Publication

ON THE MODEL DEPENDENCE OF THE COSMOLOGICAL UPPER BOUND ON THE HIGGS BOSON AND TOP QUARK MASSES

Mikhail Chapochnikov
1991
Journal Articles

Abstract

We consider an electroweak scenario for baryon asymmetry generation in an extended model with two Higgs doublets. The upper bound on the mass of the lightest Higgs boson is obtained. It is shown to coincide with that of the theory with one Higgs doublet, namely, mH

Official source

https://infoscience.epfl.ch/entities/publication/a90e4c17-8b9e-48f9-b9b5-128f74ee6b9b

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Mikhail Chapochnikov
1991
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/a90e4c17-8b9e-48f9-b9b5-128f74ee6b9b

About this result

Related concepts (32)

Higgs boson

The Higgs boson, sometimes called the Higgs particle, is an elementary particle in the Standard Model of particle physics produced by the quantum excitation of the Higgs field, one of the fields in particle physics theory. In the Standard Model, the Higgs particle is a massive scalar boson with zero spin, even (positive) parity, no electric charge, and no colour charge that couples to (interacts with) mass. It is also very unstable, decaying into other particles almost immediately upon generation.

Higgs mechanism

In the Standard Model of particle physics, the Higgs mechanism is essential to explain the generation mechanism of the property "mass" for gauge bosons. Without the Higgs mechanism, all bosons (one of the two classes of particles, the other being fermions) would be considered massless, but measurements show that the W+, W−, and Z0 bosons actually have relatively large masses of around 80 GeV/c2. The Higgs field resolves this conundrum. The simplest description of the mechanism adds a quantum field (the Higgs field) which permeates all of space to the Standard Model.

Gauge boson

In particle physics, a gauge boson is a bosonic elementary particle that acts as the force carrier for elementary fermions. Elementary particles, whose interactions are described by a gauge theory, interact with each other by the exchange of gauge bosons, usually as virtual particles. Photons, W and Z bosons, and gluons are gauge bosons. All known gauge bosons have a spin of 1; for comparison, the Higgs boson has spin zero and the hypothetical graviton has a spin of 2. Therefore, all known gauge bosons are vector bosons.

Related publications (3)

ON THE MODEL DEPENDENCE OF THE COSMOLOGICAL UPPER BOUND ON THE HIGGS BOSON AND TOP QUARK MASSES

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Precise Measurement of Matter-Antimatter Asymmetry with Entangled Hyperon-Antihyperon Pairs

Search for the Lepton Number Violating Process j/ψ = k Plus k Plus e- e- Plus c.c.*

Measurements of production cross sections of polarized same-sign W boson pairs in association with two jets in proton-proton collisions at s=13 TeV