APS » Phys. Rev. Lett. » Volume 96 » Issue 8

P. Rubin,¹ C. Cawlfield,² B. I. Eisenstein,² I. Karliner,² D. Kim,² N. Lowrey,² P. Naik,² C. Sedlack,² M. Selen,² E. J. White,² J. Wiss,² M. R. Shepherd,³ D. Besson,⁴ T. K. Pedlar,⁵ D. Cronin-Hennessy,⁶ K. Y. Gao,⁶ D. T. Gong,⁶ J. Hietala,⁶ Y. Kubota,⁶ T. Klein,⁶ B. W. Lang,⁶ R. Poling,⁶ A. W. Scott,⁶ A. Smith,⁶ S. Dobbs,⁷ Z. Metreveli,⁷ K. K. Seth,⁷ A. Tomaradze,⁷ P. Zweber,⁷ J. Ernst,⁸ H. Severini,⁹ S. A. Dytman,¹⁰ W. Love,¹⁰ S. Mehrabyan,¹⁰ V. Savinov,¹⁰ O. Aquines,¹¹ Z. Li,¹¹ A. Lopez,¹¹ H. Mendez,¹¹ J. Ramirez,¹¹ B. Xin,¹² G. S. Huang,¹² D. H. Miller,¹² V. Pavlunin,¹² B. Sanghi,¹² I. P. J. Shipsey,¹² G. S. Adams,¹³ M. Anderson,¹³ J. P. Cummings,¹³ I. Danko,¹³ J. Napolitano,¹³ Q. He,¹⁴ J. Insler,¹⁴ H. Muramatsu,¹⁴ C. S. Park,¹⁴ E. H. Thorndike,¹⁴ T. E. Coan,¹⁵ Y. S. Gao,¹⁵ F. Liu,¹⁵ R. Stroynowski,¹⁵ M. Artuso,¹⁶ S. Blusk,¹⁶ J. Butt,¹⁶ J. Li,¹⁶ N. Menaa,¹⁶ R. Mountain,¹⁶ S. Nisar,¹⁶ K. Randrianarivony,¹⁶ R. Redjimi,¹⁶ R. Sia,¹⁶ T. Skwarnicki,¹⁶ S. Stone,¹⁶ J. C. Wang,¹⁶ K. Zhang,¹⁶ S. E. Csorna,¹⁷ G. Bonvicini,¹⁸ D. Cinabro,¹⁸ M. Dubrovin,¹⁸ A. Lincoln,¹⁸ D. M. Asner,¹⁹ K. W. Edwards,¹⁹ R. A. Briere,²⁰ I. Brock,²⁰ J. Chen,²⁰ T. Ferguson,²⁰ G. Tatishvili,²⁰ H. Vogel,²⁰ M. E. Watkins,²⁰ J. L. Rosner,²¹ N. E. Adam,²² J. P. Alexander,²² K. Berkelman,²² D. G. Cassel,²² J. E. Duboscq,²² K. M. Ecklund,²² R. Ehrlich,²² L. Fields,²² L. Gibbons,²² R. Gray,²² S. W. Gray,²² D. L. Hartill,²² B. K. Heltsley,²² D. Hertz,²² C. D. Jones,²² J. Kandaswamy,²² D. L. Kreinick,²² V. E. Kuznetsov,²² H. Mahlke-Krüger,²² T. O. Meyer,²² P. U. E. Onyisi,²² J. R. Patterson,²² D. Peterson,²² E. A. Phillips,²² J. Pivarski,²² D. Riley,²² A. Ryd,²² A. J. Sadoff,²² H. Schwarthoff,²² X. Shi,²² S. Stroiney,²² W. M. Sun,²² T. Wilksen,²² M. Weinberger,²² S. B. Athar,²³ P. Avery,²³ L. Breva-Newell,²³ R. Patel,²³ V. Potlia,²³ H. Stoeck,²³ and J. Yelton²³

(CLEO Collaboration)

¹George Mason University, Fairfax, Virginia 22030, USA
²University of Illinois, Urbana-Champaign, Illinois 61801, USA
³Indiana University, Bloomington, Indiana 47405, USA
⁴University of Kansas, Lawrence, Kansas 66045, USA
⁵Luther College, Decorah, Iowa 52101, USA
⁶University of Minnesota, Minneapolis, Minnesota 55455, USA
⁷Northwestern University, Evanston, Illinois 60208, USA
⁸State University of New York at Albany, Albany, New York 12222, USA
⁹University of Oklahoma, Norman, Oklahoma 73019, USA
¹⁰University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
¹¹University of Puerto Rico, Mayaguez, Puerto Rico 00681
¹²Purdue University, West Lafayette, Indiana 47907, USA
¹³Rensselaer Polytechnic Institute, Troy, New York 12180, USA
¹⁴University of Rochester, Rochester, New York 14627, USA
¹⁵Southern Methodist University, Dallas, Texas 75275, USA
¹⁶Syracuse University, Syracuse, New York 13244, USA
¹⁷Vanderbilt University, Nashville, Tennessee 37235, USA
¹⁸Wayne State University, Detroit, Michigan 48202, USA
¹⁹Carleton University, Ottawa, Ontario, Canada K1S 5B6
²⁰Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
²¹Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
²²Cornell University, Ithaca, New York 14853, USA
²³University of Florida, Gainesville, Florida 32611, USA

Using 281 pb^-1 of data collected with the CLEO-c detector, we report on first observations and measurements of Cabibbo-suppressed decays of D mesons in the following six decay modes: ^+-00, ^++--0, ⁺⁰⁰, ^++-0, ⁰, and ^+-. Improved branching fraction measurements in eight other multipion decay modes are also presented. The measured D rates allow us to extract the ratio of isospin amplitudes A(I=3/2)/A(I=1/2)=0.420±0.014(stat)±0.016(syst) and the strong phase shift of _I=(86.4±2.8±3.3)°, which is quite large and now more precisely determined.

©2006 The American Physical Society

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