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


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

Physical Review Letters, cilt.122, sa.23, 2019 (SCI-Expanded, Scopus) identifier identifier identifier identifier

Özet

© 2019 CERN.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(-)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 s=13 TeV at the LHC. In combination with the results at 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).