| Autor: |
A.N. Ivanov, R. Höllwieser, N.I. Troitskaya, M. Wellenzohn, Ya.A. Berdnikov |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
Nuclear Physics B, Vol 951, Iss , Pp - (2020) |
| Druh dokumentu: |
article |
| ISSN: |
0550-3213 |
| DOI: |
10.1016/j.nuclphysb.2019.114891 |
| Popis: |
We analyze the contributions of the one–pion–pole (OPP) exchange, caused by strong low–energy interactions, and the pseudoscalar interaction beyond the Standard Model (BSM) to the correlation coefficients of the neutron β−–decays for polarized neutrons, polarized electrons and unpolarized protons. The strength of contributions of pseudoscalar interactions is defined by the effective coupling constant Cps=Cps(OPP)+Cps(BSM). We show that the contribution of the OPP exchange is of order Cps(OPP)∼−10−5. The effective coupling constant Cps(BSM) of the pseudoscalar interaction BSM can be in principle complex. Using the results, obtained by González-Alonso et al. (2019) [34] we find that the values of the real and imaginary parts of the effective coupling constant Cps(BSM) are constrained by −3.5×10−5 |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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