Higgs field and higgs boson
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Understanding the Higgs Field and Higgs Boson
Introduction to the Higgs Field and Higgs Boson
The Higgs field is a fundamental aspect of the Standard Model of particle physics, acting as a pervasive field that imparts mass to elementary particles. The Higgs boson, discovered in 2012 at CERN, is the quantum manifestation of this field, playing a crucial role in the mass-giving mechanism4 10.
The Higgs Field as an Inflaton
The Higgs field can also function as an inflaton, driving the inflationary expansion of the early Universe when non-minimally coupled to gravity. This model aligns well with Cosmic Microwave Background (CMB) observations and has significant implications for the Higgs boson mass1. Additionally, the scalaron-Higgs inflation model, which supplements the Einstein-Hilbert action with quadratic scalar curvature, shows that the Higgs field can effectively reduce to a single-field model, mirroring predictions of Higgs or Starobinsky inflation8.
Higgs Boson Couplings and Effective Field Theories
The Higgs boson interacts with gauge bosons and fermions, providing mass to these particles through its couplings. These interactions can be studied using the Standard Model Effective Field Theory (SMEFT), which helps in fitting Higgs boson signal strengths and predicting phenomena like non-resonant double Higgs boson production3. Effective field theories also extend to scenarios involving two Higgs doublets, affecting Higgs and gauge boson masses and their couplings5.
Higgs Boson in High-Energy Physics and Superconductors
In high-energy physics, the Higgs boson’s decay products reveal its couplings to other particles. Interestingly, a similar concept applies in superconductors, where Cooper pairs mimic the Higgs field. Studies on cuprate thin films have shown that the Higgs mode in these materials can provide insights into the microscopic pairing mechanisms2.
Preheating and Higgs Inflation
During the preheating phase after Higgs inflation, the self-resonance of the Higgs field and the production of gauge bosons are critical. The efficiency of energy transfer from the Higgs condensate to Higgs particles or gauge fields depends on the nonminimal coupling values, with larger couplings facilitating quicker energy transfer6.
Higgs-Portal for Dark Matter
The Higgs-portal effective field theories are instrumental in interpreting collider and astroparticle searches for dark matter (DM). These models, when compared to more complex realistic models, provide a consistent limit for interpreting searches for invisible Higgs boson decays at the LHC9.
Future Prospects and Implications
The discovery of the Higgs boson has opened new avenues for understanding the universe. Current and future experiments at the Large Hadron Collider (LHC) focus on precision measurements of the Higgs boson’s properties, its self-interactions, and potential connections to dark matter, dark energy, and early universe phase transitions10.
Conclusion
The Higgs field and Higgs boson are central to our understanding of particle physics and cosmology. From driving early universe inflation to providing mass to elementary particles and potentially linking to dark matter, the study of the Higgs field and boson continues to be a pivotal area of research with far-reaching implications.
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