Decomposition of d = 9 short-range 0??? decay operators at one-loop level

0 Electroweak Sudakov at two loop level

We investigate the Sudakov double logarithmic corrections to the form factor of fermion in the SU(2)⊗U(1) electroweak theory. We adopt the familiar Feynman gauge and present explicit calculations at the two loop level. We show that the leading logarithmic corrections coming from the infrared sin-gularities are consistent with the " postulated " exponentiated electroweak Sudakov form factor. The...

Decay widths of all MSSM scalar particles at full one-loop level

We discuss two packages in preparation, which calculate all possible two-body decays at full one-loop level of all scalars particles of the Minimal Supersymmetric extension of the Standard Model. The package HFOLD (Higgs Full One-Loop Decays) calculates the decay widths and branching ratios of the three neutral and charged Higgs bosons. The package SFOLD (Sfermion Full One-Loop Decays) computes...

Bounding Effective Operators at the One-Loop Level: The Case of Four-Fermion Neutrino Interactions

The contributions of non-standard four-neutrino contact interactions to electroweak observables are considered at the one-loop level by using the effective quantum field theory. The analysis is done in terms of three unknown parameters: the strength of the non-standard neutrino interactions, F̃ , an additional derivative coupling needed to renormalize the divergent contributions that appear when...

Effects of final state interaction in B^+_c to D^0 K^+ decay

In this paper, the decay of Bc+ meson, which consists of two b and c heavy quarks, into the Do and K+  mesons was studied. Given that the experimental branching ratio for this decay was within the range of 3.75*10-5 to 11.16*10-5; it was decided to calculate the theoretical branching ratio by applying the final state interaction (FSI) through the T and cross-section channels. In this process, b...

Equilibrium Phases of One-patch Colloids at Short Interaction Range