Evidence for direct CP violation in the decay B±→ D(*)K±, D→KS0π+π - and measurement of the CKM phase φ3

A. Poluektov; A. Bondar; B. D. Yabsley; I. Adachi; H. Aihara; K. Arinstein; V. Aulchenko; T. Aushev; A. M. Bakich; V. Balagura; E. Barberio; A. Bay; K. Belous; M. Bischofberger; A. Bozek; M. Bračko; T. E. Browder; M. C. Chang; P. Chang; A. Chen; K. F. Chen; P. Chen; B. G. Cheon; I. S. Cho; Y. Choi; J. Dalseno; M. Danilov; M. Dash; A. Drutskoy; W. Dungel; S. Eidelman; D. Epifanov; N. Gabyshev; A. Garmash; P. Goldenzweig; B. Golob; H. Ha; J. Haba; H. Hayashii; Y. Horii; Y. Hoshi; W. S. Hou; Y. B. Hsiung; H. J. Hyun; T. Iijima; K. Inami; M. Iwabuchi; M. Iwasaki; Y. Iwasaki; N. J. Joshi; T. Julius; D. H. Kah; J. H. Kang; P. Kapusta; N. Katayama; T. Kawasaki; C. Kiesling; H. J. Kim; H. O. Kim; J. H. Kim; M. J. Kim; Y. J. Kim; K. Kinoshita; B. R. Ko; P. Kodyš; S. Korpar; P. Križan; P. Krokovny; T. Kuhr; R. Kumar; A. Kuzmin; Y. J. Kwon; S. H. Kyeong; J. S. Lange; M. J. Lee; S. H. Lee; J. Li; C. Liu; D. Liventsev; R. Louvot; A. Matyja; S. McOnie; K. Miyabayashi; H. Miyata; Y. Miyazaki; R. Mizuk; G. B. Mohanty; M. Nakao; Z. Natkaniec; S. Neubauer; S. Nishida; K. Nishimura; O. Nitoh; S. Ogawa; T. Ohshima; S. Okuno; S. L. Olsen; G. Pakhlova; H. K. Park; M. Petrič; L. E. Piilonen; M. Röhrken; S. Ryu; H. Sahoo; Y. Sakai; O. Schneider; C. Schwanda; A. J. Schwartz; K. Senyo; M. E. Sevior; M. Shapkin; V. Shebalin; C. P. Shen; J. G. Shiu; B. Shwartz; J. B. Singh; P. Smerkol; A. Sokolov; S. Stanič; M. Starič; K. Sumisawa; T. Sumiyoshi; S. Suzuki; M. Tanaka; K. Trabelsi; T. Tsuboyama; S. Uehara; S. Uno; Y. Usov; G. Varner; K. E. Varvell; K. Vervink; A. Vinokurova; C. H. Wang; J. Wang; M. Z. Wang; P. Wang; X. L. Wang; M. Watanabe; Y. Watanabe; R. Wedd; E. Won; H. Yamamoto; Y. Yamashita; Z. P. Zhang; V. Zhilich; V. Zhulanov; T. Zivko; A. Zupanc; O. Zyukova

doi:10.1103/PhysRevD.81.112002

Evidence for direct CP violation in the decay B^±→ D(^*)K^±, D→KS0π⁺π ^- and measurement of the CKM phase φ3

A. Poluektov, A. Bondar, B. D. Yabsley, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, K. Belous, M. Bischofberger, A. Bozek, M. Bračko, T. E. Browder, M. C. Chang, P. Chang, A. ChenK. F. Chen, P. Chen, B. G. Cheon, I. S. Cho, Y. Choi, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, W. Dungel, S. Eidelman, D. Epifanov, N. Gabyshev, A. Garmash, P. Goldenzweig, B. Golob, H. Ha, J. Haba, H. Hayashii, Y. Horii, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, M. Iwabuchi, M. Iwasaki, Y. Iwasaki, N. J. Joshi, T. Julius, D. H. Kah, J. H. Kang, P. Kapusta, N. Katayama, T. Kawasaki, C. Kiesling, H. J. Kim, H. O. Kim, J. H. Kim, M. J. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, P. Kodyš, S. Korpar, P. Križan, P. Krokovny, T. Kuhr, R. Kumar, A. Kuzmin, Y. J. Kwon, S. H. Kyeong, J. S. Lange, M. J. Lee, S. H. Lee, J. Li, C. Liu, D. Liventsev, R. Louvot, A. Matyja, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, G. B. Mohanty, M. Nakao, Z. Natkaniec, S. Neubauer, S. Nishida, K. Nishimura, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, G. Pakhlova, H. K. Park, M. Petrič, L. E. Piilonen, M. Röhrken, S. Ryu, H. Sahoo, Y. Sakai, O. Schneider, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, V. Shebalin, C. P. Shen, J. G. Shiu, B. Shwartz, J. B. Singh, P. Smerkol, A. Sokolov, S. Stanič, M. Starič, K. Sumisawa, T. Sumiyoshi, S. Suzuki, M. Tanaka, K. Trabelsi, T. Tsuboyama, S. Uehara, S. Uno, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, A. Vinokurova, C. H. Wang, J. Wang, M. Z. Wang, P. Wang, X. L. Wang, M. Watanabe, Y. Watanabe, R. Wedd, E. Won, H. Yamamoto, Y. Yamashita, Z. P. Zhang, V. Zhilich, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

Department of Physics

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

127 Citations (Scopus)

Abstract

We present a new measurement of the unitarity triangle angle φ3 using a Dalitz plot analysis of the KS0π⁺π^- decay of the neutral D meson produced in B^±→D(^*) K^± decays. The method exploits the interference between D0 and D^̄0 to extract the angle φ3, strong phase δ, and the ratio r of suppressed and allowed amplitudes. We apply this method to a 605fb^-1 data sample collected by the Belle experiment. The analysis uses three decays: B^±→DK^±, and B ^±→D^*K^± with D ^*→Dπ0 and D^*→Dγ, as well as the corresponding charge-conjugate modes. From a combined maximum likelihood fit to the three modes, we obtain φ3=78.4^°+10.8°-11. 6°±3.6°(syst)±8.9°(model). CP conservation in this process is ruled out at the confidence level (1-CL)=5×10^-4, or 3.5 standard deviations.

Original language	English
Article number	112002
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	81
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.81.112002
Publication status	Published - 2010 Jun 16

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.81.112002

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Poluektov, A., Bondar, A., Yabsley, B. D., Adachi, I., Aihara, H., Arinstein, K., Aulchenko, V., Aushev, T., Bakich, A. M., Balagura, V., Barberio, E., Bay, A., Belous, K., Bischofberger, M., Bozek, A., Bračko, M., Browder, T. E., Chang, M. C., Chang, P., ... Zyukova, O. (2010). Evidence for direct CP violation in the decay B^±→ D(^*)K^±, D→KS0π⁺π ^- and measurement of the CKM phase φ3. Physical Review D - Particles, Fields, Gravitation and Cosmology, 81(11), [112002]. https://doi.org/10.1103/PhysRevD.81.112002

@article{e7dde808012a4e229c574622bb231e87,

title = "Evidence for direct CP violation in the decay B±→ D(*)K±, D→KS0π+π - and measurement of the CKM phase φ3",

abstract = "We present a new measurement of the unitarity triangle angle φ3 using a Dalitz plot analysis of the KS0π+π- decay of the neutral D meson produced in B±→D(*) K± decays. The method exploits the interference between D0 and {\=D}0 to extract the angle φ3, strong phase δ, and the ratio r of suppressed and allowed amplitudes. We apply this method to a 605fb-1 data sample collected by the Belle experiment. The analysis uses three decays: B±→DK±, and B ±→D*K± with D *→Dπ0 and D*→Dγ, as well as the corresponding charge-conjugate modes. From a combined maximum likelihood fit to the three modes, we obtain φ3=78.4°+10.8°-11. 6°±3.6°(syst)±8.9°(model). CP conservation in this process is ruled out at the confidence level (1-CL)=5×10-4, or 3.5 standard deviations.",

author = "A. Poluektov and A. Bondar and Yabsley, {B. D.} and I. Adachi and H. Aihara and K. Arinstein and V. Aulchenko and T. Aushev and Bakich, {A. M.} and V. Balagura and E. Barberio and A. Bay and K. Belous 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 Chen, {K. F.} and P. Chen and Cheon, {B. G.} and Cho, {I. S.} and Y. Choi and J. Dalseno and M. Danilov and M. Dash and A. Drutskoy and W. Dungel and S. Eidelman and D. Epifanov and N. Gabyshev and A. Garmash and P. Goldenzweig and B. Golob and H. Ha and J. Haba and H. Hayashii and Y. Horii and Y. Hoshi and Hou, {W. S.} and Hsiung, {Y. B.} and Hyun, {H. J.} and T. Iijima and K. Inami and M. Iwabuchi and M. Iwasaki and Y. Iwasaki and Joshi, {N. J.} and T. Julius and Kah, {D. H.} and Kang, {J. H.} and P. Kapusta and N. Katayama and T. Kawasaki and C. Kiesling and Kim, {H. J.} and Kim, {H. O.} and Kim, {J. H.} and Kim, {M. J.} and Kim, {Y. J.} and K. Kinoshita and Ko, {B. R.} and P. Kody{\v s} and S. Korpar and P. Kri{\v z}an and P. Krokovny and T. Kuhr and R. Kumar and A. Kuzmin and Kwon, {Y. J.} and Kyeong, {S. H.} and Lange, {J. S.} 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 R. Mizuk and Mohanty, {G. B.} and M. Nakao and Z. Natkaniec and S. Neubauer and S. Nishida and K. Nishimura and O. Nitoh and S. Ogawa and T. Ohshima and S. Okuno and Olsen, {S. L.} and G. Pakhlova and Park, {H. K.} and M. Petri{\v c} and Piilonen, {L. E.} 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 Sevior, {M. E.} and M. Shapkin and V. Shebalin and Shen, {C. P.} and Shiu, {J. G.} and B. Shwartz and Singh, {J. B.} and P. Smerkol and A. Sokolov and S. Stani{\v c} and M. Stari{\v c} and K. Sumisawa and T. Sumiyoshi and S. Suzuki and M. Tanaka and K. Trabelsi and T. Tsuboyama and S. Uehara and S. Uno and Y. Usov and G. Varner and Varvell, {K. E.} and K. Vervink and A. Vinokurova and Wang, {C. H.} and J. Wang and Wang, {M. Z.} and P. Wang and Wang, {X. L.} and M. Watanabe and Y. Watanabe and R. Wedd and E. Won and H. Yamamoto and Y. Yamashita and Zhang, {Z. P.} and V. Zhilich and V. Zhulanov and T. Zivko and A. Zupanc and O. Zyukova",

year = "2010",

month = jun,

day = "16",

doi = "10.1103/PhysRevD.81.112002",

language = "English",

volume = "81",

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

issn = "1550-7998",

number = "11",

}

Poluektov, A, Bondar, A, Yabsley, BD, Adachi, I, Aihara, H, Arinstein, K, Aulchenko, V, Aushev, T, Bakich, AM, Balagura, V, Barberio, E, Bay, A, Belous, K, Bischofberger, M, Bozek, A, Bračko, M, Browder, TE, Chang, MC, Chang, P, Chen, A, Chen, KF, Chen, P, Cheon, BG, Cho, IS, Choi, Y, Dalseno, J, Danilov, M, Dash, M, Drutskoy, A, Dungel, W, Eidelman, S, Epifanov, D, Gabyshev, N, Garmash, A, Goldenzweig, P, Golob, B, Ha, H, Haba, J, Hayashii, H, Horii, Y, Hoshi, Y, Hou, WS, Hsiung, YB, Hyun, HJ, Iijima, T, Inami, K, Iwabuchi, M, Iwasaki, M, Iwasaki, Y, Joshi, NJ, Julius, T, Kah, DH, Kang, JH, Kapusta, P, Katayama, N, Kawasaki, T, Kiesling, C, Kim, HJ, Kim, HO, Kim, JH, Kim, MJ, Kim, YJ, Kinoshita, K, Ko, BR, Kodyš, P, Korpar, S, Križan, P, Krokovny, P, Kuhr, T, Kumar, R, Kuzmin, A, Kwon, YJ, Kyeong, SH, Lange, JS, Lee, MJ, Lee, SH, Li, J, Liu, C, Liventsev, D, Louvot, R, Matyja, A, McOnie, S, Miyabayashi, K, Miyata, H, Miyazaki, Y, Mizuk, R, Mohanty, GB, Nakao, M, Natkaniec, Z, Neubauer, S, Nishida, S, Nishimura, K, Nitoh, O, Ogawa, S, Ohshima, T, Okuno, S, Olsen, SL, Pakhlova, G, Park, HK, Petrič, M, Piilonen, LE, Röhrken, M, Ryu, S, Sahoo, H, Sakai, Y, Schneider, O, Schwanda, C, Schwartz, AJ, Senyo, K, Sevior, ME, Shapkin, M, Shebalin, V, Shen, CP, Shiu, JG, Shwartz, B, Singh, JB, Smerkol, P, Sokolov, A, Stanič, S, Starič, M, Sumisawa, K, Sumiyoshi, T, Suzuki, S, Tanaka, M, Trabelsi, K, Tsuboyama, T, Uehara, S, Uno, S, Usov, Y, Varner, G, Varvell, KE, Vervink, K, Vinokurova, A, Wang, CH, Wang, J, Wang, MZ, Wang, P, Wang, XL, Watanabe, M, Watanabe, Y, Wedd, R, Won, E, Yamamoto, H, Yamashita, Y, Zhang, ZP, Zhilich, V, Zhulanov, V, Zivko, T, Zupanc, A & Zyukova, O 2010, 'Evidence for direct CP violation in the decay B^±→ D(^*)K^±, D→KS0π⁺π ^- and measurement of the CKM phase φ3', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 81, no. 11, 112002. https://doi.org/10.1103/PhysRevD.81.112002

TY - JOUR

T1 - Evidence for direct CP violation in the decay B±→ D(*)K±, D→KS0π+π - and measurement of the CKM phase φ3

AU - Poluektov, A.

AU - Bondar, A.

AU - Yabsley, B. D.

AU - Adachi, I.

AU - Aihara, H.

AU - Arinstein, K.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Balagura, V.

AU - Barberio, E.

AU - Bay, A.

AU - Belous, K.

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, K. F.

AU - Chen, P.

AU - Cheon, B. G.

AU - Cho, I. S.

AU - Choi, Y.

AU - Dalseno, J.

AU - Danilov, M.

AU - Dash, M.

AU - Drutskoy, A.

AU - Dungel, W.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Goldenzweig, P.

AU - Golob, B.

AU - Ha, H.

AU - Haba, J.

AU - Hayashii, H.

AU - Horii, Y.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hsiung, Y. B.

AU - Hyun, H. J.

AU - Iijima, T.

AU - Inami, K.

AU - Iwabuchi, M.

AU - Iwasaki, M.

AU - Iwasaki, Y.

AU - Joshi, N. J.

AU - Julius, T.

AU - Kah, D. H.

AU - Kang, J. H.

AU - Kapusta, P.

AU - Katayama, N.

AU - Kawasaki, T.

AU - Kiesling, C.

AU - Kim, H. J.

AU - Kim, H. O.

AU - Kim, J. H.

AU - Kim, M. J.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Ko, B. R.

AU - Kodyš, P.

AU - Korpar, S.

AU - Križan, P.

AU - Krokovny, P.

AU - Kuhr, T.

AU - Kumar, R.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Kyeong, S. H.

AU - Lange, J. S.

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 - Mizuk, R.

AU - Mohanty, G. B.

AU - Nakao, M.

AU - Natkaniec, Z.

AU - Neubauer, S.

AU - Nishida, S.

AU - Nishimura, K.

AU - Nitoh, O.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Pakhlova, G.

AU - Park, H. K.

AU - Petrič, M.

AU - Piilonen, L. E.

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 - Sevior, M. E.

AU - Shapkin, M.

AU - Shebalin, V.

AU - Shen, C. P.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Singh, J. B.

AU - Smerkol, P.

AU - Sokolov, A.

AU - Stanič, S.

AU - Starič, M.

AU - Sumisawa, K.

AU - Sumiyoshi, T.

AU - Suzuki, S.

AU - Tanaka, M.

AU - Trabelsi, K.

AU - Tsuboyama, T.

AU - Uehara, S.

AU - Uno, S.

AU - Usov, Y.

AU - Varner, G.

AU - Varvell, K. E.

AU - Vervink, K.

AU - Vinokurova, A.

AU - Wang, C. H.

AU - Wang, J.

AU - Wang, M. Z.

AU - Wang, P.

AU - Wang, X. L.

AU - Watanabe, M.

AU - Watanabe, Y.

AU - Wedd, R.

AU - Won, E.

AU - Yamamoto, H.

AU - Yamashita, Y.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhulanov, V.

AU - Zivko, T.

AU - Zupanc, A.

AU - Zyukova, O.

PY - 2010/6/16

Y1 - 2010/6/16

N2 - We present a new measurement of the unitarity triangle angle φ3 using a Dalitz plot analysis of the KS0π+π- decay of the neutral D meson produced in B±→D(*) K± decays. The method exploits the interference between D0 and D̄0 to extract the angle φ3, strong phase δ, and the ratio r of suppressed and allowed amplitudes. We apply this method to a 605fb-1 data sample collected by the Belle experiment. The analysis uses three decays: B±→DK±, and B ±→D*K± with D *→Dπ0 and D*→Dγ, as well as the corresponding charge-conjugate modes. From a combined maximum likelihood fit to the three modes, we obtain φ3=78.4°+10.8°-11. 6°±3.6°(syst)±8.9°(model). CP conservation in this process is ruled out at the confidence level (1-CL)=5×10-4, or 3.5 standard deviations.

AB - We present a new measurement of the unitarity triangle angle φ3 using a Dalitz plot analysis of the KS0π+π- decay of the neutral D meson produced in B±→D(*) K± decays. The method exploits the interference between D0 and D̄0 to extract the angle φ3, strong phase δ, and the ratio r of suppressed and allowed amplitudes. We apply this method to a 605fb-1 data sample collected by the Belle experiment. The analysis uses three decays: B±→DK±, and B ±→D*K± with D *→Dπ0 and D*→Dγ, as well as the corresponding charge-conjugate modes. From a combined maximum likelihood fit to the three modes, we obtain φ3=78.4°+10.8°-11. 6°±3.6°(syst)±8.9°(model). CP conservation in this process is ruled out at the confidence level (1-CL)=5×10-4, or 3.5 standard deviations.

UR - http://www.scopus.com/inward/record.url?scp=77954399403&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77954399403&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.81.112002

DO - 10.1103/PhysRevD.81.112002

M3 - Article

AN - SCOPUS:77954399403

VL - 81

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

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

SN - 1550-7998

IS - 11

M1 - 112002

ER -

Evidence for direct CP violation in the decay B^±→ D(^*)K^±, D→KS0π⁺π ^- and measurement of the CKM phase φ3

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