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Scale-dependent bias from multiple-field inflation
journal contribution
posted on 2023-06-08, 17:24 authored by Mafalda Dias, Ribeiro H Raquel, David SeeryDavid SeeryWe provide a formula for the scaling behaviour of the inflationary bispectrum in the 'squeezed' limit where one momentum becomes much smaller than the other two. This determines the scaling of the halo bias at low wavenumber and will be an important observable for the next generation of galaxy surveys. Our formula allows it to be predicted for the first time for a generic inflationary model with multiple light, canonically-normalized scalar fields.
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Publication status
- Published
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- Published version
Journal
Physical Review DISSN
1550-7998Publisher
American Physical SocietyExternal DOI
Volume
87Page range
107301Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2014-05-23First Open Access (FOA) Date
2016-11-28First Compliant Deposit (FCD) Date
2014-09-08Usage metrics
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