Электронный каталог

Статья

Dima, M.-T.
Simulation of Helicity Based Background Reduction at NA-62 / M.-T.Dima, M.Dima, M.Mihailescu // Физика элементарных частиц и атомного ядра. Письма. – 2023. – Т.20, №5. – P.1317. – URL: http://www1.jinr.ru/Pepan_letters/panl_2023_5/53_Dima_ann.pdf.

NA-62 is a CERN fixed-target experiment upgraded from the NA-48 detector at the Super Proton Synchroton. The main scope of application for NA-62 is the study of the ultra-rare kaon decays in a higher luminosity context than in the E-949 experiment. The K+ → π+ν ¯ν decay is studied, given its few-percent branching ratio theoretical uncertainty. From experimental perspective, m2 νν mass cuts and particle-ID show promise for clean signal selection, however, as an orthogonal selection criterion, helicity distribution offers an additional advantage.



ОИЯИ = ОИЯИ (JINR)2023
Спец.(статьи,препринты) = С 344.1 - Методы и аппаратура для регистрации элементарных частиц и фотонов$
Спец.(статьи,препринты) = С 346.5б - Свойства К-мезонов: масса, спин, четность, схемы и времена распадов