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Who Cares about Particle Physics?Making Sense of the Higgs Boson, the Large Hadron Collider and CERN$
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Pauline Gagnon

Print publication date: 2016

Print ISBN-13: 9780198783244

Published to Oxford Scholarship Online: August 2016

DOI: 10.1093/acprof:oso/9780198783244.001.0001

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The Dark Side of the Universe

The Dark Side of the Universe

Chapter:
(p.93) 5 The Dark Side of the Universe
Source:
Who Cares about Particle Physics?
Author(s):

Pauline Gagnon

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780198783244.003.0005

The Standard Model works incredibly well but applies to a mere 5% of the content of the Universe; 27% of the Universe is made of a strange type of matter, something absolutely mysterious called dark matter. The remaining 68% of the Universe comes in the form of an enigmatic type of energy called dark energy. Evidence of the existence of dark matter abounds. We detect its presence through its gravitational effects and by means of gravitational lenses. It also plays an essential role in cosmology, acting as a catalyst for the formation of galaxies. Without it, the Universe would not appear as it does today. But dark matter remains elusive. Several experiments are currently in progress deep underground, aboard the International Space Station and at the Large Hadron Collider (LHC) at CERN hoping to catch or produce dark matter particles for the first time.

Keywords:   Dark matter, dark energy, cosmology, galaxy formation, detector, dark matter detection, underground experiment, gravitational lens, gravitational lensing

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