Janusz Rosiek

Dimension-Six Terms in the Standard Model Lagrangian ⋆

When the Standard Model is considered as an effective low-energy theory, higher dimensional interaction terms appear in the Lagrangian. Dimension-six terms have been enumerated in the classical article by Buchmüller and Wyler [3]. Although redundance of some of those operators has been already noted in the literature, no updated complete list has been published to date. Here we perform their classification once again from the outset. Assuming baryon number conservation, we find 15 + 19 + 25 = 59 independent operators (barring flavour structure and Hermitian conjugations), as compared to 16 + 35 + 29 = 80 in ref. [3]. The three summed numbers refer to operators containing 0, 2 and 4 fermion fields. If the assumption of baryon number conservation is relaxed, 5 new operators arise in the four-fermion sector.

ΔMd,s, B0d,s→μ+μ− and B→Xsγ in supersymmetry at large tanβ

We present an effective Lagrangian formalism for the calculation of flavour changing neutral and charged scalar currents in weak decays including

Complete set of Feynman rules for the minimal supersymmetric extension of the standard model.

SU(2)\times U(1)

Complete on-shell renormalization scheme for the minimal supersymmetric Higgs sector

symmetry breaking effects and the effects of the electroweak couplings

Supersymmetry and FCNC effects

g_1

Correlation between ΔMs and B0s,d→μ+μ− in supersymmetry at large tanβ

and

Constraints on phases of supersymmetric flavour conserving couplings

g_2

ΔMs/ΔMd, sin2β and the angle γ in the presence of new ΔF=2 operators

. We apply this formalism to the MSSM with large

One-loop corrections to the supersymmetric Higgs boson couplings and LEP phenomenology

\tan\beta

Complete resummation of chirally-enhanced loop-effects in the MSSM with non-minimal sources of flavor-violation

with the CKM matrix as the only source of flavour violation, heavy supersymmetric particles and light Higgs bosons. We give analytic formulae for the neutral and charged Higgs boson couplings to quarks including large