A gravitational wave background from the decay of the standard model Higgs after inflation

被引:30
作者
Figueroa, Daniel G. [1 ,2 ]
机构
[1] Univ Geneva, Dept Phys Theor, CH-1211 Geneva 4, Switzerland
[2] Univ Geneva, Ctr Atroparticle Phys, CH-1211 Geneva 4, Switzerland
基金
瑞士国家科学基金会;
关键词
Higgs Physics; Cosmology of Theories beyond the SM; Standard Model; RADIATION; STATE;
D O I
10.1007/JHEP11(2014)145
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
The stability of the Standard Model (SM) at high energies implies that the SM Higgs forms a condensate during inflation, which starts oscillating soon after the inflationary stage ends. This causes the Higgs to decay very fast, via non-perturbative effects, into all the SM fields coupled directly to it. The excited species act as a source of gravitational waves (GWs), and as a result, all Yukawa and SU(2)(L) gauge couplings of the SM are imprinted as features in the GW spectrum. In practice, the signal is dominated by the most strongly interacting species, rendering the information on the other species inaccessible. To detect this background new high frequency GW detection technology is required, beyond that of currently planned detectors. If detected, this signal could be used for measuring properties of high-energy particle physics, including beyond the SM scenarios.
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页数:16
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