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Direct measurement of B(D_s^+ → φX^+)

Bai, J. Z. and Hitlin, D. G. and Jones, L. and Kelsey, M. H. and Oyang, J. and Panetta, J. and Porter, F. and Prabhakar, E. and Weaver, M. (1998) Direct measurement of B(D_s^+ → φX^+). Physical Review D, 57 (1). pp. 28-32. ISSN 0556-2821. http://resolver.caltech.edu/CaltechAUTHORS:20120117-125010776

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Abstract

The absolute inclusive branching fraction of D_s^+→φX^+ has been measured from data collected by the BES detector at a center-of-mass energy of 4.03 GeV, corresponding to an integrated luminosity of 22.3 pb^(-1). At this energy, direct pair production e^+e^-→D_s^+D_s^- has been observed. We have selected D_s candidate events by reconstructing five hadronic decay modes D_s^+→φπ^+, K^(0*)K^+, K^0K^+, f0^(π+) and K^0K^-π^+π^+ and have searched for inclusive φ’s in the recoiling D_s^-. We observed three recoiling φ’s in the 166.4 ± 31.8 D_s candidate events, which leads to the absolute branching fraction B(D_s^+→φX^+)=(17.8(-7.2 -6.3)^(+15.1+0.6)) % and B(D_s-6.3+→φπ-6.3+)=(3.6_(-1.6 -1.3)(^_3.1+0.4) %. [S0556-2821(97)02423-5]


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevD.57.28DOIUNSPECIFIED
http://link.aps.org/doi/10.1103/PhysRevD.57.28PublisherUNSPECIFIED
http://prd.aps.org/abstract/PRD/v57/i1/p28_1PublisherUNSPECIFIED
Additional Information:© 1997 The American Physical Society. Received 21 July 1997; published 4 December 1997. We would like to thank the staffs of the BEPC accelerator and the Computing Center at the Institute of High Energy Physics (Beijing). This work was supported in part by the National Natural Science Foundation of China under Contract No. 19290400 and the Chinese Academy of Sciences under Contract No. KJ85 (IHEP); by the Department of Energy under Contract Nos. DE-FG03-92ER40701 (Caltech), DE-FG03-93ER40788 (Colorado State University), DEAC02- 76ER03069 (MIT), DE-AC03-76SF00515 (SLAC), DE-FG03-91ER40679 (UC Irvine), DE-FG03-94ER40833 (University of Hawaii), DE-FG03-95ER40925 (UT Dallas); by the U.S. National Science Foundation, Grant No. PHY9203212 (University of Washington).
Funders:
Funding AgencyGrant Number
National Natural Science Foundation of China19290400
Chinese Academy of SciencesKJ85
Department of Energy (DOE)/Caltech DE-FG03-92ER40701
Department of Energy (DOE)/Colorado State UniversityDE-FG03-93ER40788
Department of Energy (DOE)/MITDEAC02- 76ER03069
Department of Energy (DOE)/SLACDE-AC03-76SF00515
Department of Energy (DOE)/UC IrvineDE-FG03-91ER40679
Department of Energy (DOE)/University of HawaiiDE-FG03-94ER40833
Department of Energy (DOE)/UT DallasDE-FG03-95ER40925
NSFPHY9203212
Classification Code:PACS: 13.25.Ft, 14.40.Lb, 13.25.Ft, 14.40.Lb
Record Number:CaltechAUTHORS:20120117-125010776
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20120117-125010776
Official Citation:Direct measurement of B(Ds+→φX+) J. Z. Bai et al. ((BES Collaboration)) pp. 28-32
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:28809
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:17 Jan 2012 21:40
Last Modified:26 Dec 2012 14:42

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