38 citations · 228 across the 18 of their papers we have counts for
18 papers
On unitarity in singlet inflation with a non-minimal coupling to gravity
Oleg Lebedev, Yann Mambrini, Jong-Hyun Yoon
We study inflationary models based on a non-minimal coupling of a singlet scalar to gravity, focussing on the preheating dynamics and the unitarity issues in this regime. If the sc…
Dark matter production via a non-minimal coupling to gravity
Oleg Lebedev, Timofey Solomko, Jong-Hyun Yoon
We study postinflationary scalar dark matter production via its non-minimal coupling to gravity. During the inflaton oscillation epoch, dark matter is produced resonantly for a suf…
On gravitational preheating
Oleg Lebedev, Jong-Hyun Yoon
We consider dark matter production during the inflaton oscillation epoch. It is conceivable that renormalizable interactions between dark matter and inflaton may be negligible. In…
Inflaton freeze-out
Oleg Lebedev, Thomas Nerdi, Timofey Solomko +1
We study the possibility that, after inflation, the inflaton reaches thermal equilibrium with the Standard Model thermal bath and eventually freezes-out in the non-relativistic reg…
Dark matter production and reheating via direct inflaton couplings: collective effects
Oleg Lebedev, Fedor Smirnov, Timofey Solomko +1
We study scalar dark matter production and reheating via renormalizable inflaton couplings, which include both quartic and trilinear interactions. These processes often depend cruc…
Challenges for Inflaton Dark Matter
Oleg Lebedev, Jong-Hyun Yoon
We examine an intriguing possibility that a single field is responsible for both inflation and dark matter, focussing on the minimal set-up where inflation is driven by a scalar co…
Is a WIMP explanation of the DAMA modulation effect still viable?
Gaurav Tomar, Sunghyun Kang, Stefano Scopel +1
We show that the weakly interacting massive particle (WIMP) scenario of proton-philic spin-dependent inelastic dark matter can still provide a viable explanation of the observed DA…
COSINE-100 and DAMA/LIBRA-phase2 in WIMP effective models
100 Collaboration, G. Adhikari, P. Adhikari +51
Assuming a standard Maxwellian for the WIMP velocity distribution, we obtain the bounds from null WIMP search results of 59.5 days of COSINE-100 data on the DAMA/LIBRA-phase2 modul…
Non-standard scaling laws of WIMP-nucleus interactions in WIMP direct detection
Sunghyun Kang, Stefano Scopel, Gaurav Tomar +1
Guided by the non-relativistic effective field theory of interactions between Weakly Interacting Massive Particles (WIMPs) of spin 1/2 and nuclei we study direct detection exclusio…
Effective models of WIMP Direct Detection in DAMA/LIBRA-phase2
Sunghyun Kang, Stefano Scopel, Gaurav Tomar +1
Since the DAMA/LIBRA collaboration released updated results from their search for the annual modulation signal expected from Dark Matter (DM) scattering in their NaI detectors, we…
Proton-philic spin-dependent inelastic Dark Matter (pSIDM) as a viable explanation of DAMA/LIBRA-phase2
Sunghyun Kang, Stefano Scopel, Gaurav Tomar +1
We show that the Weakly Interacting Massive Particle scenario of proton-philic spin-dependent inelastic Dark Matter (pSIDM) can still provide a viable explanation of the observed D…
On the sensitivity of present direct detection experiments to WIMP-quark and WIMP-gluon effective interactions: a systematic assessment and new model-independent approaches
Sunghyun Kang, Stefano Scopel, Gaurav Tomar +1
Assuming for Weakly Interacting Massive Particles (WIMPs) a Maxwellian velocity distribution in the Galaxy we provide an assessment of the sensitivity of existing Dark Matter (DM)…
Anapole Dark Matter after DAMA/LIBRA-phase2
Sunghyun Kang, Stefano Scopel, Gaurav Tomar +2
We re-examine the case of anapole dark matter as an explanation for the DAMA annual modulation in light of the DAMA/LIBRA-phase2 results and improved upper limits from other DM sea…
Present and projected sensitivities of Dark Matter direct detection experiments to effective WIMP-nucleus couplings
Sunghyun Kang, Stefano Scopel, Gaurav Tomar +1
Assuming for Weakly Interacting Massive Particles (WIMPs) a Maxwellian velocity distribution in the Galaxy we explore in a systematic way the relative sensitivity of an extensive s…
DAMA/LIBRA-phase2 in WIMP effective models
Sunghyun Kang, Stefano Scopel, Gaurav Tomar +1
The DAMA/LIBRA collaboration has recently released updated results from their search for the annual modulation signal expected from Dark Matter (DM) scattering in their NaI detecto…
Explaining DAMA with proton-philic spin-dependent inelastic Dark Matter (pSIDM): a frequentist analysis
Seong-Hyeong Kang, Stefano Scopel, Jong-Hyun Yoon
Proton-philic spin-dependent inelastic Dark Matter is a Weakly Inelastic Massive Particle scenario that can explain the DAMA yearly modulation effect in compliance with the constra…
Generalized spin-dependent WIMP-nucleus interactions and the DAMA modulation effect
Stefano Scopel, Jong-Hyun Yoon, KookHyun Yoon
Guided by non-relativistic Effective Field Theory (EFT) we classify the most general spin-dependent interactions between a fermionic Weakly Interacting Massive Particle (WIMP) and…
Effective scalar four-fermion interaction for Ge-phobic exothermic dark matter and the CDMS-II Silicon excess
Stefano Scopel, Jong-Hyun Yoon
We discuss within the framework of effective four-fermion scalar interaction the phenomenology of a Weakly Interacting Massive Particle (WIMP) Dirac Dark Matter candidate which is…