Volume 124, Number 3, November 2018
|Number of page(s)||7|
|Section||The Physics of Elementary Particles and Fields|
|Published online||03 December 2018|
On Cabibbo angle from theory
Department of Physics, Technical University of Denmark - Fysikvej bld 307, DK-2800 Kongens Lyngby, Denmark, EU
Received: 25 August 2018
Accepted: 29 October 2018
We find an expression for the Cabibbo angle from quark flavour generators of the first two generations. The flavour generators operate on the toroidal components in an intrinsic dynamics for colour degrees of freedom. The generators have led to parton distributions for u and d valence quarks of the proton that compare well with those derived from experiment. The present result for the cosine of the Cabibbo angle compares rather well with the experimentally established value for the up-down quark mixing element 0.97420+/−0.00021 of the Cabibbo-Kobayashi-Maskawa matrix.
PACS: 12.15.Ff – Quark and lepton masses and mixing / 12.40.Yx – Hadron mass models and calculations / 12.90.+b – Miscellaneous theoretical ideas and models (restricted to new topics in section 12)
© EPLA, 2018
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