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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+ → 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.

Authors:
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Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States); Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States); Univ. of Hawaii, Honolulu, HI (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP); 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; OSTI ID: 1568057; OSTI ID: 1593795
Report Number(s):
BNL-211874-2019-JAAM; PNNL-SA-147473
Journal ID: ISSN 2470-0010; PRVDAQ; 012001
Grant/Contract Number:  
SC0012704; AC05-76RL01830; SC0009973; SC0010504
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D 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; Belle Collaboration; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

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., Zhukova, V., and Belle Collaboration. Evidence for B + → h c K + and observation of η c ( 2 S ) → p p ¯ 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., & Belle Collaboration. Evidence for B + → h c K + and observation of η c ( 2 S ) → p p ¯ 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., Zhukova, V., and Belle Collaboration. Wed . "Evidence for B + → h c K + and observation of η c ( 2 S ) → p p ¯ π + π −". United States. doi:10.1103/PhysRevD.100.012001.
@article{osti_1532807,
title = {Evidence for B + → h c K + and observation of η c ( 2 S ) → p p ¯ 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. and Belle Collaboration},
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

Figures / Tables:

FIG. 1 FIG. 1: Projections of the resolution fit results onto $ΔE$ and $M$bc for the channel $B$+ → $h$c$K$+ with $h$c → $η$c(→ $K$+$K$$π$0)$γ$. The red solid line is the fit result, the green dashed line is the Crystal Ball component, the blue dotted line is the first Gaussian component, andmore » the brown dash-dotted line is the second Gaussian component.« less

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    Works referencing / citing this record:

    Evidence for $B^ + → h_ c K^ +$ and observation of $η_c ( 2 S ) → p \bar{p} π + π −$
    text, January 2019