Physics Encyclopedia Entry 1778071940
Summary: The Higgs Boson, a fundamental particle predicted by the Standard Model of particle physics, was discovered in 2012 at the Large Hadron Collider (LHC), providing evidence for the existence of the Higgs field, a crucial component of the universe's electroweak symmetry breaking.
Overview
The Higgs Boson is a scalar boson predicted by Peter Higgs and others in the 1960s as part of the Standard Model of particle physics. This model describes the behavior of fundamental particles and forces in the universe, including the strong nuclear force, weak nuclear force, and electromagnetism. The Higgs Boson is responsible for giving mass to fundamental particles, such as quarks and leptons, through its interaction with the Higgs field.
The Higgs Boson is a boson, a type of particle that carries a fundamental force, in this case, the Higgs force. It is a scalar particle, meaning it has no spin, and is the only fundamental scalar particle in the Standard Model. The Higgs Boson is also a gauge boson, meaning it is a carrier of a fundamental force, in this case, the Higgs force, which is responsible for the electroweak symmetry breaking.
History/Background
The Higgs Boson was first proposed by Peter Higgs and others in the 1960s as a way to explain how fundamental particles acquire mass. The Standard Model of particle physics was developed in the 1970s, and the Higgs Boson was predicted to be a fundamental component of this model. However, the Higgs Boson was not directly detected until 2012, when the Large Hadron Collider (LHC) at CERN in Switzerland produced a particle that was consistent with the predicted properties of the Higgs Boson.
The Large Hadron Collider (LHC) is a massive circular tunnel that smashes protons together at incredibly high energies, producing a vast array of subatomic particles. The ATLAS and CMS experiments, two of the four major experiments at the LHC, were designed to detect the Higgs Boson and other rare particles. On July 4, 2012, the ATLAS experiment announced the discovery of a particle that was consistent with the predicted properties of the Higgs Boson. This discovery was later confirmed by the CMS experiment, and the Higgs Boson was officially declared a discovery on March 14, 2013.
Key Information
* Mass: The Higgs Boson has a mass of approximately 125 GeV (gigaelectronvolts), which is about 133 times the mass of a proton.
* Spin: The Higgs Boson has zero spin, making it a scalar particle.
* Charge: The Higgs Boson has no electric charge, making it a neutral particle.
* Lifetime: The Higgs Boson has a very short lifetime, decaying into other particles in a matter of 10^-22 seconds.
* Detection: The Higgs Boson was detected using the ATLAS and CMS experiments at the Large Hadron Collider (LHC).
Significance
The discovery of the Higgs Boson is a major milestone in the development of the Standard Model of particle physics. It provides evidence for the existence of the Higgs field, a crucial component of the universe's electroweak symmetry breaking. The Higgs Boson also plays a key role in our understanding of the origin of mass in the universe. The discovery of the Higgs Boson has also opened up new areas of research, including the study of the Higgs field and its interactions with other particles.
INFOBOX:
- Name: Higgs Boson
- Type: Fundamental particle
- Date: 2012 (discovery)
- Location: Large Hadron Collider (LHC), CERN, Switzerland
- Known For: Discovery of the Higgs Boson, evidence for the existence of the Higgs field
TAGS: Higgs Boson, Standard Model, Large Hadron Collider, CERN, Particle Physics, Electroweak Symmetry Breaking, Higgs Field, Fundamental Particles, Scalar Boson, Gauge Boson.
