Study of decays and implications for the CKM angle
Abstract
We present a measurement of the branching fraction and the longitudinal polarization fraction of B0 → ρ+ρ– decays, as well as the time-dependent CP violating parameters in decays into longitudinally polarized ρ+ρ– pairs with Belle’s final data set of 772 × 106 BB¯ pairs, at the Υ(4S) resonance, collected at the asymmetric-energy e+e– collider KEKB. We obtain B(B0 → ρ+ρ–) = (28.3 ± 1.5(stat) ± 1.5(syst)) × 10–6, fL = 0.988 ± 0.012(stat) ± 0.023(syst), ACP = 0.00 ± 0.10(stat) ± 0.06(syst), SCP = –0.13 ± 0.15(stat) ± 0.05(syst). As a result, we perform an isospin analysis to constrain the Cabibbo-Kobayashi-Maskawa angle Φ2 and obtain two solutions with Φ2 = (93.7 ± 10.6)°, being most compatible with other Standard-Model based fits to the data.
- Authors:
- more »
- 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:
- 1594397
- Alternate Identifier(s):
- OSTI ID: 1239615
- Grant/Contract Number:
- SC0009973
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Volume: 93; Journal Issue: 3; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Branching fraction; Hadronic decays; Bottom mesons
Citation Formats
Vanhoefer, P., Dalseno, J., Kiesling, C., Abdesselam, A., Adachi, I., Aihara, H., Al Said, S., Arinstein, K., Asner, D. M., Atmacan, H., Aushev, T., Aziz, T., Babu, V., Badhrees, I., Bakich, A. M., Bansal, V., Barberio, E., Behera, P., Bhuyan, B., Biswal, J., Bobrov, A., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Danilov, M., Dash, N., Dingfelder, J., Doležal, Z., Drásal, Z., Dutta, D., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Fulsom, B. G., Gaur, V., Gabyshev, N., Garmash, A., Gillard, R., Goh, Y. M., Goldenzweig, P., Golob, B., Greenwald, D., Haba, J., Hamer, P., Hara, T., Hayasaka, K., Hayashii, H., He, X. H., Horiguchi, T., Hou, W. -S., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, Y., Jacobs, W. W., Jaegle, I., Joffe, D., Joo, K. K., Julius, T., Kang, K. H., Kato, E., Katrenko, P., Kawasaki, T., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kim, S. H., Kim, Y. J., Kinoshita, K., Ko, B. R., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lee, I. S., Li, L., Li, Y., Li Gioi, L., Libby, J., Liventsev, D., Lukin, P., Masuda, M., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mohanty, S., Moll, A., Moon, H. K., Mori, T., Nakano, E., Nakao, M., Nanut, T., Natkaniec, Z., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, S., Okuno, S., Pakhlov, P., Pakhlova, G., Pal, B., Park, C. W., Park, H., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Pulvermacher, C., Ribežl, E., Ritter, M., Rostomyan, A., Sahoo, H., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Sumihama, M., Sumiyoshi, T., Tamponi, U., Teramoto, Y., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Van Hulse, C., Varner, G., Vinokurova, A., Vossen, A., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Watanabe, Y., Won, E., Yamamoto, H., Yamaoka, J., Yashchenko, S., Ye, H., Yook, Y., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A. Study of B0→ρ+ρ– decays and implications for the CKM angle Φ2. United States: N. p., 2016.
Web. doi:10.1103/PhysRevD.93.032010.
Vanhoefer, P., Dalseno, J., Kiesling, C., Abdesselam, A., Adachi, I., Aihara, H., Al Said, S., Arinstein, K., Asner, D. M., Atmacan, H., Aushev, T., Aziz, T., Babu, V., Badhrees, I., Bakich, A. M., Bansal, V., Barberio, E., Behera, P., Bhuyan, B., Biswal, J., Bobrov, A., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Danilov, M., Dash, N., Dingfelder, J., Doležal, Z., Drásal, Z., Dutta, D., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Fulsom, B. G., Gaur, V., Gabyshev, N., Garmash, A., Gillard, R., Goh, Y. M., Goldenzweig, P., Golob, B., Greenwald, D., Haba, J., Hamer, P., Hara, T., Hayasaka, K., Hayashii, H., He, X. H., Horiguchi, T., Hou, W. -S., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, Y., Jacobs, W. W., Jaegle, I., Joffe, D., Joo, K. K., Julius, T., Kang, K. H., Kato, E., Katrenko, P., Kawasaki, T., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kim, S. H., Kim, Y. J., Kinoshita, K., Ko, B. R., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lee, I. S., Li, L., Li, Y., Li Gioi, L., Libby, J., Liventsev, D., Lukin, P., Masuda, M., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mohanty, S., Moll, A., Moon, H. K., Mori, T., Nakano, E., Nakao, M., Nanut, T., Natkaniec, Z., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, S., Okuno, S., Pakhlov, P., Pakhlova, G., Pal, B., Park, C. W., Park, H., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Pulvermacher, C., Ribežl, E., Ritter, M., Rostomyan, A., Sahoo, H., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Sumihama, M., Sumiyoshi, T., Tamponi, U., Teramoto, Y., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Van Hulse, C., Varner, G., Vinokurova, A., Vossen, A., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Watanabe, Y., Won, E., Yamamoto, H., Yamaoka, J., Yashchenko, S., Ye, H., Yook, Y., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., & Zupanc, A. Study of B0→ρ+ρ– decays and implications for the CKM angle Φ2. United States. https://doi.org/10.1103/PhysRevD.93.032010
Vanhoefer, P., Dalseno, J., Kiesling, C., Abdesselam, A., Adachi, I., Aihara, H., Al Said, S., Arinstein, K., Asner, D. M., Atmacan, H., Aushev, T., Aziz, T., Babu, V., Badhrees, I., Bakich, A. M., Bansal, V., Barberio, E., Behera, P., Bhuyan, B., Biswal, J., Bobrov, A., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Danilov, M., Dash, N., Dingfelder, J., Doležal, Z., Drásal, Z., Dutta, D., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Fulsom, B. G., Gaur, V., Gabyshev, N., Garmash, A., Gillard, R., Goh, Y. M., Goldenzweig, P., Golob, B., Greenwald, D., Haba, J., Hamer, P., Hara, T., Hayasaka, K., Hayashii, H., He, X. H., Horiguchi, T., Hou, W. -S., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, Y., Jacobs, W. W., Jaegle, I., Joffe, D., Joo, K. K., Julius, T., Kang, K. H., Kato, E., Katrenko, P., Kawasaki, T., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kim, S. H., Kim, Y. J., Kinoshita, K., Ko, B. R., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lee, I. S., Li, L., Li, Y., Li Gioi, L., Libby, J., Liventsev, D., Lukin, P., Masuda, M., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mohanty, S., Moll, A., Moon, H. K., Mori, T., Nakano, E., Nakao, M., Nanut, T., Natkaniec, Z., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, S., Okuno, S., Pakhlov, P., Pakhlova, G., Pal, B., Park, C. W., Park, H., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Pulvermacher, C., Ribežl, E., Ritter, M., Rostomyan, A., Sahoo, H., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Sumihama, M., Sumiyoshi, T., Tamponi, U., Teramoto, Y., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Van Hulse, C., Varner, G., Vinokurova, A., Vossen, A., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Watanabe, Y., Won, E., Yamamoto, H., Yamaoka, J., Yashchenko, S., Ye, H., Yook, Y., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A. Fri .
"Study of B0→ρ+ρ– decays and implications for the CKM angle Φ2". United States. https://doi.org/10.1103/PhysRevD.93.032010. https://www.osti.gov/servlets/purl/1594397.
@article{osti_1594397,
title = {Study of B0→ρ+ρ– decays and implications for the CKM angle Φ2},
author = {Vanhoefer, P. and Dalseno, J. and Kiesling, C. and Abdesselam, A. and Adachi, I. and Aihara, H. and Al Said, S. and Arinstein, K. and Asner, D. M. and Atmacan, H. and Aushev, T. and Aziz, T. and Babu, V. and Badhrees, I. and Bakich, A. M. and Bansal, V. and Barberio, E. and Behera, P. and Bhuyan, B. and Biswal, J. and Bobrov, A. and Bozek, A. and Bračko, M. and Browder, T. E. and Červenkov, D. and Chang, P. and Chekelian, V. and Chen, A. and Cheon, B. G. and Chilikin, K. and Chistov, R. and Chobanova, V. and Choi, S. -K. and Choi, Y. and Cinabro, D. and Danilov, M. and Dash, N. and Dingfelder, J. and Doležal, Z. and Drásal, Z. and Dutta, D. and Eidelman, S. and Farhat, H. and Fast, J. E. and Ferber, T. and Fulsom, B. G. and Gaur, V. and Gabyshev, N. and Garmash, A. and Gillard, R. and Goh, Y. M. and Goldenzweig, P. and Golob, B. and Greenwald, D. and Haba, J. and Hamer, P. and Hara, T. and Hayasaka, K. and Hayashii, H. and He, X. H. and Horiguchi, T. and Hou, W. -S. and Iijima, T. and Inami, K. and Ishikawa, A. and Itoh, R. and Iwasaki, Y. and Jacobs, W. W. and Jaegle, I. and Joffe, D. and Joo, K. K. and Julius, T. and Kang, K. H. and Kato, E. and Katrenko, P. and Kawasaki, T. and Kim, D. Y. and Kim, H. J. and Kim, J. B. and Kim, J. H. and Kim, K. T. and Kim, M. J. and Kim, S. H. and Kim, Y. J. and Kinoshita, K. and Ko, B. R. and Korpar, S. and Križan, P. and Krokovny, P. and Kuhr, T. and Kumita, T. and Kuzmin, A. and Kwon, Y. -J. and Lee, I. S. and Li, L. and Li, Y. and Li Gioi, L. and Libby, J. and Liventsev, D. and Lukin, P. and Masuda, M. and Matvienko, D. and Miyabayashi, K. and Miyata, H. and Mizuk, R. and Mohanty, G. B. and Mohanty, S. and Moll, A. and Moon, H. K. and Mori, T. and Nakano, E. and Nakao, M. and Nanut, T. and Natkaniec, Z. and Nayak, M. and Nisar, N. K. and Nishida, S. and Ogawa, S. and Okuno, S. and Pakhlov, P. and Pakhlova, G. and Pal, B. and Park, C. W. and Park, H. and Pedlar, T. K. and Pestotnik, R. and Petrič, M. and Piilonen, L. E. and Pulvermacher, C. and Ribežl, E. and Ritter, M. and Rostomyan, A. and Sahoo, H. and Sakai, Y. and Sandilya, S. and Santelj, L. and Sanuki, T. and Sato, Y. and Savinov, V. and Schneider, O. and Schnell, G. and Schwanda, C. and Schwartz, A. J. and Seino, Y. and Senyo, K. and Seon, O. and Sevior, M. E. and Shebalin, V. and Shen, C. P. and Shibata, T. -A. and Shiu, J. -G. and Simon, F. and Sohn, Y. -S. and Sokolov, A. and Solovieva, E. and Starič, M. and Sumihama, M. and Sumiyoshi, T. and Tamponi, U. and Teramoto, Y. and Trabelsi, K. and Uchida, M. and Uglov, T. and Unno, Y. and Uno, S. and Usov, Y. and Van Hulse, C. and Varner, G. and Vinokurova, A. and Vossen, 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 Yamamoto, H. and Yamaoka, J. and Yashchenko, S. and Ye, H. and Yook, Y. and Yusa, Y. and Zhang, Z. P. and Zhilich, V. and Zhulanov, V. and Zupanc, A.},
abstractNote = {We present a measurement of the branching fraction and the longitudinal polarization fraction of B0 → ρ+ρ– decays, as well as the time-dependent CP violating parameters in decays into longitudinally polarized ρ+ρ– pairs with Belle’s final data set of 772 × 106 BB¯ pairs, at the Υ(4S) resonance, collected at the asymmetric-energy e+e– collider KEKB. We obtain B(B0 → ρ+ρ–) = (28.3 ± 1.5(stat) ± 1.5(syst)) × 10–6, fL = 0.988 ± 0.012(stat) ± 0.023(syst), ACP = 0.00 ± 0.10(stat) ± 0.06(syst), SCP = –0.13 ± 0.15(stat) ± 0.05(syst). As a result, we perform an isospin analysis to constrain the Cabibbo-Kobayashi-Maskawa angle Φ2 and obtain two solutions with Φ2 = (93.7 ± 10.6)°, being most compatible with other Standard-Model based fits to the data.},
doi = {10.1103/PhysRevD.93.032010},
journal = {Physical Review D},
number = 3,
volume = 93,
place = {United States},
year = {Fri Feb 26 00:00:00 EST 2016},
month = {Fri Feb 26 00:00:00 EST 2016}
}
Web of Science
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- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 499, Issue 1
Measurements of the Branching Fraction and Polarization in Decays
journal, September 2005
- Zhang, J.; Abe, K.; Adachi, I.
- Physical Review Letters, Vol. 95, Issue 14
The Belle detector
journal, February 2002
- Abashian, A.; Gotow, K.; Morgan, N.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 479, Issue 1
Observation of Decays
journal, November 2003
- Zhang, J.; Nakao, M.; Abe, K.
- Physical Review Letters, Vol. 91, Issue 22
Measurement of Asymmetry in a Time-Dependent Dalitz Analysis of and a Constraint on the Quark Mixing Matrix Angle
journal, June 2007
- Kusaka, A.; Wang, C. C.; Ishino, H.
- Physical Review Letters, Vol. 98, Issue 22
Impact of tag-side interference on time-dependent CP asymmetry measurements using coherent pairs
journal, August 2003
- Long, Owen; Baak, Max; Cahn, Robert N.
- Physical Review D, Vol. 68, Issue 3
Implication of the data on the puzzle
journal, June 2006
- Li, Hsiang-nan; Mishima, Satoshi
- Physical Review D, Vol. 73, Issue 11
Works referencing / citing this record:
CP violation in the B system
journal, February 2017
- Gershon, T.; Gligorov, V. V.
- Reports on Progress in Physics, Vol. 80, Issue 4
Averages of b-hadron, c-hadron, and $$\tau $$ τ -lepton properties as of summer 2016
journal, December 2017
- Amhis, Y.; Banerjee, Sw.; Ben-Haim, E.
- The European Physical Journal C, Vol. 77, Issue 12