Precision measurement of [script B](D⁺-->µ⁺nu) and the pseudoscalar decay constant f_D⁺

Abstract

References (38)

Citing Articles

Download: PDF (766 kB) or Buy this Article (US$25) (Use Article Pack)

B. I. Eisenstein,¹ I. Karliner,¹ S. Mehrabyan,¹ N. Lowrey,¹ M. Selen,¹ E. J. White,¹ J. Wiss,¹ R. E. Mitchell,² M. R. Shepherd,² D. Besson,³ T. K. Pedlar,⁴ D. Cronin-Hennessy,⁵ K. Y. Gao,⁵ J. Hietala,⁵ Y. Kubota,⁵ T. Klein,⁵ B. W. Lang,⁵ R. Poling,⁵ A. W. Scott,⁵ P. Zweber,⁵ S. Dobbs,⁶ Z. Metreveli,⁶ K. K. Seth,⁶ A. Tomaradze,⁶ J. Libby,⁷ L. Martin,⁷ A. Powell,⁷ G. Wilkinson,⁷ K. M. Ecklund,⁸ W. Love,⁹ V. Savinov,⁹ H. Mendez,¹⁰ J. Y. Ge,¹¹ D. H. Miller,¹¹ I. P. J. Shipsey,¹¹ B. Xin,¹¹ G. S. Adams,¹² M. Anderson,¹² J. P. Cummings,¹² I. Danko,¹² D. Hu,¹² B. Moziak,¹² J. Napolitano,¹² Q. He,¹³ J. Insler,¹³ H. Muramatsu,¹³ C. S. Park,¹³ E. H. Thorndike,¹³ F. Yang,¹³ M. Artuso,¹⁴ S. Blusk,¹⁴ S. Khalil,¹⁴ J. Li,¹⁴ N. Menaa,¹⁴ R. Mountain,¹⁴ S. Nisar,¹⁴ K. Randrianarivony,¹⁴ N. Sultana,¹⁴ T. Skwarnicki,¹⁴ S. Stone,¹⁴ J. C. Wang,¹⁴ L. M. Zhang,¹⁴ G. Bonvicini,¹⁵ D. Cinabro,¹⁵ M. Dubrovin,¹⁵ A. Lincoln,¹⁵ P. Naik,¹⁶ J. Rademacker,¹⁶ D. M. Asner,¹⁷ K. W. Edwards,¹⁷ J. Reed,¹⁷ R. A. Briere,¹⁸ T. Ferguson,¹⁸ G. Tatishvili,¹⁸ H. Vogel,¹⁸ M. E. Watkins,¹⁸ J. L. Rosner,¹⁹ J. P. Alexander,²⁰ D. G. Cassel,²⁰ J. E. Duboscq,²⁰ R. Ehrlich,²⁰ L. Fields,²⁰ R. S. Galik,²⁰ L. Gibbons,²⁰ R. Gray,²⁰ S. W. Gray,²⁰ D. L. Hartill,²⁰ B. K. Heltsley,²⁰ D. Hertz,²⁰ J. M. Hunt,²⁰ J. Kandaswamy,²⁰ D. L. Kreinick,²⁰ V. E. Kuznetsov,²⁰ J. Ledoux,²⁰ H. Mahlke-Krüger,²⁰ D. Mohapatra,²⁰ P. U. E. Onyisi,²⁰ J. R. Patterson,²⁰ D. Peterson,²⁰ D. Riley,²⁰ A. Ryd,²⁰ A. J. Sadoff,²⁰ X. Shi,²⁰ S. Stroiney,²⁰ W. M. Sun,²⁰ T. Wilksen,²⁰ S. B. Athar,²¹ R. Patel,²¹ J. Yelton,²¹ and P. Rubin²²

(CLEO Collaboration)

¹University of Illinois, Urbana-Champaign, Illinois 61801, USA
²Indiana University, Bloomington, Indiana 47405, USA
³University of Kansas, Lawrence, Kansas 66045, USA
⁴Luther College, Decorah, Iowa 52101, USA
⁵University of Minnesota, Minneapolis, Minnesota 55455, USA
⁶Northwestern University, Evanston, Illinois 60208, USA
⁷University of Oxford, Oxford OX1 3RH, United Kingdom
⁸State University of New York at Buffalo, Buffalo, New York 14260, USA
⁹University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
¹⁰University of Puerto Rico, Mayaguez, Puerto Rico 00681
¹¹Purdue University, West Lafayette, Indiana 47907, USA
¹²Rensselaer Polytechnic Institute, Troy, New York 12180, USA
¹³University of Rochester, Rochester, New York 14627, USA
¹⁴Syracuse University, Syracuse, New York 13244, USA
¹⁵Wayne State University, Detroit, Michigan 48202, USA
¹⁶University of Bristol, Bristol BS8 1TL, United Kingdom
¹⁷Carleton University, Ottawa, Ontario, Canada K1S 5B6
¹⁸Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
¹⁹Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
²⁰Cornell University, Ithaca, New York 14853, USA
²¹University of Florida, Gainesville, Florida 32611, USA
²²George Mason University, Fairfax, Virginia 22030, USA

Received 12 June 2008; published 11 September 2008

Wemeasure the branching ratio of the purely leptonic decay ofthe D⁺ meson with unprecedented precision as [script B](D⁺-->µ⁺nu)=(3.82±0.32±0.09)×10^-4, using 818 pb^-1of data taken on the psi(3770) resonance with the CLEO-cdetector at the CESR collider. We use this determination toderive a value for the pseudoscalar decay constant f_D⁺, combiningwith measurements of the D⁺ lifetime and assuming |V_cd|=|V_us|. Wefind f_D⁺=(205.8±8.5±2.5) MeV. The decay rate asymmetry ((Gamma(D[sup +] --> mu[sup +] nu)-Gamma(D[sup -] --> mu[sup -][overline nu ]))/(Gamma(D[sup +] --> mu[sup +] nu) + Gamma(D[sup -] --> mu[sup -][overline nu ])))=0.08±0.08, consistent with noCP violation. We also set 90% confidence level upper limitson [script B](D⁺-->tau⁺nu)<1.2×10^-3 and [script B](D⁺-->e⁺nu)<8.8×10^-6.

URL:	http://link.aps.org/doi/10.1103/PhysRevD.78.052003
DOI:	10.1103/PhysRevD.78.052003
PACS:	13.20.Fc; 12.38.Qk; 14.40.Lb 13.20.Fc Leptonic/semileptonic/radiative decays of charmed mesons 12.38.Qk Experimental tests of QCD 14.40.Lb Charmed mesons YEAR: 2008

REFERENCES (38)

View in Separate Window/Tab

For access to fully linked references, you need to log in. For access to fully linked references, you need to Log in.

D. Silverman and H. Yao, Phys. Rev. D 38, 214 (1988).
E. Follana et al. (HPQCD and UKQCD Collaborations), Phys. Rev. Lett. 100, 062002 (2008).
B. A. Dobrescu and A. S. Kronfeld, Phys. Rev. Lett. 100, 241802 (2008).
C. Aubin et al. (FNAL Lattice, HPQCD, MILC), and Phys. Rev. Lett. 95, 122002 (2005).
L. Lellouch and C.-J. Lin (UKQCD), Phys. Rev. D 64, 094501 (2001).
D. Becirevic et al., Phys. Rev. D 60, 074501 (1999).
A. M. Badalian et al., Phys. Rev. D 75, 116001 (2007);
A. Penin and M. Steinhauser, Phys. Rev. D 65, 054006 (2002).
J. Amundson et al., Phys. Rev. D 47, 3059 (1993).
M. Artuso et al. (CLEO), Phys. Rev. Lett. 95, 251801 (2005);

Phys. Rev. D 70, 112004 (2004)

P. Rubin et al. (CLEO), Phys. Rev. D 73, 112005 (2006).
T. K. Pedlar et al. (CLEO), Phys. Rev. D 76, 072002 (2007).
K. Arms et al. (CLEO), Phys. Rev. D 69, 071102 (2004).
S. Dobbs et al. (CLEO), Phys. Rev. D 76, 112001 (2007).
G. Burdman, J. T. Goldman, and D. Wyler, Phys. Rev. D 51, 111 (1995).
J. Adler et al. (Mark III), Phys. Rev. Lett. 60, 1375 (1988);

63, 1658(E) (1989)

R. Zwicky, Phys. Rev. D 77, 036004 (2008).

CITING ARTICLES

For access to citing articles, you need to log in.

For access to citing articles, you need to Log in.

APS » Phys. Rev. D » Volume 78 » Issue 5

< Previous Article Next Article >

A new free weekly publication from APS

Please visit physics.aps.org

Article Tools

View Cart	Download Citation
MyScitation	Print View

Article Lookup:

Phys. Rev. D 78, 052003 (2008) [13 pages]

Precision measurement of [script B](D+-->µ+nu) and the pseudoscalar decay constant fD+

REFERENCES (38)

CITING ARTICLES

A new free weekly publication from APS

Precision measurement of [script B](D⁺-->µ⁺nu) and the pseudoscalar decay constant f_D⁺