Bose polarons, quasiparticles composed of mobile impurities surrounded by cold gas, can experience strong interactions mediated the many-body environment and form bipolaron bound states. Here we present a detailed study heavy polarons in one-dimensional gas formulating nonperturbative theory complementing it with exact numerical simulations. We develop an analytic approach for weak boson-boson ...

It is shown that field-theory based single boson exchange potentials cannot be identified to those of the Yukawa or Coulomb type that are currently inserted in the Schrödinger equation. The potential which is obtained rather corresponds to this current single boson exchange potential corrected for the probability that the system under consideration is in a two-body component, therefore missing ...

A generic prediction of models where supersymmetry is broken at scales within a few orders of magnitude of the weak scale and is fed down to the observable sector by gauge interactions is the existence of superconducting cosmic strings which carry baryon number. In this paper we propose a novel mechanism for the generation of the baryon asymmetry which takes place at temperatures much lower tha...

The diquark structure in baryons is commonly accepted as a reasonable approximation which can much simplify the picture and reduce the length of calculations. However, a diquark by no means is a point-like particle, even though it is treated as a whole object. Therefore, to apply the diquark picture to the phenomenological calculations, at the effective vertices for the diquark-gauge boson inte...

Recently a new class of composite Higgs models have been developed which give rise to naturally light Higgs bosons without supersymmetry. Based on the chiral symmetries of “theory space,” involving replicated gauge groups and appropriate gauge symmetry breaking patterns, these models allow the scale of the underlying strong dynamics giving rise to the composite particles to be as large as of or...

A model of two interacting one–dimensional fermion systems (" Luttinger liquids ") coupled by single–particle hopping is investigated. Bosonization allows a number of exact statements to be made. In particular, for forward scattering only, the model contains two massless boson sectors and an Ising type critical sector. For general interactions, there is a spin excitation gap and either s– or d–...

We investigate whether the universe was homogeneously in the false vacuum state at the critical temperature of a weakly first-order phase transition such as the electroweak phase transition in terms of a series of numerical simulations of a phenomenological Langevin equation, whose noise term is derived from the effective action but the dissipative term is set so that the fluctuationdissipation...

The Large Hadron Collider at CERN will play an important role in the investigation of fundamental questions of particle physics. While the Standard Model of electroweak [1] and strong [2] interactions is in excellent agreement with the numerous experimental measurements, the dynamics responsible for the electroweak symmetry breaking are still unknown. Within the Standard Model, the Higgs mechan...

In the standard model, fermions acquire mass via Yukawa interaction. This mechanism can be tested by measuring couplings of with Higgs boson. At ATLAS experiment, Higgs-fermion coupling measurements became possible thanks to abundant dataset: integrated luminosity 139~fb ^{-1} −</mml:...

Several experiments around the world are looking for a new particle, named Dark Boson, which may do link between Ordinary Matter (which forms basically stars, planets, interstellar gas...) and Hidden Sectors of Universe. This if it exists, would act as messenger fundamental interaction nature. In this paper, underlying theory will be introduced first. A non-exhaustive summary experimental studi...