Physics Letters B (2016-02-01)

Measurement of D0–D‾0 mixing and search for CP violation in D0→K+K−,π+π− decays with the full Belle data set

  • M. Starič,
  • A. Abdesselam,
  • I. Adachi,
  • H. Aihara,
  • K. Arinstein,
  • D.M. Asner,
  • T. Aushev,
  • R. Ayad,
  • T. Aziz,
  • V. Babu,
  • I. Badhrees,
  • S. Bahinipati,
  • A.M. Bakich,
  • V. Bansal,
  • J. Biswal,
  • A. Bondar,
  • G. Bonvicini,
  • A. Bozek,
  • M. Bračko,
  • T.E. Browder,
  • D. Červenkov,
  • V. Chekelian,
  • A. Chen,
  • B.G. Cheon,
  • K. Chilikin,
  • R. Chistov,
  • K. Cho,
  • V. Chobanova,
  • Y. Choi,
  • D. Cinabro,
  • J. Dalseno,
  • M. Danilov,
  • Z. Doležal,
  • D. Dutta,
  • S. Eidelman,
  • D. Epifanov,
  • H. Farhat,
  • J.E. Fast,
  • T. Ferber,
  • B.G. Fulsom,
  • V. Gaur,
  • N. Gabyshev,
  • S. Ganguly,
  • A. Garmash,
  • R. Gillard,
  • R. Glattauer,
  • Y.M. Goh,
  • P. Goldenzweig,
  • B. Golob,
  • J. Grygier,
  • J. Haba,
  • T. Hara,
  • K. Hayasaka,
  • H. Hayashii,
  • X.H. He,
  • W.-S. Hou,
  • C.-L. Hsu,
  • T. Iijima,
  • K. Inami,
  • G. Inguglia,
  • A. Ishikawa,
  • R. Itoh,
  • I. Jaegle,
  • D. Joffe,
  • T. Julius,
  • K.H. Kang,
  • T. Kawasaki,
  • T. Keck,
  • C. Kiesling,
  • D.Y. Kim,
  • J.B. Kim,
  • J.H. Kim,
  • M.J. Kim,
  • S.H. Kim,
  • Y.J. Kim,
  • K. Kinoshita,
  • B.R. Ko,
  • P. Kodyš,
  • S. Korpar,
  • P. Križan,
  • P. Krokovny,
  • T. Kumita,
  • A. Kuzmin,
  • Y.-J. Kwon,
  • J.S. Lange,
  • I.S. Lee,
  • P. Lewis,
  • Y. Li,
  • L. Li Gioi,
  • J. Libby,
  • D. Liventsev,
  • P. Lukin,
  • M. Masuda,
  • D. Matvienko,
  • K. Miyabayashi,
  • H. Miyata,
  • R. Mizuk,
  • G.B. Mohanty,
  • A. Moll,
  • H.K. Moon,
  • R. Mussa,
  • M. Nakao,
  • T. Nanut,
  • Z. Natkaniec,
  • N.K. Nisar,
  • S. Nishida,
  • S. Ogawa,
  • S. Okuno,
  • P. Pakhlov,
  • G. Pakhlova,
  • B. Pal,
  • C.W. Park,
  • H. Park,
  • T.K. Pedlar,
  • L. Pesántez,
  • R. Pestotnik,
  • M. Petrič,
  • L.E. Piilonen,
  • E. Ribežl,
  • M. Ritter,
  • A. Rostomyan,
  • Y. Sakai,
  • S. Sandilya,
  • T. Sanuki,
  • V. Savinov,
  • O. Schneider,
  • G. Schnell,
  • C. Schwanda,
  • A.J. Schwartz,
  • K. Senyo,
  • V. Shebalin,
  • C.P. Shen,
  • T.-A. Shibata,
  • J.-G. Shiu,
  • B. Shwartz,
  • F. Simon,
  • Y.-S. Sohn,
  • A. Sokolov,
  • E. Solovieva,
  • S. Stanič,
  • M. Steder,
  • M. Sumihama,
  • U. Tamponi,
  • Y. Teramoto,
  • K. Trabelsi,
  • M. Uchida,
  • S. Uehara,
  • T. Uglov,
  • Y. Unno,
  • S. Uno,
  • P. Urquijo,
  • Y. Usov,
  • C. Van Hulse,
  • P. Vanhoefer,
  • G. Varner,
  • A. Vinokurova,
  • V. Vorobyev,
  • M.N. Wagner,
  • C.H. Wang,
  • M.-Z. Wang,
  • P. Wang,
  • X.L. Wang,
  • M. Watanabe,
  • Y. Watanabe,
  • K.M. Williams,
  • E. Won,
  • S. Yashchenko,
  • Y. Yook,
  • C.Z. Yuan,
  • Z.P. Zhang,
  • V. Zhilich,
  • V. Zhulanov,
  • M. Ziegler,
  • A. Zupanc

DOI
https://doi.org/10.1016/j.physletb.2015.12.025
Journal volume & issue
Vol. 753, no. C
pp. 412 – 418

Abstract

Read online

We report an improved measurement of D0–D‾0 mixing and a search for CP violation in D0 decays to CP-even final states K+K− and π+π−. The measurement is based on the final Belle data sample of 976 fb−1. The results are yCP=(1.11±0.22±0.09)% and AΓ=(−0.03±0.20±0.07)%, where the first uncertainty is statistical and the second is systematic.

Keywords