New Atlas Publication

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.


Latest Group News

Collaboration Meeting

ATLAS physics and performance week

May 5, 2021

The ATLAS physics and performance week is taking place this week. Aurelio Juste is giving the plenary talk “Implication of anomalies (muon g-2, R(K), etc.) for the Exotics program

New Publication

New ATLAS Pixels Group Publication

April 28, 2021

The Paper “Novel 3D Pixel Sensors for the Upgrade of the ATLAS Inner Tracker” has been published in Frontiers for Physics.

New Appointment

Sebastian Grinstein endorsed as deputy Project Leader of the ATLAS HGTD

April 28, 2021

Sebastian Grinstein has been endorsed as deputy Project Leader of the High Granularity Timing Detector (HGTD) of ATLAS by the Institute Board.