Search for Higgs boson decays into two new low-mass spin-0 particles in the 4b channel with the ATLAS detector using pp collisions at √s=13 TeV has been submitted to Phys. Rev. D.
This paper describes a search for beyond the Standard Model decays of the Higgs boson into a pair of new spin-0 particles (a) subsequently decaying into b-quark pairs, H->aa->(bb)(bb). The search targets the production mode where the Higgs boson is produced in association with a Z boson, and focuses on the challenging mass regime of 15<m(a)<30 GeV, which yields collimated a->bb decay products requiring the development of a novel strategy for their identification.
From the IFAE-ATLAS team, Aurelio Juste has contributed to the analysis.
#cientifiques
Tamara Vázquez Schröder participates in the launch of 'científiques 2026'
January 28, 2026
Tamara Vázquez Schröder, researcher in the Collider Physics Group at the Institut de Física d’Altes Energies (IFAE), took part in the launch event of the 2026 edition of the #científiques programme, held on 27 January 2026 at the UAB Casa Convalescència in Barcelona. The event marked the start of this year’s activities ahead of the International Day of Women and Girls in Science, celebrated on 11 February.