Physics:Quantum Higgs boson: Difference between revisions
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Revision as of 20:46, 19 May 2026
The quantum Higgs boson is the particle excitation of the Higgs field. In the Standard Model, the Higgs field is linked to electroweak symmetry breaking and to the masses of many elementary particles. The observed Higgs boson provides experimental access to this field and its couplings.[1][2][3]
Higgs field
The Higgs field has a nonzero vacuum value in the Standard Model. Through electroweak symmetry breaking, W and Z bosons acquire mass, while fermion masses arise through Yukawa couplings to the Higgs field. The photon remains massless in this framework.[4]
Discovery and measurements
ATLAS and CMS reported observation of a new boson near 125 GeV in 2012. Subsequent measurements of spin, parity, production modes, and decay channels support its identification as the Standard Model Higgs boson, while precision coupling measurements continue to test for deviations.[5]
Open questions
The Higgs sector raises questions about naturalness, vacuum stability, dark matter connections, and whether additional scalar particles exist. Future colliders and improved LHC analyses aim to measure rare decays, self-coupling, and possible new interactions.
See also
Table of contents (84 articles)
Index
Full contents
References
- ↑ Higgs, Peter W. (1964). "Broken Symmetries and the Masses of Gauge Bosons". Physical Review Letters 13 (16): 508-509. doi:10.1103/PhysRevLett.13.508.
- ↑ Aad, G. (2012). "Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC". Physics Letters B 716 (1): 1-29. doi:10.1016/j.physletb.2012.08.020.
- ↑ Chatrchyan, S. (2012). "Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC". Physics Letters B 716 (1): 30-61. doi:10.1016/j.physletb.2012.08.021.
- ↑ Schwartz, Matthew D. (2014). Quantum Field Theory and the Standard Model. Cambridge University Press. ISBN 978-1-107-03473-0.
- ↑ Particle Data Group (2022). "Review of Particle Physics". Progress of Theoretical and Experimental Physics 2022 (8): 083C01. doi:10.1093/ptep/ptac097.
Source attribution: Physics:Quantum Higgs boson