التفاصيل البيبلوغرافية
| العنوان: |
Search for a feebly interacting particle X in the decay K+ → π+X. |
| المؤلفون: |
Cortina Gil, E., Kleimenova, A., Minucci, E., Padolski, S., Petrov, P., Shaikhiev, A., Volpe, R., Numao, T., Velghe, B., Bryman, D., Fu, J., Husek, T., Jerhot, J., Kampf, K., Zamkovsky, M., Aliberti, R., Khoriauli, G., Kunze, J., Lomidze, D., Marchevski, R. |
| المصدر: |
Journal of High Energy Physics; Mar2021, Vol. 2021 Issue 3, p1-17, 17p |
| مصطلحات موضوعية: |
PARTICLE decays, BRANCHING ratios, MAGNITUDE (Mathematics), DATA analysis |
| الشركة/الكيان: |
EUROPEAN Organization for Nuclear Research |
| مستخلص: |
A search for the K+ → π+X decay, where X is a long-lived feebly interacting particle, is performed through an interpretation of the K+ → π + ν ν ¯ analysis of data collected in 2017 by the NA62 experiment at CERN. Two ranges of X masses, 0–110 MeV/c2 and 154–260 MeV/c2, and lifetimes above 100 ps are considered. The limits set on the branching ratio, BR(K+ → π+X), are competitive with previously reported searches in the first mass range, and improve on current limits in the second mass range by more than an order of magnitude. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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