Author
Chatrchyan, S., Işıldak, Bora
Publication Date
2012-12-21
Publication Place
-
American Association for the Advancement of Science
Subject
Model higgs-boson, PP Collisions, Root-S=7 TeV, Broken symmetries, Weak interactions, Atlas Detector, Gauge-theories
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
1095-9203
Record ID
54c320e7-8e5a-486f-a18a-18173dfa297e
Library Location
Natural and Mathematical Sciences
Date
2012-12-21
Notes
Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Sample Text
The Higgs boson was postulated nearly five decades ago within the framework of the standard model of particle physics and has been the subject of numerous searches at accelerators around the world. Its discovery would verify the existence of a complex scalar field thought to give mass to three of the carriers of the electroweak force—the W+, W–, and Z0 bosons—as well as to the fundamental quarks and leptons. The CMS Collaboration has observed, with a statistical significance of five standard deviations, a new particle produced in proton-proton collisions at the Large Hadron Collider at CERN. The evidence is strongest in the diphoton and four-lepton (electrons and/or muons) final states, which provide the best mass resolution in the CMS detector. The probability of the observed signal being due to a random fluctuation of the background is about 1 in 3 × 106. The new particle is a boson with spin not equal to 1 and has a mass of about 125 giga–electron volts. Although its measured properties are, within the uncertainties of the present data, consistent with those expected of the Higgs boson, more data are needed to elucidate the precise nature of the new particle.
DOI
10.1126/science.1230816
Cilt
338
