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- Pilaftsis
- Physical review. D, Particles and fields
- 1994

The general Lagrangian containing the couplings of the Higgs scalars to Majorana neutrinos is presented in the context of singlet Majoron models with intergenerational mixings. The analytical… (More)

The possibility of discovering heavy Majorana neutrinos and lepton number violation via the like-sign dilepton signal at hadron supercolliders is investigated. The cross sections for the production… (More)

- Papavassiliou, Pilaftsis
- Physical review letters
- 1995

A gauge-independent approach to resonant transition amplitudes with nonconserved external currents is presented, which is implemented by the pinch technique. The analytic expressions derived with… (More)

- Papavassiliou, Pilaftsis
- Physical review. D, Particles and fields
- 1996

We present a new gauge-independent approach to resonant transition amplitudes with nonconserved external currents, based on the pinch technique method. In the context of 2{r_arrow}2 and 2{r_arrow}3… (More)

- Papavassiliou, Pilaftsis
- Physical review. D, Particles and fields
- 1996

The consistent description of unstable particles, renormalons, or other Schwinger-Dyson-type solutions within the framework of perturbative gauge field theories necessitates the definition and… (More)

- Pilaftsis
- 1996

Leptonic flavor-changing [ital H][sup 0] decays with branching ratios of the order of 10[sup [minus]5--]10[sup [minus]6] may constitute an interesting framework when looking for large [ital… (More)

- Nowakowski, Pilaftsis
- Physical review. D, Particles and fields
- 1993

In a minimal extension of the standard model in which new neutral fermions have been introduced, we show that the requirement of vanishing anomalies fixes the hypercharges of all fermions uniquely.… (More)

The basic requirement that, in quantum theory, the time evolution of any state is determined by the action of a unitary operator, is shown to be the underlying cause for certain… (More)

We investigate the potential for future TeV linear {ital e}{sup +}{ital e}{sup {minus}} colliders to observe singly charged Higgs bosons ({ital H}{sup {plus_minus}}) via the coupling {ital H}{sup… (More)