Электронный каталог

Статья

Ablikim, M.
Search for *DS=2 Nonleptonic Hyperon Decays *W*- *> *S*0*p*- and *W*- *> nK*- / M.Ablikim, O.Bakina, I.Boyko, G.Chelkov, D.Dedovich, I.Denysenko, P.Egorov, A.Guskov, Y.Nefedov, A.Sarantsev, A.Zhemchugov, [a.o.] // Journal of High Energy Physics [Electronic resource]. – 2024. – Vol. 2024, No. 5. – P. 141. – URL: https://doi.org/10.1007/JHEP05(2024)141. – Bibliogr.: 35.

In the Standard Model (SM), nonleptonic hyperon decays involving a change in strangeness by two units (∆S = 2) are highly suppressed. The branching fractions (BFs) of these decays in the SM are at the level of 10−17–10−12 [ 1], which is far below the existing experimental limits. Currently, there are only two ∆S = 2 processes observed, K0 − ¯K0 mixing and Bs − ¯Bs mixing. The ∆S = 2 nonleptonic hyperon decays may serve as probes of new physics [ 1 –3 ], where the BFs could be enhanced to the level of 10−10–10−7 when beyond the SM effects are considered [ 1 ]. Though these BFs may still be beyond current experimental sensitivity, it is still worthwhile to search for these decays.



ОИЯИ = ОИЯИ (JINR)2024
Спец.(статьи,препринты) = С 332.7 - Встречные е+е- и мю+мю- пучки