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

Y. Horii; K. Trabelsi; H. Yamamoto; I. Adachi; H. Aihara; K. Arinstein; V. Aulchenko; T. Aushev; V. Balagura; E. Barberio; K. Belous; B. Bhuyan; M. Bischofberger; A. Bozek; M. Bračko; T. E. Browder; M. C. Chang; P. Chang; A. Chen; P. Chen; B. G. Cheon; C. C. Chiang; I. S. Cho; K. Cho; Y. Choi; Z. Doleal; S. Eidelman; M. Feindt; V. Gaur; N. Gabyshev; A. Garmash; B. Golob; H. Ha; J. Haba; K. Hayasaka; Y. Hoshi; W. S. Hou; Y. B. Hsiung; H. J. Hyun; T. Iijima; K. Inami; A. Ishikawa; R. Itoh; M. Iwabuchi; Y. Iwasaki; T. Iwashita; N. J. Joshi; T. Julius; J. H. Kang; T. Kawasaki; H. Kichimi; C. Kiesling; H. J. Kim; H. O. Kim; M. J. Kim; Y. J. Kim; K. Kinoshita; B. R. Ko; N. Kobayashi; S. Korpar; P. Krian; T. Kuhr; R. Kumar; Y. J. Kwon; M. J. Lee; S. H. Lee; J. Li; C. Liu; D. Liventsev; R. Louvot; A. Matyja; S. McOnie; K. Miyabayashi; H. Miyata; Y. Miyazaki; G. B. Mohanty; A. Moll; T. Mori; N. Muramatsu; E. Nakano; H. Nakazawa; Z. Natkaniec; S. Neubauer; S. Nishida; O. Nitoh; T. Ohshima; S. Okuno; Y. Onuki; P. Pakhlov; G. Pakhlova; C. W. Park; H. K. Park; R. Pestotnik; M. Petrič; L. E. Piilonen; A. Poluektov; M. Prim; K. Prothmann; M. Röhrken; S. Ryu; H. Sahoo; Y. Sakai; O. Schneider; C. Schwanda; A. J. Schwartz; K. Senyo; O. Seon; M. E. Sevior; M. Shapkin; V. Shebalin; C. P. Shen; T. A. Shibata; J. G. Shiu; F. Simon; P. Smerkol; Y. S. Sohn; E. Solovieva; S. Stanič; M. Starič; M. Sumihama; T. Sumiyoshi; S. Suzuki; S. Tanaka; Y. Teramoto; M. Uchida; S. Uehara; T. Uglov; Y. Unno; S. Uno; Y. Usov; G. Varner; A. Vinokurova; A. Vossen; C. H. Wang; P. Wang; M. Watanabe; Y. Watanabe; J. Wicht; E. Won; B. D. Yabsley; Y. Yamashita; D. Zander; Z. P. Zhang; V. Zhulanov; A. Zupanc

doi:10.1103/PhysRevLett.106.231803

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

Y. Horii, K. Trabelsi, H. Yamamoto, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, V. Balagura, E. Barberio, K. Belous, B. Bhuyan, M. Bischofberger, A. Bozek, M. Bračko, T. E. Browder, M. C. Chang, P. Chang, A. Chen, P. ChenB. G. Cheon, C. C. Chiang, I. S. Cho, K. Cho, Y. Choi, Z. Doleal, S. Eidelman, M. Feindt, V. Gaur, N. Gabyshev, A. Garmash, B. Golob, H. Ha, J. Haba, K. Hayasaka, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, M. Iwabuchi, Y. Iwasaki, T. Iwashita, N. J. Joshi, T. Julius, J. H. Kang, T. Kawasaki, H. Kichimi, C. Kiesling, H. J. Kim, H. O. Kim, M. J. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, N. Kobayashi, S. Korpar, P. Krian, T. Kuhr, R. Kumar, Y. J. Kwon, M. J. Lee, S. H. Lee, J. Li, C. Liu, D. Liventsev, R. Louvot, A. Matyja, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, G. B. Mohanty, A. Moll, T. Mori, N. Muramatsu, E. Nakano, H. Nakazawa, Z. Natkaniec, S. Neubauer, S. Nishida, O. Nitoh, T. Ohshima, S. Okuno, Y. Onuki, P. Pakhlov, G. Pakhlova, C. W. Park, H. K. Park, R. Pestotnik, M. Petrič, L. E. Piilonen, A. Poluektov, M. Prim, K. Prothmann, M. Röhrken, S. Ryu, H. Sahoo, Y. Sakai, O. Schneider, C. Schwanda, A. J. Schwartz, K. Senyo, O. Seon, M. E. Sevior, M. Shapkin, V. Shebalin, C. P. Shen, T. A. Shibata, J. G. Shiu, F. Simon, P. Smerkol, Y. S. Sohn, E. Solovieva, S. Stanič, M. Starič, M. Sumihama, T. Sumiyoshi, S. Suzuki, S. Tanaka, Y. Teramoto, M. Uchida, S. Uehara, T. Uglov, Y. Unno, S. Uno, Y. Usov, G. Varner, A. Vinokurova, A. Vossen, C. H. Wang, P. Wang, M. Watanabe, Y. Watanabe, J. Wicht, E. Won, B. D. Yabsley, Y. Yamashita, D. Zander, Z. P. Zhang, V. Zhulanov, A. Zupanc

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Abstract

The suppressed decay chain B^-→DK^-, D→K ⁺π^-, where D indicates a D^̄0 or D0 state, provides important information on the CP-violating angle ?₃. We measure the ratio R_DK of the decay rates to the favored mode B^-→DK^-, D→K^-π⁺ to be R_DK=[1.63-0.41+0.44(stat)-0.13+0.07(syst)]×10^-2, which indicates the first evidence of the signal with a significance of 4.1σ. We also measure the asymmetry A_DK between the charge-conjugate decays to be A_DK=-0.39-0.28+0.26(stat)-0.03+0. 04(syst). The results are based on the full 772×106 BB̄ pair data sample collected at the Υ(4S) resonance with the Belle detector.

Original language	English
Article number	231803
Journal	Physical Review Letters
Volume	106
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.106.231803
State	Published - 10 Jun 2011

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10.1103/PhysRevLett.106.231803

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Horii, Y., Trabelsi, K., Yamamoto, H., Adachi, I., Aihara, H., Arinstein, K., Aulchenko, V., Aushev, T., Balagura, V., Barberio, E., Belous, K., Bhuyan, B., Bischofberger, M., Bozek, A., Bračko, M., Browder, T. E., Chang, M. C., Chang, P., Chen, A., ... Zupanc, A. (2011). Evidence for the suppressed decay B^-→DK^-, D→K⁺π^-. Physical Review Letters, 106(23), Article 231803. https://doi.org/10.1103/PhysRevLett.106.231803

@article{ca988ea0ded142b4b23219ea5a7511bc,

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

abstract = "The suppressed decay chain B-→DK-, D→K +π-, where D indicates a {\=D}0 or D0 state, provides important information on the CP-violating angle ?3. We measure the ratio RDK of the decay rates to the favored mode B-→DK-, D→K-π+ to be RDK=[1.63-0.41+0.44(stat)-0.13+0.07(syst)]×10-2, which indicates the first evidence of the signal with a significance of 4.1σ. We also measure the asymmetry ADK between the charge-conjugate decays to be ADK=-0.39-0.28+0.26(stat)-0.03+0. 04(syst). The results are based on the full 772×106 B{\=B} pair data sample collected at the Υ(4S) resonance with the Belle detector.",

author = "Y. Horii and K. Trabelsi and H. Yamamoto and I. Adachi and H. Aihara and K. Arinstein and V. Aulchenko and T. Aushev and V. Balagura and E. Barberio and K. Belous and B. Bhuyan and M. Bischofberger and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and Chang, {M. C.} and P. Chang and A. Chen and P. Chen and Cheon, {B. G.} and Chiang, {C. C.} and Cho, {I. S.} and K. Cho and Y. Choi and Z. Doleal and S. Eidelman and M. Feindt and V. Gaur and N. Gabyshev and A. Garmash and B. Golob and H. Ha and J. Haba and K. Hayasaka and Y. Hoshi and Hou, {W. S.} and Hsiung, {Y. B.} and Hyun, {H. J.} and T. Iijima and K. Inami and A. Ishikawa and R. Itoh and M. Iwabuchi and Y. Iwasaki and T. Iwashita and Joshi, {N. J.} and T. Julius and Kang, {J. H.} and T. Kawasaki and H. Kichimi and C. Kiesling and Kim, {H. J.} and Kim, {H. O.} and Kim, {M. J.} and Kim, {Y. J.} and K. Kinoshita and Ko, {B. R.} and N. Kobayashi and S. Korpar and P. Krian and T. Kuhr and R. Kumar and Kwon, {Y. J.} and Lee, {M. J.} and Lee, {S. H.} and J. Li and C. Liu and D. Liventsev and R. Louvot and A. Matyja and S. McOnie and K. Miyabayashi and H. Miyata and Y. Miyazaki and Mohanty, {G. B.} and A. Moll and T. Mori and N. Muramatsu and E. Nakano and H. Nakazawa and Z. Natkaniec and S. Neubauer and S. Nishida and O. Nitoh and T. Ohshima and S. Okuno and Y. Onuki and P. Pakhlov and G. Pakhlova and Park, {C. W.} and Park, {H. K.} and R. Pestotnik and M. Petri{\v c} and Piilonen, {L. E.} and A. Poluektov and M. Prim and K. Prothmann and M. R{\"o}hrken and S. Ryu and H. Sahoo and Y. Sakai and O. Schneider and C. Schwanda and Schwartz, {A. J.} and K. Senyo and O. Seon and Sevior, {M. E.} and M. Shapkin and V. Shebalin and Shen, {C. P.} and Shibata, {T. A.} and Shiu, {J. G.} and F. Simon and P. Smerkol and Sohn, {Y. S.} and E. Solovieva and S. Stani{\v c} and M. Stari{\v c} and M. Sumihama and T. Sumiyoshi and S. Suzuki and S. Tanaka and Y. Teramoto and M. Uchida and S. Uehara and T. Uglov and Y. Unno and S. Uno and Y. Usov and G. Varner and A. Vinokurova and A. Vossen and Wang, {C. H.} and P. Wang and M. Watanabe and Y. Watanabe and J. Wicht and E. Won and Yabsley, {B. D.} and Y. Yamashita and D. Zander and Zhang, {Z. P.} and V. Zhulanov and A. Zupanc",

year = "2011",

month = jun,

day = "10",

doi = "10.1103/PhysRevLett.106.231803",

language = "English",

volume = "106",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "23",

}

Horii, Y, Trabelsi, K, Yamamoto, H, Adachi, I, Aihara, H, Arinstein, K, Aulchenko, V, Aushev, T, Balagura, V, Barberio, E, Belous, K, Bhuyan, B, Bischofberger, M, Bozek, A, Bračko, M, Browder, TE, Chang, MC, Chang, P, Chen, A, Chen, P, Cheon, BG, Chiang, CC, Cho, IS, Cho, K, Choi, Y, Doleal, Z, Eidelman, S, Feindt, M, Gaur, V, Gabyshev, N, Garmash, A, Golob, B, Ha, H, Haba, J, Hayasaka, K, Hoshi, Y, Hou, WS, Hsiung, YB, Hyun, HJ, Iijima, T, Inami, K, Ishikawa, A, Itoh, R, Iwabuchi, M, Iwasaki, Y, Iwashita, T, Joshi, NJ, Julius, T, Kang, JH, Kawasaki, T, Kichimi, H, Kiesling, C, Kim, HJ, Kim, HO, Kim, MJ, Kim, YJ, Kinoshita, K, Ko, BR, Kobayashi, N, Korpar, S, Krian, P, Kuhr, T, Kumar, R, Kwon, YJ, Lee, MJ, Lee, SH, Li, J, Liu, C, Liventsev, D, Louvot, R, Matyja, A, McOnie, S, Miyabayashi, K, Miyata, H, Miyazaki, Y, Mohanty, GB, Moll, A, Mori, T, Muramatsu, N, Nakano, E, Nakazawa, H, Natkaniec, Z, Neubauer, S, Nishida, S, Nitoh, O, Ohshima, T, Okuno, S, Onuki, Y, Pakhlov, P, Pakhlova, G, Park, CW, Park, HK, Pestotnik, R, Petrič, M, Piilonen, LE, Poluektov, A, Prim, M, Prothmann, K, Röhrken, M, Ryu, S, Sahoo, H, Sakai, Y, Schneider, O, Schwanda, C, Schwartz, AJ, Senyo, K, Seon, O, Sevior, ME, Shapkin, M, Shebalin, V, Shen, CP, Shibata, TA, Shiu, JG, Simon, F, Smerkol, P, Sohn, YS, Solovieva, E, Stanič, S, Starič, M, Sumihama, M, Sumiyoshi, T, Suzuki, S, Tanaka, S, Teramoto, Y, Uchida, M, Uehara, S, Uglov, T, Unno, Y, Uno, S, Usov, Y, Varner, G, Vinokurova, A, Vossen, A, Wang, CH, Wang, P, Watanabe, M, Watanabe, Y, Wicht, J, Won, E, Yabsley, BD, Yamashita, Y, Zander, D, Zhang, ZP, Zhulanov, V & Zupanc, A 2011, 'Evidence for the suppressed decay B^-→DK^-, D→K⁺π^-', Physical Review Letters, vol. 106, no. 23, 231803. https://doi.org/10.1103/PhysRevLett.106.231803

TY - JOUR

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

AU - Horii, Y.

AU - Trabelsi, K.

AU - Yamamoto, H.

AU - Adachi, I.

AU - Aihara, H.

AU - Arinstein, K.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Balagura, V.

AU - Barberio, E.

AU - Belous, K.

AU - Bhuyan, B.

AU - Bischofberger, M.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chang, M. C.

AU - Chang, P.

AU - Chen, A.

AU - Chen, P.

AU - Cheon, B. G.

AU - Chiang, C. C.

AU - Cho, I. S.

AU - Cho, K.

AU - Choi, Y.

AU - Doleal, Z.

AU - Eidelman, S.

AU - Feindt, M.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Golob, B.

AU - Ha, H.

AU - Haba, J.

AU - Hayasaka, K.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hsiung, Y. B.

AU - Hyun, H. J.

AU - Iijima, T.

AU - Inami, K.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwabuchi, M.

AU - Iwasaki, Y.

AU - Iwashita, T.

AU - Joshi, N. J.

AU - Julius, T.

AU - Kang, J. H.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kiesling, C.

AU - Kim, H. J.

AU - Kim, H. O.

AU - Kim, M. J.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Ko, B. R.

AU - Kobayashi, N.

AU - Korpar, S.

AU - Krian, P.

AU - Kuhr, T.

AU - Kumar, R.

AU - Kwon, Y. J.

AU - Lee, M. J.

AU - Lee, S. H.

AU - Li, J.

AU - Liu, C.

AU - Liventsev, D.

AU - Louvot, R.

AU - Matyja, A.

AU - McOnie, S.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Miyazaki, Y.

AU - Mohanty, G. B.

AU - Moll, A.

AU - Mori, T.

AU - Muramatsu, N.

AU - Nakano, E.

AU - Nakazawa, H.

AU - Natkaniec, Z.

AU - Neubauer, S.

AU - Nishida, S.

AU - Nitoh, O.

AU - Ohshima, T.

AU - Okuno, S.

AU - Onuki, Y.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Park, C. W.

AU - Park, H. K.

AU - Pestotnik, R.

AU - Petrič, M.

AU - Piilonen, L. E.

AU - Poluektov, A.

AU - Prim, M.

AU - Prothmann, K.

AU - Röhrken, M.

AU - Ryu, S.

AU - Sahoo, H.

AU - Sakai, Y.

AU - Schneider, O.

AU - Schwanda, C.

AU - Schwartz, A. J.

AU - Senyo, K.

AU - Seon, O.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shebalin, V.

AU - Shen, C. P.

AU - Shibata, T. A.

AU - Shiu, J. G.

AU - Simon, F.

AU - Smerkol, P.

AU - Sohn, Y. S.

AU - Solovieva, E.

AU - Stanič, S.

AU - Starič, M.

AU - Sumihama, M.

AU - Sumiyoshi, T.

AU - Suzuki, S.

AU - Tanaka, S.

AU - Teramoto, Y.

AU - Uchida, M.

AU - Uehara, S.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Usov, Y.

AU - Varner, G.

AU - Vinokurova, A.

AU - Vossen, A.

AU - Wang, C. H.

AU - Wang, P.

AU - Watanabe, M.

AU - Watanabe, Y.

AU - Wicht, J.

AU - Won, E.

AU - Yabsley, B. D.

AU - Yamashita, Y.

AU - Zander, D.

AU - Zhang, Z. P.

AU - Zhulanov, V.

AU - Zupanc, A.

PY - 2011/6/10

Y1 - 2011/6/10

N2 - The suppressed decay chain B-→DK-, D→K +π-, where D indicates a D̄0 or D0 state, provides important information on the CP-violating angle ?3. We measure the ratio RDK of the decay rates to the favored mode B-→DK-, D→K-π+ to be RDK=[1.63-0.41+0.44(stat)-0.13+0.07(syst)]×10-2, which indicates the first evidence of the signal with a significance of 4.1σ. We also measure the asymmetry ADK between the charge-conjugate decays to be ADK=-0.39-0.28+0.26(stat)-0.03+0. 04(syst). The results are based on the full 772×106 BB̄ pair data sample collected at the Υ(4S) resonance with the Belle detector.

AB - The suppressed decay chain B-→DK-, D→K +π-, where D indicates a D̄0 or D0 state, provides important information on the CP-violating angle ?3. We measure the ratio RDK of the decay rates to the favored mode B-→DK-, D→K-π+ to be RDK=[1.63-0.41+0.44(stat)-0.13+0.07(syst)]×10-2, which indicates the first evidence of the signal with a significance of 4.1σ. We also measure the asymmetry ADK between the charge-conjugate decays to be ADK=-0.39-0.28+0.26(stat)-0.03+0. 04(syst). The results are based on the full 772×106 BB̄ pair data sample collected at the Υ(4S) resonance with the Belle detector.

UR - http://www.scopus.com/inward/record.url?scp=79960646718&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.106.231803

DO - 10.1103/PhysRevLett.106.231803

M3 - Article

AN - SCOPUS:79960646718

SN - 0031-9007

VL - 106

JO - Physical Review Letters

JF - Physical Review Letters

IS - 23

M1 - 231803

ER -

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

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