My paper with Jun-Qian Jiang, William Giarè, Stefano Gariazzo, Maria Giovanna Dainotti, Eleonora Di Valentino, Olga Mena, Davide Pedrotti, and Simony Santos da Costa, where we investigate the status of (positive) neutrino mass cosmology after the latest DESI measurements (see this earlier news item), has been accepted for publication in JCAP! The paper has undergone has a substantial revision, which resulted in the addition of several appendices clarifying various technical aspects of the analysis (e.g. cosmology-internal tension, impact of PR4 likelihoods, and H0 versus MB prior among others), as well as an additional useful plot, and useful discussions on the neutrino mass ordering: however, the main results are unaltered, and are now more robust. You can read the preprint version of the paper on arXiv: 2407.18047.
Science News interview
I was recently interviewed by Emily Conover for Science News on the puzzling status of cosmological neutrino mass constraints after DESI, with part of the discussion motivated by my recent paper on the topic. It was very nice to chat with an amazing and tremendously well-known journalist such as Emily (whose pieces I highly recommend)! Her extremely nice piece appeared today and, besides from myself, contains quotes from a number of well-known scientists, including Licia Verde, Dan Green, Willem Elbers, as well as my friends and colleagues Miguel Escudero and Eleonora Di Valentino. You can read the full article here:
www.sciencenews.org/article/neutrino-mass-phenomenon-cosmology
I had great fun talking to Emily, and I hope you enjoy the interview!
Post-DESI neutrino cosmology
Another paper out today! Led by Jun-Qian Jiang and William Giarè (both of whom did a huge amount of work), and together with Stefano Gariazzo, Maria Giovanna Dainotti, Eleonora Di Valentino, Olga Mena, Davide Pedrotti, and Simony Santos da Costa, we investigate the status of (positive) neutrino mass cosmology after the latest DESI measurements. We find very tight upper limits on the sum of the neutrino masses, a strong preference for the normal ordering, and a significant tension with terrestrial observations, all of which we carefully quantify. We also studied the impact of allowing the dark energy component to be non-phantom, which makes all the previous conclusions somewhat stronger, and highlights an interesting synergy between laboratory experiments aimed at determining the neutrino mass ordering, and the nature of dark energy. You can read our results in the preprint we just posted on arXiv: 2407.18047.
