Ramon Miquel Pascual

Ramon Miquel Pascual

Institut de Física d'Altes Energies

Experimental Sciences & Mathematics

Born in 1962 in Gelida (Barcelona). Graduated in physics in 1985 at Universitat de Barcelona (UB). PhD in experimental high-energy physics in 1989 at Universitat Autònoma de Barcelona. Postdoctoral stay at CERN, Geneva (Switzerland) from 1991 to 1996, mostly working on the ALEPH experiment at the LEP accelerator. "Professor Titular" at UB, 1997-2000. Moved to Lawrence Berkeley National Laboratory, Berkeley (USA) as a Career Staff Scientist in 2001, where started a transition towards observational cosmology. Since 2006, ICREA Research Professor at Institut de Física d'Altes Energies (IFAE). Associate Director of IFAE from 2008 to 2014. Director from 2015 to 2022. Working on the "Dark Energy Survey" (DES), "Dark Energy Spectroscopic Instrument" (DESI), and "Legacy Survey of Space and Time" (LSST) projects, trying to shed light into the nature of the "dark energy" that is causing the current acceleration of the expansion of the Universe.

Research interests

I am an experimental particle physicist trying to understand the ultimate building blocks of the Universe and their interactions, through both experiments involving particle accelerators and astronomical observations. Recently, my work has been mostly devoted to planning instruments  and performing observations to try to unveil the nature of the so-called "dark-energy" component of the Universe, which accounts for about 70% of the matter-energy of the Universe, counters the attractive effect of gravity on all other forms of matter and energy, and drives the current accelerated expansion of the Universe.

Selected publications

- Adame, AG et al. (DESI Collaboration) 2025, 'DESI 2024 IV: Baryon Acoustic Oscillations from the Lyman alpha forest', JCAP 01, 124.
- Adame, AG et al. (DESI Collaboration) 2025, 'DESI 2024 VI: cosmological constraints from the measurements of baryon acoustic oscillations', JCAP 02, 021.
- Abdul Karim, M et al. (DESI Collaboration) 2025, 'DESI DR2 results. I. Baryon acoustic oscillations from the Lyman alpha forest', PRD 112, 083514
- Abdul Karim, M et al. (DESI Collaboration) 2025, 'DESI DR2 results. II. Measurements of baryon acoustic oscillations and cosmological constraints', PRD 112, 083515

Selected research activities

- Coordinator of the Spanish "Plan Complementario de Astrofísica y Física de Altas Energías", funded with 40M€
- Member of the Board of the Division of High Energy and Particle Physics of the European Physical Society (EPS-HEPP)
- Chair of the Membership Committee of the Dark Energy Spectroscopic Instrument (DESI) Collaboration
- Spanish representative in the Management Committee of the Dark Energy Survey (DES) Collaboration, Chair of its Builder Committee, Member on its Publications Board
- Adviser of the PhD thesis "Testing the ΛCDM Model: Cross-Correlations of Cosmic Voids and CMB Lensing", defended by Umut Emek Demirbozan in January 2025.