SEARCH FOR EXOTIC EFFECTS IN eta MESON LEPTONIC DECAYS
2011 (English)In: International Journal of Modern Physics A, ISSN 0217-751X, E-ISSN 1793-656X, Vol. 26, no 3-4, 630-631 p.Article in journal (Refereed) Published
The search for the decay eta -> e(+)e(-) was carried out using the WASA detector at the COSY storage ring. Data were taken during a two week experimental run in Sept-Nov 2008 in which about 10(7) eta mesons were collected from the reaction of pp -> pp eta at energy of 1.4 GeV. Background studies were performed for several different reactions. The performance of the WASA detector for the measurement of electron-positron pairs based on the single Dalitz decay of the eta meson was studied. We also identified a statistically significant data sample of other more frequent leptonic decays.
Place, publisher, year, edition, pages
2011. Vol. 26, no 3-4, 630-631 p.
IdentifiersURN: urn:nbn:se:uu:diva-171014DOI: 10.1142/S0217751X11052268ISI: 000287529800065OAI: oai:DiVA.org:uu-171014DiVA: diva2:510042
WASA at COSY collaboration2012-03-142012-03-142014-02-11