Forbidden and invisible Z boson decays in a covariant theta-exact noncommutative standard model (CROSBI ID 205583)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Horvat, Raul ; Ilakovac, Amon ; Kekez, Dalibor ; Trampetić, Josip ; You, Jiangyang
engleski
Forbidden and invisible Z boson decays in a covariant theta-exact noncommutative standard model
The triple neutral gauge boson and direct U(1)_Y-neutrino interactions, being absent in ordinary field theory, can arise quite naturally in noncommutative gauge field theories. Using non-perturbative methods and a Seiberg-Witten map-based covariant approach to noncommutative gauge theory, we have found θ-exact expressions for both interactions, thereby eliminating previous restrictions to low-energy phenomena. In particular, we obtain for the first time the covariant, θ-exact, triple neutral gauge boson interactions within the noncommutative standard model gauge sector including an additional gauge-field deformation freedom. Finally, we discuss implications for Z → γγ and Z → nubar nu decays, and show that our results behave quite reasonably throughout all interaction energy scales.
noncommutative geometry; Z-boson physics; neutrino physics
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o izdanju
41 (5)
2014.
055007-1-055007-13
objavljeno
0954-3899
10.1088/0954-3899/41/5/055007