1. Measurement of the isospin-filtering dd -> 4He K+ K- reaction at Q=39 MeV
- Author
-
Yuan, X., Buescher, M., Chiladze, D., Dymov, S., Dzyuba, A., Grishina, V. Yu., Hanhart, C., Hartmann, M., Kacharava, A., Khoukaz, A., Kondratyuk, L. A., Koptev, V., Kulessa, P., Mielke, M., Mikirtychiants, S., Nekipelov, M., Papenbrock, M., Pysz, K., Serdyuk, V., Stroeher, H., Wilkin, C., and Xu, H.
- Subjects
Nuclear Experiment ,Nuclear Theory - Abstract
The total cross section for the dd -> 4He K+ K- reaction has been measured at a beam momentum of 3.7 GeV/c, corresponding to an excess energy of 39 MeV, which is the maximum possible at the Cooler Synchrotron COSY-J\"{u}lich. A deuterium cluster-jet target and the ANKE forward magnetic spectrometer, placed inside the storage ring, have been employed in this investigation. We find a total cross section of sigma(tot) < 14 pb, which brings into question the viability of investigating the dd -> 4He a0(980) reaction as a means of studying isospin violation., Comment: Five pages with three eps figures
- Published
- 2009
- Full Text
- View/download PDF