TY  -  
T1  - Higgs-like spectator field as the origin of structure 
SN  -  /  
UR  - http://hdl.handle.net/10138/334713 
T3  -  
A1  - Karam, Alexandros; Markkanen, Tommi; Marzola, Luca; Nurmi, Sami; Raidal, Martti; Rajantie, Arttu 
A2  -  
PB  -  
Y1  - 2021 
LA  - eng 
AB  - We show that the observed primordial perturbations can be entirely sourced by a light spectator scalar field with a quartic potential, akin to the Higgs boson, provided that the field is sufficiently displaced from vacuum during inflation. The framework relies on the indirect modulation of reheating, which is implemented without any direct coupling between the spectator field and the inflaton and does not require non-renormalisable interactions. The scenario gives rise to local non-Gaussianity w... 
VO  -  
IS  -  
SP  -  
OP  -  
KW  - 114 Physical sciences 
N1  -   
PP  -  
ER  -