Ricardo A. Jiménez

Quantum effects on \(t\rightarrow H^{+}\,b\) in the MSSM: a window to “virtual” supersymmetry?

Abstract. We analyze the one-loop effects (strong and electroweak) on the unconventional top quark decay mode

STRONG EFFECTS ON THE HADRONIC WIDTHS OF THE NEUTRAL HIGGS BOSONS IN THE MSSM

t\rightarrow H^{+}\, b

Supersymmetric QCD corrections to the charged Higgs boson decay of the top quark

within the MSSM. The results are presented in the on-shell renormalization scheme with a physically well motivated definition of

SUPERSYMMETRIC QCD CORRECTIONS TO THE TOP QUARK DECAY OF A HEAVY CHARGED HIGGS BOSON

\tan\beta

Full electroweak supersymmetric quantum effects on Rb in the MSSM

. The study of this process at the quantum level is useful to unravel the potential supersymmetric nature of the charged Higgs emerging from that decay. As compared with the standard mode

Electroweak supersymmetric quantum corrections to the top quark width

t\rightarrow W^{+}\,b

HEAVY CHARGED HIGGS BOSON DECAYING INTO TOP QUARK IN THE MSSM

, the corrections to

Strong supersymmetric quantum effects on the top quark width

t\rightarrow H^{+}\, b

The tan β − MH± bound from inclusive semi-tauonic B-decays in the MSSM

are large, slowly decoupling and persist at a sizeable level even for all sparticle masses well above the LEP 200 discovery range. As a matter of fact, the potential size of the SUSY effects, which amount to corrections of several ten percent, could counterbalance the standard QCD corrections and even make them to appear with the “wrong” sign. Therefore, if the charged Higgs decay of the top quark is kinematically allowed – a possibility which is not excluded by the existing measurements of the branching ratio

Quantum effects on <img src="/fulltext-image.asp?format=htmlnonpaginated&src=6VTQ85AJMM8THLLQ_html\

BR(t\rightarrow W^{+}\,b)