First Measurement of phi_3 with a Model-independent Dalitz Plot Analysis of B->DK, D->KsPiPi Decay
Abstract
We present the first measurement of the angle phi_3 of the Unitarity Triangle using a model-independent Dalitz plot analysis of B->DK, D->KsPiPi decays. The method uses an input measurements of the strong phase of the D->KsPiPi amplitude from the CLEO collaboration. The result is based on the full data set of 772x10^6 BBbar pairs collected by the Belle experiment at the Upsilon(4S) resonance. We obtain phi_3 = (77.3^{+15.1}_{-14.9} +- 4.1 +- 4.3)^{\circ} and the suppressed amplitude ratio r_B = 0.145 +- 0.030 +- 0.010 +- 0.011. Here the first error is statistical, the second is the experimental systematic uncertainty, and the third is the error due to the precision of the strong-phase parameters obtained by CLEO.
Keywords
Cite
@article{arxiv.1204.6561,
title = {First Measurement of phi_3 with a Model-independent Dalitz Plot Analysis of B->DK, D->KsPiPi Decay},
author = {Belle collaboration and H. Aihara and K. Arinstein and D. M. Asner and V. Aulchenko and T. Aushev and A. M. Bakich and K. Belous and B. Bhuyan and M. Bischofberger and A. Bondar and G. Bonvicini and A. Bozek and M. Bračko and T. E. Browder and M. -C. Chang and P. Chang and B. G. Cheon and K. Chilikin and R. Chistov and K. Cho and Y. Choi and J. Dalseno and Z. Doležal and A. Drutskoy and S. Eidelman and D. Epifanov and J. E. Fast and M. Feindt and V. Gaur and N. Gabyshev and A. Garmash and Y. M. Goh and B. Golob and J. Haba and H. Hayashii and Y. Horii and Y. Hoshi and W. -S. Hou and Y. B. Hsiung and H. J. Hyun and T. Iijima and A. Ishikawa and R. Itoh and M. Iwabuchi and T. Julius and J. H. Kang and T. Kawasaki and C. Kiesling and H. J. Kim and H. O. Kim and J. B. Kim and J. H. Kim and K. T. Kim and M. J. Kim and Y. J. Kim and K. Kinoshita and B. R. Ko and S. Koblitz and P. Kodyš and S. Korpar and P. Križan and P. Krokovny and B. Kronenbitter and T. Kuhr and T. Kumita and A. Kuzmin and Y. -J. Kwon and S. -H. Lee and J. Li and Y. Li and J. Libby and C. Liu and Y. Liu and Z. Q. Liu and D. Liventsev and R. Louvot and D. Matvienko and K. Miyabayashi and H. Miyata and R. Mizuk and G. B. Mohanty 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 S. L. Olsen and G. Pakhlova and C. W. Park and H. Park and H. K. Park and K. S. Park and T. K. Pedlar and R. Pestotnik and M. Petrič and L. E. Piilonen and A. Poluektov and K. Prothmann and M. Ritter and M. Röhrken and M. Rozanska and S. Ryu and H. Sahoo and Y. Sakai and T. Sanuki and Y. Sato and O. Schneider and C. Schwanda and A. J. Schwartz and K. Senyo and O. Seon and M. E. Sevior and M. Shapkin and T. -A. Shibata and J. -G. Shiu and B. Shwartz and A. Sibidanov and F. Simon and J. B. Singh and P. Smerkol and Y. -S. Sohn and A. Sokolov and E. Solovieva and S. Stanič and M. Starič and K. Sumisawa and T. Sumiyoshi and G. Tatishvili 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 K. E. Varvell and A. Vinokurova and V. Vorobyev and C. H. Wang and M. -Z. Wang and P. Wang and Y. Watanabe and K. M. Williams and E. Won and B. D. Yabsley and H. Yamamoto and J. Yamaoka and Y. Yamashita and C. Z. Yuan and Z. P. Zhang and V. Zhilich and V. Zhulanov and A. Zupanc},
journal= {arXiv preprint arXiv:1204.6561},
year = {2012}
}
Comments
Replaced by published version. Fig. 8a added