منابع مشابه
Higgs Boson and Z Boson
The recent discovery of a Higgs boson at the LHC is a milestone in the quest to understand electroweak symmetry breaking. It is an important particle because it is responsible for the Higgs mechanism by which all particles acquire mass. The existence of a particle with zero spin suggests the need for new physics beyond the standard model. Z bosons are known to naturally exist in well-motivate...
متن کاملHiggs Boson Properties and BSM Higgs Boson Searches at LHC
In the Minimal Supersymmetric Standard Model (MSSM), the minimal extension of the Standard Model (SM), two Higgs doublets are required, resulting in five observable Higgs bosons. Three of them are electrically neutral (h, H , and A) while two of them are charged (H). At tree level their properties like masses, widths and branching fractions can be predicted in terms of only two parameters, typi...
متن کاملHiggs Boson Mass From Gauge-Higgs Unification
In certain five dimensional gauge theories the Standard Model Higgs doublet is identified, after compactification on the orbifold S/Z2, with the zero mode of the fifth component of the gauge field. An effective potential for the Higgs field is generated via quantum corrections, triggered by the breaking of the underlying gauge symmetry through boundary conditions. The quartic Higgs coupling can...
متن کامل– 1 – the Higgs Boson
The Standard Model [1] contains one neutral scalar Higgs boson, which is a remnant of the mechanism that breaks the SU(2) × U(1) symmetry and generates the W and Z boson masses. The Higgs couples to quarks and leptons of mass m f with a strength gm f /2M W. Its coupling to W and Z bosons is of strength g, where g is the coupling constant of the SU(2) gauge theory. The branching ratio of the Hig...
متن کاملLHC Higgs Boson searches
A summary of the Higgs boson searches by the ATLAS and CMS collabrations using 1 f b −1 of LHC data is presented, concentrating on the Standard Model Higgs boson. Both experiments have the sensitivity to exclude at 95% CL a Standard Model Higgs boson in most of the Higgs boson mass region between about 130 GeV and 400 GeV. The observed data allow the exclusion of a Higgs Boson of mass 155 GeV t...
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ژورنال
عنوان ژورنال: La lettre du Collège de France
سال: 2015
ISSN: 1628-2329,2109-9219
DOI: 10.4000/lettre-cdf.2184