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Title: Search for an H -Dibaryon with a Mass near 2 m Λ in Υ(1S) and Υ(2S) Decays

Abstract

We report the results of a high-statistics search for H-dibaryon production in inclusive Y(1S) and Y(2S) decays. No indication of an H-dibaryon with mass near the MH=2mΛ threshold is seen in either the H-> Λpπ- or ΛΛ decay channels and 90% confidence level branching-fraction upper limits are set that are between one and two orders of magnitude below the measured branching fractions for inclusive Y(1S) and Y(2S) decays to antideuterons. Since Y(1,2S) decays produce flavor-SU(3)-symmetric final states, these results put stringent constraints on H-dibaryon properties. The results are based on analyses of 102 million Y(1S) and 158 million Y(2S) events collected with the Belle detector at the KEKB electron-positron collider.

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:
1594517
Alternate Identifier(s):
OSTI ID: 1102776
Report Number(s):
PNNL-SA-98991
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US2101585
Grant/Contract Number:  
SC0009973
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 110; Journal Issue: 22; 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

Citation Formats

Kim, B. H., Olsen, S. L., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Bay, A., Belous, K., Bhuyan, B., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, I. -S., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Doležal, Z., Eidelman, S., Epifanov, D., Esen, S., Farhat, H., Fast, J. E., Gaur, V., Ganguly, S., Gillard, R., Goh, Y. M., Hayasaka, K., Hayashii, H., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Hyun, H. J., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, Y., Julius, T., Kah, D. H., Kang, J. H., Kapusta, P., Kato, E., Kichimi, H., Kim, H. J., Kim, H. O., Kim, J. H., Kim, K. T., Kim, M. J., Kim, S. K., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Kouzes, R. T., Križan, P., Krokovny, P., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, J., Li, X., Li, Y., Libby, J., Liventsev, D., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Muramatsu, N., Mussa, R., Nakano, E., Nakao, M., Nedelkovska, E., Ng, C., Nisar, N. K., Nishida, S., Nishimura, K., Ohshima, T., Okuno, S., Pakhlov, P., Pakhlova, G., Park, H., Park, H. K., Peters, M., Petrič, M., Piilonen, L. E., Ritter, M., Ryu, S., Sahoo, H., Sakai, Y., Sandilya, S., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Smerkol, P., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Sumihama, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Usov, Y., Van Hulse, C., Varner, G., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, P., Watanabe, Y., Williams, K. M., Won, E., Yamashita, Y., Zhilich, V., and Zupanc, A. Search for an H -Dibaryon with a Mass near 2mΛ in Υ(1S) and Υ(2S) Decays. United States: N. p., 2013. Web. doi:10.1103/PhysRevLett.110.222002.
Kim, B. H., Olsen, S. L., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Bay, A., Belous, K., Bhuyan, B., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, I. -S., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Doležal, Z., Eidelman, S., Epifanov, D., Esen, S., Farhat, H., Fast, J. E., Gaur, V., Ganguly, S., Gillard, R., Goh, Y. M., Hayasaka, K., Hayashii, H., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Hyun, H. J., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, Y., Julius, T., Kah, D. H., Kang, J. H., Kapusta, P., Kato, E., Kichimi, H., Kim, H. J., Kim, H. O., Kim, J. H., Kim, K. T., Kim, M. J., Kim, S. K., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Kouzes, R. T., Križan, P., Krokovny, P., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, J., Li, X., Li, Y., Libby, J., Liventsev, D., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Muramatsu, N., Mussa, R., Nakano, E., Nakao, M., Nedelkovska, E., Ng, C., Nisar, N. K., Nishida, S., Nishimura, K., Ohshima, T., Okuno, S., Pakhlov, P., Pakhlova, G., Park, H., Park, H. K., Peters, M., Petrič, M., Piilonen, L. E., Ritter, M., Ryu, S., Sahoo, H., Sakai, Y., Sandilya, S., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Smerkol, P., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Sumihama, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Usov, Y., Van Hulse, C., Varner, G., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, P., Watanabe, Y., Williams, K. M., Won, E., Yamashita, Y., Zhilich, V., & Zupanc, A. Search for an H -Dibaryon with a Mass near 2mΛ in Υ(1S) and Υ(2S) Decays. United States. https://doi.org/10.1103/PhysRevLett.110.222002
Kim, B. H., Olsen, S. L., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Bay, A., Belous, K., Bhuyan, B., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, I. -S., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Doležal, Z., Eidelman, S., Epifanov, D., Esen, S., Farhat, H., Fast, J. E., Gaur, V., Ganguly, S., Gillard, R., Goh, Y. M., Hayasaka, K., Hayashii, H., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Hyun, H. J., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, Y., Julius, T., Kah, D. H., Kang, J. H., Kapusta, P., Kato, E., Kichimi, H., Kim, H. J., Kim, H. O., Kim, J. H., Kim, K. T., Kim, M. J., Kim, S. K., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Kouzes, R. T., Križan, P., Krokovny, P., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, J., Li, X., Li, Y., Libby, J., Liventsev, D., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Muramatsu, N., Mussa, R., Nakano, E., Nakao, M., Nedelkovska, E., Ng, C., Nisar, N. K., Nishida, S., Nishimura, K., Ohshima, T., Okuno, S., Pakhlov, P., Pakhlova, G., Park, H., Park, H. K., Peters, M., Petrič, M., Piilonen, L. E., Ritter, M., Ryu, S., Sahoo, H., Sakai, Y., Sandilya, S., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Smerkol, P., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Sumihama, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Usov, Y., Van Hulse, C., Varner, G., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, P., Watanabe, Y., Williams, K. M., Won, E., Yamashita, Y., Zhilich, V., and Zupanc, A. Fri . "Search for an H -Dibaryon with a Mass near 2mΛ in Υ(1S) and Υ(2S) Decays". United States. https://doi.org/10.1103/PhysRevLett.110.222002. https://www.osti.gov/servlets/purl/1594517.
@article{osti_1594517,
title = {Search for an H -Dibaryon with a Mass near 2mΛ in Υ(1S) and Υ(2S) Decays},
author = {Kim, B. H. and Olsen, S. L. and Adachi, I. and Aihara, H. and Asner, D. M. and Aulchenko, V. and Bay, A. and Belous, K. and Bhuyan, B. and Bonvicini, G. and Bozek, A. and Bračko, M. and Browder, T. E. and Chekelian, V. and Chen, A. and Cheon, B. G. and Chilikin, K. and Chistov, R. and Cho, I. -S. and Cho, K. and Chobanova, V. and Choi, S. -K. and Choi, Y. and Cinabro, D. and Dalseno, J. and Doležal, Z. and Eidelman, S. and Epifanov, D. and Esen, S. and Farhat, H. and Fast, J. E. and Gaur, V. and Ganguly, S. and Gillard, R. and Goh, Y. M. and Hayasaka, K. and Hayashii, H. and Hoshi, Y. and Hou, W. -S. and Hsiung, Y. B. and Hyun, H. J. and Inami, K. and Ishikawa, A. and Itoh, R. and Iwasaki, Y. and Julius, T. and Kah, D. H. and Kang, J. H. and Kapusta, P. and Kato, E. and Kichimi, H. and Kim, H. J. and Kim, H. O. and Kim, J. H. and Kim, K. T. and Kim, M. J. and Kim, S. K. and Kim, Y. J. and Kinoshita, K. and Klucar, J. and Ko, B. R. and Kodyš, P. and Korpar, S. and Kouzes, R. T. and Križan, P. and Krokovny, P. and Kumita, T. and Kuzmin, A. and Kwon, Y. -J. and Lange, J. S. and Lee, S. -H. and Li, J. and Li, X. and Li, Y. and Libby, J. and Liventsev, D. and Matvienko, D. and Miyabayashi, K. and Miyata, H. and Mizuk, R. and Mohanty, G. B. and Moll, A. and Muramatsu, N. and Mussa, R. and Nakano, E. and Nakao, M. and Nedelkovska, E. and Ng, C. and Nisar, N. K. and Nishida, S. and Nishimura, K. and Ohshima, T. and Okuno, S. and Pakhlov, P. and Pakhlova, G. and Park, H. and Park, H. K. and Peters, M. and Petrič, M. and Piilonen, L. E. and Ritter, M. and Ryu, S. and Sahoo, H. and Sakai, Y. and Sandilya, S. and Sanuki, T. and Savinov, V. and Schneider, O. and Schnell, G. and Schwanda, C. and Schwartz, A. J. and Semmler, D. and Senyo, K. and Seon, O. and Sevior, M. E. and Shapkin, M. and Shebalin, V. and Shen, C. P. and Shibata, T. -A. and Shiu, J. -G. and Shwartz, B. and Simon, F. and Smerkol, P. and Sohn, Y. -S. and Sokolov, A. and Solovieva, E. and Stanič, S. and Starič, M. and Sumihama, M. and Sumiyoshi, T. and Tamponi, U. and Tanida, K. and Tatishvili, G. and Teramoto, Y. and Trabelsi, K. and Uchida, M. and Uehara, S. and Uglov, T. and Unno, Y. and Uno, S. and Usov, Y. and Van Hulse, C. and Varner, G. and Vorobyev, V. and Wagner, M. N. and Wang, C. H. and Wang, P. and Watanabe, Y. and Williams, K. M. and Won, E. and Yamashita, Y. and Zhilich, V. and Zupanc, A.},
abstractNote = {We report the results of a high-statistics search for H-dibaryon production in inclusive Y(1S) and Y(2S) decays. No indication of an H-dibaryon with mass near the MH=2mΛ threshold is seen in either the H-> Λpπ- or ΛΛ decay channels and 90% confidence level branching-fraction upper limits are set that are between one and two orders of magnitude below the measured branching fractions for inclusive Y(1S) and Y(2S) decays to antideuterons. Since Y(1,2S) decays produce flavor-SU(3)-symmetric final states, these results put stringent constraints on H-dibaryon properties. The results are based on analyses of 102 million Y(1S) and 158 million Y(2S) events collected with the Belle detector at the KEKB electron-positron collider.},
doi = {10.1103/PhysRevLett.110.222002},
journal = {Physical Review Letters},
number = 22,
volume = 110,
place = {United States},
year = {Fri May 31 00:00:00 EDT 2013},
month = {Fri May 31 00:00:00 EDT 2013}
}

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