We report a measurement of the indirect CP-violating asymmetries (AΓ) between effective lifetimes of anticharm and charm mesons reconstructed in D0→K+K− and D0→π+π− decays. We use the full data set of proton-antiproton collisions collected by the Collider Detector at Fermilab experiment and corresponding to 9.7~fb−1 of integrated luminosity. The strong-interaction decay D∗+→D0π+ is used to identify the meson at production as D0 or D⎯⎯⎯0. We statistically subtract D0 and D⎯⎯⎯0 mesons originating from b-hadron decays and measure the yield asymmetry between anticharm and charm decays as a function of decay time. We measure AΓ(K+K−)=(−0.19±0.15(stat)±0.04(syst))% and AΓ(π+π−)=(−0.01±0.18(stat)±0.03(syst))%. The results are consistent with the hypothesis of CP symmetry and their combination yields AΓ=(−0.12±0.12)%.

Measurement of indirect CP-violating asymmetries in D0→K+K− and D0→π+π− decays at CDF

BRIGLIADORI, LUCA;CASTRO, ANDREA;MOGGI, NICCOLO';MUSSINI, MANUEL;ZUCCHELLI, STEFANO
2014

Abstract

We report a measurement of the indirect CP-violating asymmetries (AΓ) between effective lifetimes of anticharm and charm mesons reconstructed in D0→K+K− and D0→π+π− decays. We use the full data set of proton-antiproton collisions collected by the Collider Detector at Fermilab experiment and corresponding to 9.7~fb−1 of integrated luminosity. The strong-interaction decay D∗+→D0π+ is used to identify the meson at production as D0 or D⎯⎯⎯0. We statistically subtract D0 and D⎯⎯⎯0 mesons originating from b-hadron decays and measure the yield asymmetry between anticharm and charm decays as a function of decay time. We measure AΓ(K+K−)=(−0.19±0.15(stat)±0.04(syst))% and AΓ(π+π−)=(−0.01±0.18(stat)±0.03(syst))%. The results are consistent with the hypothesis of CP symmetry and their combination yields AΓ=(−0.12±0.12)%.
2014
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;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;M. Deninno;M. D’Errico;F. Devoto;A. Di Canto;B. Di Ruzza;J. R. Dittmann;S. Donati;M. D’Onofrio;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;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;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. H. Kim;S. B. Kim;Y. J. Kim;Y. K. Kim;N. Kimura;M. Kirby;K. Knoepfel;K. Kondo;D. J. Kong;J. Konigsberg;A. V. Kotwal;M. Kreps;J. Kroll;M. Kruse;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;D. Lucchesi;A. Lucà;J. Lueck;P. Lujan;P. Lukens;G. Lungu;J. Lys;R. Lysak;R. Madrak;P. Maestro;S. Malik;G. Manca;A. Manousakis-Katsikakis;L. Marchese;F. Margaroli;P. Marino;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;E. Pianori;J. Pilot;K. Pitts;C. Plager;L. Pondrom;S. Poprocki;K. Potamianos;A. Pranko;F. Prokoshin;F. Ptohos;G. Punzi;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;H. Song;V. Sorin;R. St. Denis;M. Stancari;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;G. Velev;C. Vellidis;C. Vernieri;M. Vidal;R. Vilar;J. Vizán;M. Vogel;G. Volpi;F. Vázquez;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
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/414767
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