| Autor: |
Achasov, M., Barnyakov, A., Beloborodov, K., Berdyugin, A., Bogdanchikov, A., Botov, A., Dimova, T., Druzhinin, V., Golubev, V., Kardapoltsev, L., Kharlamov, A., Koop, I., Korneev, L., Korol, A., Koshuba, S., Kovrizhin, D., Kupich, A., Lysenko, A., Martin, K., Muchnoi, N. |
| Předmět: |
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| Zdroj: |
JETP Letters; Sep2015, Vol. 102 Issue 5, p266-270, 5p |
| Abstrakt: |
The sensitivity of the VEPP-2000 e e collider in the search for the rare decay η → e e has been studied. The inverse reaction e e → η is proposed for this search. We have analyzed a data sample with an integrated luminosity of 108 nb collected with the SND detector in the center-of-mass energy range 520-580 MeV and found no background events for the reaction e e → η in the decay mode η → πππ. In the absence of background, a sensitivity to B(η → e e) of 10 can be reached during two weeks of VEPP-2000 operation. Such a sensitivity is higher than the current upper limit on B(η → e e) by a factor of 2.3. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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