Measurement of the branching fraction and time-dependent C P asymmetry for B 0 → J / ψ π 0 decays

Pal, B.; Schwartz, A. J.; Aihara, H.; Al Said, S.; Asner, D. M.; Atmacan, H.; Aulchenko, V.; Aushev, T.; Ayad, R.; Badhrees, I.; Bahinipati, S.; Bansal, V.; Behera, P.; Beleño, C.; Bhuyan, B.; Bilka, T.; Biswal, J.; Bozek, A.; Bračko, M.; Cao, L.; Červenkov, D.; Chekelian, V.; Chen, A.; Cheon, B. G.; Chilikin, K.; Cho, K.; Choi, Y.; Choudhury, S.; Cinabro, D.; Cunliffe, S.; Dash, N.; Di Carlo, S.; Doležal, Z.; Eidelman, S.; Epifanov, D.; Fast, J. E.; Fulsom, B. G.; Garg, R.; Gaur, V.; Garmash, A.; Gelb, M.; Giri, A.; Goldenzweig, P.; Golob, B.; Guan, Y.; Hara, T.; Hayasaka, K.; Hayashii, H.; Higuchi, T.; Hou, W. -S.; Hsu, C. -L.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Jacobs, W. W.; Jia, S.; Joffe, D.; Julius, T.; Karyan, G.; Kim, D. Y.; Kim, K. T.; Kim, S. H.; Kinoshita, K.; Kodyš, P.; Korpar, S.; Kotchetkov, D.; Križan, P.; Kroeger, R.; Krokovny, P.; Kulasiri, R.; Kumar, R.; Kuzmin, A.; Kwon, Y. -J.; Lalwani, K.; Lee, S. C.; Li, L. K.; Li, Y. B.; Li Gioi, L.; Libby, J.; Lu, P. -C.; Masuda, M.; Matsuda, T.; Matvienko, D.; Merola, M.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Mori, T.; Nakano, E.; Nakao, M.; Nath, K. J.; Natkaniec, Z.; Nayak, M.; Nishida, S.; Ogawa, S.; Ono, H.; Pakhlova, G.; Pardi, S.; Park, H.; Paul, S.; Pedlar, T. K.; Pestotnik, R.; Piilonen, L. E.; Popov, V.; Prencipe, E.; Purohit, M. V.; Ritter, M.; Russo, G.; Sahoo, D.; Sakai, Y.; Sandilya, S.; Santelj, L.; Sanuki, T.; Savinov, V.; Schneider, O.; Schnell, G.; Schueler, J.; Schwanda, C.; Seino, Y.; Senyo, K.; Seon, O.; Sevior, M. E.; Shibata, T. -A.; Simon, F.; Sokolov, A.; Solovieva, E.; Starič, M.; Sumihama, M.; Sumiyoshi, T.; Takizawa, M.; Tamponi, U.; Tanida, K.; Tao, Y.; Tenchini, F.; Trabelsi, K.; Uchida, M.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Vahsen, S. E.; Van Tonder, R.; Varner, G.; Varvell, K. E.; Vorobyev, V.; Wang, B.; Wang, C. H.; Wang, M. -Z.; Wang, P.; Wang, X. L.; Widmann, E.; Won, E.; Yelton, J.; Yin, J. H.; Zhang, Z. P.; Zhilich, V.; Zhukova, V.

doi:10.1103/PhysRevD.98.112008

Title: Measurement of the branching fraction and time-dependent $C P$ asymmetry for $B^{0} \to J / ψ π^{0}$ decays

Abstract

Here, we measure the branching fraction and time-dependent CP-violating asymmetry for B⁰ → J/ψ π⁰ decays using a data sample of 711 fb^–1 collected on the Υ (4S) resonance by the Belle experiment running at the KEKB e⁺e^– collider. The branching fraction is measured to be B(B⁰ → J/ψ π⁰) = [1.62 ± 0.11 (stat) ± 0.06 (syst)] × 10^–5, which is the most precise measurement to date. The measured CP asymmetry parameters are S = –0.59 ± 0.19 (stat) ± 0.03 (syst) and A = –0.15 ± 30.14 (stat) +0.04 (syst). The mixing-induced CP asymmetry (S) differs from the case of no CP violation by 3.0 standard deviations, and the direct CP asymmetry (A) is consistent with zero.

Authors:: Pal, B.; Schwartz, A. J.; Aihara, H.; Al Said, S.; Asner, D. M.; Atmacan, H.; Aulchenko, V.; Aushev, T.; Ayad, R.; Badhrees, I.; Bahinipati, S.; Bansal, V.; Behera, P.; Beleño, C.; Bhuyan, B.; Bilka, T.; Biswal, J.; Bozek, A.; Bračko, M.; Cao, L. more »« less

Publication Date:: Wed Dec 19 00:00:00 EST 2018

Research Org.:: Brookhaven National Laboratory (BNL), Upton, NY (United States); Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Univ. of Hawaii, Honolulu, HI (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP); KEK - High Energy Accelerator Research Organization; Ministry of Education, Culture, Sports, Science and Technology

Contributing Org.:: Belle Collaboration

OSTI Identifier:: 1488363

Alternate Identifier(s):: OSTI ID: 1491123; OSTI ID: 1507730; OSTI ID: 1593892

Report Number(s):: BNL-210865-2019-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ; 112008

Grant/Contract Number:: SC0009973; SC0012704; AC05-76RL01830; DP180102629; DP170102389; DP170102204; DP150103061; FT130100303; P 26794-N20; 11435013; 11475187; 11521505; 11575017; 11675166; 11705209; QYZDJ-SSW-SLH011; LTT17020; 2014R1A2A2A01005286; 2015R1A2A2A01003280; 2015H1A2A1033649; 2016R1D1A1B01010135; 2016K1A3A7A09005 603; 2016R1D1A1B02012900; 18-12-00226; IT956-16; SC0010504

Resource Type:: Published Article

Journal Name:: Physical Review. D.

Additional Journal Information:: Journal Name: Physical Review. D. Journal Volume: 98 Journal Issue: 11; Journal ID: ISSN 2470-0010

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 02 PETROLEUM; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats


                    Pal, B., Schwartz, A. J., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Badhrees, I., Bahinipati, S., Bansal, V., Behera, P., Beleño, C., Bhuyan, B., Bilka, T., Biswal, J., Bozek, A., Bračko, M., Cao, L., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Doležal, Z., Eidelman, S., Epifanov, D., Fast, J. E., Fulsom, B. G., Garg, R., Gaur, V., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Golob, B., Guan, Y., Hara, T., Hayasaka, K., Hayashii, H., Higuchi, T., Hou, W. -S., Hsu, C. -L., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Joffe, D., Julius, T., Karyan, G., Kim, D. Y., Kim, K. T., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kulasiri, R., Kumar, R., Kuzmin, A., Kwon, Y. -J., Lalwani, K., Lee, S. C., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lu, P. -C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Nakano, E., Nakao, M., Nath, K. J., Natkaniec, Z., Nayak, M., Nishida, S., Ogawa, S., Ono, H., Pakhlova, G., Pardi, S., Park, H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Purohit, M. V., Ritter, M., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shibata, T. -A., Simon, F., Sokolov, A., Solovieva, E., Starič, M., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tao, Y., Tenchini, F., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Vahsen, S. E., Van Tonder, R., Varner, G., Varvell, K. E., Vorobyev, V., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Widmann, E., Won, E., Yelton, J., Yin, J. H., Zhang, Z. P., Zhilich, V., Zhukova, V., and Belle Collaboration. Measurement of the branching fraction and time-dependent C P asymmetry for B 0 → J / ψ π 0 decays.  United States: N. p., 2018. 
Web.  doi:10.1103/PhysRevD.98.112008.

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                    Pal, B., Schwartz, A. J., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Badhrees, I., Bahinipati, S., Bansal, V., Behera, P., Beleño, C., Bhuyan, B., Bilka, T., Biswal, J., Bozek, A., Bračko, M., Cao, L., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Doležal, Z., Eidelman, S., Epifanov, D., Fast, J. E., Fulsom, B. G., Garg, R., Gaur, V., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Golob, B., Guan, Y., Hara, T., Hayasaka, K., Hayashii, H., Higuchi, T., Hou, W. -S., Hsu, C. -L., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Joffe, D., Julius, T., Karyan, G., Kim, D. Y., Kim, K. T., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kulasiri, R., Kumar, R., Kuzmin, A., Kwon, Y. -J., Lalwani, K., Lee, S. C., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lu, P. -C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Nakano, E., Nakao, M., Nath, K. J., Natkaniec, Z., Nayak, M., Nishida, S., Ogawa, S., Ono, H., Pakhlova, G., Pardi, S., Park, H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Purohit, M. V., Ritter, M., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shibata, T. -A., Simon, F., Sokolov, A., Solovieva, E., Starič, M., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tao, Y., Tenchini, F., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Vahsen, S. E., Van Tonder, R., Varner, G., Varvell, K. E., Vorobyev, V., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Widmann, E., Won, E., Yelton, J., Yin, J. H., Zhang, Z. P., Zhilich, V., Zhukova, V., & Belle Collaboration. Measurement of the branching fraction and time-dependent C P asymmetry for B 0 → J / ψ π 0 decays.  United States.  https://doi.org/10.1103/PhysRevD.98.112008

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                    Pal, B., Schwartz, A. J., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Badhrees, I., Bahinipati, S., Bansal, V., Behera, P., Beleño, C., Bhuyan, B., Bilka, T., Biswal, J., Bozek, A., Bračko, M., Cao, L., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Doležal, Z., Eidelman, S., Epifanov, D., Fast, J. E., Fulsom, B. G., Garg, R., Gaur, V., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Golob, B., Guan, Y., Hara, T., Hayasaka, K., Hayashii, H., Higuchi, T., Hou, W. -S., Hsu, C. -L., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Joffe, D., Julius, T., Karyan, G., Kim, D. Y., Kim, K. T., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kulasiri, R., Kumar, R., Kuzmin, A., Kwon, Y. -J., Lalwani, K., Lee, S. C., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lu, P. -C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Nakano, E., Nakao, M., Nath, K. J., Natkaniec, Z., Nayak, M., Nishida, S., Ogawa, S., Ono, H., Pakhlova, G., Pardi, S., Park, H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Purohit, M. V., Ritter, M., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shibata, T. -A., Simon, F., Sokolov, A., Solovieva, E., Starič, M., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tao, Y., Tenchini, F., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Vahsen, S. E., Van Tonder, R., Varner, G., Varvell, K. E., Vorobyev, V., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Widmann, E., Won, E., Yelton, J., Yin, J. H., Zhang, Z. P., Zhilich, V., Zhukova, V., and Belle Collaboration. Wed .  
"Measurement of the branching fraction and time-dependent C P asymmetry for B 0 → J / ψ π 0 decays".  United States.  https://doi.org/10.1103/PhysRevD.98.112008.

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@article{osti_1488363,

  title        = {Measurement of the branching fraction and time-dependent C P asymmetry for B 0 → J / ψ π 0 decays},

  author       = {Pal, B. and Schwartz, A. J. and Aihara, H. and Al Said, S. and Asner, D. M. and Atmacan, H. and Aulchenko, V. and Aushev, T. and Ayad, R. and Badhrees, I. and Bahinipati, S. and Bansal, V. and Behera, P. and Beleño, C. and Bhuyan, B. and Bilka, T. and Biswal, J. and Bozek, A. and Bračko, M. and Cao, L. and Červenkov, D. and Chekelian, V. and Chen, A. and Cheon, B. G. and Chilikin, K. and Cho, K. and Choi, Y. and Choudhury, S. and Cinabro, D. and Cunliffe, S. and Dash, N. and Di Carlo, S. and Doležal, Z. and Eidelman, S. and Epifanov, D. and Fast, J. E. and Fulsom, B. G. and Garg, R. and Gaur, V. and Garmash, A. and Gelb, M. and Giri, A. and Goldenzweig, P. and Golob, B. and Guan, Y. and Hara, T. and Hayasaka, K. and Hayashii, H. and Higuchi, T. 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 Joffe, D. and Julius, T. and Karyan, G. and Kim, D. Y. and Kim, K. T. and Kim, S. H. and Kinoshita, K. and Kodyš, P. and Korpar, S. and Kotchetkov, D. and Križan, P. and Kroeger, R. and Krokovny, P. and Kulasiri, R. and Kumar, R. and Kuzmin, A. and Kwon, Y. -J. and Lalwani, K. and Lee, S. C. and Li, L. K. and Li, Y. B. and Li Gioi, L. and Libby, J. and Lu, P. -C. and Masuda, M. and Matsuda, T. and Matvienko, D. and Merola, M. and Miyabayashi, K. and Miyata, H. and Mizuk, R. and Mohanty, G. B. and Mori, T. and Nakano, E. and Nakao, M. and Nath, K. J. and Natkaniec, Z. and Nayak, M. and Nishida, S. and Ogawa, S. and Ono, H. and Pakhlova, G. and Pardi, S. and Park, H. and Paul, S. and Pedlar, T. K. and Pestotnik, R. and Piilonen, L. E. and Popov, V. and Prencipe, E. and Purohit, M. V. and Ritter, M. and Russo, G. and Sahoo, D. and Sakai, Y. and Sandilya, S. and Santelj, L. and Sanuki, T. and Savinov, V. and Schneider, O. and Schnell, G. and Schueler, J. and Schwanda, C. and Seino, Y. and Senyo, K. and Seon, O. and Sevior, M. E. and Shibata, T. -A. and Simon, F. and Sokolov, A. and Solovieva, E. and Starič, M. and Sumihama, M. and Sumiyoshi, T. and Takizawa, M. and Tamponi, U. and Tanida, K. and Tao, Y. and Tenchini, F. and Trabelsi, K. and Uchida, M. and Uehara, S. and Uglov, T. and Unno, Y. and Uno, S. and Vahsen, S. E. and Van Tonder, R. and Varner, G. and Varvell, K. E. and Vorobyev, V. and Wang, B. and Wang, C. H. and Wang, M. -Z. and Wang, P. and Wang, X. L. and Widmann, E. and Won, E. and Yelton, J. and Yin, J. H. and Zhang, Z. P. and Zhilich, V. and Zhukova, V. and Belle Collaboration},

  abstractNote = {Here, we measure the branching fraction and time-dependent CP-violating asymmetry for B0 → J/ψ π0 decays using a data sample of 711 fb–1 collected on the Υ (4S) resonance by the Belle experiment running at the KEKB e+e– collider. The branching fraction is measured to be B(B0 → J/ψ π0) = [1.62 ± 0.11 (stat) ± 0.06 (syst)] × 10–5, which is the most precise measurement to date. The measured CP asymmetry parameters are S = –0.59 ± 0.19 (stat) ± 0.03 (syst) and A = –0.15 ± 30.14 (stat) +0.04 (syst). The mixing-induced CP asymmetry (S) differs from the case of no CP violation by 3.0 standard deviations, and the direct CP asymmetry (A) is consistent with zero.},

  doi          = {10.1103/PhysRevD.98.112008},

  journal      = {Physical Review. D.},

  number       = 11,

  volume       = 98,

  place        = {United States},

  year         = {Wed Dec 19 00:00:00 EST 2018},

  month        = {Wed Dec 19 00:00:00 EST 2018}

}

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FIG. 1: (a) Tree and (b) penguin amplitudes for the decay B⁰ → J/ψπ⁰.

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Title: Measurement of the branching fraction and time-dependent C P asymmetry for B 0 → J / ψ π 0 decays

Abstract

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Title: Measurement of the branching fraction and time-dependent $C P$ asymmetry for $B^{0} \to J / ψ π^{0}$ decays

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