The simplest higgs portal dark matter model and its extensions xiaogang he nctssjtu work with jusak tandean arxiv. Pdf the 40 years old standard model, the theory of particle physics. The higgs boson is an elementary particle in the standard model of particle physics, produced by the quantum excitation of the higgs field, one of the fields in particle physics theory. Pdf broken symmetries and the higgs boson researchgate. Evidence for associated production of a higgs boson with a top quark pair in final states with electrons, muons, and hadronically decaying. I have been busy painting, and the published announcements i have scanned havent excited me enough to pull me away. Higgs boson found under bigfoots paw by miles mathis many of my readers have been begging yes beggingusing that word explicitly me to comment on the developing higgs boson fiasco. On 14 march 20, scientists at cern tentatively confirmed that they had found a higgs particle. In the simplest version of the electroweak theory, the higgs boson serves both to give the w and zbosons their masses and to give the fermions mass. Higgs boson simple english wikipedia, the free encyclopedia. Fermi national accelerator laboratory august 2015 what is. Although the present formulation of the theory comes from the 1960s and 70s, it incorporates all discoveries that thousands of scientists made about elementary particles and their interactions except for gravity. This particle is consistent with the higgs boson but it will take further work to determine whether or not it is the higgs boson predicted by the standard model.
On 4 july 2012, the atlas and cms experiments at cerns large hadron collider announced they had each observed a new particle in the mass region around 125 gev. Where were you on 4 july 2012, the day the higgs boson discov ery was announced. The last particle that completes the standard model of elementary particles, the most sophisticated theory of nature in human history, was discovered in 2012. The higgs boson or higgs particle is a particle in the standard model of physics. Al ternatively, herwig 73 or sherpa 74 are used to generate and hadronise parton showers, with the. The gauge symmetry of the standard model sm forbids gauge boson mass terms, but. Celebrations as higgs boson is finally discovered new. Carena fermi national accelerator laboratory and the university of chicago, c.
This book provides a comprehensive overview of the field of higgs boson physics. Observation of a new particle in the search for the standard model. Higgs boson physics, part i florida state university. The search for the higgs boson has become the holy grail of all particle accelerators. The higgs boson discovery at the large hadron collider roger. It is named after physicist peter higgs, who in 1964, along with five other scientists, proposed the higgs mechanism to explain why particles have mass. Model higgs boson with the atlas detector at the lhc.
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