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Title: Evidence for B + h c K + and observation of η c ( 2 S ) p p ¯ π + π

Abstract

A search for the decays B + → h cK + and B 0 → h cK$$^0_S$$ is performed. Evidence for the decay B + → h cK + is found; its significance is 4.8σ. No evidence is found for B 0 → h cK$$^0_S$$. The branching fraction for B + → h cK + is measured to be (3.7$$^{+1.0}_{-0.9}$$$^{+0.8}_{-0.8}$$)×10 -5 ; the upper limit for the B 0 → h cK$$^0_S$$ branching fraction is 1.4 × 10 -5 at 90% C.L. In addition, a study of the $$p\bar{p} $$π +π - invariant mass distribution in the channel B + → ($$p\bar{p} $$π +π -)K + results in the first observation of the decay η c(2S) → $$p\bar{p} $$π +π - with 12.1σ significance. The analysis is based on the 711 fb -1 data sample collected by the Belle detector at the asymmetric-energy e +e - collider KEKB at the Υ(4S) resonance.

Authors:
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Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); National Science Foundation (NSF); KEK, High Energy Accelerator Research Organization; Ministry of Education, Culture, Sports, Science and Technology
Contributing Org.:
Belle Collaboration
OSTI Identifier:
1532807
Alternate Identifier(s):
OSTI ID: 1542773
Report Number(s):
BNL-211874-2019-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ
Grant/Contract Number:  
SC0012704
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 100; Journal Issue: 1; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Chilikin, K., Adachi, I., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bansal, V., Behera, P., Beleño, C., Berger, M., Bhardwaj, V., Bilka, T., Biswal, J., Bobrov, A., Bondar, A., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Cao, L., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Cho, K., Choi, S. -K., Choi, Y., Cinabro, D., Cunliffe, S., Di Carlo, S., Doležal, Z., Dong, T. V., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Grzymkowska, O., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hou, W. -S., Hsu, C. -L., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Julius, T., Kaliyar, A. B., Karyan, G., Kato, Y., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Kroeger, R., Krokovny, P., Kulasiri, R., Kumar, R., Kwon, Y. -J., Lalwani, K., Lange, J. S., Lee, J. K., Lee, J. Y., Lee, S. C., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Liventsev, D., Lu, P. -C., Luo, T., MacNaughton, J., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mori, T., Nakao, M., Nath, K. J., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ono, H., Onuki, Y., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Ritter, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shen, C. P., Shiu, J. -G., Shwartz, B., Simon, F., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Strube, J. F., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uno, S., Urquijo, P., Usov, Y., Van Tonder, R., Varner, G., Vinokurova, A., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Watanuki, S., Won, E., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yuan, C. Z., Zhang, J., Zhang, Z. P., Zhilich, V., and Zhukova, V. Evidence for B+→hcK+ and observation of ηc(2S)→pp¯π+π−. United States: N. p., 2019. Web. doi:10.1103/PhysRevD.100.012001.
Chilikin, K., Adachi, I., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bansal, V., Behera, P., Beleño, C., Berger, M., Bhardwaj, V., Bilka, T., Biswal, J., Bobrov, A., Bondar, A., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Cao, L., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Cho, K., Choi, S. -K., Choi, Y., Cinabro, D., Cunliffe, S., Di Carlo, S., Doležal, Z., Dong, T. V., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Grzymkowska, O., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hou, W. -S., Hsu, C. -L., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Julius, T., Kaliyar, A. B., Karyan, G., Kato, Y., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Kroeger, R., Krokovny, P., Kulasiri, R., Kumar, R., Kwon, Y. -J., Lalwani, K., Lange, J. S., Lee, J. K., Lee, J. Y., Lee, S. C., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Liventsev, D., Lu, P. -C., Luo, T., MacNaughton, J., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mori, T., Nakao, M., Nath, K. J., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ono, H., Onuki, Y., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Ritter, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shen, C. P., Shiu, J. -G., Shwartz, B., Simon, F., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Strube, J. F., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uno, S., Urquijo, P., Usov, Y., Van Tonder, R., Varner, G., Vinokurova, A., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Watanuki, S., Won, E., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yuan, C. Z., Zhang, J., Zhang, Z. P., Zhilich, V., & Zhukova, V. Evidence for B+→hcK+ and observation of ηc(2S)→pp¯π+π−. United States. doi:10.1103/PhysRevD.100.012001.
Chilikin, K., Adachi, I., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bansal, V., Behera, P., Beleño, C., Berger, M., Bhardwaj, V., Bilka, T., Biswal, J., Bobrov, A., Bondar, A., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Cao, L., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Cho, K., Choi, S. -K., Choi, Y., Cinabro, D., Cunliffe, S., Di Carlo, S., Doležal, Z., Dong, T. V., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Grzymkowska, O., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hou, W. -S., Hsu, C. -L., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Julius, T., Kaliyar, A. B., Karyan, G., Kato, Y., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Kroeger, R., Krokovny, P., Kulasiri, R., Kumar, R., Kwon, Y. -J., Lalwani, K., Lange, J. S., Lee, J. K., Lee, J. Y., Lee, S. C., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Liventsev, D., Lu, P. -C., Luo, T., MacNaughton, J., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mori, T., Nakao, M., Nath, K. J., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ono, H., Onuki, Y., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Ritter, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shen, C. P., Shiu, J. -G., Shwartz, B., Simon, F., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Strube, J. F., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uno, S., Urquijo, P., Usov, Y., Van Tonder, R., Varner, G., Vinokurova, A., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Watanuki, S., Won, E., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yuan, C. Z., Zhang, J., Zhang, Z. P., Zhilich, V., and Zhukova, V. Wed . "Evidence for B+→hcK+ and observation of ηc(2S)→pp¯π+π−". United States. doi:10.1103/PhysRevD.100.012001.
@article{osti_1532807,
title = {Evidence for B+→hcK+ and observation of ηc(2S)→pp¯π+π−},
author = {Chilikin, K. and Adachi, I. and Asner, D. M. and Aulchenko, V. and Aushev, T. and Ayad, R. and Babu, V. and Badhrees, I. and Bansal, V. and Behera, P. and Beleño, C. and Berger, M. and Bhardwaj, V. and Bilka, T. and Biswal, J. and Bobrov, A. and Bondar, A. and Bozek, A. and Bračko, M. and Browder, T. E. and Campajola, M. and Cao, L. and Červenkov, D. and Chekelian, V. and Chen, A. and Cheon, B. G. and Cho, K. and Choi, S. -K. and Choi, Y. and Cinabro, D. and Cunliffe, S. and Di Carlo, S. and Doležal, Z. and Dong, T. V. and Eidelman, S. and Epifanov, D. and Fast, J. E. and Ferber, T. and Fulsom, B. G. and Garg, R. and Gaur, V. and Gabyshev, N. and Garmash, A. and Gelb, M. and Giri, A. and Goldenzweig, P. and Grzymkowska, O. and Haba, J. and Hara, T. and Hayasaka, K. and Hayashii, H. and Hou, W. -S. and Hsu, C. -L. and Inami, K. and Ishikawa, A. and Itoh, R. and Iwasaki, M. and Iwasaki, Y. and Jacobs, W. W. and Jia, S. and Jin, Y. and Joffe, D. and Joo, K. K. and Julius, T. and Kaliyar, A. B. and Karyan, G. and Kato, Y. and Kiesling, C. and Kim, C. H. and Kim, D. Y. and Kim, S. H. and Kinoshita, K. and Kodyš, P. and Korpar, S. and Kotchetkov, D. and Kroeger, R. and Krokovny, P. and Kulasiri, R. and Kumar, R. and Kwon, Y. -J. and Lalwani, K. and Lange, J. S. and Lee, J. K. and Lee, J. Y. and Lee, S. C. and Li, L. K. and Li, Y. B. and Li Gioi, L. and Libby, J. and Liventsev, D. and Lu, P. -C. and Luo, T. and MacNaughton, J. and MacQueen, C. and Masuda, M. and Matsuda, T. and Matvienko, D. and Merola, M. and Miyabayashi, K. and Mizuk, R. and Mohanty, G. B. and Mori, T. and Nakao, M. and Nath, K. J. and Nayak, M. and Niiyama, M. and Nisar, N. K. and Nishida, S. and Nishimura, K. and Ono, H. and Onuki, Y. and Pakhlov, P. and Pakhlova, G. and Pal, B. and Pardi, S. and Park, H. and Patra, S. and Paul, S. and Pedlar, T. K. and Pestotnik, R. and Piilonen, L. E. and Popov, V. and Ritter, M. and Rostomyan, A. and Russo, G. and Sakai, Y. and Salehi, M. and Sandilya, S. and Sanuki, T. and Savinov, V. and Schneider, O. and Schnell, G. and Schwanda, C. and Seino, Y. and Senyo, K. and Sevior, M. E. and Shen, C. P. and Shiu, J. -G. and Shwartz, B. and Simon, F. and Sokolov, A. and Solovieva, E. and Starič, M. and Stottler, Z. S. and Strube, J. F. and Sumiyoshi, T. and Sutcliffe, W. and Takizawa, M. and Tamponi, U. and Tanida, K. and Tenchini, F. and Trabelsi, K. and Uchida, M. and Uno, S. and Urquijo, P. and Usov, Y. and Van Tonder, R. and Varner, G. and Vinokurova, A. and Wang, B. and Wang, C. H. and Wang, M. -Z. and Wang, P. and Watanabe, M. and Watanuki, S. and Won, E. and Yang, S. B. and Ye, H. and Yelton, J. and Yin, J. H. and Yuan, C. Z. and Zhang, J. and Zhang, Z. P. and Zhilich, V. and Zhukova, V.},
abstractNote = {A search for the decays B+ → hcK+ and B0 → hcK$^0_S$ is performed. Evidence for the decay B+ → hcK+ is found; its significance is 4.8σ. No evidence is found for B0 → hcK$^0_S$. The branching fraction for B+ → hcK+ is measured to be (3.7$^{+1.0}_{-0.9}$$^{+0.8}_{-0.8}$)×10-5 ; the upper limit for the B0 → hcK$^0_S$ branching fraction is 1.4 × 10-5 at 90% C.L. In addition, a study of the $p\bar{p} $π+π- invariant mass distribution in the channel B+ → ($p\bar{p} $π+π-)K+ results in the first observation of the decay ηc(2S) → $p\bar{p} $π+π- with 12.1σ significance. The analysis is based on the 711 fb-1 data sample collected by the Belle detector at the asymmetric-energy e+e- collider KEKB at the Υ(4S) resonance.},
doi = {10.1103/PhysRevD.100.012001},
journal = {Physical Review D},
number = 1,
volume = 100,
place = {United States},
year = {2019},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
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DOI: 10.1103/PhysRevD.100.012001

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