Dark-sector physics in the search for the rare decays $$K^+\rightarrow \pi ^+ \nu {\bar{\nu }}$$ and $$K_L\rightarrow \pi ^0 \nu {\bar{\nu }}$$
نویسندگان
چکیده
منابع مشابه
Study of the semileptonic charm decays D(0)-->pi(-)l(+)nu and D(0)-->K(-)l(+)nu.
We investigate the decays D(0)-->pi(-)l(+)nu and D(0)-->K(-)l(+)nu, where l is e or mu, using approximately 7 fb(-1) of data collected with the CLEO III detector. We find R(0) identical with B(D(0)-->pi(-)e(+)nu)/B(D(0)-->K(-)e(+)nu)=0.082+/-0.006+/-0.005. Fits to the kinematic distributions of the data provide parameters describing the form factor of each mode. Combining the form factor result...
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متن کاملK--> pi nu nu -bar and high precision determinations of the CKM matrix.
We investigate the future determination of the CKM matrix using theoretically clean quantities, like B(K → πνν̄), B(KL → πνν̄) or sin 2β, sin 2α as extracted from CP violation studies in B physics. The theoretical status of K → πνν̄ is briefly reviewed and their phenomenological potential is compared with that of CP asymmetries in B decays. We stress the unique opportunities provided by measuring ...
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ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2020
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s10052-020-8103-7