A bstract Sphaleron and instanton solutions of the Standard Model provide violation of
baryon and lepton numbers and could lead to spectacular events at the LHC or future …

A bstract In a recent paper, Tye and Wong (TW) have argued that sphaleron-induced
transitions in high-energy proton-proton collisions should be enhanced compared to …

In an external magnetic field, the energy of the electroweak sphaleron—representing the
energy barrier to baryon and lepton number violation—decreases but remains nonzero until …

A bstract We investigate the phenomenological aspects of non-perturbative baryon-and
lepton-number-violating processes at hadron colliders. Such processes, induced by instan …

Baryon number violation in the electroweak standard model is expected to proceed through
classical transitions over the sphaleron barrier connecting vacua of different Chern-Simons …

A bstract A search in energetic, high-multiplicity final states for evidence of physics beyond
the standard model, such as black holes, string balls, and electroweak sphalerons, is …

We reanalyse the sphaleron bound of electroweak baryogenesis when allowing deviations
to the Friedmann equation. These modifications are well motivated in the context of brane …

We use semiclassical methods to study processes which give rise to change of topology and
therefore to baryon number violation in the standard model. We consider classically allowed …

A search in energetic, high-multiplicity final states for evidence of physics beyond the
standard model, such as black holes, string balls, and electroweak sphalerons, is presented …

Motivated by recent investigations in sphaleron physics, we discuss several ways in which
even weakly-coupled gauge theories, like the standard model, show non-perturbative …