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Title: Measurements of time-dependent CP asymmetries in B→D *∓π ± decays using a partial reconstruction technique

Abstract

We report results on time-dependent CP asymmetries in B→D *∓π ± decays based on a data sample containing 657×10⁶ BB¯ pairs collected with the Belle detector at the KEKB asymmetric-energy e⁺e⁻ collider at the Υ(4S) resonance. We use a partial reconstruction technique, wherein signal B→D *∓π ± events are identified using information only from the fast pion from the B decay and the slow pion from the subsequent decay of the D *∓, where the former (latter) corresponds to D*⁺(D*⁻) final states. We obtain CP violation parameters S⁺=+0.061±0.018 (stat)±0.012 (syst) and S⁻=+0.031±0.019 (stat)±0.015 (syst).

Authors:
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Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1099735
Resource Type:
Publisher's Accepted Manuscript
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Name: Physical Review. D, Particles, Fields, Gravitation and Cosmology Journal Volume: 84 Journal Issue: 2; Journal ID: ISSN 1550-7998
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English

Citation Formats

Bahinipati, S., Trabelsi, K., Kinoshita, K., Arinstein, K., Aulchenko, V., Aushev, T., Bakich, A. M., Balagura, V., Barberio, E., Belous, K., Bhardwaj, V., Bhuyan, B., Bischofberger, M., Bondar, A., Bozek, A., Bračko, M., Chen, A., Chen, P., Cheon, B. G., Chiang, C.-C., Cho, I.-S., Cho, K., Choi, Y., Dalseno, J., Doležal, Z., Drásal, Z., Eidelman, S., Gabyshev, N., Golob, B., Ha, H., Horii, Y., Hoshi, Y., Hou, W.-S., Hsiung, Y. B., Hyun, H. J., Ishikawa, A., Iwabuchi, M., Iwasaki, Y., Iwashita, T., Julius, T., Kang, J. H., Kiesling, C., Kim, H. J., Kim, M. J., Ko, B. R., Kobayashi, N., Kodyš, P., Križan, P., Kumita, T., Kwon, Y.-J., Kyeong, S.-H., Lange, J. S., Lee, M. J., Lee, S.-H., Li, J., Liu, C., Louvot, R., Matyja, A., McOnie, S., Miyabayashi, K., Miyata, H., Miyazaki, Y., Mohanty, G. B., Nakao, M., Natkaniec, Z., Neubauer, S., Nishida, S., Nitoh, O., Ogawa, S., Ohshima, T., Pakhlov, P., Park, C. W., Petrič, M., Piilonen, L. E., Poluektov, A., Röhrken, M., Sahoo, H., Sakai, Y., Schneider, O., Schwanda, C., Schwartz, A. J., Sevior, M. E., Shapkin, M., Shen, C. P., Shiu, J.-G., Smerkol, P., Sohn, Y.-S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Sumisawa, K., Sumiyoshi, T., Tanaka, S., Teramoto, Y., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Varner, G., Vinokurova, A., Wang, C. H., Won, E., Yabsley, B. D., Yamashita, Y., Zhang, C. C., Zhang, Z. P., Zhou, P., Zivko, T., and Zupanc, A.. Measurements of time-dependent CP asymmetries in B→D*∓π± decays using a partial reconstruction technique. United States: N. p., 2011. Web. doi:10.1103/PhysRevD.84.021101.
Bahinipati, S., Trabelsi, K., Kinoshita, K., Arinstein, K., Aulchenko, V., Aushev, T., Bakich, A. M., Balagura, V., Barberio, E., Belous, K., Bhardwaj, V., Bhuyan, B., Bischofberger, M., Bondar, A., Bozek, A., Bračko, M., Chen, A., Chen, P., Cheon, B. G., Chiang, C.-C., Cho, I.-S., Cho, K., Choi, Y., Dalseno, J., Doležal, Z., Drásal, Z., Eidelman, S., Gabyshev, N., Golob, B., Ha, H., Horii, Y., Hoshi, Y., Hou, W.-S., Hsiung, Y. B., Hyun, H. J., Ishikawa, A., Iwabuchi, M., Iwasaki, Y., Iwashita, T., Julius, T., Kang, J. H., Kiesling, C., Kim, H. J., Kim, M. J., Ko, B. R., Kobayashi, N., Kodyš, P., Križan, P., Kumita, T., Kwon, Y.-J., Kyeong, S.-H., Lange, J. S., Lee, M. J., Lee, S.-H., Li, J., Liu, C., Louvot, R., Matyja, A., McOnie, S., Miyabayashi, K., Miyata, H., Miyazaki, Y., Mohanty, G. B., Nakao, M., Natkaniec, Z., Neubauer, S., Nishida, S., Nitoh, O., Ogawa, S., Ohshima, T., Pakhlov, P., Park, C. W., Petrič, M., Piilonen, L. E., Poluektov, A., Röhrken, M., Sahoo, H., Sakai, Y., Schneider, O., Schwanda, C., Schwartz, A. J., Sevior, M. E., Shapkin, M., Shen, C. P., Shiu, J.-G., Smerkol, P., Sohn, Y.-S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Sumisawa, K., Sumiyoshi, T., Tanaka, S., Teramoto, Y., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Varner, G., Vinokurova, A., Wang, C. H., Won, E., Yabsley, B. D., Yamashita, Y., Zhang, C. C., Zhang, Z. P., Zhou, P., Zivko, T., & Zupanc, A.. Measurements of time-dependent CP asymmetries in B→D*∓π± decays using a partial reconstruction technique. United States. doi:10.1103/PhysRevD.84.021101.
Bahinipati, S., Trabelsi, K., Kinoshita, K., Arinstein, K., Aulchenko, V., Aushev, T., Bakich, A. M., Balagura, V., Barberio, E., Belous, K., Bhardwaj, V., Bhuyan, B., Bischofberger, M., Bondar, A., Bozek, A., Bračko, M., Chen, A., Chen, P., Cheon, B. G., Chiang, C.-C., Cho, I.-S., Cho, K., Choi, Y., Dalseno, J., Doležal, Z., Drásal, Z., Eidelman, S., Gabyshev, N., Golob, B., Ha, H., Horii, Y., Hoshi, Y., Hou, W.-S., Hsiung, Y. B., Hyun, H. J., Ishikawa, A., Iwabuchi, M., Iwasaki, Y., Iwashita, T., Julius, T., Kang, J. H., Kiesling, C., Kim, H. J., Kim, M. J., Ko, B. R., Kobayashi, N., Kodyš, P., Križan, P., Kumita, T., Kwon, Y.-J., Kyeong, S.-H., Lange, J. S., Lee, M. J., Lee, S.-H., Li, J., Liu, C., Louvot, R., Matyja, A., McOnie, S., Miyabayashi, K., Miyata, H., Miyazaki, Y., Mohanty, G. B., Nakao, M., Natkaniec, Z., Neubauer, S., Nishida, S., Nitoh, O., Ogawa, S., Ohshima, T., Pakhlov, P., Park, C. W., Petrič, M., Piilonen, L. E., Poluektov, A., Röhrken, M., Sahoo, H., Sakai, Y., Schneider, O., Schwanda, C., Schwartz, A. J., Sevior, M. E., Shapkin, M., Shen, C. P., Shiu, J.-G., Smerkol, P., Sohn, Y.-S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Sumisawa, K., Sumiyoshi, T., Tanaka, S., Teramoto, Y., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Varner, G., Vinokurova, A., Wang, C. H., Won, E., Yabsley, B. D., Yamashita, Y., Zhang, C. C., Zhang, Z. P., Zhou, P., Zivko, T., and Zupanc, A.. Tue . "Measurements of time-dependent CP asymmetries in B→D*∓π± decays using a partial reconstruction technique". United States. doi:10.1103/PhysRevD.84.021101.
@article{osti_1099735,
title = {Measurements of time-dependent CP asymmetries in B→D*∓π± decays using a partial reconstruction technique},
author = {Bahinipati, S. and Trabelsi, K. and Kinoshita, K. and Arinstein, K. and Aulchenko, V. and Aushev, T. and Bakich, A. M. and Balagura, V. and Barberio, E. and Belous, K. and Bhardwaj, V. and Bhuyan, B. and Bischofberger, M. and Bondar, A. and Bozek, A. and Bračko, M. and Chen, A. and Chen, P. and Cheon, B. G. and Chiang, C.-C. and Cho, I.-S. and Cho, K. and Choi, Y. and Dalseno, J. and Doležal, Z. and Drásal, Z. and Eidelman, S. and Gabyshev, N. and Golob, B. and Ha, H. and Horii, Y. and Hoshi, Y. and Hou, W.-S. and Hsiung, Y. B. and Hyun, H. J. and Ishikawa, A. and Iwabuchi, M. and Iwasaki, Y. and Iwashita, T. and Julius, T. and Kang, J. H. and Kiesling, C. and Kim, H. J. and Kim, M. J. and Ko, B. R. and Kobayashi, N. and Kodyš, P. and Križan, P. and Kumita, T. and Kwon, Y.-J. and Kyeong, S.-H. and Lange, J. S. and Lee, M. J. and Lee, S.-H. and Li, J. and Liu, C. and Louvot, R. and Matyja, A. and McOnie, S. and Miyabayashi, K. and Miyata, H. and Miyazaki, Y. and Mohanty, G. B. and Nakao, M. and Natkaniec, Z. and Neubauer, S. and Nishida, S. and Nitoh, O. and Ogawa, S. and Ohshima, T. and Pakhlov, P. and Park, C. W. and Petrič, M. and Piilonen, L. E. and Poluektov, A. and Röhrken, M. and Sahoo, H. and Sakai, Y. and Schneider, O. and Schwanda, C. and Schwartz, A. J. and Sevior, M. E. and Shapkin, M. and Shen, C. P. and Shiu, J.-G. and Smerkol, P. and Sohn, Y.-S. and Sokolov, A. and Solovieva, E. and Stanič, S. and Starič, M. and Sumisawa, K. and Sumiyoshi, T. and Tanaka, S. and Teramoto, Y. and Uchida, M. and Uehara, S. and Uglov, T. and Unno, Y. and Uno, S. and Varner, G. and Vinokurova, A. and Wang, C. H. and Won, E. and Yabsley, B. D. and Yamashita, Y. and Zhang, C. C. and Zhang, Z. P. and Zhou, P. and Zivko, T. and Zupanc, A.},
abstractNote = {We report results on time-dependent CP asymmetries in B→D*∓π± decays based on a data sample containing 657×10⁶ BB¯ pairs collected with the Belle detector at the KEKB asymmetric-energy e⁺e⁻ collider at the Υ(4S) resonance. We use a partial reconstruction technique, wherein signal B→D*∓π± events are identified using information only from the fast pion from the B decay and the slow pion from the subsequent decay of the D*∓, where the former (latter) corresponds to D*⁺(D*⁻) final states. We obtain CP violation parameters S⁺=+0.061±0.018 (stat)±0.012 (syst) and S⁻=+0.031±0.019 (stat)±0.015 (syst).},
doi = {10.1103/PhysRevD.84.021101},
journal = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},
number = 2,
volume = 84,
place = {United States},
year = {2011},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
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DOI: 10.1103/PhysRevD.84.021101

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