Published October 1, 1995
| Published
Journal Article
Open
Direct measurement of the D_s branching fraction to φπ
Abstract
The Beijing Spectrometer (BES) Collaboration has observed exclusive pair production of D_s mesons at the Beijing Electron-Positron Collider (BEPC) at a center-of-mass energy of 4.03 GeV. The D_s mesons are detected in the φπ^+, K¯^(*0)K^+, and K¯^0K^+ decay modes; two fully reconstructed events yield the value (3.9_(-1.9-1.1)^(+5.1+1.8))% for the D_s branching fraction to φπ. This is the first direct, model-independent measurement of this quantity.
Additional Information
© 1995 The American Physical Society. Received 28 April 1995; published in the issue dated 1 October 1995. We gratefully acknowledge the dedicated efforts of the BEPC staff, the Institute of High Energy Physics Computing Center, and the Texas High Performance Computing Center (formerly the Physics Detector Simulation Facility). We thank Professor Chaohsi Chang for useful discussions of D. physics. 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-FG02-91ER40676 (Boston University), DE-FG03-92ER40701 (Caltech), DE-FG03-93ER40788 (Colorado State University), DE-AC02-76ER03069 (MIT), DEAC03-76SF00515 (SLAC), DE-FG03-91ER40679 (UC Irvine), DE-FG03-94ER40833 (U Hawaii), DE-FG05-92ER40736 (UT Dallas), DE-AC35-89ER40486 (SSC Lab), by the U.S. National Science Foundation, Grant No. PHY9203212 (University of Washington), and by the Texas National Research Laboratory Commission under Contract Nos. RGFY91B5, RGFY92B5 (Colorado State), and RCFY93-316H (UT Dallas).Attached Files
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Additional details
- Eprint ID
- 29311
- Resolver ID
- CaltechAUTHORS:20120215-143117818
- 19290400
- National Natural Science Foundation of China
- KJ85
- Chinese Academy of Sciences
- DE-FG02-91ER40676
- Department of Energy (DOE)
- DE-FG03-92ER40701
- Department of Energy (DOE)
- DE-FG03-93ER40788
- Department of Energy (DOE)
- DE-AC02-76ER03069
- Department of Energy (DOE)
- DEAC03-76SF00515
- Department of Energy (DOE)
- DE-FG03-91ER40679
- Department of Energy (DOE)
- DE-FG03-94ER40833
- Department of Energy (DOE)
- DE-FG05-92ER40736
- Department of Energy (DOE)
- DE-AC35-89ER40486
- Department of Energy (DOE)
- PHY9203212
- NSF
- RGFY91B5
- Texas National Research Laboratory Commission
- RGFY92B5
- Texas National Research Laboratory Commission
- RCFY93-316H
- Texas National Research Laboratory Commission
- Created
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2012-02-15Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field