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Related papers: Mixing in the D0 - D0bar system at BaBar

200 papers

The D0 meson can decay to the wrong sign K+pi- state either through a doubly Cabibbo suppressed decay or via mixing to the D0bar state followed by the Cabibbo favoured decay D0bar -> K+ pi-. We measure the rate of wrong sign decays relative…

High Energy Physics - Experiment · Physics 2007-05-23 Ulrik Egede

We analyze 230.4 fb-1 of data collected with the BaBar detector at the PEP-II e+ e- collider at SLAC to search for evidence of D0--anti-D0 mixing using regions of phase space in the decay D0 --> K+ pi- pi0. We measure the time-integrated…

High Energy Physics - Experiment · Physics 2010-03-19 The BABAR Collaboration , B. Aubert

We report a measurement of D0-D0bar mixing in D0->Ks pi+ pi- decays using a time-dependent Dalitz plot analysis. We first assume CP conservation and subsequently allow for CP violation. The results are based on 540 fb$^{-1}$ of data…

High Energy Physics - Experiment · Physics 2019-08-12 L. M. Zhang

We report the results on $D^0$-$\bar{D}^0$ mixing in the decays of $D^0\to K^+\pi^-$ and $D^0\to K_S^0\pi^+\pi^-$, and CP violation in $D^0\to\pi^0\pi^0$ using a data sample with an integrated luminosity of about 1~ab$^{-1}$ recorded with…

High Energy Physics - Experiment · Physics 2014-11-11 N. K. Nisar

We present preliminary results of several analyses searching for the effects of CP violation and mixing in the decay of $D^0$ mesons. We find no evidence of CP asymmetry in five different two-body decay modes of the $D^0$ to pairs of light…

High Energy Physics - Experiment · Physics 2012-08-27 CLEO Collaboration

We report on a search for D0-D0B mixing made by studying the `wrong-sign' process D0->K^+pi^-. The data come from an integrated luminosity of 9.0 1/fb of e^+e^- collisions at s^(1/2) of approximately 10 GeV recorded with the CLEO II.V…

High Energy Physics - Experiment · Physics 2010-04-08 R. Godang , CLEO Collaboration

We review results from FNAL E791 concerning D0-D0bar mixing and CP violation in D meson decays. We have searched for mixing in semileptonic D0 -> K+\ell-\bar{\nu} decays and in hadronic D0 -> K+\pi- and D0 -> K+\pi-\pi+\pi- decays. We have…

High Energy Physics - Experiment · Physics 2009-10-31 A. J. Schwartz

The resonant substructure in D0 --> K0S pi+ pi- decays is described by a combination of ten quasi two-body intermediate states which include both CP-even and CP-odd eigenstates and one doubly-Cabibbo suppressed channel. We present a…

High Energy Physics - Experiment · Physics 2010-04-08 D. M. Asner , CLEO Collaboration

We report on a direct measurement of the mixing parameter y=(3.42+-1.39+-0.74)% in the D0-D0bar system by measuring the lifetime difference between the CP mixed final state K^+pi^- and the CP even state K^+K^-. We also present a study of…

High Energy Physics - Experiment · Physics 2007-05-23 FOCUS Collaboration , Jonathan M. Link

Using a sample of four million hadronic Z events collected in ALEPH from 1991 to 1995, the decays D*+ -> D0pi^+_s, with D0 decaying to K-pi+ or to K+pi-, are studied. The relative branching ratio B(D0 -> K+pi-)/B(D0 -> K-pi+) is measured to…

High Energy Physics - Experiment · Physics 2012-08-27 ALEPH collaboration

With 12.3 fb-1 collected by the BaBar experiment in 2001, the mixing parameter y = Delta(Gamma)/(2 Gamma) is determined from the ratio of the D0 lifetimes measured in the D0 --> K- pi+ and in the D0 --> K- K+ decay modes. The preliminary…

High Energy Physics - Experiment · Physics 2009-11-07 Monika Grothe

We observe $D^0-\bar{D}^0$ mixing in the decay $D^0\rightarrow K^+\pi^-$ using a data sample of integrated luminosity 976 fb$^{-1}$ collected with the Belle detector at the KEKB $e^+e^-$ asymmetric-energy collider. We measure the mixing…

High Energy Physics - Experiment · Physics 2014-03-21 B. R. Ko , E. Won , I. Adachi , H. Aihara , K. Arinstein , D. M. Asner , V. Aulchenko , T. Aushev , A. Bala , V. Bhardwaj , B. Bhuyan , A. Bobrov , A. Bondar , A. Bozek , M. Bračko , T. E. Browder , D. Červenkov , A. Chen , B. G. Cheon , K. Chilikin , R. Chistov , I. -S. Cho , K. Cho , V. Chobanova , S. -K. Choi , Y. Choi , D. Cinabro , J. Dalseno , M. Danilov , Z. Doležal , Z. Drásal , D. Dutta , K. Dutta , S. Eidelman , D. Epifanov , H. Farhat , J. E. Fast , T. Ferber , V. Gaur , S. Ganguly , A. Garmash , R. Gillard , R. Glattauer , Y. M. Goh , B. Golob , J. Haba , T. Hara , H. Hayashii , X. H. He , T. Higuchi , Y. Hoshi , W. -S. Hou , H. J. Hyun , T. Iijima , A. Ishikawa , R. Itoh , Y. Iwasaki , T. Iwashita , I. Jaegle , T. Julius , T. Kawasaki , C. Kiesling , D. Y. Kim , J. B. Kim , J. H. Kim , M. J. Kim , Y. J. Kim , J. Klucar , 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 , P. Lukin , D. Matvienko , K. Miyabayashi , H. Miyata , G. B. Mohanty , A. Moll , R. Mussa , Y. Nagasaka , E. Nakano , M. Nakao , Z. Natkaniec , M. Nayak , E. Nedelkovska , N. K. Nisar , O. Nitoh , S. Ogawa , S. Okuno , G. Pakhlova , C. W. Park , H. K. Park , T. K. Pedlar , T. Peng , M. Petrič , L. E. Piilonen , M. Ritter , M. Röhrken , A. Rostomyan , S. Ryu , H. Sahoo , Y. Sakai , L. Santelj , T. Sanuki , V. Savinov , O. Schneider , G. Schnell , C. Schwanda , A. J. Schwartz , R. Seidl , 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 , Y. -S. Sohn , A. Sokolov , S. Stanič , M. Starič , M. Steder , T. Sumiyoshi , U. Tamponi , G. Tatishvili , Y. Teramoto , K. Trabelsi , M. Uchida , S. Uehara , T. Uglov , Y. Unno , S. Uno , P. Urquijo , Y. Usov , S. E. Vahsen , C. Van Hulse , P. Vanhoefer , G. Varner , A. Vinokurova , V. Vorobyev , M. N. Wagner , C. H. Wang , M. -Z. Wang , P. Wang , Y. Watanabe , H. Yamamoto , Y. Yamashita , S. Yashchenko , Y. Yook , C. C. Zhang , Z. P. Zhang , V. Zhilich , A. Zupanc

We search for CP violation in a sample of 4.7x10^4 Cabibbo suppressed D0 -> K+K-pi+pi- decays. We use 470 fb-1 of data recorded by the BaBar detector at the PeP2 asymmetric-energy e+e- storage rings running at center-of-mass energies near…

High Energy Physics - Experiment · Physics 2019-08-14 Maurizio Martinelli

Based on an 87-fb$^{-1}$ dataset collected by the Babar detector at the PEP-II asymmetric-energy $B$-Factory, a search for $D^{0}$--$\bar{D}^{0}$ mixing has been made using the semileptonic decay modes $D^{*+} \to \pi^{+} D^{0}, D^{0} \to…

High Energy Physics - Experiment · Physics 2008-11-26 B. Aubert , BABAR Collaboration

We review results from searches for mixing and CP violation in the D0-D0bar system. No evidence for mixing or CP violation is found, and limits are set for the mixing parameters x, y, x', y', and several CP-violating parameters.

High Energy Physics - Experiment · Physics 2008-11-26 A. J. Schwartz

Using 385 fb^-1 of e^+e^- collision data collected at center-of-mass energies around 10.6 GeV, we search for time-integrated CP violation in the singly Cabibbo-suppressed decays D0/D0bar --> pi^- pi^+ pi^0 and D0/D0bar --> K^- K^+ pi^0. Our…

High Energy Physics - Experiment · Physics 2010-04-12 BABAR Collaboration , B. Aubert

We report an improved measurement of D0-D0bar mixing and a search for CP violation in D0 decays to CP-even final states K+K- and pi+pi-. The measurement is based on the final Belle data sample of 976/fb. The results are y_CP=(1.11 +- 0.22…

High Energy Physics - Experiment · Physics 2015-12-22 Belle Collaboration

We discuss recent CLEO results on D0-D0bar and B0d-B0dbar mixing. The principal results are that for the D0 system, allowing for CP violations, the mixing amplitude x'<2.9% (95% C.L.), and for the B0d system, chi=0.198+-0.013+-0.014. We…

High Energy Physics - Experiment · Physics 2007-05-23 Harry N. Nelson

We report on a search for the doubly Cabibbo suppressed decay B+ -> D*+ pi0, based on a data sample of 657 million BBbar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric energy e+ e- collider. We…

High Energy Physics - Experiment · Physics 2008-11-26 Belle Collaboration , M. Iwabuchi , M. Nakao

We report on a measurement of CP-violating asymmetries (Acp) in the Cabibbo-suppressed D0 --> pi+ pi- and D0 --> K+K- decays reconstructed in a data sample corresponding to 5.9 fb-1 of integrated luminosity collected by the upgraded…

High Energy Physics - Experiment · Physics 2013-05-30 CDF Collaboration , T. Aaltonen