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

New Member

New Member in the ATLAS group

November 23, 2021

Jack Harrison has just joined the ATLAS group as a PhD student with an INPhINIT Fellowship.

Instrumentation Milestone

HGTD project milestone achieved

October 6, 2021

Wafers with the ALTIROC2 chip were received this week. This is a major milestone for the HGTD project.R. Casanova played a leading role in the design of the digital part of the chip and its verification.

New Position

Martine Bosman elected as a Fellow of the European Academy of Sciences

October 6, 2021

Martine Bosman was recently elected as a Fellow of the European Academy of Sciences (EurASc). EurASc is a fully independent international association of distinguished scholars that aims to recognize and elect to its membership the best European scientists with a vision for Europe as a whole, transcending national borders, and with the aims of strengthening European science and scientific cooperation.