540 citations · 580 across the 11 of their papers we have counts for
11 papers
What could an emerging Big Bang Nucleosynthesis discrepancy be hinting at?
Vivian Poulin, Julien Froustey, Cyril Pitrou +1
The latest measurement of the primordial deuterium abundance is in tension with several state-of-the-art predictions of standard Big Bang nucleosynthesis (BBN), when usin…
Addressing leakage and mode suppression in angular power spectrum estimation for gravitational-wave backgrounds using pulsar timing arrays
Deepali Agarwal, Joseph D. Romano, Yacine Ali-Haïmoud +1
Mapping gravitational-wave background (GWB) anisotropy with pulsar timing arrays (PTAs) is affected by harmonic-space mode suppression and mode coupling arising from an array's non…
Impact of ACT DR6 and DESI DR2 for Early Dark Energy and the Hubble tension
Vivian Poulin, Tristan L. Smith, Rodrigo Calderón +1
The data release six of the Atacama Cosmology Telescope (ACT DR6) and the second data release from the Dark Energy Spectroscopic Instrument (DESI DR2) recently became available. In…
Predictions for new physics in the CMB damping tail
Tristan L. Smith, Nils Schöneberg
Ever since the Planck satellite measured the the cosmic microwave background (CMB) down to arcminute angular scales, the mismatch between the CMB-inferred value of the Hubble const…
Towards alleviating the and tensions with Early Dark Energy - Dark Matter drag
Théo Simon, Tal Adi, José Luis Bernal +3
Early dark energy, an additional component of dark energy active in the decade of redshift before recombination, has emerged as one of the most effective models at reducing the $H_…
On the implications of the `cosmic calibration tension' beyond and the synergy between early- and late-time new physics
Vivian Poulin, Tristan L. Smith, Rodrigo Calderón +1
The `cosmic calibration tension' is a discrepancy between the cosmological distance ladder built from baryonic acoustic oscillations (BAO) calibrated by the Planck/CDM so…
Cosmological Consequences of Unconstrained Gravity and Electromagnetism
Loris Del Grosso, David E Kaplan, Tom Melia +3
Motivated by the quantum description of gauge theories, we study the cosmological effects of relaxing the Hamiltonian and momentum constraints in general relativity and Gauss' law…
Procoli: Profiles of cosmological likelihoods
Tanvi Karwal, Yashvi Patel, Alexa Bartlett +3
Frequentist profile likelihoods have seen a resurgence in cosmology, offering an alternative to Bayesian methods as they can circumvent the impact of prior-volume effects. This pap…
Exact treatment of weak dark matter-baryon scattering for linear-cosmology observables
Yacine Ali-Haïmoud, Suroor Seher Gandhi, Tristan L. Smith
Elastic scattering of dark matter (DM) particles with baryons induce cosmological signals that may be detectable with modern or future telescopes. For DM-baryon scattering cross se…
Current small-scale CMB constraints to axion-like early dark energy
Tristan L. Smith, Vivian Poulin
The SPT-3G 2018 TT/TE/EE cosmic microwave background (CMB) data set (temperature and polarization) is used to place constraints on an axion-like model of early dark energy (EDE). T…
Cosmology Intertwined II: The Hubble Constant Tension
Eleonora Di Valentino, Luis A. Anchordoqui, Ozgur Akarsu +90
The current cosmological probes have provided a fantastic confirmation of the standard Cold Dark Matter cosmological model, that has been constrained with unprecedented accurac…