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Post-Planck CosmologyLecture Notes of the Les Houches Summer School: Volume 100, July 2013$
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Cédric Deffayet, Patrick Peter, Benjamin Wandelt, Matías Zaldarriaga, and Leticia F. Cugliandolo

Print publication date: 2015

Print ISBN-13: 9780198728856

Published to Oxford Scholarship Online: March 2015

DOI: 10.1093/acprof:oso/9780198728856.001.0001

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Particle physics and cosmology

Particle physics and cosmology

Chapter:
(p.352) (p.353) 8 Particle physics and cosmology
Source:
Post-Planck Cosmology
Author(s):

Pascal Pralavorio

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780198728856.003.0008

This chapter examines how it is possible to deduce consequences of particle physics for cosmology in light of the recent systematic exploration of the electroweak scale by experiments at the Large Hadron Collider (LHC). The two main results from the first phase of LHC, operation, namely, the discovery of a Higgs-like particle and the absence so far of new particles predicted by “natural” theories beyond the Standard Model (supersymmetry, extra dimensions and composite Higgs), are put in a historical context to highlight their importance, and are then presented in detail. For completeness, a short review of neutrino physics, which cannot be probed at the LHC, is also given. The ability of all these results to resolve the three fundamental questions of cosmology—the nature of dark energy and dark matter and the origin of matter–antimatter asymmetry—is discussed in each case.

Keywords:   particle physics, Large Hadron Collider, LHC, Higgs, supersymmetry, extra dimensions, neutrino physics

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