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Precision measurements in charm physics offer a window into a unique sector of potential New Physics interactions. LHCb is well equipped to take advantage of the enormous production cross-section of charm mesons in $pp$ collisions at…

High Energy Physics - Experiment · Physics 2019-08-13 S. Borghi

We report on precise measurements of charmed hadron lifetimes from the Belle II experiment and on the measurement of the angle $\gamma$ combining Belle and Belle II data. To measure charmed hadron lifetimes we use samples of…

High Energy Physics - Experiment · Physics 2023-03-01 R. Manfredi

We review results on rare and forbidden decays of D^0, D^+, and D^+_s mesons from experiments at FNAL. The decay modes studied have two leptons in the final state and, if observed, would constitute evidence for flavor-changing…

High Energy Physics - Experiment · Physics 2007-05-23 A. J. Schwartz

We report the first calculation using physical light-quark masses of the electromagnetic form factor $V(z)$ describing the long-distance contributions to the $K^+\to\pi^+\ell^+\ell^-$ decay amplitude. The calculation is performed on a 2+1…

High Energy Physics - Lattice · Physics 2023-01-25 P. A. Boyle , F. Erben , J. M. Flynn , V. Gülpers , R. C. Hill , R. Hodgson , A. Jüttner , F. Ó hÓgáin , A. Portelli , C. T. Sachrajda

Using 230.2 fb^(-1) of e+e- annihilation data collected with the BABAR detector at and near the peak of the Y(4S) resonance, 489 +/- 55 events containing the pure leptonic decay D_s^+ --> mu^+ nu_mu have been isolated in charm-tagged…

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

We report the first observation of a charm-strange meson D_sJ(2632) at a mass of 2632.5+/-1.7 MeV/c^2 in data from SELEX, the charm hadro-production experiment E781 at Fermilab. This state is seen in two decay modes, D_s eta and D^0 K^+. In…

High Energy Physics - Experiment · Physics 2019-08-14 Peter S. Cooper

We report a measurement of the $D^0$ and $D^+$ lifetimes using $D^0\to K^-\pi^+$ and $D^+\to K^-\pi^+\pi^+$ decays reconstructed in $e^+e^-\to c\bar{c}$ data recorded by the Belle II experiment at the SuperKEKB asymmetric-energy $e^+e^-$…

High Energy Physics - Experiment · Physics 2021-11-23 Belle II collaboration , F. Abudinén , I. Adachi , K. Adamczyk , L. Aggarwal , H. Ahmed , H. Aihara , N. Akopov , A. Aloisio , N. Anh Ky , D. M. Asner , H. Atmacan , V. Aushev , V. Babu , S. Bacher , H. Bae , S. Baehr , S. Bahinipati , P. Bambade , Sw. Banerjee , S. Bansal , M. Barrett , J. Baudot , M. Bauer , A. Baur , J. Becker , P. K. Behera , J. V. Bennett , E. Bernieri , F. U. Bernlochner , M. Bertemes , E. Bertholet , M. Bessner , S. Bettarini , V. Bhardwaj , F. Bianchi , T. Bilka , S. Bilokin , D. Biswas , A. Bobrov , D. Bodrov , A. Bolz , A. Bozek , M. Bračko , P. Branchini , N. Braun , R. A. Briere , T. E. Browder , A. Budano , S. Bussino , M. Campajola , L. Cao , G. Casarosa , C. Cecchi , D. Červenkov , M. -C. Chang , P. Chang , R. Cheaib , V. Chekelian , C. Chen , Y. -T. Chen , B. G. Cheon , K. Chilikin , K. Chirapatpimol , H. -E. Cho , K. Cho , S. -J. Cho , S. -K. Choi , S. Choudhury , D. Cinabro , L. Corona , L. M. Cremaldi , S. Cunliffe , T. Czank , F. Dattola , E. De La Cruz-Burelo , G. de Marino , G. De Nardo , G. De Pietro , R. de Sangro , M. Destefanis , S. Dey , A. De Yta-Hernandez , A. Di Canto , F. Di Capua , J. Dingfelder , Z. Doležal , I. Domínguez Jiménez , T. V. Dong , M. Dorigo , K. Dort , D. Dossett , S. Dubey , S. Duell , G. Dujany , P. Ecker , D. Epifanov , T. Ferber , D. Ferlewicz , G. Finocchiaro , K. Flood , A. Fodor , F. Forti , B. G. Fulsom , A. Gabrielli , N. Gabyshev , A. Gaz , A. Gellrich , G. Giakoustidis , R. Giordano , A. Giri , A. Glazov , B. Gobbo , R. Godang , P. Goldenzweig , B. Golob , W. Gradl , E. Graziani , D. Greenwald , T. Gu , Y. Guan , K. Gudkova , J. Guilliams , C. Hadjivasiliou , S. Halder , K. Hara , T. Hara , O. Hartbrich , K. Hayasaka , H. Hayashii , S. Hazra , C. Hearty , I. Heredia de la Cruz , M. Hernández Villanueva , A. Hershenhorn , T. Higuchi , E. C. Hill , H. Hirata , M. Hoek , M. Hohmann , C. -L. Hsu , T. Humair , T. Iijima , K. Inami , G. Inguglia , A. Ishikawa , R. Itoh , M. Iwasaki , Y. Iwasaki , W. W. Jacobs , D. E. Jaffe , E. -J. Jang , S. Jia , Y. Jin , H. Junkerkalefeld , H. Kakuno , A. B. Kaliyar , J. Kandra , K. H. Kang , R. Karl , G. Karyan , Y. Kato , T. Kawasaki , C. Kiesling , C. -H. Kim , D. Y. Kim , Y. -K. Kim , Y. Kim , T. D. Kimmel , K. Kinoshita , P. Kodyš , T. Koga , S. Kohani , T. Konno , S. Korpar , E. Kovalenko , R. Kowalewski , T. M. G. Kraetzschmar , F. Krinner , P. Križan , P. Krokovny , T. Kuhr , J. Kumar , M. Kumar , R. Kumar , K. Kumara , S. Kurz , A. Kuzmin , Y. -J. Kwon , S. Lacaprara , K. Lalwani , T. Lam , L. Lanceri , J. S. Lange , M. Laurenza , K. Lautenbach , F. R. Le Diberder , S. C. Lee , P. Leitl , D. Levit , C. Li , L. K. Li , J. Libby , K. Lieret , Z. Liptak , Q. Y. Liu , D. Liventsev , S. Longo , T. Lueck , C. Lyu , R. Manfredi , E. Manoni , C. Marinas , A. Martini , T. Matsuda , K. Matsuoka , D. Matvienko , J. A. McKenna , F. Meier , M. Merola , F. Metzner , C. Miller , K. Miyabayashi , R. Mizuk , G. B. Mohanty , N. Molina-Gonzalez , H. Moon , H. -G. Moser , M. Mrvar , C. Murphy , R. Mussa , I. Nakamura , K. R. Nakamura , M. Nakao , H. Nakazawa , Z. Natkaniec , A. Natochii , G. Nazaryan , C. Niebuhr , M. Niiyama , N. K. Nisar , S. Nishida , K. Nishimura , S. Ogawa , Y. Onishchuk , H. Ono , Y. Onuki , P. Oskin , E. R. Oxford , H. Ozaki , P. Pakhlov , A. Paladino , T. Pang , A. Panta , E. Paoloni , S. Pardi , H. Park , S. -H. Park , B. Paschen , A. Passeri , A. Pathak , S. Patra , S. Paul , T. K. Pedlar , I. Peruzzi , R. Peschke , R. Pestotnik , F. Pham , M. Piccolo , L. E. Piilonen , G. Pinna Angioni , P. L. M. Podesta-Lerma , T. Podobnik , S. Pokharel , G. Polat , V. Popov , C. Praz , S. Prell , E. Prencipe , M. T. Prim , M. V. Purohit , H. Purwar , N. Rad , P. Rados , S. Raiz , S. Reiter , M. Remnev , I. Ripp-Baudot , G. Rizzo , L. B. Rizzuto , S. H. Robertson , J. M. Roney , A. Rostomyan , N. Rout , M. Rozanska , D. Sahoo , D. A. Sanders , S. Sandilya , A. Sangal , L. Santelj , Y. Sato , V. Savinov , B. Scavino , J. Schueler , C. Schwanda , A. J. Schwartz , Y. Seino , A. Selce , K. Senyo , J. Serrano , C. Sfienti , J. -G. Shiu , B. Shwartz , A. Sibidanov , F. Simon , R. J. Sobie , A. Soffer , A. Sokolov , E. Solovieva , S. Spataro , B. Spruck , M. Starič , S. Stefkova , Z. S. Stottler , R. Stroili , J. Strube , M. Sumihama , W. Sutcliffe , S. Y. Suzuki , H. Svidras , M. Tabata , M. Takizawa , U. Tamponi , S. Tanaka , K. Tanida , H. Tanigawa , N. Taniguchi , F. Tenchini , R. Tiwary , D. Tonelli , E. Torassa , N. Toutounji , K. Trabelsi , T. Tsuboyama , I. Ueda , S. Uehara , Y. Uematsu , T. Uglov , K. Unger , Y. Unno , K. Uno , S. Uno , P. Urquijo , Y. Ushiroda , Y. V. Usov , S. E. Vahsen , R. van Tonder , G. S. Varner , A. Vinokurova , L. Vitale , A. Vossen , E. Waheed , H. M. Wakeling , E. Wang , M. -Z. Wang , X. L. Wang , A. Warburton , M. Watanabe , M. Welsch , C. Wessel , J. Wiechczynski , E. Won , X. P. Xu , B. D. Yabsley , S. Yamada , W. Yan , S. B. Yang , H. Ye , J. Yelton , J. H. Yin , K. Yoshihara , Y. Yusa , L. Zani , V. Zhilich , Q. D. Zhou , X. Y. Zhou , V. I. Zhukova , R. Žlebčík

We measure the rate of D0-D0bar mixing with the observable yCP=(tauKpi/tauKK)-1, where tauKK and tauKpi are respectively the mean lifetimes of CP-even D0->K+K- and CP-mixed D0->K-pi+ decays, using a data sample of 384/fb collected by the…

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

The recently obtained strong evidence for $D^0 - \bar D^0$ oscillations from the $B$ factories provides an important benchmark in our search for New Physics in charm transitions. While the theoretical verdict on the observed values of $x_D$…

High Energy Physics - Phenomenology · Physics 2008-11-26 I. I. Bigi

Using a sample of 1.8 million DDbar meson pairs collected at the psi(3770) with the CLEO-c detector, we study the semileptonic decays D^0 -> pi^- e^+ nu_e, D^+ -> pi^0 e^+ \nu_e, D^0 -> K^- e^+ \nu_e, and D^+ -> Kbar^0 e^+ nu_e. For the…

High Energy Physics - Experiment · Physics 2010-04-08 CLEO Collaboration , S. Dobbs

The charm quark has unique properties that make it a very important probe of many facets of the Standard Model. New experimental information on charm decays is becoming available from dedicated experiments at charm factories, and through…

High Energy Physics - Experiment · Physics 2010-11-05 M. Artuso

We exploit the quantum coherence between pair-produced D0 and D0B in psi(3770) decays to make a first determination of the relative strong phase differences between D0--> K0Spi+pi- and D0B--> K0Spi+pi-, which are of great importance in…

High Energy Physics - Experiment · Physics 2010-04-08 The CLEO Collaboration , R. A. Briere

The two-particle momentum correlation functions between charm mesons ($\mathrm{D^{*\pm}}$ and $\mathrm{D}^\pm$) and charged light-flavor mesons ($\pi^{\pm}$ and K$^{\pm}$) in all charge-combinations are measured for the first time by the…

Nuclear Experiment · Physics 2024-10-02 ALICE Collaboration

We report on a measurement of the decay $K_L\rightarrow\mu^+\mu^-\gamma$ from Fermilab experiment E799. We observe $207$ candidate signal events with an estimated background of $10.5 \pm 4.0$ events and establish…

High Energy Physics - Experiment · Physics 2010-04-08 M. B. Spencer et. al

After an introduction on the peculiarities of flavor-physics measurements at a hadron collider, and on the upgraded Collider Detector at Fermilab (CDF II), I show recent results on two-body B0 and B0s decays into charged, pseudo-scalar,…

High Energy Physics - Experiment · Physics 2019-08-14 Diego Tonelli

A high statistics sample of photoproduced charm particles from the FOCUS (E831) experiment at Fermilab has been used to search for CP violation in the Cabibbo suppressed decay modes D+ to K-K+pi+, D0 to K-K+ and D0 to pi-pi+. We have…

High Energy Physics - Experiment · Physics 2012-08-27 The FOCUS collaboration

We provide an overview of RBC/UKQCD's charm project on 2+1 flavour physical pion mass ensembles using M\"obius Domain Wall Fermions for the light as well as for the charm quark. We discuss the analysis strategy in detail and present results…

High Energy Physics - Lattice · Physics 2015-12-01 Peter Boyle , Luigi Del Debbio , Ava Khamseh , Andreas Jüttner , Francesco Sanfilippo , Justus Tobias Tsang

We review the present status of theoretical attempts to calculate the semileptonic charm and bottom decays and then present a calculation of these decays in the light--front frame at the kinematic point $q^2=0$. This allows us to evaluate…

High Energy Physics - Phenomenology · Physics 2010-11-23 Patrick J. O'Donnell , Gursevil Turan

Using a large sample of charm semileptonic decays collected by the FOCUS photoproduction experiment at Fermilab, we present new measurements of two semileptonic branching ratios. We obtain values of D+ to K*munu/k2pi = 0.602 +/- 0.010 +/-…

High Energy Physics - Experiment · Physics 2012-08-27 The Focus Collaboration

The production of wrong sign charmed mesons b -> \bar D_{(s)} X, D_{(s)}=(D0,D+,D_s), is studied using the data collected by the DELPHI experiment in the years 1994 and 1995. Charmed mesons in Z -> b bbar events are exclusively…

High Energy Physics - Experiment · Physics 2008-11-26 The DELPHI Collaboration , J. Abdallah