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We report the results of a search for D0-D0bar mixing in D0 -> K+ pi- decays based on 400 fb^{-1} of data accumulated by the Belle detector at KEKB. Both assuming CP conservation and allowing for CP violation, we fit the decay-time…

High Energy Physics - Experiment · Physics 2019-08-14 L. M. Zhang , Z. P. Zhang , J. Li

We present a preliminary search for D0--anti-D0 mixing using the decays D0 --> K+ pi- pi0, additionally presenting Dalitz-plot distributions and a measurement of the branching ratio for this mode. A new tagging technique is used to produce…

High Energy Physics - Experiment · Physics 2019-08-14 M. G. Wilson

Due to the quantum correlation between the pair-produced D0 and D0bar from the decay of the psi(3770), the time-integrated single and double tag decay rates depend on charm mixing amplitudes, doubly-Cabibbo-suppressed amplitudes, and the…

High Energy Physics - Experiment · Physics 2010-04-08 D. Asner , 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 present evidence for D0-D0bar mixing in $D^0 \to K^{+}\pi^{-}$ decays from 384 fb^{-1} of e+e- colliding-beam data recorded near sqrt(s)=10.6 GeV with the Babar detector at the PEP-II storage rings at SLAC. We find the mixing parameters…

High Energy Physics - Experiment · Physics 2007-05-23 Kevin Flood

Using 281/pb of data recorded by the CLEO-c detector observing e+e- collisions at the psi(3770), corresponding to 1.8 million D Dbar pairs, the substructure of the decay D+ to pi+ pi- pi+ is investigated using the Dalitz plot technique. The…

High Energy Physics - Experiment · Physics 2007-05-23 G. Bonvicini , CLEO Collaboration

The CLEO collaboration reported observation of the `wrong sign' decay $D^0 \to K^+\pi^-$ in 1993. Upgrades have been made to the CLEO detector, including installation of a silicon vertex detector, which provide substantial improvements in…

High Energy Physics - Phenomenology · Physics 2007-05-23 David M. Asner

We present an observation and rate measurement of the decay D0 -> K+pi-pi0 produced in 9/fb of e+e- collisions near the Upsilon(4S) resonance. The signal is inconsistent with an upward fluctuation of the background by 4.9 standard…

High Energy Physics - Experiment · Physics 2010-05-28 G. Brandenburg , CLEO Collaboration

We present a Dalitz plot analysis of the decay D+ -> K- pi+ pi+ based on 281 pb-1 of e+e- collision data produced at the psi(3770) by CESR and observed with the CLEO-c detector. We select 67086 candidate events with a small, ~1.1%,…

High Energy Physics - Experiment · Physics 2019-08-15 G. Bonvicini

We present evidence of $D^0$-$\bar{D^0}$ mixing using a time-dependent amplitude analysis of the decay D0->K+pi-pi0 in a data sample of 384 fb^-1 collected with the BaBar detector at the PEP-II e+e- collider at SLAC. Assuming CP…

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

We measure the time dependence of the ratio of decay rates for D0 -> K+ pi- to the Cabibbo-favored decay D0 -> K- pi+. The charge conjugate decays are included. A signal of 3.3 x 10^4 D*+ -> pi+ D0, D0 -> K+ pi- decays is obtained with D0…

High Energy Physics - Experiment · Physics 2013-12-16 CDF Collaboration , T. Aaltonen , S. Amerio , D. Amidei , A. Anastassov , A. Annovi , J. Antos , G. Apollinari , J. A. Appel , T. Arisawa , A. Artikov , J. Asaadi , W. Ashmanskas , B. Auerbach , A. Aurisano , F. Azfar , W. Badgett , T. Bae , A. Barbaro-Galtieri , V. E. Barnes , B. A. Barnett , P. Barria , P. Bartos , M. Bauce , F. Bedeschi , S. Behari , G. Bellettini , J. Bellinger , D. Benjamin , A. Beretvas , A. Bhatti , K. R. Bland , B. Blumenfeld , A. Bocci , A. Bodek , D. Bortoletto , J. Boudreau , A. Boveia , L. Brigliadori , C. Bromberg , E. Brucken , J. Budagov , H. S. Budd , K. Burkett , G. Busetto , P. Bussey , P. Butti , A. Buzatu , A. Calamba , S. Camarda , M. Campanelli , F. Canelli , B. Carls , D. Carlsmith , R. Carosi , S. Carrillo , B. Casal , M. Casarsa , A. Castro , P. Catastini , D. Cauz , V. Cavaliere , M. Cavalli-Sforza , A. Cerri , L. Cerrito , Y. C. Chen , M. Chertok , G. Chiarelli , G. Chlachidze , K. Cho , D. Chokheli , A. Clark , C. Clarke , M. E. Convery , J. Conway , M. Corbo , M. Cordelli , C. A. Cox , D. J. Cox , M. Cremonesi , D. Cruz , J. Cuevas , R. Culbertson , N. d'Ascenzo , M. Datta , P. de Barbaro , L. Demortier , L. Marchese , M. Deninno , F. Devoto , M. D'Errico , A. Di Canto , B. Di Ruzza , J. R. Dittmann , M. D'Onofrio , S. Donati , M. Dorigo , A. Driutti , K. Ebina , R. Edgar , A. Elagin , R. Erbacher , S. Errede , B. Esham , S. Farrington , J. P. Fernández Ramos , R. Field , G. Flanagan , R. Forrest , M. Franklin , J. C. Freeman , H. Frisch , Y. Funakoshi , C. Galloni , A. F. Garfinkel , P. Garosi , H. Gerberich , E. Gerchtein , S. Giagu , V. Giakoumopoulou , K. Gibson , C. M. Ginsburg , N. Giokaris , P. Giromini , G. Giurgiu , V. Glagolev , D. Glenzinski , M. Gold , D. Goldin , A. Golossanov , G. Gomez , G. Gomez-Ceballos , M. Goncharov , O. González López , I. Gorelov , A. T. Goshaw , K. Goulianos , E. Gramellini , S. Grinstein , C. Grosso-Pilcher , R. C. Group , J. Guimaraes da Costa , S. R. Hahn , J. Y. Han , F. Happacher , K. Hara , M. Hare , R. F. Harr , T. Harrington-Taber , K. Hatakeyama , C. Hays , J. Heinrich , M. Herndon , A. Hocker , Z. Hong , W. Hopkins , S. Hou , R. E. Hughes , U. Husemann , M. Hussein , J. Huston , G. Introzzi , M. Iori , A. Ivanov , E. James , D. Jang , B. Jayatilaka , E. J. Jeon , S. Jindariani , M. Jones , K. K. Joo , S. Y. Jun , T. R. Junk , M. Kambeitz , T. Kamon , P. E. Karchin , A. Kasmi , Y. Kato , W. Ketchum , J. Keung , B. Kilminster , D. H. Kim , H. S. Kim , J. E. Kim , M. J. Kim , S. B. Kim , S. H. Kim , Y. K. Kim , Y. J. Kim , N. Kimura , M. Kirby , K. Knoepfel , K. Kondo , D. J. Kong , J. Konigsberg , A. V. Kotwal , M. Kreps , J. Kroll , M. Kruse , N. Kulkarni , T. Kuhr , M. Kurata , A. T. Laasanen , S. Lammel , M. Lancaster , K. Lannon , G. Latino , H. S. Lee , J. S. Lee , S. Leo , S. Leone , J. D. Lewis , A. Limosani , E. Lipeles , A. Lister , H. Liu , Q. Liu , T. Liu , S. Lockwitz , A. Loginov , A. Lucà , D. Lucchesi , J. Lueck , P. Lujan , P. Lukens , G. Lungu , J. Lys , R. Lysak , R. Madrak , P. Maestro , S. Malik , G. Manca , A. Manousakis-Katsikakis , F. Margaroli , P. Marino , M. Martínez , K. Matera , M. E. Mattson , A. Mazzacane , P. Mazzanti , R. McNulty , A. Mehta , P. Mehtala , C. Mesropian , T. Miao , D. Mietlicki , A. Mitra , H. Miyake , S. Moed , N. Moggi , C. S. Moon , R. Moore , M. J. Morello , A. Mukherjee , Th. Muller , P. Murat , M. Mussini , J. Nachtman , Y. Nagai , J. Naganoma , I. Nakano , A. Napier , J. Nett , C. Neu , T. Nigmanov , L. Nodulman , S. Y. Noh , O. Norniella , L. Oakes , S. H. Oh , Y. D. Oh , I. Oksuzian , T. Okusawa , R. Orava , L. Ortolan , C. Pagliarone , E. Palencia , P. Palni , V. Papadimitriou , W. Parker , G. Pauletta , M. Paulini , C. Paus , T. J. Phillips , G. Piacentino , E. Pianori , J. Pilot , K. Pitts , C. Plager , L. Pondrom , S. Poprocki , K. Potamianos , F. Prokoshin , A. Pranko , F. Ptohos , G. Punzi , N. Ranjan , I. Redondo Fernández , P. Renton , M. Rescigno , F. Rimondi , L. Ristori , A. Robson , T. Rodriguez , S. Rolli , M. Ronzani , R. Roser , J. L. Rosner , F. Ruffini , A. Ruiz , J. Russ , V. Rusu , W. K. Sakumoto , Y. Sakurai , L. Santi , K. Sato , V. Saveliev , A. Savoy-Navarro , P. Schlabach , E. E. Schmidt , T. Schwarz , L. Scodellaro , F. Scuri , S. Seidel , Y. Seiya , A. Semenov , F. Sforza , S. Z. Shalhout , T. Shears , P. F. Shepard , M. Shimojima , M. Shochet , I. Shreyber-Tecker , A. Simonenko , K. Sliwa , J. R. Smith , F. D. Snider , V. Sorin , H. Song , M. Stancari , R. St. Denis , D. Stentz , J. Strologas , Y. Sudo , A. Sukhanov , I. Suslov , K. Takemasa , Y. Takeuchi , J. Tang , M. Tecchio , P. K. Teng , J. Thom , E. Thomson , V. Thukral , D. Toback , S. Tokar , K. Tollefson , T. Tomura , D. Tonelli , S. Torre , D. Torretta , P. Totaro , M. Trovato , F. Ukegawa , S. Uozumi , F. Vázquez , G. Velev , C. Vellidis , C. Vernieri , M. Vidal , R. Vilar , J. Vizán , M. Vogel , G. Volpi , P. Wagner , R. Wallny , S. M. Wang , D. Waters , W. C. Wester , D. Whiteson , A. B. Wicklund , S. Wilbur , H. H. Williams , J. S. Wilson , P. Wilson , B. L. Winer , P. Wittich , S. Wolbers , H. Wolfe , T. Wright , X. Wu , Z. Wu , K. Yamamoto , D. Yamato , T. Yang , U. K. Yang , Y. C. Yang , W. -M. Yao , G. P. Yeh , K. Yi , J. Yoh , K. Yorita , T. Yoshida , G. B. Yu , I. Yu , A. M. Zanetti , Y. Zeng , C. Zhou , S. Zucchelli

We perform a Dalitz plot analysis of D^+ -> K^-pi^+pi^+ decay with the CLEO-c data set of 572 pb^-1 of e^+e^- collisions accumulated at the psi(3770). This corresponds to 1.6 million D^+D^- pairs from which we select 140793 candidate events…

High Energy Physics - Experiment · Physics 2010-04-08 CLEO Collaboration , G. Bonvicini

Based on a dataset acquired by the BaBar experiment running on and near the $\Upsilon(4S)$ resonance from 1999-2002, limits are set on the rate of $D^0$-- $\kern 0.2em\bar{\kern -0.2em D}{}^0$ mixing using the decay mode $D^{*+} \to D^0…

High Energy Physics - Experiment · Physics 2019-08-14 U. Egede

We exploit the quantum coherence between pair-produced D0 and D0bar in psi(3770) decays to study charm mixing and to make a first measurement of the relative strong phase \delta between D0 -> K+pi- and D0bar -> K+pi-. Using 281 pb^-1 of…

High Energy Physics - Experiment · Physics 2010-01-05 W. M. Sun

We measure the time dependence of the ratio of decay rates for the rare decay D0->K+pi- to the Cabibbo-favored decay D0->K-pi+. We use a signal of 12.7 x10^3 D0->K+pi decays with proper decay times between 0.75 and 10 mean D0 lifetimes. The…

High Energy Physics - Experiment · Physics 2010-05-12 CDF Collaboration , T. Aaltonen

We report on recent measurements of the $D^0-\bar{D}^0$ mixing and $CP$ violation parameters performed by the Belle experiment. The evidence for the mixing phenomena in the system of neutral $D$ mesons, arising in the study of $D^0\to…

High Energy Physics - Experiment · Physics 2007-12-07 B. Golob

We report the recent two results of D0-D0bar mixing studies at Belle in D0->K+K-/pi+pi- and D0->K_S^0 pi+pi- decays. The former measures the relative difference of the lifetimes y_{CP}, giving the evidence of D0-D0bar mixing; the latter…

High Energy Physics - Experiment · Physics 2019-08-13 L. M. Zhang

We present results of a search for D0-D0bar mixing and doubly-Cabibbo-suppressed decays of the D0 in Fermilab experiment E791, a fixed-target charm hadroproduction experiment. We look for evidence of mixing in the decay chain D* -> pi D0 ->…

High Energy Physics - Experiment · Physics 2012-08-27 The Fermilab E791 Collaboration

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

We perform a Dalitz plot analysis of the decay Ds to K+K-pi+ with the CLEO-c data set of 586/pb of e+e- collisions accumulated at sqrt(s) = 4.17 GeV. This corresponds to about 0.57 million D_s+D_s(*)- pairs from which we select 14400…

High Energy Physics - Experiment · Physics 2010-04-08 The CLEO Collaboration , R. E. Mitchell