Abstract
We present measurements of CP-violating parameters in B0(B0) → η′ KS0 and B± → η′ K± decays based on a 41.8 fb-1 data sample collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We fully reconstruct one neutral B meson as a B0(B0) → η′ KS0 CP eigenstate and identify the flavor of the accompanying B from its decay products. From the distribution of proper time intervals between pairs of B meson decay points, we obtain the CP-violating asymmetry parameters Sη′ KS0 = 0.28 ± 0.55(stat)-0.08+0.07(syst), and Aη′ KS0 = 0.13 ± 0.32(stat)-0.06+0.09(syst). We also reconstruct charged B± → η′ K± decays and determine a direct-CP-violating asymmetry value of Aη′ K± = (-1.5 ± 7.0(stat) ± 0.9(syst))%.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 196-205 |
| Number of pages | 10 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 546 |
| Issue number | 3-4 |
| DOIs | |
| State | Published - Oct 24 2002 |
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
Keywords
- B decays
- CP violations
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Measurement of CP-violating parameters in B → η′ K decays. / Chen, K. F.; Hara, K.; Abe, K.; Abe, K.; Abe, T.; Adachi, I.; Byoung, S. A.; Aihara, H.; Akatsu, M.; Asano, Y.; Aso, T.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Ban, Y.; Bay, A.; Bedny, I.; Behera, P. K.; Bizjak, I.; Bondar, A.; Bozek, A.; Bračko, M.; Brodzicka, J.; Browder, T. E.; Casey, B. C.K.; Chang, P.; Chao, Y.; Cheon, B. G.; Chistov, R.; Choi, S. K.; Choi, Y.; Choi, Y. K.; Danilov, M.; Dong, L. Y.; Dragic, J.; Eidelman, S.; Eiges, V.; Enari, Y.; Fang, F.; Fukunaga, C.; Gabyshev, N.; Garmash, A.; Gershon, T.; Golob, B.; Gordon, A.; Guo, R.; Haba, J.; Hanagaki, K.; Handa, F.; Hara, T.; Hastings, N. C.; Hayashii, H.; Hazumi, M.; Heenan, E. M.; Higuchi, I.; Higuchi, T.; Hinz, L.; Hoshi, Y.; Hou, W. S.; Hsiung, Y. B.; Hsu, S. C.; Huang, H. C.; Igaki, T.; Igarashi, Y.; Iijima, T.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwasaki, H.; Iwasaki, Y.; Jang, H. K.; Kang, J. H.; Kang, J. S.; Katayama, N.; Kawai, H.; Kawakami, Y.; Kawamura, N.; Kichimi, H.; Kim, D. W.; Heejong, K.; Kim, H. J.; Hyunwoo, K.; Kim, T. H.; Kinoshita, K.; Korpar, S.; Križan, P.; Krokovny, P.; Kulasiri, R.; Kumar, S.; Kuzmin, A.; Kwon, Y. J.; Lange, J. S.; Leder, G.; Lee, S. H.; Li, J.; Lu, R. S.; MacNaughton, J.; Majumder, G.; Mandl, F.; Marlow, D.; Matsuishi, T.; Matsumoto, S.; Matsumoto, T.; Miyabayashi, K.; Miyabayashi, Y.; Miyata, H.; Moloney, G. R.; Mori, T.; Murakami, A.; Nagamine, T.; Nagasaka, Y.; Nakadaira, T.; Nakano, E.; Nakao, M.; Nam, J. W.; Natkaniec, Z.; Nishida, S.; Nitoh, O.; Noguchi, S.; Ogawa, S.; Ohshima, T.; Okabe, T.; Okuno, S.; Olsen, S. L.; Onuki, Y.; Ostrowicz, W.; Ozaki, H.; Palka, H.; Park, C. W.; Park, H.; Peak, L. S.; Perroud, J. P.; Peters, M.; Piilonen, L. E.; Root, N.; Rozanska, M.; Rybicki, K.; Sagawa, H.; Saitoh, S.; Sakai, Y.; Sakamoto, H.; Satapathy, M.; Satpathy, A.; Schneider, O.; Schrenk, S.; Schwanda, C.; Semenov, S.; Senyo, K.; Seuster, R.; Sevior, M. E.; Shibuya, H.; Shwartz, B.; Singh, J. B.; Soni, N.; Stanic, S.; Starič, M.; Sugi, A.; Sugiyama, A.; Sumisawa, K.; Sumiyoshi, T.; Suzuki, S.; Suzuki, S. Y.; Takahashi, T.; Takasaki, F.; Tamura, N.; Tanaka, J.; Tanaka, M.; Taylor, G. N.; Teramoto, Y.; Tokuda, S.; Tomoto, M.; Tomura, T.; Trabelsi, K.; Trischuk, W.; Tsuboyama, T.; Tsukamoto, T.; Uehara, S.; Ueno, K.; Unno, Y.; Uno, S.; Ushiroda, Y.; Varner, G.; Varvell, K. E.; Wang, C. C.; Wang, C. H.; Wang, J. G.; Wang, M. Z.; Watanabe, Y.; Won, E.; Yabsley, B. D.; Yamada, Y.; Yamaguchi, A.; Yamashita, Y.; Yamauchi, M.; Yanai, H.; Yeh, P.; Yokoyama, M.; Yuan, Y.; Yusa, Y.; Zhang, Z. P.; Zhilich, V.; Žontar, D.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 546, No. 3-4, 24.10.2002, p. 196-205.Research output: Contribution to journal › Article › peer-review
TY - JOUR
T1 - Measurement of CP-violating parameters in B → η′ K decays
AU - Chen, K. F.
AU - Hara, K.
AU - Abe, K.
AU - Abe, K.
AU - Abe, T.
AU - Adachi, I.
AU - Byoung, S. A.
AU - Aihara, H.
AU - Akatsu, M.
AU - Asano, Y.
AU - Aso, T.
AU - Aulchenko, V.
AU - Aushev, T.
AU - Bakich, A. M.
AU - Ban, Y.
AU - Bay, A.
AU - Bedny, I.
AU - Behera, P. K.
AU - Bizjak, I.
AU - Bondar, A.
AU - Bozek, A.
AU - Bračko, M.
AU - Brodzicka, J.
AU - Browder, T. E.
AU - Casey, B. C.K.
AU - Chang, P.
AU - Chao, Y.
AU - Cheon, B. G.
AU - Chistov, R.
AU - Choi, S. K.
AU - Choi, Y.
AU - Choi, Y. K.
AU - Danilov, M.
AU - Dong, L. Y.
AU - Dragic, J.
AU - Eidelman, S.
AU - Eiges, V.
AU - Enari, Y.
AU - Fang, F.
AU - Fukunaga, C.
AU - Gabyshev, N.
AU - Garmash, A.
AU - Gershon, T.
AU - Golob, B.
AU - Gordon, A.
AU - Guo, R.
AU - Haba, J.
AU - Hanagaki, K.
AU - Handa, F.
AU - Hara, T.
AU - Hastings, N. C.
AU - Hayashii, H.
AU - Hazumi, M.
AU - Heenan, E. M.
AU - Higuchi, I.
AU - Higuchi, T.
AU - Hinz, L.
AU - Hoshi, Y.
AU - Hou, W. S.
AU - Hsiung, Y. B.
AU - Hsu, S. C.
AU - Huang, H. C.
AU - Igaki, T.
AU - Igarashi, Y.
AU - Iijima, T.
AU - Inami, K.
AU - Ishikawa, A.
AU - Itoh, R.
AU - Iwasaki, H.
AU - Iwasaki, Y.
AU - Jang, H. K.
AU - Kang, J. H.
AU - Kang, J. S.
AU - Katayama, N.
AU - Kawai, H.
AU - Kawakami, Y.
AU - Kawamura, N.
AU - Kichimi, H.
AU - Kim, D. W.
AU - Heejong, K.
AU - Kim, H. J.
AU - Hyunwoo, K.
AU - Kim, T. H.
AU - Kinoshita, K.
AU - Korpar, S.
AU - Križan, P.
AU - Krokovny, P.
AU - Kulasiri, R.
AU - Kumar, S.
AU - Kuzmin, A.
AU - Kwon, Y. J.
AU - Lange, J. S.
AU - Leder, G.
AU - Lee, S. H.
AU - Li, J.
AU - Lu, R. S.
AU - MacNaughton, J.
AU - Majumder, G.
AU - Mandl, F.
AU - Marlow, D.
AU - Matsuishi, T.
AU - Matsumoto, S.
AU - Matsumoto, T.
AU - Miyabayashi, K.
AU - Miyabayashi, Y.
AU - Miyata, H.
AU - Moloney, G. R.
AU - Mori, T.
AU - Murakami, A.
AU - Nagamine, T.
AU - Nagasaka, Y.
AU - Nakadaira, T.
AU - Nakano, E.
AU - Nakao, M.
AU - Nam, J. W.
AU - Natkaniec, Z.
AU - Nishida, S.
AU - Nitoh, O.
AU - Noguchi, S.
AU - Ogawa, S.
AU - Ohshima, T.
AU - Okabe, T.
AU - Okuno, S.
AU - Olsen, S. L.
AU - Onuki, Y.
AU - Ostrowicz, W.
AU - Ozaki, H.
AU - Palka, H.
AU - Park, C. W.
AU - Park, H.
AU - Peak, L. S.
AU - Perroud, J. P.
AU - Peters, M.
AU - Piilonen, L. E.
AU - Root, N.
AU - Rozanska, M.
AU - Rybicki, K.
AU - Sagawa, H.
AU - Saitoh, S.
AU - Sakai, Y.
AU - Sakamoto, H.
AU - Satapathy, M.
AU - Satpathy, A.
AU - Schneider, O.
AU - Schrenk, S.
AU - Schwanda, C.
AU - Semenov, S.
AU - Senyo, K.
AU - Seuster, R.
AU - Sevior, M. E.
AU - Shibuya, H.
AU - Shwartz, B.
AU - Singh, J. B.
AU - Soni, N.
AU - Stanic, S.
AU - Starič, M.
AU - Sugi, A.
AU - Sugiyama, A.
AU - Sumisawa, K.
AU - Sumiyoshi, T.
AU - Suzuki, S.
AU - Suzuki, S. Y.
AU - Takahashi, T.
AU - Takasaki, F.
AU - Tamura, N.
AU - Tanaka, J.
AU - Tanaka, M.
AU - Taylor, G. N.
AU - Teramoto, Y.
AU - Tokuda, S.
AU - Tomoto, M.
AU - Tomura, T.
AU - Trabelsi, K.
AU - Trischuk, W.
AU - Tsuboyama, T.
AU - Tsukamoto, T.
AU - Uehara, S.
AU - Ueno, K.
AU - Unno, Y.
AU - Uno, S.
AU - Ushiroda, Y.
AU - Varner, G.
AU - Varvell, K. E.
AU - Wang, C. C.
AU - Wang, C. H.
AU - Wang, J. G.
AU - Wang, M. Z.
AU - Watanabe, Y.
AU - Won, E.
AU - Yabsley, B. D.
AU - Yamada, Y.
AU - Yamaguchi, A.
AU - Yamashita, Y.
AU - Yamauchi, M.
AU - Yanai, H.
AU - Yeh, P.
AU - Yokoyama, M.
AU - Yuan, Y.
AU - Yusa, Y.
AU - Zhang, Z. P.
AU - Zhilich, V.
AU - Žontar, D.
N1 - Funding Information: We wish to thank the KEKB accelerator group for the excellent operation of the KEKB accelerator. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology of Japan and the Japan Society for the Promotion of Science; the Australian Research Council and the Australian Department of Industry, Science and Resources; the National Science Foundation of China under contract No. 10175071; the Department of Science and Technology of India; the BK21 program of the Ministry of Education of Korea and the CHEP SRC program of the Korea Science and Engineering Foundation; the Polish State Committee for Scientific Research under contract No. 2P03B 17017; the Ministry of Science and Technology of the Russian Federation; the Ministry of Education, Science and Sport of the Republic of Slovenia; the National Science Council and the Ministry of Education of Taiwan; and the US Department of Energy.
PY - 2002/10/24
Y1 - 2002/10/24
N2 - We present measurements of CP-violating parameters in B0(B0) → η′ KS0 and B± → η′ K± decays based on a 41.8 fb-1 data sample collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We fully reconstruct one neutral B meson as a B0(B0) → η′ KS0 CP eigenstate and identify the flavor of the accompanying B from its decay products. From the distribution of proper time intervals between pairs of B meson decay points, we obtain the CP-violating asymmetry parameters Sη′ KS0 = 0.28 ± 0.55(stat)-0.08+0.07(syst), and Aη′ KS0 = 0.13 ± 0.32(stat)-0.06+0.09(syst). We also reconstruct charged B± → η′ K± decays and determine a direct-CP-violating asymmetry value of Aη′ K± = (-1.5 ± 7.0(stat) ± 0.9(syst))%.
AB - We present measurements of CP-violating parameters in B0(B0) → η′ KS0 and B± → η′ K± decays based on a 41.8 fb-1 data sample collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We fully reconstruct one neutral B meson as a B0(B0) → η′ KS0 CP eigenstate and identify the flavor of the accompanying B from its decay products. From the distribution of proper time intervals between pairs of B meson decay points, we obtain the CP-violating asymmetry parameters Sη′ KS0 = 0.28 ± 0.55(stat)-0.08+0.07(syst), and Aη′ KS0 = 0.13 ± 0.32(stat)-0.06+0.09(syst). We also reconstruct charged B± → η′ K± decays and determine a direct-CP-violating asymmetry value of Aη′ K± = (-1.5 ± 7.0(stat) ± 0.9(syst))%.
KW - B decays
KW - CP violations
UR - http://www.scopus.com/inward/record.url?scp=0037167799&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037167799&partnerID=8YFLogxK
U2 - 10.1016/S0370-2693(02)02389-4
DO - 10.1016/S0370-2693(02)02389-4
M3 - Article
AN - SCOPUS:0037167799
VL - 546
SP - 196
EP - 205
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 3-4
ER -