Physics Encyclopedia Entry 1783659665
Summary: This entry is about the Higgs Boson, a fundamental subatomic particle discovered in 2012 at the Large Hadron Collider (LHC) that explains how particles acquire mass.
Overview
The Higgs Boson is a scalar boson predicted by the Standard Model of particle physics to explain the origin of mass in fundamental particles. It is named after physicist Peter Higgs, who, along with others, proposed the existence of this particle in the 1960s. The Higgs Boson is a key component of the Higgs mechanism, which describes how particles interact with the Higgs field, a field that permeates all of space and is responsible for giving mass to fundamental particles.
The discovery of the Higgs Boson was a major milestone in particle physics, confirming a key aspect of the Standard Model. The particle is extremely short-lived, decaying almost immediately into other particles, making its detection a significant challenge. The discovery was announced on July 4, 2012, by the ATLAS and CMS collaborations at the LHC, a powerful particle accelerator located at CERN in Geneva, Switzerland.
History/Background
The concept of the Higgs Boson was first proposed by Peter Higgs and Felix Bloch in the 1960s as a way to explain the origin of mass in fundamental particles. The Standard Model of particle physics was developed in the 1970s, and it predicted the existence of the Higgs Boson as a key component of the Higgs mechanism. The Large Electron-Positron Collider (LEP) at CERN was used to search for the Higgs Boson in the 1980s and 1990s, but it was not detected.
The LHC, which began operation in 2008, was designed to have a higher energy than LEP, making it a more powerful tool for detecting the Higgs Boson. The ATLAS and CMS collaborations were formed to search for the Higgs Boson at the LHC, using sophisticated detectors and sophisticated algorithms to analyze the data.
Key Information
The Higgs Boson is a scalar boson with a mass of approximately 125 GeV (gigaelectronvolts), which is about 133 times the mass of a proton. It is a fundamental particle that interacts with the Higgs field, which is a field that permeates all of space. The Higgs field is responsible for giving mass to fundamental particles, such as quarks and leptons.
The Higgs Boson was detected by the ATLAS and CMS collaborations using a technique called particle reconstruction, which involves analyzing the decay products of the Higgs Boson to infer its presence. The detection was confirmed by analyzing the data from both collaborations, which showed a clear excess of events consistent with the Higgs Boson.
Significance
The discovery of the Higgs Boson confirmed a key aspect of the Standard Model of particle physics, which describes the behavior of fundamental particles and forces. The Higgs mechanism explains how particles acquire mass, which is a fundamental property of matter. The discovery also confirmed the existence of the Higgs field, which is a key component of the Standard Model.
The discovery of the Higgs Boson has significant implications for our understanding of the universe. It confirms that the Standard Model is a fundamental theory of particle physics, and it provides a new tool for understanding the behavior of fundamental particles and forces. The discovery also opens up new avenues for research, including the study of the Higgs field and its properties.
INFOBOX:
- Name: Higgs Boson
- Type: Fundamental particle
- Date: July 4, 2012
- Location: Large Hadron Collider (LHC), CERN, Geneva, Switzerland
- Known For: Discovery of the Higgs Boson, confirming the existence of the Higgs field and the Higgs mechanism
TAGS: Higgs Boson, Standard Model, Particle Physics, Large Hadron Collider, CERN, ATLAS, CMS, Felix Bloch, Peter Higgs, Higgs Mechanism, Higgs Field
