Evidence for the suppressed decay B-→DK-, D→K+ π-π0

M. Nayak; J. Libby; K. Trabelsi; I. Adachi; H. Aihara; D. M. Asner; T. Aushev; A. M. Bakich; A. Bala; P. Behera; K. Belous; V. Bhardwaj; G. Bonvicini; A. Bozek; M. Bračko; T. E. Browder; D. Červenkov; M. C. Chang; P. Chang; V. Chekelian; A. Chen; B. G. Cheon; R. Chistov; I. S. Cho; K. Cho; V. Chobanova; Y. Choi; D. Cinabro; J. Dalseno; M. Danilov; Z. Doležal; Z. Drásal; D. Dutta; S. Eidelman; S. Esen; H. Farhat; J. E. Fast; T. Ferber; V. Gaur; N. Gabyshev; S. Ganguly; R. Gillard; Y. M. Goh; B. Golob; J. Haba; H. Hayashii; Y. Horii; Y. Hoshi; W. S. Hou; H. J. Hyun; T. Iijima; A. Ishikawa; T. Iwashita; I. Jaegle; T. Julius; D. H. Kah; E. Kato; D. Y. Kim; H. J. Kim; J. B. Kim; M. J. Kim; Y. J. Kim; K. Kinoshita; J. Klucar; B. R. Ko; P. Kodyš; S. Korpar; P. Krishnan; P. Križan; P. Krokovny; T. Kuhr; T. Kumita; A. Kuzmin; Y. J. Kwon; S. H. Lee; J. Li; Y. Li; L. Li Gioi; Y. Liu; D. Liventsev; P. Lukin; H. Miyake; R. Mizuk; G. B. Mohanty; A. Moll; T. Mori; N. Muramatsu; R. Mussa; Y. Nagasaka; M. Nakao; E. Nedelkovska; K. Negishi; C. Ng; N. K. Nisar; O. Nitoh; S. Ogawa; S. Okuno; Y. Onuki; P. Pakhlov; G. Pakhlova; C. W. Park; H. Park; T. K. Pedlar; M. Petrič; L. E. Piilonen; M. Ritter; M. Röhrken; A. Rostomyan; H. Sahoo; T. Saito; Y. Sakai; S. Sandilya; L. Santelj; T. Sanuki; V. Savinov; O. Schneider; G. Schnell; C. Schwanda; A. J. Schwartz; K. Senyo; O. Seon; M. E. Sevior; M. Shapkin; C. P. Shen; T. A. Shibata; J. G. Shiu; B. Shwartz; A. Sibidanov; F. Simon; Y. S. Sohn; A. Sokolov; E. Solovieva; M. Starič; M. Steder; Z. Suzuki; U. Tamponi; G. Tatishvili; Y. Teramoto; M. Uchida; T. Uglov; Y. Unno; S. Uno; P. Urquijo; S. E. Vahsen; C. Van Hulse; P. Vanhoefer; G. Varner; K. E. Varvell; M. N. Wagner; C. H. Wang; M. Z. Wang; Y. Watanabe; K. M. Williams; E. Won; Y. Yamashita; S. Yashchenko; Y. Yusa; V. Zhilich; V. Zhulanov; A. Zupanc

doi:10.1103/PhysRevD.88.091104

Evidence for the suppressed decay B-^→DK-, D→K+ ^π-π0

M. Nayak
, J. Libby
, K. Trabelsi
, I. Adachi
, H. Aihara
, D. M. Asner
, T. Aushev
, A. M. Bakich
, A. Bala
, P. Behera
, K. Belous
, V. Bhardwaj
, G. Bonvicini
, A. Bozek
, M. Bračko
, T. E. Browder
, D. Červenkov
, M. C. Chang
, P. Chang
, V. Chekelian

A. Chen, B. G. Cheon, R. Chistov, I. S. Cho, K. Cho, V. Chobanova, Y. Choi, D. Cinabro, J. Dalseno, M. Danilov, Z. Doležal, Z. Drásal, D. Dutta, S. Eidelman, S. Esen, H. Farhat, J. E. Fast, T. Ferber, V. Gaur, N. Gabyshev, S. Ganguly, R. Gillard, Y. M. Goh, B. Golob, J. Haba, H. Hayashii, Y. Horii, Y. Hoshi, W. S. Hou, H. J. Hyun, T. Iijima, A. Ishikawa, T. Iwashita, I. Jaegle, T. Julius, D. H. Kah, E. Kato, D. Y. Kim, H. J. Kim, J. B. Kim, M. J. Kim, Y. J. Kim, K. Kinoshita, J. Klucar, B. R. Ko, P. Kodyš, S. Korpar, P. Krishnan, P. Križan, P. Krokovny, T. Kuhr, T. Kumita, A. Kuzmin, Y. J. Kwon, S. H. Lee, J. Li, Y. Li, L. Li Gioi, Y. Liu, D. Liventsev, P. Lukin, H. Miyake, R. Mizuk, G. B. Mohanty, A. Moll, T. Mori, N. Muramatsu, R. Mussa, Y. Nagasaka, M. Nakao, E. Nedelkovska, K. Negishi, C. Ng, N. K. Nisar, O. Nitoh, S. Ogawa, S. Okuno, Y. Onuki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, T. K. Pedlar, M. Petrič, L. E. Piilonen, M. Ritter, M. Röhrken, A. Rostomyan, H. Sahoo, T. Saito, Y. Sakai, S. Sandilya, L. Santelj, T. Sanuki, V. Savinov, O. Schneider, G. Schnell, C. Schwanda, A. J. Schwartz, K. Senyo, O. Seon, M. E. Sevior, M. Shapkin, C. P. Shen, T. A. Shibata, J. G. Shiu, B. Shwartz, A. Sibidanov, F. Simon, Y. S. Sohn, A. Sokolov, E. Solovieva, M. Starič, M. Steder, Z. Suzuki, U. Tamponi, G. Tatishvili, Y. Teramoto, M. Uchida, T. Uglov, Y. Unno, S. Uno, P. Urquijo, S. E. Vahsen, C. Van Hulse, P. Vanhoefer, G. Varner, K. E. Varvell, M. N. Wagner, C. H. Wang, M. Z. Wang, Y. Watanabe, K. M. Williams, E. Won, Y. Yamashita, S. Yashchenko, Y. Yusa, V. Zhilich, V. Zhulanov, A. Zupanc

Indian Institute of Technology Madras
High Energy Accelerator Research Organization, Tsukuba
The University of Tokyo
Pacific Northwest National Laboratory
Alikhanov Institute for Theoretical and Experimental Physics
The University of Sydney
Panjab University
Institute for High Energy Physics
Nara Women's University
Wayne State University
H. Niewodniczanski Institute of Nuclear Physics
Jožef Stefan Institute
University of Maribor
University of Hawai'i at Mānoa
Charles University
Fu Jen Catholic University
National Taiwan University
Max Planck Institute for Physics (Werner Heisenberg Institute)
National Central University
Hanyang University
Yonsei University
Korea Institute of Science and Technology Information
Sungkyunkwan University
Technische Universität München
Moscow Engineering Physics Institute
Indian Institute of Technology Guwahati
Novosibirsk State University
University of Cincinnati
German Electron Synchrotron
Tata Institute of Fundamental Research
University of Ljubljana
Nagoya University
Tohoku Gakuin University
Kyungpook National University
Tohoku University
University of Melbourne
Soongsil University
Korea University
Karlsruhe Institute of Technology
Tokyo Metropolitan University
Seoul National University
Virginia Polytechnic Institute and State University
National Institute for Nuclear Physics
Hiroshima Institute of Technology
Tokyo University of Agriculture and Technology
Toho University
Kanagawa University
Luther College, Decorah
University of Pittsburgh
Swiss Federal Institute of Technology Lausanne
University of the Basque Country
Ikerbasque Basque Foundation for Science
Austrian Academy of Sciences
Yamagata University
Beihang University
Institute of Science Tokyo
University of Turin
Osaka Metropolitan University
Moscow Institute of Physics and Technology
University of Bonn
Justus Liebig University Giessen
National United University Taiwan
Nippon Dental University
Niigata University

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

We report a study of the suppressed decay B^-→DK ^-, D→K⁺π^-π0, where D denotes either a D0 or a D^̄0 meson. The decay is sensitive to the CP -violating parameter ₃. Using a data sample of 772×106 BB̄ pairs collected at the Υ(4S) resonance with the Belle detector, we measure the ratio of branching fractions of the above suppressed decay to the favored decay B^-→DK^-, D→K^-π⁺π0. Our result is R_DK=[1.98±0.62(stat)±0.24(syst)] ×10^-2, which indicates the first evidence of the signal for this suppressed decay with a significance of 3.2 standard deviations. We measure the direct CP asymmetry between the suppressed B^- and B⁺ decays to be A_DK=0.41±0.30(stat)±0.05(syst). We also report measurements for the analogous quantities R_Dπ and A _Dπ for the decay B^-→Dπ^-, D→K⁺π^-π0.

Original language	English
Article number	091104
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	88
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.88.091104
State	Published - 14 Nov 2013

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10.1103/PhysRevD.88.091104

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Nayak, M., Libby, J., Trabelsi, K., Adachi, I., Aihara, H., Asner, D. M., Aushev, T., Bakich, A. M., Bala, A., Behera, P., Belous, K., Bhardwaj, V., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chang, M. C., Chang, P., ... Zupanc, A. (2013). Evidence for the suppressed decay B-^→DK-, D→K+ ^π-π0. Physical Review D - Particles, Fields, Gravitation and Cosmology, 88(9), Article 091104. https://doi.org/10.1103/PhysRevD.88.091104

@article{07a5fdf9660540f3acc2ab8f36b4d4b3,

title = "Evidence for the suppressed decay B-→DK-, D→K+ π-π0",

abstract = "We report a study of the suppressed decay B-→DK -, D→K+π-π0, where D denotes either a D0 or a {\=D}0 meson. The decay is sensitive to the CP -violating parameter 3. Using a data sample of 772×106 B{\=B} pairs collected at the Υ(4S) resonance with the Belle detector, we measure the ratio of branching fractions of the above suppressed decay to the favored decay B-→DK-, D→K-π+π0. Our result is RDK=[1.98±0.62(stat)±0.24(syst)] ×10-2, which indicates the first evidence of the signal for this suppressed decay with a significance of 3.2 standard deviations. We measure the direct CP asymmetry between the suppressed B- and B+ decays to be ADK=0.41±0.30(stat)±0.05(syst). We also report measurements for the analogous quantities RDπ and A Dπ for the decay B-→Dπ-, D→K+π-π0.",

author = "M. Nayak and J. Libby and K. Trabelsi and I. Adachi and H. Aihara and Asner, \{D. M.\} and T. Aushev and Bakich, \{A. M.\} and A. Bala and P. Behera and K. Belous and V. Bhardwaj and G. Bonvicini and A. Bozek and M. Bra{\v c}ko and Browder, \{T. E.\} and D. {\v C}ervenkov and Chang, \{M. C.\} and P. Chang and V. Chekelian and A. Chen and Cheon, \{B. G.\} and R. Chistov and Cho, \{I. S.\} and K. Cho and V. Chobanova and Y. Choi and D. Cinabro and J. Dalseno and M. Danilov and Z. Dole{\v z}al and Z. Dr{\'a}sal and D. Dutta and S. Eidelman and S. Esen and H. Farhat and Fast, \{J. E.\} and T. Ferber and V. Gaur and N. Gabyshev and S. Ganguly and R. Gillard and Goh, \{Y. M.\} and B. Golob and J. Haba and H. Hayashii and Y. Horii and Y. Hoshi and Hou, \{W. S.\} and Hyun, \{H. J.\} and T. Iijima and A. Ishikawa and T. Iwashita and I. Jaegle and T. Julius and Kah, \{D. H.\} and E. Kato and Kim, \{D. Y.\} and Kim, \{H. J.\} and Kim, \{J. B.\} and Kim, \{M. J.\} and Kim, \{Y. J.\} and K. Kinoshita and J. Klucar and Ko, \{B. R.\} and P. Kody{\v s} and S. Korpar and P. Krishnan and P. Kri{\v z}an and P. Krokovny and T. Kuhr and T. Kumita and A. Kuzmin and Kwon, \{Y. J.\} and Lee, \{S. H.\} and J. Li and Y. Li and \{Li Gioi\}, L. and Y. Liu and D. Liventsev and P. Lukin and H. Miyake and R. Mizuk and Mohanty, \{G. B.\} and A. Moll and T. Mori and N. Muramatsu and R. Mussa and Y. Nagasaka and M. Nakao and E. Nedelkovska and K. Negishi and C. Ng and Nisar, \{N. K.\} and O. Nitoh and S. Ogawa and S. Okuno and Y. Onuki and P. Pakhlov and G. Pakhlova and Park, \{C. W.\} and H. Park and Pedlar, \{T. K.\} and M. Petri{\v c} and Piilonen, \{L. E.\} and M. Ritter and M. R{\"o}hrken and A. Rostomyan and H. Sahoo and T. Saito and Y. Sakai and S. Sandilya and L. Santelj and T. Sanuki and V. Savinov and O. Schneider and G. Schnell and C. Schwanda and Schwartz, \{A. J.\} and K. Senyo and O. Seon and Sevior, \{M. E.\} and M. Shapkin and Shen, \{C. P.\} and Shibata, \{T. A.\} and Shiu, \{J. G.\} and B. Shwartz and A. Sibidanov and F. Simon and Sohn, \{Y. S.\} and A. Sokolov and E. Solovieva and M. Stari{\v c} and M. Steder and Z. Suzuki and U. Tamponi and G. Tatishvili and Y. Teramoto and M. Uchida and T. Uglov and Y. Unno and S. Uno and P. Urquijo and Vahsen, \{S. E.\} and \{Van Hulse\}, C. and P. Vanhoefer and G. Varner and Varvell, \{K. E.\} and Wagner, \{M. N.\} and Wang, \{C. H.\} and Wang, \{M. Z.\} and Y. Watanabe and Williams, \{K. M.\} and E. Won and Y. Yamashita and S. Yashchenko and Y. Yusa and V. Zhilich and V. Zhulanov and A. Zupanc",

year = "2013",

month = nov,

day = "14",

doi = "10.1103/PhysRevD.88.091104",

language = "English",

volume = "88",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

publisher = "American Physical Society",

number = "9",

}

Nayak, M, Libby, J, Trabelsi, K, Adachi, I, Aihara, H, Asner, DM, Aushev, T, Bakich, AM, Bala, A, Behera, P, Belous, K, Bhardwaj, V, Bonvicini, G, Bozek, A, Bračko, M, Browder, TE, Červenkov, D, Chang, MC, Chang, P, Chekelian, V, Chen, A, Cheon, BG, Chistov, R, Cho, IS, Cho, K, Chobanova, V, Choi, Y, Cinabro, D, Dalseno, J, Danilov, M, Doležal, Z, Drásal, Z, Dutta, D, Eidelman, S, Esen, S, Farhat, H, Fast, JE, Ferber, T, Gaur, V, Gabyshev, N, Ganguly, S, Gillard, R, Goh, YM, Golob, B, Haba, J, Hayashii, H, Horii, Y, Hoshi, Y, Hou, WS, Hyun, HJ, Iijima, T, Ishikawa, A, Iwashita, T, Jaegle, I, Julius, T, Kah, DH, Kato, E, Kim, DY, Kim, HJ, Kim, JB, Kim, MJ, Kim, YJ, Kinoshita, K, Klucar, J, Ko, BR, Kodyš, P, Korpar, S, Krishnan, P, Križan, P, Krokovny, P, Kuhr, T, Kumita, T, Kuzmin, A, Kwon, YJ, Lee, SH, Li, J, Li, Y, Li Gioi, L, Liu, Y, Liventsev, D, Lukin, P, Miyake, H, Mizuk, R, Mohanty, GB, Moll, A, Mori, T, Muramatsu, N, Mussa, R, Nagasaka, Y, Nakao, M, Nedelkovska, E, Negishi, K, Ng, C, Nisar, NK, Nitoh, O, Ogawa, S, Okuno, S, Onuki, Y, Pakhlov, P, Pakhlova, G, Park, CW, Park, H, Pedlar, TK, Petrič, M, Piilonen, LE, Ritter, M, Röhrken, M, Rostomyan, A, Sahoo, H, Saito, T, Sakai, Y, Sandilya, S, Santelj, L, Sanuki, T, Savinov, V, Schneider, O, Schnell, G, Schwanda, C, Schwartz, AJ, Senyo, K, Seon, O, Sevior, ME, Shapkin, M, Shen, CP, Shibata, TA, Shiu, JG, Shwartz, B, Sibidanov, A, Simon, F, Sohn, YS, Sokolov, A, Solovieva, E, Starič, M, Steder, M, Suzuki, Z, Tamponi, U, Tatishvili, G, Teramoto, Y, Uchida, M, Uglov, T, Unno, Y, Uno, S, Urquijo, P, Vahsen, SE, Van Hulse, C, Vanhoefer, P, Varner, G, Varvell, KE, Wagner, MN, Wang, CH, Wang, MZ, Watanabe, Y, Williams, KM, Won, E, Yamashita, Y, Yashchenko, S, Yusa, Y, Zhilich, V, Zhulanov, V & Zupanc, A 2013, 'Evidence for the suppressed decay B-^→DK-, D→K+ ^π-π0', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 88, no. 9, 091104. https://doi.org/10.1103/PhysRevD.88.091104

TY - JOUR

T1 - Evidence for the suppressed decay B-→DK-, D→K+ π-π0

AU - Nayak, M.

AU - Libby, J.

AU - Trabelsi, K.

AU - Adachi, I.

AU - Aihara, H.

AU - Asner, D. M.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Bala, A.

AU - Behera, P.

AU - Belous, K.

AU - Bhardwaj, V.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Červenkov, D.

AU - Chang, M. C.

AU - Chang, P.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chistov, R.

AU - Cho, I. S.

AU - Cho, K.

AU - Chobanova, V.

AU - Choi, Y.

AU - Cinabro, D.

AU - Dalseno, J.

AU - Danilov, M.

AU - Doležal, Z.

AU - Drásal, Z.

AU - Dutta, D.

AU - Eidelman, S.

AU - Esen, S.

AU - Farhat, H.

AU - Fast, J. E.

AU - Ferber, T.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Ganguly, S.

AU - Gillard, R.

AU - Goh, Y. M.

AU - Golob, B.

AU - Haba, J.

AU - Hayashii, H.

AU - Horii, Y.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hyun, H. J.

AU - Iijima, T.

AU - Ishikawa, A.

AU - Iwashita, T.

AU - Jaegle, I.

AU - Julius, T.

AU - Kah, D. H.

AU - Kato, E.

AU - Kim, D. Y.

AU - Kim, H. J.

AU - Kim, J. B.

AU - Kim, M. J.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Klucar, J.

AU - Ko, B. R.

AU - Kodyš, P.

AU - Korpar, S.

AU - Krishnan, P.

AU - Križan, P.

AU - Krokovny, P.

AU - Kuhr, T.

AU - Kumita, T.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Lee, S. H.

AU - Li, J.

AU - Li, Y.

AU - Li Gioi, L.

AU - Liu, Y.

AU - Liventsev, D.

AU - Lukin, P.

AU - Miyake, H.

AU - Mizuk, R.

AU - Mohanty, G. B.

AU - Moll, A.

AU - Mori, T.

AU - Muramatsu, N.

AU - Mussa, R.

AU - Nagasaka, Y.

AU - Nakao, M.

AU - Nedelkovska, E.

AU - Negishi, K.

AU - Ng, C.

AU - Nisar, N. K.

AU - Nitoh, O.

AU - Ogawa, S.

AU - Okuno, S.

AU - Onuki, Y.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Park, C. W.

AU - Park, H.

AU - Pedlar, T. K.

AU - Petrič, M.

AU - Piilonen, L. E.

AU - Ritter, M.

AU - Röhrken, M.

AU - Rostomyan, A.

AU - Sahoo, H.

AU - Saito, T.

AU - Sakai, Y.

AU - Sandilya, S.

AU - Santelj, L.

AU - Sanuki, T.

AU - Savinov, V.

AU - Schneider, O.

AU - Schnell, G.

AU - Schwanda, C.

AU - Schwartz, A. J.

AU - Senyo, K.

AU - Seon, O.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shen, C. P.

AU - Shibata, T. A.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Sibidanov, A.

AU - Simon, F.

AU - Sohn, Y. S.

AU - Sokolov, A.

AU - Solovieva, E.

AU - Starič, M.

AU - Steder, M.

AU - Suzuki, Z.

AU - Tamponi, U.

AU - Tatishvili, G.

AU - Teramoto, Y.

AU - Uchida, M.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Urquijo, P.

AU - Vahsen, S. E.

AU - Van Hulse, C.

AU - Vanhoefer, P.

AU - Varner, G.

AU - Varvell, K. E.

AU - Wagner, M. N.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Watanabe, Y.

AU - Williams, K. M.

AU - Won, E.

AU - Yamashita, Y.

AU - Yashchenko, S.

AU - Yusa, Y.

AU - Zhilich, V.

AU - Zhulanov, V.

AU - Zupanc, A.

PY - 2013/11/14

Y1 - 2013/11/14

N2 - We report a study of the suppressed decay B-→DK -, D→K+π-π0, where D denotes either a D0 or a D̄0 meson. The decay is sensitive to the CP -violating parameter 3. Using a data sample of 772×106 BB̄ pairs collected at the Υ(4S) resonance with the Belle detector, we measure the ratio of branching fractions of the above suppressed decay to the favored decay B-→DK-, D→K-π+π0. Our result is RDK=[1.98±0.62(stat)±0.24(syst)] ×10-2, which indicates the first evidence of the signal for this suppressed decay with a significance of 3.2 standard deviations. We measure the direct CP asymmetry between the suppressed B- and B+ decays to be ADK=0.41±0.30(stat)±0.05(syst). We also report measurements for the analogous quantities RDπ and A Dπ for the decay B-→Dπ-, D→K+π-π0.

AB - We report a study of the suppressed decay B-→DK -, D→K+π-π0, where D denotes either a D0 or a D̄0 meson. The decay is sensitive to the CP -violating parameter 3. Using a data sample of 772×106 BB̄ pairs collected at the Υ(4S) resonance with the Belle detector, we measure the ratio of branching fractions of the above suppressed decay to the favored decay B-→DK-, D→K-π+π0. Our result is RDK=[1.98±0.62(stat)±0.24(syst)] ×10-2, which indicates the first evidence of the signal for this suppressed decay with a significance of 3.2 standard deviations. We measure the direct CP asymmetry between the suppressed B- and B+ decays to be ADK=0.41±0.30(stat)±0.05(syst). We also report measurements for the analogous quantities RDπ and A Dπ for the decay B-→Dπ-, D→K+π-π0.

UR - https://www.scopus.com/pages/publications/84888121403

U2 - 10.1103/PhysRevD.88.091104

DO - 10.1103/PhysRevD.88.091104

M3 - Article

AN - SCOPUS:84888121403

SN - 1550-7998

VL - 88

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 9

M1 - 091104

ER -

Evidence for the suppressed decay B-^→DK-, D→K+ ^π-π0

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