Parity-violating trispectrum from Chern-Simons gravity
C Creque-Sarbinowski, S Alexander… - … of Cosmology and …, 2023 - iopscience.iop.org
A potential source for parity violation in the Universe is inflation. The simplest inflationary
models have two fields: the inflaton and graviton, and the lowest-order parity-violating …
models have two fields: the inflaton and graviton, and the lowest-order parity-violating …
Chiral Nelson-Barr models: Quality and cosmology
It was recently shown that domain walls from the spontaneous breaking of CP symmetry are
exactly stable, and must be inflated away to recover a viable cosmology. We investigate the …
exactly stable, and must be inflated away to recover a viable cosmology. We investigate the …
Impact of extragalactic foregrounds on internal delensing of the CMB -mode polarization
A Baleato Lizancos, S Ferraro - Physical Review D, 2022 - APS
The search for primordial B-mode polarization of the cosmic microwave background (CMB)
is limited by the sample variance of B-modes produced at later times by gravitational …
is limited by the sample variance of B-modes produced at later times by gravitational …
[HTML][HTML] Post-Inflationary Production of Dark Matter after Inflection Point Slow Roll Inflation
We explore a feasible model that combines near-inflection point small-field slow roll
inflationary scenario driven by single scalar inflaton with the production of non-thermal …
inflationary scenario driven by single scalar inflaton with the production of non-thermal …
Non-thermal moduli production during preheating in α-attractor inflation models
K Alam, M Bastero-Gil, K Dutta… - Journal of Cosmology …, 2023 - iopscience.iop.org
Production of gravitationally coupled light moduli fields must be suppressed in the early
universe so that its decay products do not alter Big Bang Nucleosynthesis (BBN) predictions …
universe so that its decay products do not alter Big Bang Nucleosynthesis (BBN) predictions …
Minimizing the tensor-to-scalar ratio in single-field inflation models
WJ Wolf - Physical Review D, 2024 - APS
We revisit a class of simple single-field inflation models and demonstrate that they can
readily produce a negligible tensor/scalar ratio r. Motivated by recent work suggesting the …
readily produce a negligible tensor/scalar ratio r. Motivated by recent work suggesting the …
Novel cosmological tests from combining galaxy lensing and the polarized Sunyaev-Zel'dovich effect
OHE Philcox, MC Johnson - Physical Review D, 2022 - APS
The polarized Sunyaev-Zel'dovich (pSZ) effect is sourced by the Thomson scattering of
cosmic microwave background (CMB) photons from distant free electrons and yields a novel …
cosmic microwave background (CMB) photons from distant free electrons and yields a novel …
ABMB: Deep Delensing Assisted Likelihood-Free Inference from CMB Polarization Maps
The existence of a cosmic background of primordial gravitational waves (PGWB) is a robust
prediction of inflationary cosmology, but it has so far evaded discovery. The most promising …
prediction of inflationary cosmology, but it has so far evaded discovery. The most promising …
Origin of neutrino masses, dark matter, leptogenesis, and inflation in a seesaw model with triplets
P Das, N Khan - Physical Review D, 2023 - APS
We consider a new physics model, where the Standard Model (SM) is extended by
hyperchargeless Y= 0 triplet fermions and a Higgs triplet with hypercharge Y= 2. The first two …
hyperchargeless Y= 0 triplet fermions and a Higgs triplet with hypercharge Y= 2. The first two …
Implementation and testing of a 100 mK ADR backed by a 4He/3He sorption fridge for CMB-S4 project
CMB-S4 is a ground-based experiment that will use large-format bolometer arrays to map
Cosmic Microwave Background (CMB) polarization with unprecedented sensitivity, including …
Cosmic Microwave Background (CMB) polarization with unprecedented sensitivity, including …