arXiv subjects

Yu. P. Philippov

Publications and source records attributed to Yu. P. Philippov.

2 recordsLinked to original sources

arXiv2007

Yukawa radiative corrections to the trilinear self-couplings of neutral CP-even Higgs bosons and decay width $Γ(H \to hh)$ in the MSSM

The four self-couplings $λ_{hhh}$, $λ_{hhH}$, $λ_{hHH}$, $λ_{HHH}$ and decay width $Γ(H \to hh)$ are calculated taken into account one-loop $t,b,c$ - (s)quarks, $τ$ - (s)lepton corrections in the framework of the Minimal Supersymmetric Standard Model (MSSM). By the example of self-couplings dependencies from $ \tg β$ and \textrm{$M_A$}, it is shown, that calculated corrections can give the essential contribution to self-couplings and decay width determined at one-loop level. The radiative corrections account becomes necessary condition for performance of Higgs potential reconstruction procedure and experimental confirmation of Higgs mechanism.

hep-ph↗

arXiv2003

The trilinear neutral Higgs self-couplings in the MSSM. Complete one-loop analysis

The Higgs boson effective self-couplings $λ_{hhh}$ and $λ_{HHH}$ are calculated in the framework of the Minimal Supersymmetric Standard Model (MSSM) for the complete set of one-loop diagrams with one of the Higgs bosons off-shell. The comparison with previous results, where only the leading correction terms in the limiting case of large masses of virtual particles were calculated, is carried out. We analyse the dependence of the self-couplings on the energy and ${\tt tan} β$; it is demonstrated that the tree-level self-couplings could acquire substantial one-loop corrections, which could be phenomenologically important.

hep-ph↗