Combination of Searches for Invisible Higgs Boson Decays with the ATLAS Experiment

Aaboud M., Aad G., Abbott B., Abbott D. C. , Abdinov O., Abud A. A. , ...Daha Fazla

PHYSICAL REVIEW LETTERS, cilt.122, 2019 (SCI İndekslerine Giren Dergi) identifier identifier identifier


Dark matter particles, if sufficiently light, may be produced in decays of the Higgs boson. This Letter presents a statistical combination of searches for H -> invisible decays where H is produced according to the standard model via vector boson fusion, Z(ll)H, and W/Z(had)H, all performed with the ATLAS detector using 36.1 fb(-1) of pp collisions at a center-of-mass energy of root s = 13 TeV at the LHC. In combination with the results at root s = 7 and 8 TeV, an exclusion limit on the H -> invisible branching ratio of 0.26(0.17(-0.05)(+0.07)) at 95% confidence level is observed (expected).