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Observation of D_s^+ → K^0K^+ and D_s^+ → K^(*0)K^+ and an Upper Limit on D_s^+ → K^0π^+

Adler, J. and Coffman, D. and DeJongh, F. and Dubois, G. P. and Eigen, G. and Hauser, J. and Hitlin, D. G. and Matthews, C. G. and Mincer, A. I. and Richman, J. D. and Wisniewski, W. J. and Zhu, Y. and Weinstein, Alan J. (1989) Observation of D_s^+ → K^0K^+ and D_s^+ → K^(*0)K^+ and an Upper Limit on D_s^+ → K^0π^+. Physical Review Letters, 63 (12). pp. 1211-1214. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:20120531-104951870

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Abstract

We report the first observation of the decay D_s^+ → K^0K^+ and a new measurement of the decay D_s^+→K (892)^0K^+. The data were collected at √s=4.14 GeV with the Mark III detector at the SLAC e^+e^- storage ring at SPEAR. We obtain the relative branching fractions B(D^+_s→K^0K^+/ B(D_s^+→φπ^+)=0.92±0.32±0.20 and B(D_s^+→K^*0K^+)/ B(D_s^+→φπ^+)=0.84±0.30±0.22, using our new determination of σB(D_s^+→φπ^+). A search for the Cabibbo-suppressed decay D^+_s→K^0π^+ yields a limit B(D_s^+→K^0π^+)/B(D_s^+→φπ^+)<0.21 at the 90% confidence level.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevLett.63.1211DOIUNSPECIFIED
http://link.aps.org/doi/10.1103/PhysRevLett.63.1211PublisherUNSPECIFIED
http://prl.aps.org/abstract/PRL/v63/i12/p1211_1PublisherUNSPECIFIED
ORCID:
AuthorORCID
Weinstein, Alan J.0000-0002-0928-6784
Additional Information:© 1989 The American Physical Society. Received 17 May 1989; published in the issue dated 18 September 1989. We gratefully acknowledge the dedicated efforts of the SPEAR staff. One of us (G.E.) wishes to thank the A. von Humboldt Foundation for support. This work was supported by the Department of Energy, under Contracts No. DE-AC03-76SF00515, No. DE-AC02-76ER01195, No. DE-AC03-81ER40050, No. DE-AC02-87ER40318, No. DE-AM03-76SF00034, and by the National Science Foundation.
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-AC03-76SF00515
Department of Energy (DOE)DE-AC02-76ER01195
Department of Energy (DOE)DE-AC03-81ER40050
Department of Energy (DOE)DE-AC02-87ER40318
Department of Energy (DOE)DE-AM03-76SF00034
NSFUNSPECIFIED
Classification Code:PACS: 13.25.+m, 14.40.Jz
Record Number:CaltechAUTHORS:20120531-104951870
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20120531-104951870
Official Citation:Observation of D_s^+ → K^0K^+ and D_s^+ → K^(*0)K^+ and an Upper Limit on D_s^+ → K^0π^+ J. Adler et al. pp. 1211-1214
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:31745
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:31 May 2012 18:43
Last Modified:22 Jul 2013 23:12

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