First observation of CP violation and improved measurement of the branching fraction and polarization of B0→D*+ D*- decays

B. Kronenbitter; I. Adachi; H. Aihara; K. Arinstein; D. M. Asner; T. Aushev; T. Aziz; A. M. Bakich; M. Barrett; K. Belous; V. Bhardwaj; B. Bhuyan; A. Bondar; A. Bozek; M. Bračko; O. Brovchenko; T. E. Browder; V. Chekelian; A. Chen; P. Chen; B. G. Cheon; R. Chistov; I. S. Cho; K. Cho; Y. Choi; J. Dalseno; Z. Doležal; Z. Drásal; A. Drutskoy; S. Eidelman; S. Esen; J. E. Fast; M. Feindt; V. Gaur; N. Gabyshev; Y. M. Goh; J. Haba; H. Hayashii; Y. Horii; Y. Hoshi; W. S. Hou; Y. B. Hsiung; T. Iijima; K. Inami; A. Ishikawa; R. Itoh; M. Iwabuchi; Y. Iwasaki; T. Julius; J. H. Kang; P. Kapusta; 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; T. Kuhr; R. Kumar; T. Kumita; Y. J. Kwon; S. H. Lee; J. Li; Y. Li; J. Libby; Y. Liu; Z. Q. Liu; D. Liventsev; R. Louvot; S. McOnie; K. Miyabayashi; H. Miyata; R. Mizuk; G. B. Mohanty; D. Mohapatra; A. Moll; E. Nakano; M. Nakao; S. Neubauer; C. Ng; S. Nishida; K. Nishimura; O. Nitoh; T. Ohshima; S. Okuno; S. L. Olsen; Y. Onuki; H. Ozaki; P. Pakhlov; G. Pakhlova; C. W. Park; H. Park; H. K. Park; R. Pestotnik; M. Petrič; L. E. Piilonen; M. Prim; M. Ritter; M. Röhrken; S. Ryu; H. Sahoo; Y. Sakai; S. Sandilya; L. Santelj; T. Sanuki; O. Schneider; C. Schwanda; A. J. Schwartz; K. Senyo; M. E. Sevior; M. Shapkin; C. P. Shen; T. A. Shibata; J. G. Shiu; A. Sibidanov; F. Simon; P. Smerkol; Y. S. Sohn; A. Sokolov; E. Solovieva; S. Stanič; M. Starič; M. Sumihama; K. Sumisawa; T. Sumiyoshi; G. Tatishvili; Y. Teramoto; K. Trabelsi; T. Tsuboyama; M. Uchida; S. Uehara; T. Uglov; Y. Unno; S. Uno; Y. Usov; P. Vanhoefer; G. Varner; K. E. Varvell; V. Vorobyev; C. H. Wang; P. Wang; Y. Watanabe; K. M. Williams; E. Won; B. D. Yabsley; J. Yamaoka; Y. Yamashita; D. Zander; V. Zhilich; V. Zhulanov; A. Zupanc

doi:10.1103/PhysRevD.86.071103

First observation of CP violation and improved measurement of the branching fraction and polarization of B0→D+ ^D- decays

B. Kronenbitter^*
, I. Adachi
, H. Aihara
, K. Arinstein
, D. M. Asner
, T. Aushev
, T. Aziz
, A. M. Bakich
, M. Barrett
, K. Belous
, V. Bhardwaj
, B. Bhuyan
, A. Bondar
, A. Bozek
, M. Bračko
, O. Brovchenko
, T. E. Browder
, V. Chekelian
, A. Chen
, P. Chen

B. G. Cheon, R. Chistov, I. S. Cho, K. Cho, Y. Choi, J. Dalseno, Z. Doležal, Z. Drásal, A. Drutskoy, S. Eidelman, S. Esen, J. E. Fast, M. Feindt, V. Gaur, N. Gabyshev, Y. M. Goh, J. Haba, H. Hayashii, Y. Horii, Y. Hoshi, W. S. Hou, Y. B. Hsiung, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, M. Iwabuchi, Y. Iwasaki, T. Julius, J. H. Kang, P. Kapusta, 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, T. Kuhr, R. Kumar, T. Kumita, Y. J. Kwon, S. H. Lee, J. Li, Y. Li, J. Libby, Y. Liu, Z. Q. Liu, D. Liventsev, R. Louvot, S. McOnie, K. Miyabayashi, H. Miyata, R. Mizuk, G. B. Mohanty, D. Mohapatra, A. Moll, E. Nakano, M. Nakao, S. Neubauer, C. Ng, S. Nishida, K. Nishimura, O. Nitoh, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, H. K. Park, R. Pestotnik, M. Petrič, L. E. Piilonen, M. Prim, M. Ritter, M. Röhrken, S. Ryu, H. Sahoo, Y. Sakai, S. Sandilya, L. Santelj, T. Sanuki, O. Schneider, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, T. A. Shibata, J. G. Shiu, A. Sibidanov, F. Simon, P. Smerkol, Y. S. Sohn, A. Sokolov, E. Solovieva, S. Stanič, M. Starič, M. Sumihama, K. Sumisawa, T. Sumiyoshi, G. Tatishvili, Y. Teramoto, K. Trabelsi, T. Tsuboyama, M. Uchida, S. Uehara, T. Uglov, Y. Unno, S. Uno, Y. Usov, P. Vanhoefer, G. Varner, K. E. Varvell, V. Vorobyev, C. H. Wang, P. Wang, Y. Watanabe, K. M. Williams, E. Won, B. D. Yabsley, J. Yamaoka, Y. Yamashita, D. Zander, V. Zhilich, V. Zhulanov, A. Zupanc

^*Corresponding author for this work

Department of Physics

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

11 Citations (Scopus)

Abstract

We report the measurement of the branching fraction, the polarization, and the parameters of the time-dependent CP violation in B0→D* ⁺D* ^- decays using a data sample of 772×106BB̄ pairs, collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e ⁺e ^- collider. We obtain a branching fraction of B=(7.82±0.38±0.63) ×10 ^-4, a CP-odd fraction of R _⊥=0.138±0. 024±0.006 and, additionally, a fraction of the longitudinal component in the transversity base of R ₀=0.624±0.029±0.011. The measured values of the parameters of the CP violation are SD* ⁺D* ^-=-0.79±0.13±0.03 and AD* ⁺D* ^-=0.15±0.08±0.04.

Original language	English
Article number	071103
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	86
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevD.86.071103
Publication status	Published - 2012 Oct 18

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.86.071103

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Kronenbitter, B., Adachi, I., Aihara, H., Arinstein, K., Asner, D. M., Aushev, T., Aziz, T., Bakich, A. M., Barrett, M., Belous, K., Bhardwaj, V., Bhuyan, B., Bondar, A., Bozek, A., Bračko, M., Brovchenko, O., Browder, T. E., Chekelian, V., Chen, A., ... Zupanc, A. (2012). First observation of CP violation and improved measurement of the branching fraction and polarization of B0→D*+ ^D*- decays. Physical Review D - Particles, Fields, Gravitation and Cosmology, 86(7), Article 071103. https://doi.org/10.1103/PhysRevD.86.071103

Kronenbitter, B, Adachi, I, Aihara, H, Arinstein, K, Asner, DM, Aushev, T, Aziz, T, Bakich, AM, Barrett, M, Belous, K, Bhardwaj, V, Bhuyan, B, Bondar, A, Bozek, A, Bračko, M, Brovchenko, O, Browder, TE, Chekelian, V, Chen, A, Chen, P, Cheon, BG, Chistov, R, Cho, IS, Cho, K, Choi, Y, Dalseno, J, Doležal, Z, Drásal, Z, Drutskoy, A, Eidelman, S, Esen, S, Fast, JE, Feindt, M, Gaur, V, Gabyshev, N, Goh, YM, Haba, J, Hayashii, H, Horii, Y, Hoshi, Y, Hou, WS, Hsiung, YB, Iijima, T, Inami, K, Ishikawa, A, Itoh, R, Iwabuchi, M, Iwasaki, Y, Julius, T, Kang, JH, Kapusta, P, 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, Kuhr, T, Kumar, R, Kumita, T, Kwon, YJ, Lee, SH, Li, J, Li, Y, Libby, J, Liu, Y, Liu, ZQ, Liventsev, D, Louvot, R, McOnie, S, Miyabayashi, K, Miyata, H, Mizuk, R, Mohanty, GB, Mohapatra, D, Moll, A, Nakano, E, Nakao, M, Neubauer, S, Ng, C, Nishida, S, Nishimura, K, Nitoh, O, Ohshima, T, Okuno, S, Olsen, SL, Onuki, Y, Ozaki, H, Pakhlov, P, Pakhlova, G, Park, CW, Park, H, Park, HK, Pestotnik, R, Petrič, M, Piilonen, LE, Prim, M, Ritter, M, Röhrken, M, Ryu, S, Sahoo, H, Sakai, Y, Sandilya, S, Santelj, L, Sanuki, T, Schneider, O, Schwanda, C, Schwartz, AJ, Senyo, K, Sevior, ME, Shapkin, M, Shen, CP, Shibata, TA, Shiu, JG, Sibidanov, A, Simon, F, Smerkol, P, Sohn, YS, Sokolov, A, Solovieva, E, Stanič, S, Starič, M, Sumihama, M, Sumisawa, K, Sumiyoshi, T, Tatishvili, G, Teramoto, Y, Trabelsi, K, Tsuboyama, T, Uchida, M, Uehara, S, Uglov, T, Unno, Y, Uno, S, Usov, Y, Vanhoefer, P, Varner, G, Varvell, KE, Vorobyev, V, Wang, CH, Wang, P, Watanabe, Y, Williams, KM, Won, E, Yabsley, BD, Yamaoka, J, Yamashita, Y, Zander, D, Zhilich, V, Zhulanov, V & Zupanc, A 2012, 'First observation of CP violation and improved measurement of the branching fraction and polarization of B0→D*+ ^D*- decays', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 86, no. 7, 071103. https://doi.org/10.1103/PhysRevD.86.071103

@article{17f04c22d7384324ad6c30b01d0efc19,

title = "First observation of CP violation and improved measurement of the branching fraction and polarization of B0→D*+ D*- decays",

abstract = "We report the measurement of the branching fraction, the polarization, and the parameters of the time-dependent CP violation in B0→D* +D* - decays using a data sample of 772×106B{\=B} pairs, collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e +e - collider. We obtain a branching fraction of B=(7.82±0.38±0.63) ×10 -4, a CP-odd fraction of R ⊥=0.138±0. 024±0.006 and, additionally, a fraction of the longitudinal component in the transversity base of R 0=0.624±0.029±0.011. The measured values of the parameters of the CP violation are SD* +D* -=-0.79±0.13±0.03 and AD* +D* -=0.15±0.08±0.04.",

author = "B. Kronenbitter and I. Adachi and H. Aihara and K. Arinstein and Asner, \{D. M.\} and T. Aushev and T. Aziz and Bakich, \{A. M.\} and M. Barrett and K. Belous and V. Bhardwaj and B. Bhuyan and A. Bondar and A. Bozek and M. Bra{\v c}ko and O. Brovchenko and Browder, \{T. E.\} and V. Chekelian and A. Chen and P. Chen and Cheon, \{B. G.\} and R. Chistov 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 S. Esen and Fast, \{J. E.\} and M. Feindt and V. Gaur and N. Gabyshev 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 T. Iijima and K. Inami and A. Ishikawa and R. Itoh and M. Iwabuchi and Y. Iwasaki and T. Julius and Kang, \{J. H.\} and P. Kapusta 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 T. Kuhr and R. Kumar and T. Kumita and Kwon, \{Y. J.\} and Lee, \{S. H.\} and J. Li and Y. Li and J. Libby and Y. Liu and Liu, \{Z. Q.\} and D. Liventsev and R. Louvot and S. McOnie and K. Miyabayashi and H. Miyata and R. Mizuk and Mohanty, \{G. B.\} and D. Mohapatra and A. Moll and E. Nakano and M. Nakao and S. Neubauer and C. Ng and S. Nishida and K. Nishimura and O. Nitoh and T. Ohshima and S. Okuno and Olsen, \{S. L.\} and Y. Onuki and H. Ozaki and P. Pakhlov and G. Pakhlova and Park, \{C. W.\} and H. Park and Park, \{H. K.\} and R. Pestotnik and M. Petri{\v c} and Piilonen, \{L. E.\} and M. Prim and M. Ritter and M. R{\"o}hrken and S. Ryu and H. Sahoo and Y. Sakai and S. Sandilya and L. Santelj and T. Sanuki and O. Schneider and C. Schwanda and Schwartz, \{A. J.\} and K. Senyo and Sevior, \{M. E.\} and M. Shapkin and Shen, \{C. P.\} and Shibata, \{T. A.\} and Shiu, \{J. G.\} and A. Sibidanov and F. Simon and P. Smerkol and Sohn, \{Y. S.\} and A. Sokolov and E. Solovieva and S. Stani{\v c} and M. Stari{\v c} and M. Sumihama and K. Sumisawa and T. Sumiyoshi and G. Tatishvili and Y. Teramoto and K. Trabelsi and T. Tsuboyama and M. Uchida and S. Uehara and T. Uglov and Y. Unno and S. Uno and Y. Usov and P. Vanhoefer and G. Varner and Varvell, \{K. E.\} and V. Vorobyev and Wang, \{C. H.\} and P. Wang and Y. Watanabe and Williams, \{K. M.\} and E. Won and Yabsley, \{B. D.\} and J. Yamaoka and Y. Yamashita and D. Zander and V. Zhilich and V. Zhulanov and A. Zupanc",

year = "2012",

month = oct,

day = "18",

doi = "10.1103/PhysRevD.86.071103",

language = "English",

volume = "86",

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

issn = "1550-7998",

publisher = "American Institute of Physics",

number = "7",

}

TY - JOUR

T1 - First observation of CP violation and improved measurement of the branching fraction and polarization of B0→D*+ D*- decays

AU - Kronenbitter, B.

AU - Adachi, I.

AU - Aihara, H.

AU - Arinstein, K.

AU - Asner, D. M.

AU - Aushev, T.

AU - Aziz, T.

AU - Bakich, A. M.

AU - Barrett, M.

AU - Belous, K.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Brovchenko, O.

AU - Browder, T. E.

AU - Chekelian, V.

AU - Chen, A.

AU - Chen, P.

AU - Cheon, B. G.

AU - Chistov, R.

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 - Esen, S.

AU - Fast, J. E.

AU - Feindt, M.

AU - Gaur, V.

AU - Gabyshev, N.

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 - Iijima, T.

AU - Inami, K.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwabuchi, M.

AU - Iwasaki, Y.

AU - Julius, T.

AU - Kang, J. H.

AU - Kapusta, P.

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 - Kuhr, T.

AU - Kumar, R.

AU - Kumita, T.

AU - Kwon, Y. J.

AU - Lee, S. H.

AU - Li, J.

AU - Li, Y.

AU - Libby, J.

AU - Liu, Y.

AU - Liu, Z. Q.

AU - Liventsev, D.

AU - Louvot, R.

AU - McOnie, S.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Mizuk, R.

AU - Mohanty, G. B.

AU - Mohapatra, D.

AU - Moll, A.

AU - Nakano, E.

AU - Nakao, M.

AU - Neubauer, S.

AU - Ng, C.

AU - Nishida, S.

AU - Nishimura, K.

AU - Nitoh, O.

AU - Ohshima, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Onuki, Y.

AU - Ozaki, H.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Park, C. W.

AU - Park, H.

AU - Park, H. K.

AU - Pestotnik, R.

AU - Petrič, M.

AU - Piilonen, L. E.

AU - Prim, M.

AU - Ritter, M.

AU - Röhrken, M.

AU - Ryu, S.

AU - Sahoo, H.

AU - Sakai, Y.

AU - Sandilya, S.

AU - Santelj, L.

AU - Sanuki, T.

AU - Schneider, O.

AU - Schwanda, C.

AU - Schwartz, A. J.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shen, C. P.

AU - Shibata, T. A.

AU - Shiu, J. G.

AU - Sibidanov, A.

AU - Simon, F.

AU - Smerkol, P.

AU - Sohn, Y. S.

AU - Sokolov, A.

AU - Solovieva, E.

AU - Stanič, S.

AU - Starič, M.

AU - Sumihama, M.

AU - Sumisawa, K.

AU - Sumiyoshi, T.

AU - Tatishvili, G.

AU - Teramoto, Y.

AU - Trabelsi, K.

AU - Tsuboyama, T.

AU - Uchida, M.

AU - Uehara, S.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Usov, Y.

AU - Vanhoefer, P.

AU - Varner, G.

AU - Varvell, K. E.

AU - Vorobyev, V.

AU - Wang, C. H.

AU - Wang, P.

AU - Watanabe, Y.

AU - Williams, K. M.

AU - Won, E.

AU - Yabsley, B. D.

AU - Yamaoka, J.

AU - Yamashita, Y.

AU - Zander, D.

AU - Zhilich, V.

AU - Zhulanov, V.

AU - Zupanc, A.

PY - 2012/10/18

Y1 - 2012/10/18

N2 - We report the measurement of the branching fraction, the polarization, and the parameters of the time-dependent CP violation in B0→D* +D* - decays using a data sample of 772×106BB̄ pairs, collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e +e - collider. We obtain a branching fraction of B=(7.82±0.38±0.63) ×10 -4, a CP-odd fraction of R ⊥=0.138±0. 024±0.006 and, additionally, a fraction of the longitudinal component in the transversity base of R 0=0.624±0.029±0.011. The measured values of the parameters of the CP violation are SD* +D* -=-0.79±0.13±0.03 and AD* +D* -=0.15±0.08±0.04.

AB - We report the measurement of the branching fraction, the polarization, and the parameters of the time-dependent CP violation in B0→D* +D* - decays using a data sample of 772×106BB̄ pairs, collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e +e - collider. We obtain a branching fraction of B=(7.82±0.38±0.63) ×10 -4, a CP-odd fraction of R ⊥=0.138±0. 024±0.006 and, additionally, a fraction of the longitudinal component in the transversity base of R 0=0.624±0.029±0.011. The measured values of the parameters of the CP violation are SD* +D* -=-0.79±0.13±0.03 and AD* +D* -=0.15±0.08±0.04.

UR - https://www.scopus.com/pages/publications/84867824105

U2 - 10.1103/PhysRevD.86.071103

DO - 10.1103/PhysRevD.86.071103

M3 - Article

AN - SCOPUS:84867824105

SN - 1550-7998

VL - 86

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

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

IS - 7

M1 - 071103

ER -

First observation of CP violation and improved measurement of the branching fraction and polarization of B0→D+ ^D- decays

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