, P. Wang, M. N. Wagner, C. Z. Yuan, S. Uno, Y. Watanabe, Yasushi Nagasaka, S. Sandilya, N. Gabyshev, Samo Stanič, C. Kiesling, M. Bračko, C. C. Zhang, M. Watanabe, C. H. Wang, D. Dutta, H. K. Park, Y. Yamashita, S. Ogawa, H. Sahoo, T. Uglov, E. Solovieva, D. Cinabro, Jung-Hyun Kim, B.A. Shwartz, S. Okuno, M. E. Sevior, Y. Teramoto, Bruce Yabsley, K. Sakai, J. Libby, T. Tsuboyama, M. Nayak, and J. Haba

Subjects
Physics, Luminosity (scattering theory), Meson, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, General Physics and Astronomy, Resonance, 01 natural sciences, Nuclear physics, Pion, 0103 physical sciences, Atomic physics, 010306 general physics, Bar (unit)
Abstract

We search for bottomonium states in gamma(2S) -> (b (b) over bar)gamma decays with an integrated luminosity of 24.7 fb(-1) recorded at the gamma(2S) resonance with the Belle detector at KEK, containing (157.8 +/- 3.6) x 10(6) gamma(2S) events. The (b (b) over bar) system is reconstructed in 26 exclusive hadronic final states composed of charged pions, kaons, protons, and K-0(S) mesons. We find no evidence for the state recently observed around 9975 MeV (X-b (b) over bar) in an analysis based on a data sample of 9.3 x 10(6) gamma(2S) events collected with the CLEO III detector. We set a 90% confidence level upper limit on the branching fraction B[gamma(2S) -> X-b (b) over bar gamma] x Sigma(i) B[X-b (b) over bar -> h(i)] eta(b)(1S)gamma] x Sigma B-i[eta(b)(1S) -> h(i)] < 3.7 x 10(-6).

Published
2013

9. Precision Measurement of Charged Pion and Kaon Differential Cross Sections ine+e−Annihilation ats=10.52 GeV

Author

D. Cinabro, A. Ishikawa, W. S. Hou, B. Bhuyan, P. Križan, T. E. Browder, Jung-Hyun Kim, V. Vorobyev, D. A. Epifanov, H. J. Kim, J. Klucar, O. Nitoh, P. Kapusta, S. Okuno, I. Adachi, A. Ogawa, V. Chekelian, Y. Teramoto, P. Krokovny, E. Won, Rakesh Kumar, Hiroaki Aihara, H. Sahoo, J. B. Kim, Peter Kodys, A.L. Sibidanov, W. W. Jacobs, K. Cho, R. Seidl, V.N. Zhilich, T. Uglov, Andrey Sokolov, J. H. Kang, J. Haba, K. Miyabayashi, R. Mizuk, M. Shapkin, M. Röhrken, E. Nedelkovska, K. Chilikin, Y. Usov, M. J. Kim, M. Grosse Perdekamp, F. Giordano, M. Starič, James E. Fast, B.A. Shwartz, B. R. Ko, B. Golob, H. Farhat, T. Kumita, K. Senyo, G. Schnell, T. Iijima, J. S. Lange, T. K. Pedlar, E. Nakano, Vladimir Zhulanov, M. Watanabe, A. Moll, P. Pakhlov, R. Pestotnik, Z. Drásal, M. E. Sevior, V. Gaur, M. Nakao, S. Ogawa, C. Van Hulse, Y. S. Sohn, Y. J. Kwon, C. Ng, Y. Watanabe, O. Schneider, T. A. Shibata, H. Miyata, E. Kato, H. Hayashii, Y. Hoshi, Norihito Muramatsu, Yoshinobu Unno, T. Sumiyoshi, T. Tsuboyama, M. Nayak, H. Park, A. Bozek, K. Hayasaka, C. H. Wang, D. Dutta, H. K. Park, Y. Yamashita, S.I. Eidelman, Sang Hoon Lee, M. Bračko, H. O. Kim, B. G. Cheon, T. Sanuki, Jolanta Brodzicka, L. E. Piilonen, C. P. Shen, S. L. Olsen, K. M. Williams, Richard T. Kouzes, V.M. Aulchenko, M. Leitgab, A. Chen, Y. B. Hsiung, Jingxu Wang, S. Uno, T. Aushev, C. Schwanda, Yukinori Sato, J. G. Shiu, J. Dalseno, T. Julius, Po-Hsun Chen, Yang Li, M. Sumihama, Y. Choi, N. K. Nisar, L. Santelj, Y. M. Goh, A. M. Bakich, Z. Natkaniec, T. Ohshima, N. Gabyshev, G. Tatishvili, C. Oswald, Meng Wang, T. Kawasaki, M. Uchida, V. Chobanova, D. Liventsev, Marko Petrič, H. J. Hyun, G. S. Varner, P. Smerkol, R. Itoh, D. Matvienko, P. Wang, M. N. Wagner, D. M. Asner, S. Sandilya, A. Vossen, O. Seon, Frank Simon, Y. Sakai, E. Solovieva, Z. Q. Liu, A.E. Bondar, and R. Gillard

Subjects
Physics, Particle physics, Annihilation, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, General Physics and Astronomy, 01 natural sciences, Resonance (particle physics), law.invention, Nuclear physics, Pion, KEKB, law, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Collider, Energy (signal processing)
Abstract

Measurements of inclusive differential cross sections for charged pion and kaon production in e+e- annihilation have been carried out at a center-of-mass energy of √s=10.52 GeV. The measurements were performed with the Belle detector at the KEKB e+e- collider using a data sample containing 113×106 e+e -→qq events, where q={u,d,s,c}. We present charge-integrated differential cross sections dσh±/dz for h±={π±,K±} as a function of the relative hadron energy z=2Eh/√s from 0.2 to 0.98. The combined statistical and systematic uncertainties for π± (K±) are 4% (4%) at z∼0.6 and 15% (24%) at z∼0.9. The cross sections are the first measurements of the z dependence of pion and kaon production for z>0.7 as well as the first precision cross section measurements at a center-of-mass energy far below the Z0 resonance used by the experiments at LEP and SLC. © 2013 American Physical Society.

Published
2013

10. Study ofe+e−→π+π−J/ψand Observation of a Charged Charmoniumlike State at Belle

Author

Mikhail Danilov, M. Röhrken, M. Starič, M. Bračko, R. Mussa, K. T. Kim, R. Gillard, A. Ishikawa, G. Bonvicini, M. J. Kim, J. S. Lange, Torben Ferber, D. Cinabro, M. Nakao, B.A. Shwartz, S. K. Choi, Yongsun Kim, Z. Natkaniec, S. Uno, T. Tsuboyama, M. Nayak, C. Schwanda, P. Križan, K. Dutta, Leo Piilonen, M. E. Sevior, W. Ostrowicz, J. Haba, K. Miyabayashi, T. E. Browder, P. Krokovny, Yasuyuki Horii, V. Gaur, C. C. Zhang, O. Seon, Frank Simon, K. Belous, R. Pestotnik, N. Gabyshev, P. Chang, E. Nedelkovska, Andrey Sokolov, A.E. Bondar, M. Steder, M. Watanabe, S. Korpar, Jolanta Brodzicka, S. E. Vahsen, A. Bozek, Kiyoshi Tanida, K. Cho, Jung-Hyun Kim, M. Sumihama, Y. Li, T. Aushev, V. Zhilich, M. Uchida, J. H. Kang, D. A. Epifanov, Marko Petrič, Yukinori Sato, Y. Choi, Z. Doležal, X. L. Wang, S. H. Lee, J. G. Shiu, G. Schnell, Y. Iwasaki, H. J. Hyun, P. Smerkol, Y. Onuki, K. Senyo, James E. Fast, A.L. Sibidanov, V. Chobanova, J. Dalseno, J. Li, J. Libby, Y. Yamashita, H. Nakazawa, P. Lukin, B. R. Ko, A. Chen, O. Schneider, A. Zupanc, Y. Yook, Z. Q. Liu, D. Santel, J. Yamaoka, G. Varner, V.M. Aulchenko, M. Ritter, B. G. Cheon, Y. Sakai, Y. Hoshi, H. J. Kim, A. Bala, Kevin Varvell, Semen Eidelman, D. Matvienko, Y. J. Kwon, T. K. Pedlar, A. Moll, Z. Drásal, R. Itoh, Y. Teramoto, Y. Watanabe, P. Wang, M. N. Wagner, O. Nitoh, T. Sumiyoshi, C. Kiesling, V. Chekelian, D. Dutta, H. K. Park, A. Drutskoy, E. Nakano, T. Kuhr, D. M. Asner, D. Semmler, H. Farhat, G. Tatishvili, S. Okuno, Z. P. Zhang, B. Golob, C. Van Hulse, E. Solovieva, K. Trabelsi, Hiroaki Aihara, C. Z. Yuan, C. P. Shen, S. Sandilya, T. Sanuki, G. Pakhlova, Bruce Yabsley, Y. S. Sohn, C. Oswald, T. Kawasaki, C. X. Liu, S. Yashchenko, Yoshinobu Unno, T. Julius, Po-Hsun Chen, R. Chistov, T. Saito, R. Seidl, Peter Kodys, M. Shapkin, E. Won, H. Sahoo, T. Uglov, Toru Iijima, S. Uehara, S. Ogawa, P. Pakhlov, H. Park, I. Adachi, J. B. Kim, B. Bhuyan, J. Klucar, A. M. Bakich, V. Savinov, C. H. Wang, S. Nishida, A. Rostomyan, W. S. Hou, V. Bhardwaj, M. Z. Wang, K. Kinoshita, U. Tamponi, Tariq Aziz, N. K. Nisar, A. Frey, Y. M. Goh, G. B. Mohanty, S. Ganguly, R. Mizuk, Y. Yusa, D. Joffe, P. Vanhoefer, V. Vorobyev, H. Hayashii, K. Inami, T. A. Shibata, H. Miyata, M. Bischofberger, K. Hayasaka, M. Feindt, S. L. Olsen, D. H. Kah, and Y. B. Hsiung

Subjects
Physics, 010308 nuclear & particles physics, Electron–positron annihilation, General Physics and Astronomy, Dalitz plot, Resonance, 01 natural sciences, Nuclear physics, 0103 physical sciences, Mass spectrum, Tetraquark, Z(4430), Atomic physics, 010306 general physics, Zc(3900), X(3872)
Abstract

The cross section for ee+ e- → π+ π- J/ψ between 3.8 and 5.5 GeV is measured with a 967 fb(-1) data sample collected by the Belle detector at or near the Υ(nS) (n = 1,2,…,5) resonances. The Y(4260) state is observed, and its resonance parameters are determined. In addition, an excess of π+ π- J/ψ production around 4 GeV is observed. This feature can be described by a Breit-Wigner parametrization with properties that are consistent with the Y(4008) state that was previously reported by Belle. In a study of Y(4260) → π+ π- J/ψ decays, a structure is observed in the M(π(±)J/ψ) mass spectrum with 5.2σ significance, with mass M = (3894.5 ± 6.6 ± 4.5) MeV/c2 and width Γ = (63 ± 24 ± 26) MeV/c2, where the errors are statistical and systematic, respectively. This structure can be interpreted as a new charged charmoniumlike state.

Published
2013

11. Evidence forB−→τ−ν¯τwith a Hadronic Tagging Method Using the Full Data Sample of Belle

Author

D. M. Asner, Yukinori Sato, G. Tatishvili, B. R. Ko, Y. Iwasaki, J. Dalseno, S. Nishida, S. H. Lee, Phillip Urquijo, T. A. Shibata, S. Uno, Sunmin Ryu, O. Schneider, H. Hayashii, S. Esen, A.S. Kuzmin, Y. Sakai, D. Cinabro, Anze Zupanc, Hitoshi Yamamoto, P. Vanhoefer, Pavel Krokovny, Y. Teramoto, D. Liventsev, Marko Petrič, Jung-Hyun Kim, P. Smerkol, A. Drutskoy, G. Schnell, E. Solovieva, Leo Piilonen, O. Seon, Frank Simon, K. Miyabayashi, M. Barrett, B. Bhuyan, R. Itoh, K. Trabelsi, B. G. Cheon, D. Matvienko, V. Vorobyev, M. J. Kim, S. Uehara, T. Iwashita, P. Wang, T. Kuhr, J. Klucar, I. S. Cho, E. Nakano, Y. S. Sohn, Takuya Higuchi, C. Van Hulse, B. Golob, A. Ishikawa, A.L. Sibidanov, V. Gaur, M. Shapkin, M. N. Wagner, B. Shwartz, S. Okuno, Samo Korpar, C. P. Shen, K. Hara, H. Farhat, P. Pakhlov, Bruce Yabsley, T. Kumita, T. E. Browder, O. Nitoh, K. Inami, T. Nozaki, M. Nakao, J. S. Lange, S. Ganguly, V. Zhilich, C. W. Park, P. Križan, J. Libby, I. Adachi, Jochen Dingfelder, A. Bozek, C. H. Wang, Kevin Varvell, J. Li, D. Dutta, H. K. Park, D. Santel, G. Varner, Y. Hoshi, A. M. Bakich, C. Oswald, T. Kawasaki, M. T. Prim, Hiroaki Aihara, T. Mori, Y. Usov, K. M. Williams, T. Julius, Po-Hsun Chen, A. Chen, Y. Unno, S. Sandilya, Norihito Muramatsu, M. Z. Wang, K. Kinoshita, J. Haba, Toru Iijima, T. Sumiyoshi, Z. P. Zhang, M. Röhrken, K. Chilikin, H. O. Kim, H. Nakazawa, V. Bhardwaj, H. Ozaki, T. Sanuki, Yongsun Kim, A. J. Schwartz, V. Chekelian, Peter Kodys, Richard T. Kouzes, Tariq Aziz, C. Schwanda, Yang Li, R. Pestotnik, Chang Liu, E. Won, N. K. Nisar, Z. Drásal, T. Hara, A. Frey, K. Sakai, M. Uchida, H. Sahoo, G. Pakhlova, Y. M. Goh, T. Tsuboyama, M. Nayak, G. B. Mohanty, M. Watanabe, R. Mizuk, Y. Yusa, Vladimir Zhulanov, M. E. Sevior, Andrey Sokolov, B. Kronenbitter, J. H. Kang, K. Nishimura, D. Epifanov, T. K. Pedlar, A. Moll, Semen Eidelman, G. Bonvicini, K. Cho, K. T. Kim, R. Gillard, C. Ng, K. Senyo, Yasuyuki Horii, A.E. Bondar, Y. Choi, Z. Doležal, Z. Q. Liu, M. Starič, Y. Watanabe, H. Miyata, J. G. Shiu, K. Hayasaka, S. L. Olsen, M. Sumihama, Y. Ushiroda, Tagir Aushev, Y. Yamashita, Yueh-Feng Liu, Z. Natkaniec, T. Ohshima, N. Gabyshev, C. Kiesling, M. Bračko, J. B. Kim, and Y. J. Kwon

Subjects
Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, General Physics and Astronomy, 01 natural sciences, Measure (mathematics), law.invention, Nuclear physics, KEKB, Recoil, law, 0103 physical sciences, B meson, 010306 general physics, Collider
Abstract

We measure the branching fraction of B- → τ- ν(τ) using the full Υ(4S) data sample containing 772×10(6) BB pairs collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. Events with BB pairs are tagged by reconstructing one of the B mesons decaying into hadronic final states, and B- → τ- ν(τ) candidates are detected in the recoil. We find evidence for B- → τ- ν(τ) with a significance of 3.0 standard deviations including systematic errors and measure a branching fraction B(B- → τ- ν(τ))=[0.72(-0.25)(+0.27)(stat)±0.11(syst)]×10(-4).

Published
2013

12. Evidence for theηb(2S)and Observation ofhb(1P)→ηb(1S)γandhb(2P)→ηb(1S)γ

Author

K. Trabelsi, C. P. Shen, B.A. Shwartz, Z. Drásal, K. Arinstein, R. Mizuk, Y. Iwasaki, Y. J. Kwon, T. Aushev, M. E. Sevior, A. Kuzmin, O. Schneider, M. Sumihama, J. Li, J. Yamaoka, T. Iwashita, Yukinori Sato, J. G. Shiu, A.L. Sibidanov, P. Kapusta, S. Okuno, Z. Q. Liu, J. Dalseno, S. Sandilya, Y. Watanabe, T. Tsuboyama, T. Kawasaki, V. Bhardwaj, Y. Yamashita, M. Shapkin, Marko Petrič, A. Garmash, H. J. Hyun, P. Smerkol, K. T. Kim, M. J. Kim, T. Iijima, S. K. Choi, O. Nitoh, M. Uchida, M. Röhrken, K. Chilikin, M. Starič, Y. Teramoto, Bruce Yabsley, C. Ng, S. Nishida, Y. Onuki, T. Kumita, D. Matvienko, D. Liventsev, B. G. Cheon, Yongsun Kim, A.E. Bondar, S. Uno, C. Schwanda, Kiyoshi Tanida, T. Kuhr, J. Libby, Tariq Aziz, C. Z. Yuan, G. S. Varner, X. L. Wang, V. Chekelian, Z. Doležal, J. Haba, R. Pestotnik, D. M. Asner, R. Itoh, K. Belous, S. Korpar, Jolanta Brodzicka, O. Seon, Frank Simon, Y. Choi, W. S. Hou, P. Wang, D. Santel, Peter Kodys, V.M. Aulchenko, Yueh-Feng Liu, R. Louvot, P. Pakhlov, G. Tatishvili, K. Senyo, T. Hara, T. Uglov, I. Tikhomirov, K. M. Williams, Jung-Hyun Kim, A. Chen, V. Vorobyev, Y. Sakai, H. Park, A. Bozek, S. Koblitz, A. Drutskoy, E. Solovieva, B. Bhuyan, T. E. Browder, M. Danilov, I. S. Cho, T. Nozaki, B. Golob, J. S. Lange, A. M. Bakich, Z. Natkaniec, T. Ohshima, E. Won, C. H. Wang, P. Vanhoefer, M. Watanabe, G. B. Mohanty, N. Gabyshev, V.N. Zhilich, I. Jaegle, K. Miyabayashi, M. Bračko, Samo Stanič, Y. S. Sohn, D. Epifanov, B. R. Ko, T. K. Pedlar, A. Moll, G. Bonvicini, A. Vinokurova, P. Krokovny, K. Cho, S. Uehara, M. Z. Wang, K. Kinoshita, Norihito Muramatsu, Anton Poluektov, H. Hayashii, Y. Unno, I. Adachi, Kevin Varvell, M. Iwabuchi, D. Mohapatra, T. Sumiyoshi, Sang Hoon Lee, T. Sanuki, L. E. Piilonen, G. Pakhlova, Andrey Sokolov, J. H. Kang, T. Julius, K. Nishimura, Po-Hsun Chen, H. Aihara, R. Chistov, James E. Fast, Z. P. Zhang, H. O. Kim, S. L. Olsen, R. Mussa, Richard T. Kouzes, A. Ishikawa, A. Bay, C. Liu, C. W. Park, P. Križan, Y. B. Hsiung, V. Gaur, M. Nakao, S. McOnie, H. J. Kim, T. A. Shibata, H. Miyata, M. Bischofberger, Y. Hoshi, S.I. Eidelman, K. Hayasaka, and Yasuyuki Horii

Subjects
Physics, Crystallography, KEKB, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, General Physics and Astronomy, Resonance, 010306 general physics, 01 natural sciences
Abstract

We report the first evidence for the η(b)(2S) using the h(b)(2P)→η(b)(2S)γ transition and the first observation of the h(b)(1P)→η(b)(1S)γ and h(b)(2P)→η(b)(1S)γ transitions. The mass and width of the η(b)(1S) and η(b)(2S) are measured to be m(η(b)(1S))=(9402.4±1.5±1.8) MeV/c(2), m(η(b)(2S))=(9999.0±3.5(-1.9)(+2.8)) MeV/c(2), and Γ(η(b)(1S))=(10.8(-3.7-2.0)(+4.0+4.5)) MeV. We also update the h(b)(1P) and h(b)(2P) mass measurements. We use a 133.4 fb(-1) data sample collected at energies near the Υ(5S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.

Published
2012

13. Erratum: Evidence forCPViolation in the DecayD+→KS0π+[Phys. Rev. Lett.109, 021601 (2012)]

Author

S. Uehara, M. Uchida, Z. Natkaniec, Norihito Muramatsu, D. Liventsev, Sunmin Ryu, Y. Unno, C. W. Park, E. Won, T. Iijima, G. S. Varner, A. Zupanc, I. Adachi, O. Nitoh, Marko Petrič, T. Kuhr, H. J. Hyun, P. Smerkol, R. Itoh, P. Wang, W. S. Hou, Alexei Kuzmin, M. J. Kim, T. Aushev, S. Ogawa, V. Vorobyev, M. Starič, Andrey Sokolov, Z. Doleal, G. Bonvicini, D. Matvienko, Y. Miyazaki, J. H. Kang, K. Nishimura, C. Z. Yuan, Frank Simon, E. Nakano, R. Mizuk, A. Vinokurova, B. Golob, P. Krian, V. V. Zhulanov, Byeong Rok Ko, Byung Gu Cheon, H. Sahoo, Tariq Aziz, J. S. Lange, Y. Iwasaki, Y. Sakai, Y. Choi, P. Krokovny, Y. J. Kwon, G. Tatishvili, H. O. Kim, O. Schneider, K. Cho, M. Iwabuchi, Y. M. Goh, K. Trabelsi, C. P. Shen, K. Senyo, A. Ishikawa, C. L. Lim, T. Kawasaki, A.E. Bondar, D. M. Asner, K. S. Park, E. Solovieva, V. Bhardwaj, T. K. Pedlar, A. Moll, S. L. Olsen, R. Louvot, V.E. Shebalin, M. Bischofberger, Y. Hoshi, H. K. Park, K. Hayasaka, Yasuyuki Horii, C. Liu, Y. Yamashita, V. Gaur, Y. B. Hsiung, S. Uno, M. Nakao, C. Schwanda, Kevin Varvell, G. B. Mohanty, T. Mori, H. Aihara, S. Okuno, Satoshi Tanaka, Y. F. Liu, Z. P. Zhang, Z. Q. Liu, J. Haba, Y. Teramoto, J. Libby, K. Sakai, Y. Watanabe, K. T. Kim, H. Nakazawa, J. E. Fast, T. Tsuboyama, A. J. Schwartz, M. E. Sevior, L. E. Piilonen, G. Pakhlova, C. C. Zhang, T. Iwashita, P. Kody, J. B. Kim, M. Watanabe, Anton Poluektov, Y. Onuki, T. Julius, W. Ostrowicz, Po-Hsun Chen, V. M. Aulchenko, C. Kiesling, Y. S. Sohn, M. Bračko, V.N. Zhilich, I. S. Cho, H. Hayashii, B. Shwartz, T. Sumiyoshi, K. Kinoshita, S. Koblitz, Samo Stanič, Martin Ritter, T. Sanuki, A. M. Bakich, R. Seidl, T. Ohshima, C. H. Wang, T.-A. Shibata, N. Gabyshev, A.L. Sibidanov, M. C. Chang, M. Shapkin, S. Eidelman, M. Röhrken, K. Chilikin, Y. J. Kim, P. Pakhlov, K. Belous, S. Korpar, S. H. Lee, R. Pestotnik, Yukinori Sato, A. Garmash, J. G. Shiu, Z. Drásal, Y. B. Li, J. Li, A. Bozek, Yasushi Nagasaka, H. Yamamoto, A. Chen, S. Nishida, X. L. Wang, B. Bhuyan, and T. E. Browder

Subjects
Physics, Particle physics, Quantum mechanics, General Physics and Astronomy, CP violation
Published
2012

14. Evidence forCPViolation in the DecayD+→KS0π+

Author

V.N. Zhilich, Andrey Sokolov, J. H. Kang, K. Nishimura, G. Bonvicini, T. Aushev, Y. Iwasaki, Y. J. Kwon, A. Vinokurova, J. Haba, James E. Fast, O. Schneider, M. Shapkin, P. Krokovny, J. Li, M. Röhrken, Tariq Aziz, G. Tatishvili, K. Cho, S. Okuno, S. L. Olsen, K. Chilikin, Yang Li, C. C. Zhang, Y. Watanabe, B.A. Shwartz, Y. Choi, T. Sumiyoshi, Z. Q. Liu, Sang Hoon Lee, Yongsun Kim, T. Sanuki, Yukinori Sato, J. G. Shiu, S. Uno, C. Schwanda, A. M. Bakich, M. Watanabe, Z. Natkaniec, T. Ohshima, R. Seidl, Y. B. Hsiung, W. Ostrowicz, M. C. Chang, M. Iwabuchi, L. E. Piilonen, G. Pakhlova, A. Ishikawa, E. Nakano, Y. Teramoto, T. Julius, Po-Hsun Chen, M. J. Kim, S. Nishida, I. S. Cho, M. Ritter, C. W. Park, A.L. Sibidanov, A. Garmash, Kevin Varvell, Anze Zupanc, Vladimir Zhulanov, R. Pestotnik, M. E. Sevior, M. Starič, B. R. Ko, C. L. Lim, T. Kawasaki, X. L. Wang, P. Križan, S. Uehara, Y. M. Goh, N. Gabyshev, T. Iijima, K. S. Park, Z. Drásal, C. H. Wang, M. Uchida, Y. S. Sohn, T. K. Pedlar, K. Trabelsi, Marko Petrič, C. P. Shen, Satoshi Tanaka, Y. Onuki, D. Liventsev, T. Kuhr, W. S. Hou, A. Moll, H. K. Park, Y. Yamashita, H. J. Hyun, P. Smerkol, H. Nakazawa, Yasushi Nagasaka, T. Mori, H. Aihara, A.E. Bondar, G. S. Varner, D. Matvienko, Y. Miyazaki, R. Itoh, O. Nitoh, P. Wang, A. J. Schwartz, T. A. Shibata, B. G. Cheon, K. Sakai, B. Bhuyan, M. Bischofberger, Norihito Muramatsu, T. E. Browder, D. M. Asner, Y. Hoshi, S.I. Eidelman, V. Vorobyev, V. Bhardwaj, R. Louvot, J. Libby, T. Tsuboyama, V.E. Shebalin, Z. Doležal, C. Liu, R. Mizuk, K. Hayasaka, V.M. Aulchenko, Yueh-Feng Liu, V. Gaur, M. Nakao, Yasuyuki Horii, K. T. Kim, C. Z. Yuan, G. B. Mohanty, Sunmin Ryu, Y. Unno, E. Won, I. Adachi, K. Kinoshita, K. Senyo, P. Pakhlov, A. Kuzmin, Z. P. Zhang, J. B. Kim, S. Ogawa, H. O. Kim, Hitoshi Yamamoto, A. Bozek, S. Koblitz, K. Belous, S. Korpar, Samo Stanič, Peter Kodys, B. Golob, J. S. Lange, Anton Poluektov, T. Iwashita, H. Hayashii, C. Kiesling, A. Chen, M. Bračko, Frank Simon, Y. Sakai, H. Sahoo, and E. Solovieva

Subjects
Physics, Particle physics, Annihilation, 010308 nuclear & particles physics, media_common.quotation_subject, Electron–positron annihilation, General Physics and Astronomy, 7. Clean energy, 01 natural sciences, Asymmetry, Luminosity, law.invention, Nuclear physics, KEKB, law, 0103 physical sciences, CP violation, High Energy Physics::Experiment, 010306 general physics, Collider, media_common
Abstract

We observe evidence for CP violation in the decay D+ → K(S)(0)π+ using a data sample with an integrated luminosity of 977 fb(-1) collected by the Belle detector at the KEKB e+ e- asymmetric-energy collider. The CP asymmetry in the decay is measured to be (-0.363±0.094±0.067)%, which is 3.2 standard deviations away from zero, and is consistent with the expected CP violation due to the neutral kaon in the final state.

Published
2012

15. Observation of New Resonant Structures inγγ→ωϕ,ϕϕ, andωω

Author

Marko Petrič, H. J. Hyun, P. Smerkol, Yukinori Sato, J. G. Shiu, D. Matvienko, J. Dalseno, Phillip Urquijo, Y. Miyazaki, I. S. Cho, T. Mori, H. Aihara, T. Aushev, J. Li, M. Ritter, C. P. Shen, D. M. Asner, Y. S. Sohn, P. Pakhlov, P. Kodý, L. E. Piilonen, R. Mussa, C. Liu, D. Epifanov, V.N. Zhilich, B. R. Ko, K. Senyo, A. Ishikawa, A. M. Bakich, T. Ohshima, G. Tatishvili, H. Hayashii, Frank Simon, G. Pakhlova, R. Mizuk, V. Gaur, C. W. Park, E. Nakano, A. Bozek, C. H. Wang, S. Koblitz, Yang Li, Y. Choi, M. Nakao, Z. Q. Liu, B.A. Shwartz, S. Uehara, Y. Iwasaki, T. K. Pedlar, B. G. Cheon, S. McOnie, B. Bhuyan, N. Gabyshev, A. Moll, M. Shapkin, K. Miyabayashi, Y. J. Kwon, O. Nitoh, T. E. Browder, H. J. Kim, T. Kawasaki, Andrey Sokolov, M. Uchida, T. Nozaki, O. Schneider, T. Julius, Po-Hsun Chen, R. Chistov, J. H. Kang, H. Nakazawa, P. Krian, M. Röhrken, T. Iijima, K. Nishimura, C. C. Zhang, D. Liventsev, K. Belous, J. S. Lange, S. Korpar, R. Seidl, Y. M. Goh, S. Nishida, Z. Doleal, M. Watanabe, James E. Fast, A.E. Bondar, H. Sahoo, G. S. Varner, X. L. Wang, C. Z. Yuan, H. K. Park, Y. Yamashita, Z. P. Zhang, H. O. Kim, T. Uglov, A. Vinokurova, R. Pestotnik, Vladimir Zhulanov, M. C. Chang, R. Itoh, Norihito Muramatsu, Z. Drásal, P. Krokovny, M. E. Sevior, R. Louvot, W. S. Hou, P. Wang, K. T. Kim, K. Cho, M. J. Kim, P. Chang, T. A. Shibata, H. Miyata, M. Iwabuchi, M. Bischofberger, Y. Sakai, S. K. Choi, Y. Hoshi, S.I. Eidelman, A. Garmash, K. Inami, M. Starič, V.E. Shebalin, V. Vorobyev, A. Kuzmin, T. Kumita, Y. Unno, K. Hayasaka, K. M. Williams, I. Adachi, A. Chen, V. Bhardwaj, C. Ng, T. Sumiyoshi, S. Ogawa, J. B. Kim, E. Solovieva, Sang Hoon Lee, Yasuyuki Horii, G. B. Mohanty, Yasushi Nagasaka, T. Sanuki, Sunmin Ryu, E. Won, J. Haba, Y. Yusa, J. Libby, S. L. Olsen, A.L. Sibidanov, K. Sakai, Y. B. Hsiung, X. R. Li, T. Iwashita, S. Okuno, Yongsun Kim, S. Uno, C. Schwanda, Y. Teramoto, C. Kiesling, M. Bračko, Samo Stanič, Y. Watanabe, Y. Onuki, and V.M. Aulchenko

Subjects
Physics, Nuclear physics, Particle physics, KEKB, Meson, 010308 nuclear & particles physics, 0103 physical sciences, General Physics and Astronomy, High Energy Physics::Experiment, Vector meson, 010306 general physics, 01 natural sciences
Abstract

The processes γγ → ωϕ, ϕϕ, and ωω are measured using an 870 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. Production of vector meson pairs is clearly observed and their cross sections are measured for masses that range from threshold to 4.0 GeV. In addition to signals from well established spin-zero and spin-two charmonium states, there are resonant structures below charmonium threshold, which have not been previously observed. We report a spin-parity analysis for the new structures and determine the products of the η(c), χ(c0), and χ(c2) two-photon decay widths and branching fractions to ωϕ, ϕϕ, and ωω.

Published
2012

16. Measurement of theCP-Violation Parametersin 2ϕ1with a New Tagging Method at theΥ(5S)Resonance

Author

R. Mizuk, K. T. Kim, Andrey Sokolov, C. Liu, S. K. Choi, B. G. Cheon, W. Ostrowicz, K. Nishimura, H. Kichimi, Marko Petrič, M. Uchida, V. Gaur, G. S. Varner, R. Itoh, P. Wang, M. Nakao, James E. Fast, G. B. Mohanty, H. J. Hyun, T. Kawasaki, I. S. Cho, P. Smerkol, O. Nitoh, T. Sumiyoshi, S. McOnie, H. Nakazawa, E. Nakano, Y. Yusa, Sang Hoon Lee, H. J. Kim, A.E. Bondar, A. J. Schwartz, S. Korpar, B.A. Shwartz, C. Kiesling, T. A. Shibata, H. Miyata, M. Bischofberger, Nagao Kobayashi, D. M. Asner, T. Sanuki, Y. Hoshi, Z. P. Zhang, Z. Doleal, H. O. Kim, J. Stypula, Z. Q. Liu, S.I. Eidelman, C. H. Wang, M. Bračko, L. E. Piilonen, G. Pakhlova, Yukinori Sato, A. Ishikawa, H. K. Park, C. W. Park, H. Sahoo, Y. Yamashita, J. G. Shiu, Vladimir Zhulanov, G. Tatishvili, M. E. Sevior, S. Nishida, J. Dalseno, K. Hayasaka, T. Uglov, Sunmin Ryu, P. Krokovny, T. Aushev, Y. Watanabe, Phillip Urquijo, P. Kapusta, S. Okuno, Satoshi Tanaka, E. Won, K. Cho, T. Julius, Yasuyuki Horii, Kevin Varvell, Po-Hsun Chen, Norihito Muramatsu, R. Chistov, Anze Zupanc, S. K. Kim, D. Epifanov, X. L. Wang, J. Li, H. Aihara, R. Louvot, Y. Teramoto, Bruce Yabsley, R. Seidl, T. Kuhr, A. Kuzmin, Hitoshi Yamamoto, B. R. Ko, Samo Stanič, J. Haba, O. Seon, Frank Simon, T. Iwashita, Y. Onuki, S. Ogawa, V. Bhardwaj, T. K. Pedlar, Tariq Aziz, Y. Sakai, Y. Unno, S. L. Olsen, Yang Li, A. Moll, A. M. Bakich, Z. Natkaniec, T. Ohshima, Y. S. Sohn, Y. Choi, T. Hara, V.N. Zhilich, A.L. Sibidanov, J. B. Kim, P. Chang, Rakesh Kumar, B. Golob, E. Solovieva, K. Senyo, N. Gabyshev, M. Watanabe, B. Bhuyan, Jung-Hyun Kim, P. Krian, V.M. Aulchenko, M. Iwabuchi, T. E. Browder, J. S. Lange, Y. M. Goh, K. Miyabayashi, K. Trabelsi, C. P. Shen, W. S. Hou, J. Wicht, Yongsun Kim, P. Pakhlov, S. Uno, C. Schwanda, H. Park, A. Bozek, M. Sumihama, P. Kody, M. J. Kim, M. Starič, T. Kumita, Y. Iwasaki, Y. J. Kwon, M. Z. Wang, K. Kinoshita, O. Schneider, M. Shapkin, M. Röhrken, K. Chilikin, Anton Poluektov, Z. Drásal, and H. Hayashii

Subjects
Physics, Particle physics, 010308 nuclear & particles physics, media_common.quotation_subject, General Physics and Astronomy, Resonance, Charge (physics), 01 natural sciences, Asymmetry, law.invention, Nuclear physics, KEKB, Pion, law, 0103 physical sciences, CP violation, High Energy Physics::Experiment, B meson, 010306 general physics, Collider, media_common
Abstract

We report a measurement of the CP-violation parameter sin2 phi(1) at the gamma(5S) resonance using a new tagging method, called "B-pi tagging." In gamma(5S) decays containing a neutral B meson, a charged B, and a charged pion, the neutral B is reconstructed in the J/psi K-S(0) CP-eigenstate decay channel. The initial flavor of the neutral B meson at the moment of the gamma(5S) decay is opposite to that of the charged B and may thus be inferred from the charge of the pion without reconstructing the charged B. From the asymmetry between B-pi(+) and B-pi(-) tagged J/psi K-S(0) yields, we determine sin2 phi(1) 0.57 +/- 0.58(stat) +/- 0.06(syst). The results are based on 121 fb(-1) of data recorded by the Belle detector at the KEKB e(+) e(-) collider.

Published
2012

17. Precise Measurement of theCPViolation Parametersin 2ϕ1inB0→(cc¯)K0Decays

Author

R. Mizuk, H. K. Park, Z. Q. Liu, Y. Yamashita, E. Nakano, Yukinori Sato, C. Liu, J. G. Shiu, K. Sumisawa, P. Kapusta, S. Okuno, J. Dalseno, Frank Simon, V. Gaur, M. Nakao, Y. Teramoto, M. Yamauchi, S. McOnie, A. Vinokurova, P. Krokovny, D. Epifanov, Bruce Yabsley, K. Cho, B. R. Ko, O. Nitoh, Norihito Muramatsu, H. J. Kim, M. Rozanska, L. E. Piilonen, K. S. Park, T. K. Pedlar, G. Tatishvili, H. Nakazawa, B. Golob, Y. F. Liu, G. Pakhlova, Satoshi Tanaka, T. Iijima, P. Krian, A.E. Bondar, A. J. Schwartz, P. Pakhlov, M. Starič, T. Kumita, J. S. Lange, V. Bhardwaj, Z. Doleal, B. G. Cheon, Z. P. Zhang, I. Tikhomirov, K. M. Williams, Y. Unno, S. L. Olsen, C. H. Wang, H. O. Kim, T. Julius, S. E. Vahsen, T. Kuhr, A. Kuzmin, G. B. Mohanty, T. Iwashita, Po-Hsun Chen, Y. Sakai, R. Chistov, V.N. Zhilich, A. Bozek, Y. Iwasaki, W. S. Hou, J. Haba, S. Koblitz, M. Röhrken, K. Chilikin, Y. Yusa, H. Ozaki, S. Ogawa, Y. J. Kwon, S. Korpar, Anze Zupanc, S. Neubauer, K. T. Kim, S. Uehara, K. Miyabayashi, O. Schneider, K. Senyo, B. Bhuyan, M. Watanabe, J. B. Singh, N. Katayama, S. K. Choi, Kevin Varvell, V. Vorobyev, Marko Petrič, T. E. Browder, H. J. Hyun, P. Smerkol, T. Sumiyoshi, Y. B. Hsiung, Tariq Aziz, Yang Li, T. Kawasaki, E. Solovieva, Jung-Hyun Kim, Yongsun Kim, Sang Hoon Lee, A. Garmash, S. Uno, Y. Choi, I. Adachi, A. Ishikawa, A. Bay, T. Hara, R. Pestotnik, T. Mori, H. Aihara, B.A. Shwartz, M. Danilov, T. Higuchi, Z. Drásal, C. Schwanda, D. Matvienko, Y. Miyazaki, J. B. Kim, T. Sanuki, M. Uchida, Y. M. Goh, K. Hara, D. M. Asner, Y. S. Sohn, E. Won, K. Trabelsi, C. P. Shen, S. Nishida, D. Liventsev, Andrey Sokolov, A.L. Sibidanov, H. Sahoo, T. Uglov, G. S. Varner, Hitoshi Yamamoto, K. Nishimura, T. Aushev, T. A. Shibata, H. Miyata, Rakesh Kumar, M. Bischofberger, Y. Hoshi, S.I. Eidelman, R. Itoh, James E. Fast, M. Iwabuchi, P. Wang, K. Hayasaka, J. Li, Yasuyuki Horii, R. Louvot, K. Sakai, V.E. Shebalin, H. Kichimi, T. Tsuboyama, Anton Poluektov, H. Hayashii, M. Z. Wang, K. Kinoshita, Y. Watanabe, Y. Onuki, V.M. Aulchenko, O. Zyukova, M. Sumihama, P. Kody, Y. Ushiroda, C. Kiesling, M. Bračko, Samo Stanič, A. M. Bakich, T. Ohshima, and N. Gabyshev

Subjects
Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, General Physics and Astronomy, Resonance, 01 natural sciences, law.invention, Nuclear physics, KEKB, law, 0103 physical sciences, CP violation, High Energy Physics::Experiment, B meson, 010306 general physics, Collider
Abstract

We present a precise measurement of the CP violation parameter sin2 phi(1) and the direct CP violation parameter A(f) using the final data sample of 772 x 10(6) B (B) over bar pairs collected at the gamma(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(0), psi(2S)K-S(0), chi K-c1(S)0, or J/psi K-L(0) CP eigenstate an(its flavor is identified from the decay products of the accompanying B meson. From the distribution of proper-time intervals between the two B decays, we obtain the following CP violation parameters: sin2 phi(1) 0.667 +/- 0.023(stat) +/- 0.012(syst) and A(f) = 0.006 +/- 0.016(stat) +/- 0.012(syst).

Published
2012

18. Evidence for the Suppressed DecayB−→DK−,D→K+π−

Author

S. H. Lee, Y. Sakai, Y. Teramoto, H. Farhat, K. Negishi, E. Solovieva, B. Golob, Leo Piilonen, Hiroaki Aihara, M. Bračko, Norihito Muramatsu, Toru Iijima, A. Zupanc, I. Adachi, S. E. Vahsen, Andrey Sokolov, I. Jaegle, I. S. Cho, O. Seon, Frank Simon, Kevin Varvell, D. M. Asner, A. M. Bakich, E. Nedelkovska, S. Ganguly, O. Nitoh, V. Zhilich, G. Bonvicini, D. H. Kah, G. Tatishvili, Y. Watanabe, T. Mori, D. Dutta, T. Sanuki, D. Cinabro, G. Schnell, A. J. Schwartz, A. Bala, M. Steder, James E. Fast, J. Li, K. Cho, M. Uchida, H. J. Kim, Y. Choi, Z. Doležal, J. Haba, J. Dalseno, V. Gaur, P. Lukin, M. Shapkin, G. Pakhlova, P. Chang, Semen Eidelman, D. Y. Kim, S. Uno, Pavel Krokovny, T. K. Pedlar, A. Moll, J. B. Kim, M. C. Chang, T. Kuhr, Phillip Urquijo, M. Ritter, T. A. Shibata, S. Esen, O. Schneider, V. Chobanova, S. Okuno, B.A. Shwartz, H. Sahoo, Y. S. Sohn, R. Gillard, M. Starič, V. Chekelian, D. Liventsev, T. Saito, T. Uglov, P. Vanhoefer, Marko Petrič, K. Trabelsi, H. J. Hyun, Vladimir Zhulanov, C. P. Shen, A.S. Kuzmin, J. G. Shiu, J. Libby, M. E. Sevior, Peter Kodys, B. G. Cheon, A.L. Sibidanov, P. Krishnan, Y. J. Kwon, S. Ogawa, Samo Korpar, H. Miyake, C. Van Hulse, G. Varner, Yasuyuki Horii, Y. Hoshi, M. Nayak, R. Mussa, S. Yashchenko, Tagir Aushev, Y. Onuki, M. N. Wagner, T. Julius, E. Won, M. J. Kim, A. Ishikawa, Y. Yamashita, Torben Ferber, M. Nakao, Yongsun Kim, C. W. Park, Yueh-Feng Liu, C. Schwanda, K. Belous, P. Križan, R. Chistov, T. Kumita, A. Bozek, T. Iwashita, T. E. Browder, Prafulla Kumar Behera, S. Sandilya, N. Gabyshev, D. Červenkov, G. B. Mohanty, R. Mizuk, Y. Yusa, W. S. Hou, E. Kato, Z. Drásal, A. Rostomyan, V. Bhardwaj, P. Pakhlov, Yang Li, B. R. Ko, H. Park, N. K. Nisar, L. Santelj, Y. M. Goh, H. Hayashii, J. Klucar, V. Savinov, C. H. Wang, M. Z. Wang, K. Kinoshita, U. Tamponi, Z. Suzuki, K. M. Williams, A. Chen, Y. Unno, Mikhail Danilov, M. Röhrken, L. Li Gioi, C. Ng, K. Senyo, and Yasushi Nagasaka

Subjects
Physics, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, Analytical chemistry, General Physics and Astronomy, Resonance, 01 natural sciences, Nuclear physics, Pion, 0103 physical sciences, Pi, CP violation, 010306 general physics, Bar (unit)
Abstract

The suppressed decay chain B- -> DK-, D -> K+pi(-), where D indicates a (D) over bar (0) or D-0 state, provides important information on the CP-violating angle phi(3). We measure the ratio R-DK of the decay rates to the favored mode B- -> DK-, D -> K+pi(-) to be R-DK = [1.63(-0.41)(+0.44)(stat)(-0.13)(+0.07)(syst)] x 10(-2), which indicates the first evidence of the signal with a significance of 4.1 sigma. We also measure the asymmetry A(DK) between the charge-conjugate decays to be A(DK) = -0.39(-0.28)(+0.26)(stat)(-0.03)(+0.04)(syst). The results are based on the full 772 x 10(6) B (B) over bar pair data sample collected at the Gamma(4S) resonance with the Belle detector.

Published
2011

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