European Organization for Nuclear Research Measurement of Direct Cp Violation with the Experiment Na48 at Cern
نویسنده
چکیده
Direct CP violation is studied in two pion decays of the neutral kaon. Using data collected in the first beam period in 1997, the result for the parameter Re (ε/ε) is (18.5 ± 4.5(stat) ± 5.8(syst))× 10−4. Talk presented at the EPS–HEP 99 Conference Tampere, Finland, July 15–21, 1999 a) On behalf of the NA48 Collaboration: Cagliari, Cambridge, CERN, Dubna, Edinburgh, Ferrara, Firenze, Mainz, Orsay, Perugia, Pisa, Saclay, Siegen, Torino, Vienna, Warsaw. b) Permanent address: INFN, sez. Torino, 10125 Torino, Italy.
منابع مشابه
Measurement of Direct Cp Violation by Na48
The NA48 experiment at the CERN SPS aims to search for direct CP /violation in the K system through the measurement of Re(ε/ε) with high accuracy. In 1999 the NA48 collaboration has published its first measurement based on 1997 data. The final result based on 1998 and 1999 data is presented in this article. The result, combined with 1997 data, Re(ε/ε) = (15.3 ± 2.6) × 10, definitely established...
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