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Title: Observation of the Decay B s 0 → K 0 K ¯ 0

Abstract

We measure the decay B$$^{0}_{s}$$ → K0K¯0 using data collected at the Υ(5S) resonance with the Belle detector at the KEKB e+e– collider. The data sample used corresponds to an integrated luminosity of 121.4 fb–1. We measure a branching fraction B(B$$^{0}_{s}$$ → K0K¯0) = [19.6$$^{+5.8}_{–5.1}$$(stat.) ± 1.0(sys.)±2.0(NB$$^{0}_{s}$$B¯$$^{0}_{s}$$)]×10–6 with a significance of 5.1 standard deviations. Here, this measurement constitutes the first observation of this decay.

Authors:
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Publication Date:
Research Org.:
Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Org.:
Belle Collaboration
OSTI Identifier:
1594393
Alternate Identifier(s):
OSTI ID: 1248070
Grant/Contract Number:  
SC0009973
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 116; Journal Issue: 16; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Hadronic decays; Bottom mesons, Kaons

Citation Formats

Pal, B., Schwartz, A. J., Abdesselam, A., Adachi, I., Aihara, H., Asner, D. M., Aushev, T., Ayad, R., Aziz, T., Babu, V., Badhrees, I., Bahinipati, S., Bakich, A. M., Barberio, E., Behera, P., Bhardwaj, V., Bhuyan, B., Biswal, J., Bobrov, A., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chistov, R., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dalseno, J., Dash, N., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, D., Eidelman, S., Farhat, H., Fast, J. E., Fulsom, B. G., Gaur, V., Garmash, A., Gillard, R., Goh, Y. M., Goldenzweig, P., Greenwald, D., Grzymkowska, O., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., He, X. H., Hou, W. -S., Inami, K., Ishikawa, A., Iwasaki, Y., Jacobs, W. W., Jaegle, I., Jeon, H. B., Joffe, D., Joo, K. K., Julius, T., Kang, K. H., Kato, E., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, K. T., Kim, M. J., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lee, I. S., Li, C. H., Li, H., Li, L., Li Gioi, L., Libby, J., Liventsev, D., Lukin, P., Luo, T., Masuda, M., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mohanty, S., Moll, A., Moon, H. K., Mori, T., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Natkaniec, Z., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, S., Okuno, S., Pakhlov, P., Pakhlova, G., Park, C. W., Park, H., Paul, S., Pedlar, T. K., Pesántez, L., Pestotnik, R., Petrič, M., Piilonen, L. E., Pulvermacher, C., Rauch, J., Ribežl, E., Ritter, M., Rostomyan, A., Ryu, S., Sahoo, H., Sakai, Y., Sandilya, S., Sanuki, T., Sato, Y., Savinov, V., Schlüter, T., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Seong, I. S., Shebalin, V., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Stypula, J., Sumihama, M., Sumiyoshi, T., Tamponi, U., Teramoto, Y., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Uno, S., Urquijo, P., Usov, Y., Van Hulse, C., Vanhoefer, P., Varner, G., Vinokurova, A., Vossen, A., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, X. L., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yamaoka, J., Yelton, J., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A. Observation of the Decay Bs0→K0K¯0. United States: N. p., 2016. Web. doi:10.1103/PhysRevLett.116.161801.
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Pal, B., Schwartz, A. J., Abdesselam, A., Adachi, I., Aihara, H., Asner, D. M., Aushev, T., Ayad, R., Aziz, T., Babu, V., Badhrees, I., Bahinipati, S., Bakich, A. M., Barberio, E., Behera, P., Bhardwaj, V., Bhuyan, B., Biswal, J., Bobrov, A., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chistov, R., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dalseno, J., Dash, N., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, D., Eidelman, S., Farhat, H., Fast, J. E., Fulsom, B. G., Gaur, V., Garmash, A., Gillard, R., Goh, Y. M., Goldenzweig, P., Greenwald, D., Grzymkowska, O., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., He, X. H., Hou, W. -S., Inami, K., Ishikawa, A., Iwasaki, Y., Jacobs, W. W., Jaegle, I., Jeon, H. B., Joffe, D., Joo, K. K., Julius, T., Kang, K. H., Kato, E., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, K. T., Kim, M. J., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lee, I. S., Li, C. H., Li, H., Li, L., Li Gioi, L., Libby, J., Liventsev, D., Lukin, P., Luo, T., Masuda, M., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mohanty, S., Moll, A., Moon, H. K., Mori, T., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Natkaniec, Z., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, S., Okuno, S., Pakhlov, P., Pakhlova, G., Park, C. W., Park, H., Paul, S., Pedlar, T. K., Pesántez, L., Pestotnik, R., Petrič, M., Piilonen, L. E., Pulvermacher, C., Rauch, J., Ribežl, E., Ritter, M., Rostomyan, A., Ryu, S., Sahoo, H., Sakai, Y., Sandilya, S., Sanuki, T., Sato, Y., Savinov, V., Schlüter, T., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Seong, I. S., Shebalin, V., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Stypula, J., Sumihama, M., Sumiyoshi, T., Tamponi, U., Teramoto, Y., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Uno, S., Urquijo, P., Usov, Y., Van Hulse, C., Vanhoefer, P., Varner, G., Vinokurova, A., Vossen, A., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, X. L., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yamaoka, J., Yelton, J., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., & Zupanc, A. Observation of the Decay Bs0→K0K¯0. United States. https://doi.org/10.1103/PhysRevLett.116.161801
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Pal, B., Schwartz, A. J., Abdesselam, A., Adachi, I., Aihara, H., Asner, D. M., Aushev, T., Ayad, R., Aziz, T., Babu, V., Badhrees, I., Bahinipati, S., Bakich, A. M., Barberio, E., Behera, P., Bhardwaj, V., Bhuyan, B., Biswal, J., Bobrov, A., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chistov, R., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dalseno, J., Dash, N., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, D., Eidelman, S., Farhat, H., Fast, J. E., Fulsom, B. G., Gaur, V., Garmash, A., Gillard, R., Goh, Y. M., Goldenzweig, P., Greenwald, D., Grzymkowska, O., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., He, X. H., Hou, W. -S., Inami, K., Ishikawa, A., Iwasaki, Y., Jacobs, W. W., Jaegle, I., Jeon, H. B., Joffe, D., Joo, K. K., Julius, T., Kang, K. H., Kato, E., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, K. T., Kim, M. J., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lee, I. S., Li, C. H., Li, H., Li, L., Li Gioi, L., Libby, J., Liventsev, D., Lukin, P., Luo, T., Masuda, M., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mohanty, S., Moll, A., Moon, H. K., Mori, T., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Natkaniec, Z., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, S., Okuno, S., Pakhlov, P., Pakhlova, G., Park, C. W., Park, H., Paul, S., Pedlar, T. K., Pesántez, L., Pestotnik, R., Petrič, M., Piilonen, L. E., Pulvermacher, C., Rauch, J., Ribežl, E., Ritter, M., Rostomyan, A., Ryu, S., Sahoo, H., Sakai, Y., Sandilya, S., Sanuki, T., Sato, Y., Savinov, V., Schlüter, T., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Seong, I. S., Shebalin, V., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Stypula, J., Sumihama, M., Sumiyoshi, T., Tamponi, U., Teramoto, Y., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Uno, S., Urquijo, P., Usov, Y., Van Hulse, C., Vanhoefer, P., Varner, G., Vinokurova, A., Vossen, A., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, X. L., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yamaoka, J., Yelton, J., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A. Tue . "Observation of the Decay Bs0→K0K¯0". United States. https://doi.org/10.1103/PhysRevLett.116.161801. https://www.osti.gov/servlets/purl/1594393.
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@article{osti_1594393,
title = {Observation of the Decay Bs0→K0K¯0},
author = {Pal, B. and Schwartz, A. J. and Abdesselam, A. and Adachi, I. and Aihara, H. and Asner, D. M. and Aushev, T. and Ayad, R. and Aziz, T. and Babu, V. and Badhrees, I. and Bahinipati, S. and Bakich, A. M. and Barberio, E. and Behera, P. and Bhardwaj, V. and Bhuyan, B. and Biswal, J. and Bobrov, A. and Bozek, A. and Bračko, M. and Browder, T. E. and Červenkov, D. and Chekelian, V. and Chen, A. and Cheon, B. G. and Chistov, R. and Cho, K. and Chobanova, V. and Choi, Y. and Cinabro, D. and Dalseno, J. and Dash, N. and Doležal, Z. and Drásal, Z. and Drutskoy, A. and Dutta, D. and Eidelman, S. and Farhat, H. and Fast, J. E. and Fulsom, B. G. and Gaur, V. and Garmash, A. and Gillard, R. and Goh, Y. M. and Goldenzweig, P. and Greenwald, D. and Grzymkowska, O. and Haba, J. and Hara, T. and Hayasaka, K. and Hayashii, H. and He, X. H. and Hou, W. -S. and Inami, K. and Ishikawa, A. and Iwasaki, Y. and Jacobs, W. W. and Jaegle, I. and Jeon, H. B. and Joffe, D. and Joo, K. K. and Julius, T. and Kang, K. H. and Kato, E. and Kawasaki, T. and Kiesling, C. and Kim, D. Y. and Kim, H. J. and Kim, K. T. and Kim, M. J. and Kim, S. H. and Kinoshita, K. 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 Lee, I. S. and Li, C. H. and Li, H. and Li, L. and Li Gioi, L. and Libby, J. and Liventsev, D. and Lukin, P. and Luo, T. and Masuda, M. and Matvienko, D. and Miyabayashi, K. and Miyata, H. and Mizuk, R. and Mohanty, G. B. and Mohanty, S. and Moll, A. and Moon, H. K. and Mori, T. and Mussa, R. and Nakano, E. and Nakao, M. and Nanut, T. and Natkaniec, Z. and Nayak, M. and Nisar, N. K. and Nishida, S. and Ogawa, S. and Okuno, S. and Pakhlov, P. and Pakhlova, G. and Park, C. W. and Park, H. and Paul, S. and Pedlar, T. K. and Pesántez, L. and Pestotnik, R. and Petrič, M. and Piilonen, L. E. and Pulvermacher, C. and Rauch, J. and Ribežl, E. and Ritter, M. and Rostomyan, A. and Ryu, S. and Sahoo, H. and Sakai, Y. and Sandilya, S. and Sanuki, T. and Sato, Y. and Savinov, V. and Schlüter, T. and Schneider, O. and Schnell, G. and Schwanda, C. and Seino, Y. and Senyo, K. and Seon, O. and Seong, I. S. and Shebalin, V. and Shibata, T. -A. and Shiu, J. -G. and Shwartz, B. and Simon, F. 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 Tamponi, U. and Teramoto, Y. and Trabelsi, K. and Uchida, M. and Uehara, S. and Uglov, T. and Uno, S. and Urquijo, P. and Usov, Y. and Van Hulse, C. and Vanhoefer, P. and Varner, G. and Vinokurova, A. and Vossen, A. and Wagner, M. N. and Wang, C. H. and Wang, M. -Z. and Wang, X. L. and Watanabe, M. and Watanabe, Y. and Williams, K. M. and Won, E. and Yamaoka, J. and Yelton, J. and Yuan, C. Z. and Yusa, Y. and Zhang, Z. P. and Zhilich, V. and Zhulanov, V. and Zupanc, A.},
abstractNote = {We measure the decay B$^{0}_{s}$ → K0K¯0 using data collected at the Υ(5S) resonance with the Belle detector at the KEKB e+e– collider. The data sample used corresponds to an integrated luminosity of 121.4 fb–1. We measure a branching fraction B(B$^{0}_{s}$ → K0K¯0) = [19.6$^{+5.8}_{–5.1}$(stat.) ± 1.0(sys.)±2.0(NB$^{0}_{s}$B¯$^{0}_{s}$)]×10–6 with a significance of 5.1 standard deviations. Here, this measurement constitutes the first observation of this decay.},
doi = {10.1103/PhysRevLett.116.161801},
journal = {Physical Review Letters},
number = 16,
volume = 116,
place = {United States},
year = {2016},
month = {4}
}
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