New Paper

New Gravitational Waves paper

Search for a scalar induced stochastic gravitational wave background in the third LIGO-Virgo observing run ” by Alba Romero-Rodríguez, Mario Martínez, Oriol Pujolàs, et al. has been selected as PRL Editors’ Suggestion.

This paper presents upper limits on the formation of primordial black holes from inflationary fluctuations accompanied by a scalar induced gravitational wave background in the early universe, leading to stochastic gravitational wave signals in LIGO/Virgo. The results are based on the analysis of the full LIGO/Virgo data to date. The resulting constraints on the primordial black hole formation are stronger than those arising from big bang nucleosynthesis or cosmic microwave background observations. In addition, we find that the constraints from LIGO and Virgo, at their design sensitivity, and from the Einstein Telescope can compete with those related to the abundance of the formed primordial black holes.

Latest Group News

New Paper

New MultiMessenger paper

January 19, 2022

Quantum gravity phenomenology at the dawn of the multi-messenger era — A review ” by Manel Martínez, Daniel Kerszberg, Diego Blas, Mario Martínez and others has been accepted for publication in Progress in Particle and Nuclear Physics. This paper is a review by the world experts on QG phenomenology, working together in the framework of the Quantum Gravity in the MultiMessenger era (QGMM) COST Action.


New Multi-Messenger Paper

November 17, 2021

“Quantum gravity phenomenology at the dawn of the multi-messenger era – A review” has been uploaded to arXiv . Members of the Gamma-ray, Gravitational Waves and Theory group are among the authors: Diego Blas, Merve Colak, Daniel Kersberg, Manel Martínez, Mario Martínez.


IFAE at EPS-HEP 2021

July 28, 2021

The European Physical Society conference on high energy physics 2021 (EPS-HEP 2021 ), one of the most important conferences in HEP of the year, is taking place online this week. Three IFAE groups are participating: