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29 March 2024
 
  » arxiv » 1203.0930

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Search for Time-Dependent CPT Violation in Hadronic and Semileptonic B Decays
T. Higuchi ; K. Sumisawa ; I. Adachi ; H. Aihara ; D. M. Asner ; V. Aulchenko ; T. Aushev ; A. M. Bakich ; A. Bay ; K. Belous ; V. Bhardwaj ; B. Bhuyan ; M. Bischofberger ; A. Bondar ; A. Bozek ; M. Bračko ; O. Brovchenko ; T. E. Browder ; M.-C. Chang ; P. Chang ; A. Chen ; P. Chen ; B. G. Cheon ; K. Chilikin ; R. Chistov ; I.-S. Cho ; K. Cho ; S.-K. Choi ; Y. Choi ; J. Dalseno ; M. Danilov ; Z. Doležal ; Z. Drásal ; S. Eidelman ; D. Epifanov ; J. E. Fast ; V. Gaur ; N. Gabyshev ; A. Garmash ; Y. M. Goh ; B. Golob ; J. Haba ; K. Hara ; K. Hayasaka ; H. Hayashii ; Y. Horii ; Y. Hoshi ; W.-S. Hou ; Y. B. Hsiung ; H. J. Hyun ; T. Iijima ; K. Inami ; A. Ishikawa ; R. Itoh ; Y. Iwasaki ; T. Iwashita ; T. Julius ; J. H. Kang ; P. Kapusta ; T. Kawasaki ; C. Kiesling ; H. J. Kim ; H. O. Kim ; J. B. Kim ; K. T. Kim ; M. J. Kim ; Y. J. Kim ; B. R. Ko ; S. Koblitz ; P. Kodyš ; S. Korpar ; P. Križan ; P. Krokovny ; T. Kuhr ; T. Kumita ; A. Kuzmin ; Y.-J. Kwon ; J. S. Lange ; S.-H. Lee ; J. Li ; Y. Li ; J. Libby ; C. Liu ; Z. Q. Liu ; D. Liventsev ; R. Louvot ; D. Matvienko ; S. McOnie ; K. Miyabayashi ; H. Miyata ; Y. Miyazaki ; G. B. Mohanty ; A. Moll ; T. Mori ; N. Muramatsu ; Y. Nagasaka ; Y. Nakahama ; M. Nakao ; H. Nakazawa ; Z. Natkaniec ; C. Ng ; S. Nishida ; K. Nishimura ; O. Nitoh ; T. Nozaki ; S. Ogawa ; T. Ohshima ; S. Okuno ; S. L. Olsen ; Y. Onuki ; P. Pakhlov ; G. Pakhlova ; C. W. Park ; H. K. Park ; K. S. Park ; R. Pestotnik ; M. Petrič ; L. E. Piilonen ; M. Prim ; M. Ritter ; M. Röhrken ; S. Ryu ; H. Sahoo ; Y. Sakai ; T. Sanuki ; Y. Sato ; O. Schneider ; C. Schwanda ; A. J. Schwartz ; R. Seidl ; K. Senyo ; M. E. Sevior ; M. Shapkin ; V. Shebalin ; C. P. Shen ; T.-A. Shibata ; J.-G. Shiu ; B. Shwartz ; A. Sibidanov ; R. Sinha ; P. Smerkol ; Y.-S. Sohn ; A. Sokolov ; E. Solovieva ; S. Stanič ; M. Starič ; M. Sumihama ; T. Sumiyoshi ; S. Tanaka ; G. Tatishvili ; Y. Teramoto ; K. Trabelsi ; T. Tsuboyama ; M. Uchida ; S. Uehara ; T. Uglov ; Y. Unno ; S. Uno ; P. Urquijo ; Y. Usov ; G. Varner ; K. E. Varvell ; A. Vinokurova ; V. Vorobyev ; C. H. Wang ; P. Wang ; X. L. Wang ; M. Watanabe ; Y. Watanabe ; K. M. Williams ; E. Won ; B. D. Yabsley ; H. Yamamoto ; Y. Yamashita ; C. Z. Yuan ; Y. Yusa ; Z. P. Zhang ; V. Zhilich ; V. Zhulanov ;
Date 5 Mar 2012
AbstractWe report a new sensitive search for CPT violation, which includes improved measurements of the CPT-violating parameter z and the total decay-width difference normalized to the averaged width DeltaGamma_d/Gamma_d of the two Bd mass eigenstates. The results are based on a data sample of 535 x 10^6 BBbar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^+e^- collider. We obtain Re(z) = [+1.9 +/- 3.7 (stat) +/- 3.3 (syst)] x 10^{-2}, Im(z) = [-5.7 +/- 3.3 (stat) +/- 3.3 (syst)] x 10^{-3}, and DeltaGamma_d/Gamma_d = [-1.7 +/- 1.8 (stat) +/- 1.1 (syst)] x 10^{-2}, all of which are consistent with zero. This is the most precise single measurement of these parameters in the neutral B-meson system to date.
Source arXiv, 1203.0930
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