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Title: Evidence of a New Narrow Resonance Decaying to χ c 1 γ in B χ c 1 γ K

Abstract

We report measurements of B χ c 1 γ K and χ c 2 γ K decays using 772 × 10 6 B B ¯ events collected at the Υ ( 4 S ) resonance with the Belle detector at the KEKB asymmetric-energy e + e - collider. Evidence of a new resonance in the χ c 1 γ final state is found with a statistical significance of 3.8 σ . This state has a mass of 3823.1 ± 1.8 ( stat ) ± 0.7 ( syst ) MeV / c 2 , a value that is consistent with theoretical expectations for the previously unseen 1 D 2 3 c c ¯ meson. We find no other narrow resonance and set upper limits on the branching fractions of the X ( 3872 ) χ c 1 γ and χ c 2 γ decays.

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:
1594519
Alternate Identifier(s):
OSTI ID: 1103722
Grant/Contract Number:  
SC0009973
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 111; Journal Issue: 3; 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

Bhardwaj, V., Miyabayashi, K., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Aziz, T., Bakich, A. M., Bala, A., Bhuyan, B., Bischofberger, M., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, D., Dutta, K., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Frey, A., Gaur, V., Gabyshev, N., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayashii, H., Horii, Y., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Hyun, H. J., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwashita, T., Julius, T., Kah, D. H., Kang, J. H., Kato, E., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, J., Li, Y., Liu, C., Liu, Z. Q., Liventsev, D., Lukin, P., Matvienko, D., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Mussa, R., Nakano, E., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Olsen, S. L., Pakhlov, P., Pakhlova, G., Panzenböck, E., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Sahoo, H., Saito, T., Sakai, K., Sakai, Y., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seidl, R., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Singh, J. B., Smerkol, P., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Steder, M., Sumihama, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Urquijo, P., Usov, Y., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Vinokurova, A., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Watanabe, Y., Won, E., Yabsley, B. D., Yamaoka, J., Yamashita, Y., Yashchenko, S., Yook, Y., Yuan, C. Z., Zhang, C. C., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A. Evidence of a New Narrow Resonance Decaying to χc1γ in B→χc1γK. United States: N. p., 2013. Web. doi:10.1103/PhysRevLett.111.032001.
Bhardwaj, V., Miyabayashi, K., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Aziz, T., Bakich, A. M., Bala, A., Bhuyan, B., Bischofberger, M., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, D., Dutta, K., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Frey, A., Gaur, V., Gabyshev, N., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayashii, H., Horii, Y., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Hyun, H. J., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwashita, T., Julius, T., Kah, D. H., Kang, J. H., Kato, E., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, J., Li, Y., Liu, C., Liu, Z. Q., Liventsev, D., Lukin, P., Matvienko, D., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Mussa, R., Nakano, E., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Olsen, S. L., Pakhlov, P., Pakhlova, G., Panzenböck, E., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Sahoo, H., Saito, T., Sakai, K., Sakai, Y., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seidl, R., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Singh, J. B., Smerkol, P., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Steder, M., Sumihama, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Urquijo, P., Usov, Y., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Vinokurova, A., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Watanabe, Y., Won, E., Yabsley, B. D., Yamaoka, J., Yamashita, Y., Yashchenko, S., Yook, Y., Yuan, C. Z., Zhang, C. C., Zhang, Z. P., Zhilich, V., Zhulanov, V., & Zupanc, A. Evidence of a New Narrow Resonance Decaying to χc1γ in B→χc1γK. United States. doi:10.1103/PhysRevLett.111.032001.
Bhardwaj, V., Miyabayashi, K., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Aziz, T., Bakich, A. M., Bala, A., Bhuyan, B., Bischofberger, M., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, D., Dutta, K., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Frey, A., Gaur, V., Gabyshev, N., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayashii, H., Horii, Y., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Hyun, H. J., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwashita, T., Julius, T., Kah, D. H., Kang, J. H., Kato, E., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, J., Li, Y., Liu, C., Liu, Z. Q., Liventsev, D., Lukin, P., Matvienko, D., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Mussa, R., Nakano, E., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Olsen, S. L., Pakhlov, P., Pakhlova, G., Panzenböck, E., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Sahoo, H., Saito, T., Sakai, K., Sakai, Y., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seidl, R., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Singh, J. B., Smerkol, P., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Steder, M., Sumihama, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Urquijo, P., Usov, Y., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Vinokurova, A., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Watanabe, Y., Won, E., Yabsley, B. D., Yamaoka, J., Yamashita, Y., Yashchenko, S., Yook, Y., Yuan, C. Z., Zhang, C. C., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A. Tue . "Evidence of a New Narrow Resonance Decaying to χc1γ in B→χc1γK". United States. doi:10.1103/PhysRevLett.111.032001. https://www.osti.gov/servlets/purl/1594519.
@article{osti_1594519,
title = {Evidence of a New Narrow Resonance Decaying to χc1γ in B→χc1γK},
author = {Bhardwaj, V. and Miyabayashi, K. and Adachi, I. and Aihara, H. and Asner, D. M. and Aulchenko, V. and Aushev, T. and Aziz, T. and Bakich, A. M. and Bala, A. and Bhuyan, B. and Bischofberger, M. and Bondar, A. and Bonvicini, G. and Bozek, A. and Bračko, M. and Brodzicka, J. and Browder, T. E. and Chekelian, V. and Chen, A. and Cheon, B. G. and Chilikin, K. and Chistov, R. and Cho, K. and Chobanova, V. and Choi, S. -K. and Choi, Y. and Cinabro, D. and Dalseno, J. and Danilov, M. and Doležal, Z. and Drásal, Z. and Drutskoy, A. and Dutta, D. and Dutta, K. and Eidelman, S. and Epifanov, D. and Farhat, H. and Fast, J. E. and Ferber, T. and Frey, A. and Gaur, V. and Gabyshev, N. and Ganguly, S. and Gillard, R. and Goh, Y. M. and Golob, B. and Haba, J. and Hara, T. and Hayashii, H. and Horii, Y. and Hoshi, Y. and Hou, W. -S. and Hsiung, Y. B. and Hyun, H. J. and Iijima, T. and Inami, K. and Ishikawa, A. and Itoh, R. and Iwashita, T. and Julius, T. and Kah, D. H. and Kang, J. H. and Kato, E. and Kawasaki, T. and Kichimi, H. and Kiesling, C. and Kim, D. Y. and Kim, J. B. and Kim, J. H. and Kim, K. T. and Kim, M. J. and Kim, Y. J. and Kinoshita, K. and Klucar, J. and Ko, B. R. and Kodyš, P. and Korpar, S. and Križan, P. and Krokovny, P. 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 Liventsev, D. and Lukin, P. and Matvienko, D. and Miyata, H. and Mizuk, R. and Mohanty, G. B. and Moll, A. and Mussa, R. and Nakano, E. and Nakao, M. and Natkaniec, Z. and Nayak, M. and Nedelkovska, E. and Nisar, N. K. and Nishida, S. and Nitoh, O. and Ogawa, S. and Okuno, S. and Olsen, S. L. and Pakhlov, P. and Pakhlova, G. and Panzenböck, E. and Park, H. and Park, H. K. and Pedlar, T. K. and Pestotnik, R. and Petrič, M. and Piilonen, L. E. and Ritter, M. and Röhrken, M. and Rostomyan, A. and Sahoo, H. and Saito, T. and Sakai, K. and Sakai, Y. and Sandilya, S. and Santel, D. and Santelj, L. and Sanuki, T. and Sato, Y. and Savinov, V. and Schneider, O. and Schnell, G. and Schwanda, C. and Seidl, R. and Semmler, D. 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 Simon, F. and Singh, J. B. and Smerkol, P. and Sohn, Y. -S. and Sokolov, A. and Solovieva, E. and Starič, M. and Steder, M. and Sumihama, M. and Sumiyoshi, T. and Tamponi, U. and Tanida, K. and Tatishvili, G. and Teramoto, Y. and Trabelsi, K. and Tsuboyama, T. and Uchida, M. and Uehara, S. and Uglov, T. and Unno, Y. and Urquijo, P. and Usov, Y. and Vahsen, S. E. and Van Hulse, C. and Vanhoefer, P. and Varner, G. and Varvell, K. E. and Vinokurova, A. and Wagner, M. N. and Wang, C. H. and Wang, M. -Z. and Wang, P. and Watanabe, M. and Watanabe, Y. and Won, E. and Yabsley, B. D. and Yamaoka, J. and Yamashita, Y. and Yashchenko, S. and Yook, Y. and Yuan, C. Z. and Zhang, C. C. and Zhang, Z. P. and Zhilich, V. and Zhulanov, V. and Zupanc, A.},
abstractNote = {We report measurements of B→χc1γK and χc2γK decays using 772×106 BB¯ events collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. Evidence of a new resonance in the χc1γ final state is found with a statistical significance of 3.8σ. This state has a mass of 3823.1±1.8(stat)±0.7(syst) MeV/c2, a value that is consistent with theoretical expectations for the previously unseen 1D23 cc¯ meson. We find no other narrow resonance and set upper limits on the branching fractions of the X(3872)→χc1γ and χc2γ decays.},
doi = {10.1103/PhysRevLett.111.032001},
journal = {Physical Review Letters},
number = 3,
volume = 111,
place = {United States},
year = {2013},
month = {7}
}

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