35 citations · 129 across the 11 of their papers we have counts for
11 papers
Higgsino dark matter in the Starobinsky supergravity with the MSSM in light of the LUX-ZEPLIN event
Daniel Frolovsky, Sergei V. Ketov
We realize a nearly pure higgsino dark matter candidate with mass of about 1 TeV in the Minimal Supersymmetric Standard Model coupled to the Starobinsky supergravity. The recent LU…
Higgs boson mass and thermal wino dark matter from Starobinsky supergravity with the MSSM
Daniel Frolovsky, Alexander Belyaev, Sergei V. Ketov
We propose a framework connecting cosmic microwave background (CMB) observables with high-energy particle phenomenology, based on Starobinsky supergravity coupled to the Minimal Su…
Are single-field models of inflation and PBHs production ruled out by ACT observations?
Daniel Frolovsky, Sergei V. Ketov
The data release from the Atacama Cosmology Telescope (ACT) imposes stronger constraints on primordial black holes (PBHs) formation in single-field inflation models versus the Plan…
One-loop corrections to the E-type -attractor models of inflation and primordial black hole production
Daniel Frolovsky, Sergei V. Ketov
The one-loop corrections (1LC) to the power spectrum of scalar perturbations arising from cubic interactions in the single-field E-type -attractor models of inflation and primor…
Reconstructing Primordial Black Hole Power Spectra from Gravitational Waves
Daniel Frolovsky, Florian Kuhnel, Ioanna Stamou
A novel methodology for analysing the relation between the energy density in gravitational waves and primordial power spectra is developed. Focusing on scalar-induced gravitational…
Dilaton-axion modular inflation in supergravity
Daniel Frolovsky, Sergei V. Ketov
Dilaton and axion are ubiquitous in extended supergravities and closed superstrings. We propose new models of modular inflation in four-dimensional supergravity coupled to th…
Production of primordial black holes in improved E-models of inflation
Daniel Frolovsky, Sergei V. Ketov
The E-type -attractor models of single-field inflation were generalized further in order to accommodate production of primordial black holes (PBH) via adding a near-inflection p…
Fitting power spectrum of scalar perturbations for primordial black hole production during inflation
Daniel Frolovsky, Sergei V. Ketov
We propose a simple analytic fit for the power spectrum of scalar (curvature) perturbations during inflation, in order to describe slow roll of inflaton and formation of primordial…
E-models of inflation and primordial black holes
Daniel Frolovsky, Sergei V. Ketov, Sultan Saburov
We propose and study the new (generalized) E-type -attractor models of inflation, in order to include formation of primordial black holes (PBHs). The inflaton potential has a ne…
Gauge symmetry of linearised Nordström gravity and the dual spin two field theory
V. A. Abakumova, Daniel Frolovsky, Hans-Christian Herbig +1
The field equations are proposed for the third rank tensor field with the hook Young diagram. The equations describe the irreducible spin two massless representation in any $d\geq…
Formation of primordial black holes after Starobinsky inflation
Daniel Frolovsky, Sergei V. Ketov, Sultan Saburov
We adapted the Appleby-Battye-Starobinsky model of gravity towards describing double cosmological inflation and formation of primordial black holes with masses up to $10^{19…