Lees, J. P. and Chao, D. S. and Cheng, C. H. and Doll, D. A. and Echenard, B. and Flood, K. T. and Hitlin, D. G. and Ongmongkolkul, P. and Porter, F. C. and Rakitin, A. Y. (2012) Cross sections for the reactions e^+e^- → K^+K^-π^+π^-,K^+K^-π^0π^0, and K^+K^-K^+K^- measured using initial-state radiation events. Physical Review D, 86 (1). Art. No. 012008. ISSN 2470-0010. doi:10.1103/PhysRevD.86.012008. https://resolver.caltech.edu/CaltechAUTHORS:20120913-070915324
![]()
|
PDF
- Published Version
See Usage Policy. 2MB |
Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20120913-070915324
Abstract
We study the processes e^+e^- → K^+K^-π^+π^-γ, K^+K^-π^0π^0 γ, and K^+K^-K^+K^- γ, where the photon is radiated from the initial state. About 84 000, 8000, and 4200 fully reconstructed events, respectively, are selected from 454 fb^(-1) of BABAR data. The invariant mass of the hadronic final state defines the e+e- center-of-mass energy, so that the K^+K^-π^+π^- γ data can be compared with direct measurements of the e^+e^- → K^+K^-π^+π^- reaction. No direct measurements exist for the e^+e^- → K^+K^-π^0π^0 or e^+e^- → K^+K^-K^+K^- reactions, and we present an update of our previous result based on a data sample that is twice as large. Studying the structure of these events, we find contributions from a number of intermediate states and extract their cross sections. In particular, we perform a more detailed study of the e^+e^- → ϕ(1020)ππγ reaction and confirm the presence of the Y(2175) resonance in the ϕ(1020)f_0(980) and K^+K^-f_0(980) modes. In the charmonium region, we observe the J/ψ in all three final states and in several intermediate states, as well as the ψ(2S) in some modes, and measure the corresponding products of branching fraction and electron width.
Item Type: | Article | ||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Related URLs: |
| ||||||||||||||||||||||||||||||||||
ORCID: |
| ||||||||||||||||||||||||||||||||||
Additional Information: | © 2012 American Physical Society. Received 15 March 2011; published 26 July 2012. We are grateful for the extraordinary contributions of our PEP-II colleagues in achieving the excellent luminosity and machine conditions that have made this work possible. The success of this project also relies critically on the expertise and dedication of the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and the kind hospitality extended to them. This work is supported by the U.S. Department of Energy and National Science Foundation, the Natural Sciences and Engineering Research Council (Canada), the Commissariat à l’Energie Atomique and Institut National de Physique Nucléaire et de Physique des Particules (France), the Bundesministerium für Bildung und Forschung and Deutsche Forschungsgemeinschaft (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), the Foundation for Fundamental Research on Matter (Netherlands), the Research Council of Norway, the Ministry of Education and Science of the Russian Federation, Ministerio de Ciencia e Innovaciόn (Spain), and the Science and Technology Facilities Council (United Kingdom). Individuals have received support from the Marie-Curie IEF program (European Union), the A. P. Sloan Foundation (USA), and the Binational Science Foundation (USA-Israel). | ||||||||||||||||||||||||||||||||||
Funders: |
| ||||||||||||||||||||||||||||||||||
Issue or Number: | 1 | ||||||||||||||||||||||||||||||||||
Classification Code: | PACS: 13.66.Bc, 13.25.Gv, 13.25.Jx, 14.40.-n | ||||||||||||||||||||||||||||||||||
DOI: | 10.1103/PhysRevD.86.012008 | ||||||||||||||||||||||||||||||||||
Record Number: | CaltechAUTHORS:20120913-070915324 | ||||||||||||||||||||||||||||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20120913-070915324 | ||||||||||||||||||||||||||||||||||
Official Citation: | Cross sections for the reactions e+e-→K+K-π+π-, K+K-π0π0, and K+K-K+K- measured using initial-state radiation events J. P. Lees et al. (BABAR Collaboration) Published 26 July 2012 (34 pages) 012008 | ||||||||||||||||||||||||||||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||||||||||||||||||
ID Code: | 34048 | ||||||||||||||||||||||||||||||||||
Collection: | CaltechAUTHORS | ||||||||||||||||||||||||||||||||||
Deposited By: | Ruth Sustaita | ||||||||||||||||||||||||||||||||||
Deposited On: | 13 Sep 2012 14:44 | ||||||||||||||||||||||||||||||||||
Last Modified: | 09 Nov 2021 23:06 |
Repository Staff Only: item control page