Observation of D⁰-D¯⁰ mixing using the CDF II detector

T Aaltonen¹, S Amerio², D Amidei³, A Anastassov⁴, A Annovi⁵, J Antos⁶, G Apollinari⁴, J A Appel⁴, T Arisawa⁷, A Artikov⁸, J Asaadi⁹, W Ashmanskas⁴, B Auerbach¹⁰, A Aurisano⁹, F Azfar¹¹, W Badgett⁴, T Bae¹², A Barbaro-Galtieri¹³, V E Barnes¹⁴, B A Barnett¹⁵, P Barria¹⁶, P Bartos⁶, M Bauce², F Bedeschi¹⁷, S Behari⁴, G Bellettini¹⁸, J Bellinger¹⁹, D Benjamin²⁰, A Beretvas⁴, A Bhatti²¹, K R Bland²², B Blumenfeld¹⁵, A Bocci²⁰, A Bodek²³, D Bortoletto¹⁴, J Boudreau²⁴, A Boveia²⁵, L Brigliadori²⁶, C Bromberg²⁷, E Brucken¹, J Budagov⁸, H S Budd²³, K Burkett⁴, G Busetto², P Bussey²⁸, P Butti¹⁸, A Buzatu²⁸, A Calamba²⁹, S Camarda³⁰, M Campanelli³¹, F Canelli²⁵, B Carls³², D Carlsmith¹⁹, R Carosi¹⁷, S Carrillo³³, B Casal³⁴, M Casarsa³⁵, A Castro²⁶, P Catastini³⁶, D Cauz³⁷, V Cavaliere³², M Cavalli-Sforza³⁰, A Cerri¹³, L Cerrito³¹, Y C Chen³⁸, M Chertok³⁹, G Chiarelli¹⁷, G Chlachidze⁴, K Cho¹², D Chokheli⁸, A Clark⁴⁰, C Clarke⁴¹, M E Convery⁴, J Conway⁵, M Corbo⁴, M Cordelli⁵, C A Cox³⁹, D J Cox³⁹, M Cremonesi¹⁷, D Cruz⁹, J Cuevas³⁴, R Culbertson⁴, N d'Ascenzo⁴, M Datta⁴, P de Barbaro²³, L Demortier²¹, M Deninno⁴², M D'Errico², F Devoto¹, A Di Canto¹⁸, B Di Ruzza⁴, J R Dittmann²², S Donati¹⁸, M D'Onofrio⁴³, M Dorigo⁴⁴, A Driutti³⁷, K Ebina⁷, R Edgar³, A Elagin⁹, R Erbacher³⁹, S Errede³², B Esham³², S Farrington¹¹, J P Fernández Ramos⁴⁵, R Field³³, G Flanagan⁴, R Forrest³⁹, M Franklin³⁶, J C Freeman⁴, H Frisch²⁵, Y Funakoshi⁷, C Galloni¹⁸, A F Garfinkel¹⁴, P Garosi¹⁶, H Gerberich³², E Gerchtein⁴, S Giagu⁴⁶, V Giakoumopoulou⁴⁷, K Gibson²⁴, C M Ginsburg⁴, N Giokaris⁴⁷, P Giromini⁵, G Giurgiu¹⁵, V Glagolev⁸, D Glenzinski⁴, M Gold⁴⁸, D Goldin⁹, A Golossanov⁴, G Gomez³⁴, G Gomez-Ceballos⁴⁹, M Goncharov⁴⁹, O González López⁴⁵, I Gorelov⁴⁸, A T Goshaw²⁰, K Goulianos²¹, E Gramellini⁴², S Grinstein³⁰, C Grosso-Pilcher²⁵, R C Group⁵⁰, J Guimaraes da Costa³⁶, S R Hahn⁴, J Y Han²³, F Happacher⁵, K Hara⁵¹, M Hare⁵², R F Harr⁴¹, T Harrington-Taber⁴, K Hatakeyama²², C Hays¹¹, J Heinrich⁵³, M Herndon¹⁹, A Hocker⁴, Z Hong⁹, W Hopkins⁴, S Hou³⁸, R E Hughes⁵⁴, U Husemann⁵⁵, M Hussein²⁷, J Huston²⁷, G Introzzi⁵⁶, M Iori⁵⁷, A Ivanov³⁹, E James⁴, D Jang²⁹, B Jayatilaka⁴, E J Jeon¹², S Jindariani⁴, M Jones¹⁴, K K Joo¹², S Y Jun²⁹, T R Junk⁴, M Kambeitz⁵⁸, T Kamon⁵⁹, P E Karchin⁴¹, A Kasmi²², Y Kato⁶⁰, W Ketchum²⁵, J Keung⁵³, B Kilminster⁴, D H Kim¹², H S Kim¹², J E Kim¹², M J Kim⁵, S H Kim⁵¹, S B Kim¹², Y J Kim¹², Y K Kim²⁵, N Kimura⁷, M Kirby⁴, K Knoepfel⁴, K Kondo⁷, D J Kong¹², J Konigsberg³³, A V Kotwal²⁰, M Kreps⁵⁸, J Kroll⁵³, M Kruse²⁰, T Kuhr⁵⁸, N Kulkarni⁴¹, M Kurata⁵¹, A T Laasanen¹⁴, S Lammel⁴, M Lancaster³¹, K Lannon⁵⁴, G Latino¹⁶, H S Lee¹², J S Lee¹², S Leo¹⁷, S Leone¹⁷, J D Lewis⁴, A Limosani²⁰, E Lipeles⁵³, A Lister⁴⁰, H Liu⁶¹, Q Liu¹⁴, T Liu⁴, S Lockwitz⁵⁵, A Loginov⁵⁵, D Lucchesi², A Lucà⁵, J Lueck⁵⁸, P Lujan¹³, P Lukens⁴, G Lungu²¹, J Lys⁵⁸, R Lysak⁶, R Madrak⁴, P Maestro¹⁶, S Malik²¹, G Manca⁴³, A Manousakis-Katsikakis⁴⁷, L Marchese⁴², F Margaroli⁴⁶, P Marino⁶², M Martínez³⁰, K Matera³², M E Mattson⁴¹, A Mazzacane⁴, P Mazzanti⁴², R McNulty⁴³, A Mehta⁴³, P Mehtala¹, C Mesropian²¹, T Miao⁴, D Mietlicki³, A Mitra³⁸, H Miyake⁵¹, S Moed⁴, N Moggi⁴², C S Moon⁴, R Moore⁴, M J Morello⁶², A Mukherjee⁴, Th Muller⁵⁸, P Murat⁴, M Mussini²⁶, J Nachtman⁴, Y Nagai⁵¹, J Naganoma⁷, I Nakano⁶³, A Napier⁵², J Nett⁹, C Neu⁶¹, T Nigmanov²⁴, L Nodulman¹⁰, S Y Noh¹², O Norniella³², L Oakes¹¹, S H Oh²⁰, Y D Oh¹², I Oksuzian⁶¹, T Okusawa⁶⁰, R Orava¹, L Ortolan³⁰, C Pagliarone³⁵, E Palencia³⁴, P Palni⁴⁸, V Papadimitriou⁴, W Parker¹⁹, G Pauletta³⁷, M Paulini²⁹, C Paus⁴⁹, T J Phillips²⁰, G Piacentino¹⁷, E Pianori⁵³, J Pilot³⁹, K Pitts³², C Plager⁶⁴, L Pondrom¹⁹, S Poprocki⁴, K Potamianos¹³, A Pranko¹³, F Prokoshin⁸, F Ptohos⁵, G Punzi¹⁸, N Ranjan¹⁴, I Redondo Fernández⁴⁵, P Renton¹¹, M Rescigno⁴⁶, F Rimondi⁴², L Ristori⁶⁵, A Robson²⁸, T Rodriguez⁵³, S Rolli⁵², M Ronzani¹⁸, R Roser⁴, J L Rosner²⁵, F Ruffini¹⁶, A Ruiz³⁴, J Russ²⁹, V Rusu⁴, W K Sakumoto²³, Y Sakurai⁷, L Santi³⁷, K Sato⁵¹, V Saveliev⁴, A Savoy-Navarro⁴, P Schlabach⁴, E E Schmidt⁴, T Schwarz³, L Scodellaro³⁴, F Scuri¹⁷, S Seidel⁴⁸, Y Seiya⁶⁰, A Semenov⁸, F Sforza¹⁸, S Z Shalhout³⁹, T Shears⁴³, P F Shepard²⁴, M Shimojima⁵¹, M Shochet²⁵, I Shreyber-Tecker⁶⁶, A Simonenko⁸, K Sliwa⁵², J R Smith³⁹, F D Snider⁴, H Song²⁴, V Sorin³⁰, R St Denis²⁸, M Stancari⁴, D Stentz⁴, J Strologas⁴⁸, Y Sudo⁵¹, A Sukhanov⁴, I Suslov⁸, K Takemasa⁵¹, Y Takeuchi⁵¹, J Tang²⁵, M Tecchio³, P K Teng³⁸, J Thom⁴, E Thomson⁵³, V Thukral⁹, D Toback⁹, S Tokar⁶, K Tollefson²⁷, T Tomura⁵¹, D Tonelli⁴, S Torre⁵, D Torretta⁴, P Totaro⁶⁷, M Trovato⁶², F Ukegawa⁵¹, S Uozumi¹², F Vázquez³³, G Velev⁴, C Vellidis⁴, C Vernieri⁶², M Vidal¹⁴, R Vilar³⁴, J Vizán³⁴, M Vogel⁴⁸, G Volpi⁵, P Wagner⁵³, R Wallny⁴, S M Wang³⁸, D Waters³¹, W C Wester 3rd⁴, D Whiteson⁵³, A B Wicklund¹⁰, S Wilbur³⁹, H H Williams⁵³, J S Wilson³, P Wilson⁴, B L Winer⁵⁴, P Wittich⁴, S Wolbers⁴, H Wolfe⁵⁴, T Wright³, X Wu⁴⁰, Z Wu²², K Yamamoto⁶⁰, D Yamato⁶⁰, T Yang⁴, U K Yang¹², Y C Yang¹², W-M Yao¹³, G P Yeh⁴, K Yi⁴, J Yoh⁴, K Yorita⁷, T Yoshida⁶⁰, G B Yu²⁰, I Yu¹², A M Zanetti³⁵, Y Zeng²⁰, C Zhou²⁰, S Zucchelli²⁶

Affiliations

¹ Division of High Energy Physics, Department of Physics, University of Helsinki, FIN-00014, Helsinki, Finland; Helsinki Institute of Physics, FIN-00014, Helsinki, Finland.
² Istituto Nazionale di Fisica Nucleare, Sezione di Padova and University of Padova, I-35131 Padova, Italy.
³ University of Michigan, Ann Arbor, Michigan 48109, USA.
⁴ Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA.
⁵ Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy.
⁶ Comenius University, 842 48 Bratislava, Slovakia; Institute of Experimental Physics, 040 01 Kosice, Slovakia.
⁷ Waseda University, Tokyo 169, Japan.
⁸ Joint Institute for Nuclear Research, RU-141980 Dubna, Russia.
⁹ Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA.
¹⁰ Argonne National Laboratory, Argonne, Illinois 60439, USA.
¹¹ University of Oxford, Oxford OX1 3RH, United Kingdom.
¹² Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul, 120-750, Korea.
¹³ Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
¹⁴ Purdue University, West Lafayette, Indiana 47907, USA.
¹⁵ The Johns Hopkins University, Baltimore, Maryland 21218, USA.
¹⁶ Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy, and University of Siena, I-56127 Pisa, Italy.
¹⁷ Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy.
¹⁸ Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy, and University of Pisa, I-56127 Pisa, Italy.
¹⁹ University of Wisconsin, Madison, Wisconsin 53706, USA.
²⁰ Duke University, Durham, North Carolina 27708, USA.
²¹ The Rockefeller University, New York, New York 10065, USA.
²² Baylor University, Waco, Texas 76798, USA.
²³ University of Rochester, Rochester, New York 14627, USA.
²⁴ University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA.
²⁵ Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA.
²⁶ Istituto Nazionale di Fisica Nucleare Bologna, I-40127 Bologna, Italy and University of Bologna, I-40127 Bologna, Italy.
²⁷ Michigan State University, East Lansing, Michigan 48824, USA.
²⁸ Glasgow University, Glasgow G12 8QQ, United Kingdom.
²⁹ Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
³⁰ Institut de Fisica d'Altes Energies, ICREA, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain.
³¹ University College London, London WC1E 6BT, United Kingdom.
³² University of Illinois, Urbana, Illinois 61801, USA.
³³ University of Florida, Gainesville, Florida 32611, USA.
³⁴ Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain.
³⁵ Istituto Nazionale di Fisica Nucleare Trieste, I-33100 Udine, Italy.
³⁶ Harvard University, Cambridge, Massachusetts 02138, USA.
³⁷ Istituto Nazionale di Fisica Nucleare Trieste, I-33100 Udine, Italy and Gruppo Collegato di Udine, I-33100 Udine, Italy and University of Udine, I-33100 Udine, Italy.
³⁸ Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China.
³⁹ University of California, Davis, Davis, California 95616, USA.
⁴⁰ University of Geneva, CH-1211 Geneva 4, Switzerland.
⁴¹ Wayne State University, Detroit, Michigan 48201, USA.
⁴² Istituto Nazionale di Fisica Nucleare Bologna, I-40127 Bologna, Italy.
⁴³ University of Liverpool, Liverpool L69 7ZE, United Kingdom.
⁴⁴ Istituto Nazionale di Fisica Nucleare Trieste, I-33100 Udine, Italy and University of Trieste, I-34127 Trieste, Italy.
⁴⁵ Centro de Investigaciones Energeticas Medioambientales y Tecnologicas, E-28040 Madrid, Spain.
⁴⁶ Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1.
⁴⁷ University of Athens, 157 71 Athens, Greece.
⁴⁸ University of New Mexico, Albuquerque, New Mexico 87131, USA.
⁴⁹ Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
⁵⁰ Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA and University of Virginia, Charlottesville, Virginia 22906, USA.
⁵¹ University of Tsukuba, Tsukuba, Ibaraki 305, Japan.
⁵² Tufts University, Medford, Massachusetts 02155, USA.
⁵³ University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA.
⁵⁴ The Ohio State University, Columbus, Ohio 43210, USA.
⁵⁵ Yale University, New Haven, Connecticut 06520, USA.
⁵⁶ Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy, and INFN Pavia, I-27100 Pavia, Italy, and University of Pavia, I-27100 Pavia, Italy.
⁵⁷ Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1 and Sapienza Università di Roma, I-00185 Roma, Italy.
⁵⁸ Institut für Experimentelle Kernphysik, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany.
⁵⁹ Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul, 120-750, Korea and Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA.
⁶⁰ Osaka City University, Osaka 558-8585, Japan.
⁶¹ University of Virginia, Charlottesville, Virginia 22906, USA.
⁶² Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy, and Scuola Normale Superiore, I-56127 Pisa, Italy.
⁶³ Okayama University, Okayama 700-8530, Japan.
⁶⁴ University of California, Los Angeles, Los Angeles, California 90024, USA.
⁶⁵ Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA and Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy.
⁶⁶ Institution for Theoretical and Experimental Physics, ITEP, Moscow 117259, Russia.
⁶⁷ Istituto Nazionale di Fisica Nucleare, Sezione di Padova.

PMID: 24476256
DOI: 10.1103/PhysRevLett.111.231802

Observation of D⁰-D¯⁰ mixing using the CDF II detector

T Aaltonen et al. Phys Rev Lett. 2013.

. 2013 Dec 6;111(23):231802.

doi: 10.1103/PhysRevLett.111.231802. Epub 2013 Dec 4.

Authors

Affiliations

¹ Division of High Energy Physics, Department of Physics, University of Helsinki, FIN-00014, Helsinki, Finland; Helsinki Institute of Physics, FIN-00014, Helsinki, Finland.
² Istituto Nazionale di Fisica Nucleare, Sezione di Padova and University of Padova, I-35131 Padova, Italy.
³ University of Michigan, Ann Arbor, Michigan 48109, USA.
⁴ Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA.
⁵ Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy.
⁶ Comenius University, 842 48 Bratislava, Slovakia; Institute of Experimental Physics, 040 01 Kosice, Slovakia.
⁷ Waseda University, Tokyo 169, Japan.
⁸ Joint Institute for Nuclear Research, RU-141980 Dubna, Russia.
⁹ Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA.
¹⁰ Argonne National Laboratory, Argonne, Illinois 60439, USA.
¹¹ University of Oxford, Oxford OX1 3RH, United Kingdom.
¹² Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul, 120-750, Korea.
¹³ Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
¹⁴ Purdue University, West Lafayette, Indiana 47907, USA.
¹⁵ The Johns Hopkins University, Baltimore, Maryland 21218, USA.
¹⁶ Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy, and University of Siena, I-56127 Pisa, Italy.
¹⁷ Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy.
¹⁸ Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy, and University of Pisa, I-56127 Pisa, Italy.
¹⁹ University of Wisconsin, Madison, Wisconsin 53706, USA.
²⁰ Duke University, Durham, North Carolina 27708, USA.
²¹ The Rockefeller University, New York, New York 10065, USA.
²² Baylor University, Waco, Texas 76798, USA.
²³ University of Rochester, Rochester, New York 14627, USA.
²⁴ University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA.
²⁵ Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA.
²⁶ Istituto Nazionale di Fisica Nucleare Bologna, I-40127 Bologna, Italy and University of Bologna, I-40127 Bologna, Italy.
²⁷ Michigan State University, East Lansing, Michigan 48824, USA.
²⁸ Glasgow University, Glasgow G12 8QQ, United Kingdom.
²⁹ Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
³⁰ Institut de Fisica d'Altes Energies, ICREA, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain.
³¹ University College London, London WC1E 6BT, United Kingdom.
³² University of Illinois, Urbana, Illinois 61801, USA.
³³ University of Florida, Gainesville, Florida 32611, USA.
³⁴ Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain.
³⁵ Istituto Nazionale di Fisica Nucleare Trieste, I-33100 Udine, Italy.
³⁶ Harvard University, Cambridge, Massachusetts 02138, USA.
³⁷ Istituto Nazionale di Fisica Nucleare Trieste, I-33100 Udine, Italy and Gruppo Collegato di Udine, I-33100 Udine, Italy and University of Udine, I-33100 Udine, Italy.
³⁸ Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China.
³⁹ University of California, Davis, Davis, California 95616, USA.
⁴⁰ University of Geneva, CH-1211 Geneva 4, Switzerland.
⁴¹ Wayne State University, Detroit, Michigan 48201, USA.
⁴² Istituto Nazionale di Fisica Nucleare Bologna, I-40127 Bologna, Italy.
⁴³ University of Liverpool, Liverpool L69 7ZE, United Kingdom.
⁴⁴ Istituto Nazionale di Fisica Nucleare Trieste, I-33100 Udine, Italy and University of Trieste, I-34127 Trieste, Italy.
⁴⁵ Centro de Investigaciones Energeticas Medioambientales y Tecnologicas, E-28040 Madrid, Spain.
⁴⁶ Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1.
⁴⁷ University of Athens, 157 71 Athens, Greece.
⁴⁸ University of New Mexico, Albuquerque, New Mexico 87131, USA.
⁴⁹ Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
⁵⁰ Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA and University of Virginia, Charlottesville, Virginia 22906, USA.
⁵¹ University of Tsukuba, Tsukuba, Ibaraki 305, Japan.
⁵² Tufts University, Medford, Massachusetts 02155, USA.
⁵³ University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA.
⁵⁴ The Ohio State University, Columbus, Ohio 43210, USA.
⁵⁵ Yale University, New Haven, Connecticut 06520, USA.
⁵⁶ Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy, and INFN Pavia, I-27100 Pavia, Italy, and University of Pavia, I-27100 Pavia, Italy.
⁵⁷ Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1 and Sapienza Università di Roma, I-00185 Roma, Italy.
⁵⁸ Institut für Experimentelle Kernphysik, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany.
⁵⁹ Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul, 120-750, Korea and Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA.
⁶⁰ Osaka City University, Osaka 558-8585, Japan.
⁶¹ University of Virginia, Charlottesville, Virginia 22906, USA.
⁶² Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy, and Scuola Normale Superiore, I-56127 Pisa, Italy.
⁶³ Okayama University, Okayama 700-8530, Japan.
⁶⁴ University of California, Los Angeles, Los Angeles, California 90024, USA.
⁶⁵ Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA and Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy.
⁶⁶ Institution for Theoretical and Experimental Physics, ITEP, Moscow 117259, Russia.
⁶⁷ Istituto Nazionale di Fisica Nucleare, Sezione di Padova.

PMID: 24476256
DOI: 10.1103/PhysRevLett.111.231802

Abstract

We measure the time dependence of the ratio of decay rates for D0→K(+)π(-) to the Cabibbo-favored decay D(0)→K(-)π(+). The charge conjugate decays are included. A signal of 3.3×10(4) D(*+)→π(+)D(0), D(0)→K(+)π(-) decays is obtained with D0 proper decay times between 0.75 and 10 mean D0 lifetimes. The data were recorded with the CDF II detector at the Fermilab Tevatron and correspond to an integrated luminosity of 9.6 fb(-1) for pp¯ collisions at √s=1.96 TeV. Assuming CP conservation, we search for D0-D¯0 mixing and measure the mixing parameters to be R(D)=(3.51±0.35)×10(-3), y'=(4.3±4.3)×10(-3), and x'2=(0.08±0.18)×10(-3). We report Bayesian probability intervals in the x'2-y' plane and find that the significance of excluding the no-mixing hypothesis is equivalent to 6.1 Gaussian standard deviations, providing the second observation of D0-D¯0 mixing from a single experiment.

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Observation of D⁰-D¯⁰ mixing using the CDF II detector

Affiliations

Observation of D⁰-D¯⁰ mixing using the CDF II detector

Authors

Affiliations

Abstract

LinkOut - more resources

Full Text Sources

Other Literature Sources

Research Materials

Miscellaneous