Search for heavy resonances decaying to a W or Z boson and a Higgs √ boson in the q q̄ (0) b b̄ final state in pp collisions at s = 13 TeV with the ATLAS detector

ATLAS CLLABORATION; F. MONTICELLI

PHYSICS LETTERS B

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2017

0370-2693

A search for heavy resonances decaying to a W or Z boson and a Higgs boson in the qq̄ (0) bb̄√final state is described. The search uses 36.1 fb −1 of proton?proton collision data at s = 13TeV collected by the ATLAS detector at the CERN Large Hadron Collider in 2015 and 2016.The data are in agreement with the Standard Model expectations, with the largest excessfound at a resonance mass of 3.0 TeV with a local (global) significance of 3.3 (2.1) σ. Theresults are presented in terms of constraints on a simplified model with a heavy vector triplet.Upper limits are set on the production cross-section times branching ratio for resonancesdecaying to a W (Z) boson and a Higgs boson, itself decaying to bb̄, in the mass rangebetween 1.1 and 3.8 TeV; the limits range between 83 and 1.6 fb (77 and 1.1 fb) at 95%confidence level