Measurements of branching fractions and time-dependent CP violating asymmetries in B0→D( *) ±D ∓ decays

M. Röhrken; I. Adachi; H. Aihara; D. M. Asner; V. Aulchenko; T. Aushev; A. M. Bakich; M. Barrett; K. Belous; V. Bhardwaj; B. Bhuyan; M. Bischofberger; A. Bondar; G. Bonvicini; A. Bozek; M. Bračko; O. Brovchenko; T. E. Browder; M. C. Chang; A. Chen; P. Chen; B. G. Cheon; K. Chilikin; I. S. Cho; K. Cho; Y. Choi; J. Dalseno; Z. Doležal; Z. Drásal; A. Drutskoy; S. Eidelman; J. E. Fast; M. Feindt; V. Gaur; N. Gabyshev; A. Garmash; Y. M. Goh; J. Haba; H. Hayashii; Y. Horii; Y. Hoshi; W. S. Hou; Y. B. Hsiung; H. J. Hyun; T. Iijima; A. Ishikawa; R. Itoh; M. Iwabuchi; Y. Iwasaki; T. Julius; J. H. Kang; T. Kawasaki; C. Kiesling; H. J. Kim; H. O. Kim; J. B. Kim; J. H. Kim; K. T. Kim; M. J. Kim; Y. J. Kim; K. Kinoshita; B. R. Ko; S. Koblitz; P. Kodyš; S. Korpar; R. T. Kouzes; P. Križan; P. Krokovny; B. Kronenbitter; T. Kuhr; T. Kumita; Y. J. Kwon; S. H. Lee; J. Li; Y. Li; J. Libby; C. Liu; Y. Liu; Z. Q. Liu; D. Liventsev; R. Louvot; K. Miyabayashi; H. Miyata; R. Mizuk; G. B. Mohanty; A. Moll; T. Mori; N. Muramatsu; Y. Nagasaka; E. Nakano; M. Nakao; Z. Natkaniec; S. Nishida; O. Nitoh; S. Ogawa; T. Ohshima; S. Okuno; S. L. Olsen; H. Ozaki; G. Pakhlova; C. W. Park; H. Park; H. K. Park; K. S. Park; T. K. Pedlar; R. Pestotnik; M. Petrič; L. E. Piilonen; A. Poluektov; M. Prim; K. Prothmann; M. Ritter; S. Ryu; H. Sahoo; Y. Sakai; T. Sanuki; Y. Sato; O. Schneider; 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; J. B. Singh; P. Smerkol; Y. S. Sohn; A. Sokolov; E. Solovieva; S. Stanič; M. Starič; K. Sumisawa; T. Sumiyoshi; K. Trabelsi; M. Uchida; S. Uehara; Y. Unno; S. Uno; P. Urquijo; P. Vanhoefer; G. Varner; K. E. Varvell; V. Vorobyev; C. H. Wang; M. Z. Wang; P. Wang; M. Watanabe; Y. Watanabe; K. M. Williams; E. Won; H. Yamamoto; Y. Yamashita; D. Zander; Z. P. Zhang; V. Zhilich; V. Zhulanov; A. Zupanc

doi:10.1103/PhysRevD.85.091106

Measurements of branching fractions and time-dependent CP violating asymmetries in B0→D( ^*) ^±D ^∓ decays

M. Röhrken, I. Adachi, H. Aihara, D. M. Asner, V. Aulchenko, T. Aushev, A. M. Bakich, M. Barrett, K. Belous, V. Bhardwaj, B. Bhuyan, M. Bischofberger, A. Bondar, G. Bonvicini, A. Bozek, M. Bračko, O. Brovchenko, T. E. Browder, M. C. Chang, A. ChenP. Chen, B. G. Cheon, K. Chilikin, I. S. Cho, K. Cho, Y. Choi, J. Dalseno, Z. Doležal, Z. Drásal, A. Drutskoy, S. Eidelman, J. E. Fast, M. Feindt, V. Gaur, N. Gabyshev, A. Garmash, Y. M. Goh, J. Haba, H. Hayashii, Y. Horii, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, A. Ishikawa, R. Itoh, M. Iwabuchi, Y. Iwasaki, T. Julius, J. H. Kang, T. Kawasaki, C. Kiesling, H. J. Kim, H. O. Kim, J. B. Kim, J. H. Kim, K. T. Kim, M. J. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, S. Koblitz, P. Kodyš, S. Korpar, R. T. Kouzes, P. Križan, P. Krokovny, B. Kronenbitter, T. Kuhr, T. Kumita, Y. J. Kwon, S. H. Lee, J. Li, Y. Li, J. Libby, C. Liu, Y. Liu, Z. Q. Liu, D. Liventsev, R. Louvot, K. Miyabayashi, H. Miyata, R. Mizuk, G. B. Mohanty, A. Moll, T. Mori, N. Muramatsu, Y. Nagasaka, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, G. Pakhlova, C. W. Park, H. Park, H. K. Park, K. S. Park, T. K. Pedlar, R. Pestotnik, M. Petrič, L. E. Piilonen, A. Poluektov, M. Prim, K. Prothmann, M. Ritter, S. Ryu, H. Sahoo, Y. Sakai, T. Sanuki, Y. Sato, O. Schneider, 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, J. B. Singh, P. Smerkol, Y. S. Sohn, A. Sokolov, E. Solovieva, S. Stanič, M. Starič, K. Sumisawa, T. Sumiyoshi, K. Trabelsi, M. Uchida, S. Uehara, Y. Unno, S. Uno, P. Urquijo, P. Vanhoefer, G. Varner, K. E. Varvell, V. Vorobyev, C. H. Wang, M. Z. Wang, P. Wang, M. Watanabe, Y. Watanabe, K. M. Williams, E. Won, H. Yamamoto, Y. Yamashita, D. Zander, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc

Department of Physics

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

13 Citations (Scopus)

Abstract

We report measurements of branching fractions and time-dependent CP asymmetries in B0→D ⁺D ^- and B0→D ^*±D ^∓ decays using a data sample that contains (772±11)×106BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e ⁺e ^- collider. We determine the branching fractions to be B(B0→D ⁺D ^-)=(2.12±0.16±0.18) ×10 ^-4 and B(B0→D ^* ^±D ^∓)=(6.14±0.29±0.50) ×10 ^-4. We measure CP asymmetry parameters SD ⁺D ^-=-1.06-0.14+0.21±0.08 and CD ⁺D ^-=-0. 43±0.16±0.05 in B0→D ⁺D ^- and AD ^*D=+0.06±0.05±0.02, SD ^*D=-0. 78±0.15±0.05, CD ^*D=-0.01±0.11±0.04, ΔSD ^*D=-0.13±0.15±0.04 and ΔCD ^*D=+0.12±0.11±0.03 in B0→D ^*±D ^∓, where the first uncertainty is statistical and the second is systematic. We exclude the conservation of CP symmetry in both decays at equal to or greater than 4σ significance.

Original language	English
Article number	091106
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	85
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.85.091106
Publication status	Published - 2012 May 18

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.85.091106

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Röhrken, M., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Bakich, A. M., Barrett, M., Belous, K., Bhardwaj, V., Bhuyan, B., Bischofberger, M., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Brovchenko, O., Browder, T. E., Chang, M. C., ... Zupanc, A. (2012). Measurements of branching fractions and time-dependent CP violating asymmetries in B0→D( ^*) ^±D ^∓ decays. Physical Review D - Particles, Fields, Gravitation and Cosmology, 85(9), [091106]. https://doi.org/10.1103/PhysRevD.85.091106

Röhrken, M. ; Adachi, I. ; Aihara, H. ; Asner, D. M. ; Aulchenko, V. ; Aushev, T. ; Bakich, A. M. ; Barrett, M. ; Belous, K. ; Bhardwaj, V. ; Bhuyan, B. ; Bischofberger, M. ; Bondar, A. ; Bonvicini, G. ; Bozek, A. ; Bračko, M. ; Brovchenko, O. ; Browder, T. E. ; Chang, M. C. ; Chen, A. ; Chen, P. ; Cheon, B. G. ; Chilikin, K. ; Cho, I. S. ; Cho, K. ; Choi, Y. ; Dalseno, J. ; Doležal, Z. ; Drásal, Z. ; Drutskoy, A. ; Eidelman, S. ; Fast, J. E. ; Feindt, M. ; Gaur, V. ; Gabyshev, N. ; Garmash, A. ; Goh, Y. M. ; Haba, J. ; Hayashii, H. ; Horii, Y. ; Hoshi, Y. ; Hou, W. S. ; Hsiung, Y. B. ; Hyun, H. J. ; Iijima, T. ; Ishikawa, A. ; Itoh, R. ; Iwabuchi, M. ; Iwasaki, Y. ; Julius, T. ; Kang, J. H. ; Kawasaki, T. ; Kiesling, C. ; Kim, H. J. ; Kim, H. O. ; Kim, J. B. ; Kim, J. H. ; Kim, K. T. ; Kim, M. J. ; Kim, Y. J. ; Kinoshita, K. ; Ko, B. R. ; Koblitz, S. ; Kodyš, P. ; Korpar, S. ; Kouzes, R. T. ; Križan, P. ; Krokovny, P. ; Kronenbitter, B. ; Kuhr, T. ; Kumita, T. ; Kwon, Y. J. ; Lee, S. H. ; Li, J. ; Li, Y. ; Libby, J. ; Liu, C. ; Liu, Y. ; Liu, Z. Q. ; Liventsev, D. ; Louvot, R. ; Miyabayashi, K. ; Miyata, H. ; Mizuk, R. ; Mohanty, G. B. ; Moll, A. ; Mori, T. ; Muramatsu, N. ; Nagasaka, Y. ; Nakano, E. ; Nakao, M. ; Natkaniec, Z. ; Nishida, S. ; Nitoh, O. ; Ogawa, S. ; Ohshima, T. ; Okuno, S. ; Olsen, S. L. ; Ozaki, H. ; Pakhlova, G. ; Park, C. W. ; Park, H. ; Park, H. K. ; Park, K. S. ; Pedlar, T. K. ; Pestotnik, R. ; Petrič, M. ; Piilonen, L. E. ; Poluektov, A. ; Prim, M. ; Prothmann, K. ; Ritter, M. ; Ryu, S. ; Sahoo, H. ; Sakai, Y. ; Sanuki, T. ; Sato, Y. ; Schneider, O. ; Schwanda, C. ; Schwartz, A. J. ; Senyo, K. ; Seon, O. ; Sevior, M. E. ; Shapkin, M. ; Shen, C. P. ; Shibata, T. A. ; Shiu, J. G. ; Shwartz, B. ; Sibidanov, A. ; Simon, F. ; Singh, J. B. ; Smerkol, P. ; Sohn, Y. S. ; Sokolov, A. ; Solovieva, E. ; Stanič, S. ; Starič, M. ; Sumisawa, K. ; Sumiyoshi, T. ; Trabelsi, K. ; Uchida, M. ; Uehara, S. ; Unno, Y. ; Uno, S. ; Urquijo, P. ; Vanhoefer, P. ; Varner, G. ; Varvell, K. E. ; Vorobyev, V. ; Wang, C. H. ; Wang, M. Z. ; Wang, P. ; Watanabe, M. ; Watanabe, Y. ; Williams, K. M. ; Won, E. ; Yamamoto, H. ; Yamashita, Y. ; Zander, D. ; Zhang, Z. P. ; Zhilich, V. ; Zhulanov, V. ; Zupanc, A. / Measurements of branching fractions and time-dependent CP violating asymmetries in B0→D( ^*) ^±D ^∓ decays. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2012 ; Vol. 85, No. 9.

@article{22f5e611870e4445b35c4466ceeeeebc,

title = "Measurements of branching fractions and time-dependent CP violating asymmetries in B0→D( *) ±D ∓ decays",

abstract = "We report measurements of branching fractions and time-dependent CP asymmetries in B0→D +D - and B0→D *±D ∓ decays using a data sample that contains (772±11)×106B{\=B} pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e +e - collider. We determine the branching fractions to be B(B0→D +D -)=(2.12±0.16±0.18) ×10 -4 and B(B0→D * ±D ∓)=(6.14±0.29±0.50) ×10 -4. We measure CP asymmetry parameters SD +D -=-1.06-0.14+0.21±0.08 and CD +D -=-0. 43±0.16±0.05 in B0→D +D - and AD *D=+0.06±0.05±0.02, SD *D=-0. 78±0.15±0.05, CD *D=-0.01±0.11±0.04, ΔSD *D=-0.13±0.15±0.04 and ΔCD *D=+0.12±0.11±0.03 in B0→D *±D ∓, where the first uncertainty is statistical and the second is systematic. We exclude the conservation of CP symmetry in both decays at equal to or greater than 4σ significance.",

author = "M. R{\"o}hrken and I. Adachi and H. Aihara and Asner, {D. M.} and V. Aulchenko and T. Aushev and Bakich, {A. M.} and M. Barrett and K. Belous and V. Bhardwaj and B. Bhuyan and M. Bischofberger and A. Bondar and G. Bonvicini and A. Bozek and M. Bra{\v c}ko and O. Brovchenko and Browder, {T. E.} and Chang, {M. C.} and A. Chen and P. Chen and Cheon, {B. G.} and K. Chilikin and Cho, {I. S.} and K. Cho and Y. Choi and J. Dalseno and Z. Dole{\v z}al and Z. Dr{\'a}sal and A. Drutskoy and S. Eidelman and Fast, {J. E.} and M. Feindt and V. Gaur and N. Gabyshev and A. Garmash and Goh, {Y. M.} 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 A. Ishikawa and R. Itoh and M. Iwabuchi and Y. Iwasaki and T. Julius and Kang, {J. H.} and T. Kawasaki and C. Kiesling and Kim, {H. J.} and Kim, {H. O.} and Kim, {J. B.} and Kim, {J. H.} and Kim, {K. T.} and Kim, {M. J.} and Kim, {Y. J.} and K. Kinoshita and Ko, {B. R.} and S. Koblitz and P. Kody{\v s} and S. Korpar and Kouzes, {R. T.} and P. Kri{\v z}an and P. Krokovny and B. Kronenbitter and T. Kuhr and T. Kumita and Kwon, {Y. J.} and Lee, {S. H.} and J. Li and Y. Li and J. Libby and C. Liu and Y. Liu and Liu, {Z. Q.} and D. Liventsev and R. Louvot and K. Miyabayashi and H. Miyata and R. Mizuk and Mohanty, {G. B.} and A. Moll and T. Mori and N. Muramatsu and Y. Nagasaka and E. Nakano and M. Nakao and Z. Natkaniec and S. Nishida and O. Nitoh and S. Ogawa and T. Ohshima and S. Okuno and Olsen, {S. L.} and H. Ozaki and G. Pakhlova and Park, {C. W.} and H. Park and Park, {H. K.} and Park, {K. S.} and Pedlar, {T. K.} and R. Pestotnik and M. Petri{\v c} and Piilonen, {L. E.} and A. Poluektov and M. Prim and K. Prothmann and M. Ritter and S. Ryu and H. Sahoo and Y. Sakai and T. Sanuki and Y. Sato and O. Schneider 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 Singh, {J. B.} and P. Smerkol and Sohn, {Y. S.} and A. Sokolov and E. Solovieva and S. Stani{\v c} and M. Stari{\v c} and K. Sumisawa and T. Sumiyoshi and K. Trabelsi and M. Uchida and S. Uehara and Y. Unno and S. Uno and P. Urquijo and P. Vanhoefer and G. Varner and Varvell, {K. E.} and V. Vorobyev and Wang, {C. H.} and Wang, {M. Z.} and P. Wang and M. Watanabe and Y. Watanabe and Williams, {K. M.} and E. Won and H. Yamamoto and Y. Yamashita and D. Zander and Zhang, {Z. P.} and V. Zhilich and V. Zhulanov and A. Zupanc",

year = "2012",

month = may,

day = "18",

doi = "10.1103/PhysRevD.85.091106",

language = "English",

volume = "85",

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

issn = "1550-7998",

number = "9",

}

Röhrken, M, Adachi, I, Aihara, H, Asner, DM, Aulchenko, V, Aushev, T, Bakich, AM, Barrett, M, Belous, K, Bhardwaj, V, Bhuyan, B, Bischofberger, M, Bondar, A, Bonvicini, G, Bozek, A, Bračko, M, Brovchenko, O, Browder, TE, Chang, MC, Chen, A, Chen, P, Cheon, BG, Chilikin, K, Cho, IS, Cho, K, Choi, Y, Dalseno, J, Doležal, Z, Drásal, Z, Drutskoy, A, Eidelman, S, Fast, JE, Feindt, M, Gaur, V, Gabyshev, N, Garmash, A, Goh, YM, Haba, J, Hayashii, H, Horii, Y, Hoshi, Y, Hou, WS, Hsiung, YB, Hyun, HJ, Iijima, T, Ishikawa, A, Itoh, R, Iwabuchi, M, Iwasaki, Y, Julius, T, Kang, JH, Kawasaki, T, Kiesling, C, Kim, HJ, Kim, HO, Kim, JB, Kim, JH, Kim, KT, Kim, MJ, Kim, YJ, Kinoshita, K, Ko, BR, Koblitz, S, Kodyš, P, Korpar, S, Kouzes, RT, Križan, P, Krokovny, P, Kronenbitter, B, Kuhr, T, Kumita, T, Kwon, YJ, Lee, SH, Li, J, Li, Y, Libby, J, Liu, C, Liu, Y, Liu, ZQ, Liventsev, D, Louvot, R, Miyabayashi, K, Miyata, H, Mizuk, R, Mohanty, GB, Moll, A, Mori, T, Muramatsu, N, Nagasaka, Y, Nakano, E, Nakao, M, Natkaniec, Z, Nishida, S, Nitoh, O, Ogawa, S, Ohshima, T, Okuno, S, Olsen, SL, Ozaki, H, Pakhlova, G, Park, CW, Park, H, Park, HK, Park, KS, Pedlar, TK, Pestotnik, R, Petrič, M, Piilonen, LE, Poluektov, A, Prim, M, Prothmann, K, Ritter, M, Ryu, S, Sahoo, H, Sakai, Y, Sanuki, T, Sato, Y, Schneider, O, Schwanda, C, Schwartz, AJ, Senyo, K, Seon, O, Sevior, ME, Shapkin, M, Shen, CP, Shibata, TA, Shiu, JG, Shwartz, B, Sibidanov, A, Simon, F, Singh, JB, Smerkol, P, Sohn, YS, Sokolov, A, Solovieva, E, Stanič, S, Starič, M, Sumisawa, K, Sumiyoshi, T, Trabelsi, K, Uchida, M, Uehara, S, Unno, Y, Uno, S, Urquijo, P, Vanhoefer, P, Varner, G, Varvell, KE, Vorobyev, V, Wang, CH, Wang, MZ, Wang, P, Watanabe, M, Watanabe, Y, Williams, KM, Won, E, Yamamoto, H, Yamashita, Y, Zander, D, Zhang, ZP, Zhilich, V, Zhulanov, V & Zupanc, A 2012, 'Measurements of branching fractions and time-dependent CP violating asymmetries in B0→D( ^*) ^±D ^∓ decays', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 85, no. 9, 091106. https://doi.org/10.1103/PhysRevD.85.091106

Measurements of branching fractions and time-dependent CP violating asymmetries in B0→D( ^*) ^±D ^∓ decays. / Röhrken, M.; Adachi, I.; Aihara, H.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Barrett, M.; Belous, K.; Bhardwaj, V.; Bhuyan, B.; Bischofberger, M.; Bondar, A.; Bonvicini, G.; Bozek, A.; Bračko, M.; Brovchenko, O.; Browder, T. E.; Chang, M. C.; Chen, A.; Chen, P.; Cheon, B. G.; Chilikin, K.; Cho, I. S.; Cho, K.; Choi, Y.; Dalseno, J.; Doležal, Z.; Drásal, Z.; Drutskoy, A.; Eidelman, S.; Fast, J. E.; Feindt, M.; Gaur, V.; Gabyshev, N.; Garmash, A.; Goh, Y. M.; Haba, J.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W. S.; Hsiung, Y. B.; Hyun, H. J.; Iijima, T.; Ishikawa, A.; Itoh, R.; Iwabuchi, M.; Iwasaki, Y.; Julius, T.; Kang, J. H.; Kawasaki, T.; Kiesling, C.; Kim, H. J.; Kim, H. O.; Kim, J. B.; Kim, J. H.; Kim, K. T.; Kim, M. J.; Kim, Y. J.; Kinoshita, K.; Ko, B. R.; Koblitz, S.; Kodyš, P.; Korpar, S.; Kouzes, R. T.; Križan, P.; Krokovny, P.; Kronenbitter, B.; Kuhr, T.; Kumita, T.; Kwon, Y. J.; Lee, S. H.; Li, J.; Li, Y.; Libby, J.; Liu, C.; Liu, Y.; Liu, Z. Q.; Liventsev, D.; Louvot, R.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Moll, A.; Mori, T.; Muramatsu, N.; Nagasaka, Y.; Nakano, E.; Nakao, M.; Natkaniec, Z.; Nishida, S.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Ozaki, H.; Pakhlova, G.; Park, C. W.; Park, H.; Park, H. K.; Park, K. S.; Pedlar, T. K.; Pestotnik, R.; Petrič, M.; Piilonen, L. E.; Poluektov, A.; Prim, M.; Prothmann, K.; Ritter, M.; Ryu, S.; Sahoo, H.; Sakai, Y.; Sanuki, T.; Sato, Y.; Schneider, O.; Schwanda, C.; Schwartz, A. J.; Senyo, K.; Seon, O.; Sevior, M. E.; Shapkin, M.; Shen, C. P.; Shibata, T. A.; Shiu, J. G.; Shwartz, B.; Sibidanov, A.; Simon, F.; Singh, J. B.; Smerkol, P.; Sohn, Y. S.; Sokolov, A.; Solovieva, E.; Stanič, S.; Starič, M.; Sumisawa, K.; Sumiyoshi, T.; Trabelsi, K.; Uchida, M.; Uehara, S.; Unno, Y.; Uno, S.; Urquijo, P.; Vanhoefer, P.; Varner, G.; Varvell, K. E.; Vorobyev, V.; Wang, C. H.; Wang, M. Z.; Wang, P.; Watanabe, M.; Watanabe, Y.; Williams, K. M.; Won, E.; Yamamoto, H.; Yamashita, Y.; Zander, D.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 85, No. 9, 091106, 18.05.2012.

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

TY - JOUR

T1 - Measurements of branching fractions and time-dependent CP violating asymmetries in B0→D( *) ±D ∓ decays

AU - Röhrken, M.

AU - Adachi, I.

AU - Aihara, H.

AU - Asner, D. M.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Barrett, M.

AU - Belous, K.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Bischofberger, M.

AU - Bondar, A.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Brovchenko, O.

AU - Browder, T. E.

AU - Chang, M. C.

AU - Chen, A.

AU - Chen, P.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, I. S.

AU - Cho, K.

AU - Choi, Y.

AU - Dalseno, J.

AU - Doležal, Z.

AU - Drásal, Z.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Fast, J. E.

AU - Feindt, M.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Goh, Y. M.

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 - Ishikawa, A.

AU - Itoh, R.

AU - Iwabuchi, M.

AU - Iwasaki, Y.

AU - Julius, T.

AU - Kang, J. H.

AU - Kawasaki, T.

AU - Kiesling, C.

AU - Kim, H. J.

AU - Kim, H. O.

AU - Kim, J. B.

AU - Kim, J. H.

AU - Kim, K. T.

AU - Kim, M. J.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Ko, B. R.

AU - Koblitz, S.

AU - Kodyš, P.

AU - Korpar, S.

AU - Kouzes, R. T.

AU - Križan, P.

AU - Krokovny, P.

AU - Kronenbitter, B.

AU - Kuhr, T.

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PY - 2012/5/18

Y1 - 2012/5/18

N2 - We report measurements of branching fractions and time-dependent CP asymmetries in B0→D +D - and B0→D *±D ∓ decays using a data sample that contains (772±11)×106BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e +e - collider. We determine the branching fractions to be B(B0→D +D -)=(2.12±0.16±0.18) ×10 -4 and B(B0→D * ±D ∓)=(6.14±0.29±0.50) ×10 -4. We measure CP asymmetry parameters SD +D -=-1.06-0.14+0.21±0.08 and CD +D -=-0. 43±0.16±0.05 in B0→D +D - and AD *D=+0.06±0.05±0.02, SD *D=-0. 78±0.15±0.05, CD *D=-0.01±0.11±0.04, ΔSD *D=-0.13±0.15±0.04 and ΔCD *D=+0.12±0.11±0.03 in B0→D *±D ∓, where the first uncertainty is statistical and the second is systematic. We exclude the conservation of CP symmetry in both decays at equal to or greater than 4σ significance.

AB - We report measurements of branching fractions and time-dependent CP asymmetries in B0→D +D - and B0→D *±D ∓ decays using a data sample that contains (772±11)×106BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e +e - collider. We determine the branching fractions to be B(B0→D +D -)=(2.12±0.16±0.18) ×10 -4 and B(B0→D * ±D ∓)=(6.14±0.29±0.50) ×10 -4. We measure CP asymmetry parameters SD +D -=-1.06-0.14+0.21±0.08 and CD +D -=-0. 43±0.16±0.05 in B0→D +D - and AD *D=+0.06±0.05±0.02, SD *D=-0. 78±0.15±0.05, CD *D=-0.01±0.11±0.04, ΔSD *D=-0.13±0.15±0.04 and ΔCD *D=+0.12±0.11±0.03 in B0→D *±D ∓, where the first uncertainty is statistical and the second is systematic. We exclude the conservation of CP symmetry in both decays at equal to or greater than 4σ significance.

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U2 - 10.1103/PhysRevD.85.091106

DO - 10.1103/PhysRevD.85.091106

M3 - Article

AN - SCOPUS:84861637592

VL - 85

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

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

SN - 1550-7998

IS - 9

M1 - 091106

ER -

Measurements of branching fractions and time-dependent CP violating asymmetries in B0→D( ^*) ^±D ^∓ decays

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