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Title: Evidence for Isospin Violation and Measurement of C P Asymmetries in B K * ( 892 ) γ

Abstract

Here, we report the first evidence for isospin violation in B → K*γ and the first measurement of the difference of CP asymmetries between B+→K*+γ and B 0 → K* 0γ. This analysis is based on the data sample containing 772 × 10 6$$B\overline{B}$$ pairs that was collected with the Belle detector at the KEKB energy-asymmetric e +e - collider. We find evidence for the isospin violation with a significance of 3.1σ, Δ 0+ = [+6.2 ± 1.5(stat) ± 0.6(syst) ± 1.2(f +-/ f 00)]% , where the third uncertainty is due to the uncertainty on the fraction of B +B - to B 0B 0 production in Υ(4S) decays. The measured value is consistent with predictions of the standard model. The result for the difference of CP asymmetries is ΔA CP = [+2.4 ± 2.8(stat)± 0.5(syst)]% , consistent with zero. The measured branching fractions and CP asymmetries for charged and neutral B meson decays are the most precise to date. Finally, we also calculate the ratio of branching fractions of B 0 → K* 0γ to B$$0\atop{s}$$ → Φγ.

Authors:
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Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
Contributing Org.:
Belle Collaboration
OSTI Identifier:
1430715
Alternate Identifier(s):
OSTI ID: 1407827
Report Number(s):
PNNL-SA-127410
Journal ID: ISSN 0031-9007; PRLTAO
Grant/Contract Number:  
AC05-76RL01830; LTT17020; 2011-0029457; 2012-0008143; 2014R1A2A2A01005286; 2014R1A2A2A01002734; 2015R1A2A2A01003280; 2015H1A2A1033649; 2016R1D1A1B01010135; 2016K1A3A7A09005603; 2016K1A3A7A09005604; 2016R1D1A1B02012900; 2016K1A3A7A09005606; NRF-2013K1A3A7A06056592
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 119; Journal Issue: 19; 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

Horiguchi, T., Ishikawa, A., Yamamoto, H., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bakich, A. M., Bansal, V., Behera, P., Bhardwaj, V., Bhuyan, B., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, Y., Cinabro, D., Czank, T., Dash, N., Di Carlo, S., Doležal, Z., Drásal, Z., Dutta, D., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Fulsom, B. G., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Gillard, R., Goldenzweig, P., Golob, B., Guan, Y., Guido, E., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hedges, M. T., Higuchi, T., Hirose, S., Hou, W. -S., Iijima, T., Inami, K., Inguglia, G., Itoh, R., Iwasaki, Y., Jacobs, W. W., Jaegle, I., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Julius, T., Kang, K. H., Kawasaki, T., Kim, D. Y., Kim, J. B., Kim, K. T., Kim, M. J., Kim, S. H., Kim, Y. J., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Krokovny, P., Kuhr, T., Kulasiri, R., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Li, C. H., Li, L., Li Gioi, L., Libby, J., Liventsev, D., Lubej, M., Luo, T., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mohanty, S., Moon, H. K., Mori, T., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Nath, K. J., Natkaniec, Z., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, S., Okuno, S., Ono, H., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, C. -S., Park, H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Prasanth, K., Pulvermacher, C., Rauch, J., Rostomyan, A., Sakai, Y., Sandilya, S., Santelj, L., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Seong, I. S., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Simon, F., Sokolov, A., Solovieva, E., Starič, M., Strube, J. F., Sumisawa, K., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Usov, Y., Van Hulse, C., Varner, G., Vinokurova, A., Vorobyev, V., Vossen, A., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, Y., Watanuki, S., Weber, T., Widmann, E., Won, E., Yamashita, Y., Ye, H., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., and Zupanc, A. Evidence for Isospin Violation and Measurement of CP Asymmetries in B→K*(892)γ. United States: N. p., 2017. Web. doi:10.1103/PhysRevLett.119.191802.
Horiguchi, T., Ishikawa, A., Yamamoto, H., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bakich, A. M., Bansal, V., Behera, P., Bhardwaj, V., Bhuyan, B., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, Y., Cinabro, D., Czank, T., Dash, N., Di Carlo, S., Doležal, Z., Drásal, Z., Dutta, D., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Fulsom, B. G., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Gillard, R., Goldenzweig, P., Golob, B., Guan, Y., Guido, E., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hedges, M. T., Higuchi, T., Hirose, S., Hou, W. -S., Iijima, T., Inami, K., Inguglia, G., Itoh, R., Iwasaki, Y., Jacobs, W. W., Jaegle, I., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Julius, T., Kang, K. H., Kawasaki, T., Kim, D. Y., Kim, J. B., Kim, K. T., Kim, M. J., Kim, S. H., Kim, Y. J., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Krokovny, P., Kuhr, T., Kulasiri, R., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Li, C. H., Li, L., Li Gioi, L., Libby, J., Liventsev, D., Lubej, M., Luo, T., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mohanty, S., Moon, H. K., Mori, T., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Nath, K. J., Natkaniec, Z., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, S., Okuno, S., Ono, H., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, C. -S., Park, H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Prasanth, K., Pulvermacher, C., Rauch, J., Rostomyan, A., Sakai, Y., Sandilya, S., Santelj, L., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Seong, I. S., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Simon, F., Sokolov, A., Solovieva, E., Starič, M., Strube, J. F., Sumisawa, K., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Usov, Y., Van Hulse, C., Varner, G., Vinokurova, A., Vorobyev, V., Vossen, A., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, Y., Watanuki, S., Weber, T., Widmann, E., Won, E., Yamashita, Y., Ye, H., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., & Zupanc, A. Evidence for Isospin Violation and Measurement of CP Asymmetries in B→K*(892)γ. United States. doi:10.1103/PhysRevLett.119.191802.
Horiguchi, T., Ishikawa, A., Yamamoto, H., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bakich, A. M., Bansal, V., Behera, P., Bhardwaj, V., Bhuyan, B., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, Y., Cinabro, D., Czank, T., Dash, N., Di Carlo, S., Doležal, Z., Drásal, Z., Dutta, D., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Fulsom, B. G., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Gillard, R., Goldenzweig, P., Golob, B., Guan, Y., Guido, E., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hedges, M. T., Higuchi, T., Hirose, S., Hou, W. -S., Iijima, T., Inami, K., Inguglia, G., Itoh, R., Iwasaki, Y., Jacobs, W. W., Jaegle, I., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Julius, T., Kang, K. H., Kawasaki, T., Kim, D. Y., Kim, J. B., Kim, K. T., Kim, M. J., Kim, S. H., Kim, Y. J., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Krokovny, P., Kuhr, T., Kulasiri, R., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Li, C. H., Li, L., Li Gioi, L., Libby, J., Liventsev, D., Lubej, M., Luo, T., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mohanty, S., Moon, H. K., Mori, T., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Nath, K. J., Natkaniec, Z., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, S., Okuno, S., Ono, H., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, C. -S., Park, H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Prasanth, K., Pulvermacher, C., Rauch, J., Rostomyan, A., Sakai, Y., Sandilya, S., Santelj, L., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Seong, I. S., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Simon, F., Sokolov, A., Solovieva, E., Starič, M., Strube, J. F., Sumisawa, K., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Usov, Y., Van Hulse, C., Varner, G., Vinokurova, A., Vorobyev, V., Vossen, A., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, Y., Watanuki, S., Weber, T., Widmann, E., Won, E., Yamashita, Y., Ye, H., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., and Zupanc, A. Tue . "Evidence for Isospin Violation and Measurement of CP Asymmetries in B→K*(892)γ". United States. doi:10.1103/PhysRevLett.119.191802.
@article{osti_1430715,
title = {Evidence for Isospin Violation and Measurement of CP Asymmetries in B→K*(892)γ},
author = {Horiguchi, T. and Ishikawa, A. and Yamamoto, H. and Adachi, I. and Aihara, H. and Al Said, S. and Asner, D. M. and Aulchenko, V. and Aushev, T. and Ayad, R. and Babu, V. and Badhrees, I. and Bakich, A. M. and Bansal, V. and Behera, P. and Bhardwaj, V. and Bhuyan, B. and Biswal, J. and Bobrov, A. and Bonvicini, G. and Bozek, A. and Bračko, M. and Browder, T. E. and Červenkov, D. and Chekelian, V. and Chen, A. and Cheon, B. G. and Chilikin, K. and Cho, K. and Choi, Y. and Cinabro, D. and Czank, T. and Dash, N. and Di Carlo, S. and Doležal, Z. and Drásal, Z. and Dutta, D. and Eidelman, S. and Epifanov, D. and Farhat, H. and Fast, J. E. and Ferber, T. and Fulsom, B. G. and Gaur, V. and Gabyshev, N. and Garmash, A. and Gelb, M. and Gillard, R. and Goldenzweig, P. and Golob, B. and Guan, Y. and Guido, E. and Haba, J. and Hara, T. and Hayasaka, K. and Hayashii, H. and Hedges, M. T. and Higuchi, T. and Hirose, S. and Hou, W. -S. and Iijima, T. and Inami, K. and Inguglia, G. and Itoh, R. and Iwasaki, Y. and Jacobs, W. W. and Jaegle, I. and Jeon, H. B. and Jia, S. and Jin, Y. and Joffe, D. and Joo, K. K. and Julius, T. and Kang, K. H. and Kawasaki, T. and Kim, D. Y. and Kim, J. B. and Kim, K. T. and Kim, M. J. and Kim, S. H. and Kim, Y. J. and Kinoshita, K. and Kodyš, P. and Korpar, S. and Kotchetkov, D. and Križan, P. and Krokovny, P. and Kuhr, T. and Kulasiri, R. and Kumar, R. and Kumita, T. and Kuzmin, A. and Kwon, Y. -J. and Lange, J. S. and Li, C. H. and Li, L. and Li Gioi, L. and Libby, J. and Liventsev, D. and Lubej, M. and Luo, T. 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 Mohanty, S. and Moon, H. K. and Mori, T. and Mussa, R. and Nakano, E. and Nakao, M. and Nanut, T. and Nath, K. J. and Natkaniec, Z. and Nayak, M. and Nisar, N. K. and Nishida, S. and Ogawa, S. and Okuno, S. and Ono, H. and Pakhlov, P. and Pakhlova, G. and Pal, B. and Pardi, S. and Park, C. -S. and Park, H. and Paul, S. and Pedlar, T. K. and Pestotnik, R. and Piilonen, L. E. and Prasanth, K. and Pulvermacher, C. and Rauch, J. and Rostomyan, A. and Sakai, Y. and Sandilya, S. and Santelj, L. and Savinov, V. and Schneider, O. and Schnell, G. and Schwanda, C. and Schwartz, A. J. and Seino, Y. and Senyo, K. and Seong, I. S. and Sevior, M. E. and Shebalin, V. and Shen, C. P. and Shibata, T. -A. and Shiu, J. -G. and Simon, F. and Sokolov, A. and Solovieva, E. and Starič, M. and Strube, J. F. and Sumisawa, K. and Sumiyoshi, T. and Takizawa, M. and Tamponi, U. and Tanida, K. and Tenchini, F. and Trabelsi, K. and Uchida, M. and Uglov, T. and Unno, Y. and Uno, S. and Urquijo, P. and Ushiroda, Y. and Usov, Y. and Van Hulse, C. and Varner, G. and Vinokurova, A. and Vorobyev, V. and Vossen, A. and Wang, C. H. and Wang, M. -Z. and Wang, P. and Watanabe, Y. and Watanuki, S. and Weber, T. and Widmann, E. and Won, E. and Yamashita, Y. and Ye, H. and Zhang, Z. P. and Zhilich, V. and Zhukova, V. and Zhulanov, V. and Zupanc, A.},
abstractNote = {Here, we report the first evidence for isospin violation in B → K*γ and the first measurement of the difference of CP asymmetries between B+→K*+γ and B0 → K*0γ. This analysis is based on the data sample containing 772 × 106$B\overline{B}$ pairs that was collected with the Belle detector at the KEKB energy-asymmetric e+e- collider. We find evidence for the isospin violation with a significance of 3.1σ, Δ0+ = [+6.2 ± 1.5(stat) ± 0.6(syst) ± 1.2(f+-/ f00)]% , where the third uncertainty is due to the uncertainty on the fraction of B+B- to B0B0 production in Υ(4S) decays. The measured value is consistent with predictions of the standard model. The result for the difference of CP asymmetries is ΔACP = [+2.4 ± 2.8(stat)± 0.5(syst)]% , consistent with zero. The measured branching fractions and CP asymmetries for charged and neutral B meson decays are the most precise to date. Finally, we also calculate the ratio of branching fractions of B0 → K*0γ to B$0\atop{s}$ → Φγ.},
doi = {10.1103/PhysRevLett.119.191802},
journal = {Physical Review Letters},
number = 19,
volume = 119,
place = {United States},
year = {Tue Nov 07 00:00:00 EST 2017},
month = {Tue Nov 07 00:00:00 EST 2017}
}

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