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Title: Measurement of the CP-Violation Parameter sin2Φ₁ with a New Tagging Method at the Υ(5S) Resonance

Abstract

We report a measurement of the CP-violation parameter sin2Φ₁ at the Υ(5S) resonance using a new tagging method, called “B-π tagging.” In Υ(5S) decays containing a neutral B meson, a charged B, and a charged pion, the neutral B is reconstructed in the J/ψK0SCP-eigenstate decay channel. The initial flavor of the neutral B meson at the moment of the Υ(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-π⁺ and Bπ⁻ tagged J/ψK0S yields, we determine sin2Φ₁=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.

Authors:
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Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1098790
Resource Type:
Publisher's Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Name: Physical Review Letters Journal Volume: 108 Journal Issue: 17; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English

Citation Formats

Sato, Y., Yamamoto, H., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Aziz, T., Bakich, A. M., Bhardwaj, V., Bhuyan, B., Bischofberger, M., Bondar, A., Bozek, A., Bračko, M., Browder, T. E., Chang, P., Chen, P., Cheon, B. G., Chilikin, K., Chistov, R., Cho, I.-S., Cho, K., Choi, S.-K., Choi, Y., Dalseno, J., Doležal, Z., Drásal, Z., Eidelman, S., Epifanov, D., Fast, J. E., Gaur, V., Gabyshev, N., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Horii, Y., Hoshi, Y., Hou, W.-S., Hyun, H. J., Ishikawa, A., Itoh, R., Iwabuchi, M., Iwasaki, Y., Iwashita, T., Julius, T., Kapusta, P., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, H. J., Kim, H. O., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kim, S. K., Kim, Y. J., Kinoshita, K., Ko, B. R., Kobayashi, N., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y.-J., Lange, J. S., Lee, S.-H., Li, J., Li, Y., Liu, C., Liu, Z. Q., Louvot, R., McOnie, S., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Muramatsu, N., Nakano, E., Nakao, M., Nakazawa, H., Natkaniec, Z., Nishida, S., Nishimura, K., Nitoh, O., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S. L., Onuki, Y., Ostrowicz, W., Pakhlov, P., Pakhlova, G., Park, C. W., Park, H., Park, H. K., Pedlar, T. K., Petrič, M., Piilonen, L. E., Poluektov, A., Röhrken, M., Ryu, S., Sahoo, H., Sakai, Y., Sanuki, T., Schneider, O., Schwanda, C., Schwartz, A. J., Seidl, R., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T.-A., Shiu, J.-G., Shwartz, B., Sibidanov, A., Simon, F., Smerkol, P., Sohn, Y.-S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Stypula, J., Sumihama, M., Sumiyoshi, T., Tanaka, S., Tatishvili, G., Teramoto, Y., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Varner, G., Varvell, K. E., Wang, C. H., Wang, M.-Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Wicht, J., Won, E., Yabsley, B. D., Yamashita, Y., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A. Measurement of the CP-Violation Parameter sin2Φ₁ with a New Tagging Method at the Υ(5S) Resonance. United States: N. p., 2012. Web. doi:10.1103/PhysRevLett.108.171801.
Sato, Y., Yamamoto, H., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Aziz, T., Bakich, A. M., Bhardwaj, V., Bhuyan, B., Bischofberger, M., Bondar, A., Bozek, A., Bračko, M., Browder, T. E., Chang, P., Chen, P., Cheon, B. G., Chilikin, K., Chistov, R., Cho, I.-S., Cho, K., Choi, S.-K., Choi, Y., Dalseno, J., Doležal, Z., Drásal, Z., Eidelman, S., Epifanov, D., Fast, J. E., Gaur, V., Gabyshev, N., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Horii, Y., Hoshi, Y., Hou, W.-S., Hyun, H. J., Ishikawa, A., Itoh, R., Iwabuchi, M., Iwasaki, Y., Iwashita, T., Julius, T., Kapusta, P., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, H. J., Kim, H. O., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kim, S. K., Kim, Y. J., Kinoshita, K., Ko, B. R., Kobayashi, N., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y.-J., Lange, J. S., Lee, S.-H., Li, J., Li, Y., Liu, C., Liu, Z. Q., Louvot, R., McOnie, S., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Muramatsu, N., Nakano, E., Nakao, M., Nakazawa, H., Natkaniec, Z., Nishida, S., Nishimura, K., Nitoh, O., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S. L., Onuki, Y., Ostrowicz, W., Pakhlov, P., Pakhlova, G., Park, C. W., Park, H., Park, H. K., Pedlar, T. K., Petrič, M., Piilonen, L. E., Poluektov, A., Röhrken, M., Ryu, S., Sahoo, H., Sakai, Y., Sanuki, T., Schneider, O., Schwanda, C., Schwartz, A. J., Seidl, R., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T.-A., Shiu, J.-G., Shwartz, B., Sibidanov, A., Simon, F., Smerkol, P., Sohn, Y.-S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Stypula, J., Sumihama, M., Sumiyoshi, T., Tanaka, S., Tatishvili, G., Teramoto, Y., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Varner, G., Varvell, K. E., Wang, C. H., Wang, M.-Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Wicht, J., Won, E., Yabsley, B. D., Yamashita, Y., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., & Zupanc, A. Measurement of the CP-Violation Parameter sin2Φ₁ with a New Tagging Method at the Υ(5S) Resonance. United States. https://doi.org/10.1103/PhysRevLett.108.171801
Sato, Y., Yamamoto, H., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Aziz, T., Bakich, A. M., Bhardwaj, V., Bhuyan, B., Bischofberger, M., Bondar, A., Bozek, A., Bračko, M., Browder, T. E., Chang, P., Chen, P., Cheon, B. G., Chilikin, K., Chistov, R., Cho, I.-S., Cho, K., Choi, S.-K., Choi, Y., Dalseno, J., Doležal, Z., Drásal, Z., Eidelman, S., Epifanov, D., Fast, J. E., Gaur, V., Gabyshev, N., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Horii, Y., Hoshi, Y., Hou, W.-S., Hyun, H. J., Ishikawa, A., Itoh, R., Iwabuchi, M., Iwasaki, Y., Iwashita, T., Julius, T., Kapusta, P., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, H. J., Kim, H. O., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kim, S. K., Kim, Y. J., Kinoshita, K., Ko, B. R., Kobayashi, N., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y.-J., Lange, J. S., Lee, S.-H., Li, J., Li, Y., Liu, C., Liu, Z. Q., Louvot, R., McOnie, S., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Muramatsu, N., Nakano, E., Nakao, M., Nakazawa, H., Natkaniec, Z., Nishida, S., Nishimura, K., Nitoh, O., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S. L., Onuki, Y., Ostrowicz, W., Pakhlov, P., Pakhlova, G., Park, C. W., Park, H., Park, H. K., Pedlar, T. K., Petrič, M., Piilonen, L. E., Poluektov, A., Röhrken, M., Ryu, S., Sahoo, H., Sakai, Y., Sanuki, T., Schneider, O., Schwanda, C., Schwartz, A. J., Seidl, R., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T.-A., Shiu, J.-G., Shwartz, B., Sibidanov, A., Simon, F., Smerkol, P., Sohn, Y.-S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Stypula, J., Sumihama, M., Sumiyoshi, T., Tanaka, S., Tatishvili, G., Teramoto, Y., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Varner, G., Varvell, K. E., Wang, C. H., Wang, M.-Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Wicht, J., Won, E., Yabsley, B. D., Yamashita, Y., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A. Mon . "Measurement of the CP-Violation Parameter sin2Φ₁ with a New Tagging Method at the Υ(5S) Resonance". United States. https://doi.org/10.1103/PhysRevLett.108.171801.
@article{osti_1098790,
title = {Measurement of the CP-Violation Parameter sin2Φ₁ with a New Tagging Method at the Υ(5S) Resonance},
author = {Sato, Y. and Yamamoto, H. and Aihara, H. and Asner, D. M. and Aulchenko, V. and Aushev, T. and Aziz, T. and Bakich, A. M. and Bhardwaj, V. and Bhuyan, B. and Bischofberger, M. and Bondar, A. and Bozek, A. and Bračko, M. and Browder, T. E. and Chang, P. and Chen, P. and Cheon, B. G. and Chilikin, K. and Chistov, R. and Cho, I.-S. and Cho, K. and Choi, S.-K. and Choi, Y. and Dalseno, J. and Doležal, Z. and Drásal, Z. and Eidelman, S. and Epifanov, D. and Fast, J. E. and Gaur, V. and Gabyshev, N. and Goh, Y. M. and Golob, B. and Haba, J. and Hara, T. and Hayasaka, K. and Hayashii, H. and Horii, Y. and Hoshi, Y. and Hou, W.-S. and Hyun, H. J. and Ishikawa, A. and Itoh, R. and Iwabuchi, M. and Iwasaki, Y. and Iwashita, T. and Julius, T. and Kapusta, P. and Kawasaki, T. and Kichimi, H. and Kiesling, C. and Kim, H. J. and Kim, H. O. and Kim, J. B. and Kim, J. H. and Kim, K. T. and Kim, M. J. and Kim, S. K. and Kim, Y. J. and Kinoshita, K. and Ko, B. R. and Kobayashi, N. and Kodyš, P. and Korpar, S. and Križan, P. and Krokovny, P. and Kuhr, T. and Kumar, R. and Kumita, T. and Kuzmin, A. and Kwon, Y.-J. and Lange, J. S. and Lee, S.-H. and Li, J. and Li, Y. and Liu, C. and Liu, Z. Q. and Louvot, R. and McOnie, S. and Miyabayashi, K. and Miyata, H. and Mizuk, R. and Mohanty, G. B. and Moll, A. and Muramatsu, N. and Nakano, E. and Nakao, M. and Nakazawa, H. and Natkaniec, Z. and Nishida, S. and Nishimura, K. and Nitoh, O. and Ogawa, S. and Ohshima, T. and Okuno, S. and Olsen, S. L. and Onuki, Y. and Ostrowicz, W. and Pakhlov, P. and Pakhlova, G. and Park, C. W. and Park, H. and Park, H. K. and Pedlar, T. K. and Petrič, M. and Piilonen, L. E. and Poluektov, A. and Röhrken, M. and Ryu, S. and Sahoo, H. and Sakai, Y. and Sanuki, T. and Schneider, O. and Schwanda, C. and Schwartz, A. J. and Seidl, R. and Senyo, K. and Seon, O. and Sevior, M. E. and Shapkin, M. and Shen, C. P. and Shibata, T.-A. and Shiu, J.-G. and Shwartz, B. and Sibidanov, A. and Simon, F. and Smerkol, P. and Sohn, Y.-S. and Sokolov, A. and Solovieva, E. and Stanič, S. and Starič, M. and Stypula, J. and Sumihama, M. and Sumiyoshi, T. and Tanaka, S. and Tatishvili, G. and Teramoto, Y. and Trabelsi, K. and Uchida, M. and Uglov, T. and Unno, Y. and Uno, S. and Urquijo, P. and Varner, G. and Varvell, K. E. and Wang, C. H. and Wang, M.-Z. and Wang, P. and Wang, X. L. and Watanabe, M. and Watanabe, Y. and Wicht, J. and Won, E. and Yabsley, B. D. and Yamashita, Y. and Yusa, Y. and Zhang, Z. P. and Zhilich, V. and Zhulanov, V. and Zupanc, A.},
abstractNote = {We report a measurement of the CP-violation parameter sin2Φ₁ at the Υ(5S) resonance using a new tagging method, called “B-π tagging.” In Υ(5S) decays containing a neutral B meson, a charged B, and a charged pion, the neutral B is reconstructed in the J/ψK0SCP-eigenstate decay channel. The initial flavor of the neutral B meson at the moment of the Υ(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-π⁺ and Bπ⁻ tagged J/ψK0S yields, we determine sin2Φ₁=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.},
doi = {10.1103/PhysRevLett.108.171801},
journal = {Physical Review Letters},
number = 17,
volume = 108,
place = {United States},
year = {Mon Apr 23 00:00:00 EDT 2012},
month = {Mon Apr 23 00:00:00 EDT 2012}
}

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https://doi.org/10.1103/PhysRevLett.108.171801

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