C. Shepherd

activity

20182020

R^{2}

heals Higgs inflation, but does not cool it

48 citations · 48 across the 1 of their papers we have counts for

collaborators

3 papers

hep-ph2020

A heatwave affair: mixed Higgs- $R^{2}$ preheating on the lattice

Fedor Bezrukov, Chris Shepherd

We use lattice methods to perform the first nonlinear study of preheating in $R^{2}$ -healed Higgs inflation for " $R^{2}$ -like" parameters $1.1 \times 1 0^{9}$ and $1.8 \times 1 0^{9}$ where th…

hep-ph2019★ 48 cited

Some like it hot: $R^{2}$ heals Higgs inflation, but does not cool it

Fedor Bezrukov, Dmitry Gorbunov, Chris Shepherd +1

Strong coupling in Higgs inflation at high energies hinders a joint description of inflation, reheating and low-energy dynamics. The situation may be improved with a proper UV comp…

hep-ph2018

Problems with Higgsplosion

Alexander Belyaev, Fedor Bezrukov, Chris Shepherd +1

A recent calculation of the multi-Higgs boson production in scalar theories with spontaneous symmetry breaking has demonstrated the fast growth of the cross section with the Higgs…

A heatwave affair: mixed Higgs-R2 preheating on the lattice

Some like it hot: R2 heals Higgs inflation, but does not cool it

Problems with Higgsplosion

A heatwave affair: mixed Higgs- $R^{2}$ preheating on the lattice

Some like it hot: $R^{2}$ heals Higgs inflation, but does not cool it