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

Allbrooke, B M M, Asquith, L, Cerri, A, Chavez Barajas, C A, De Santo, A, Salvatore, F, Santoyo Castillo, I, Suruliz, K, Sutton, M R, Vivarelli, I and and, The ATLAS Collaboration (2017) Search for heavy resonances decaying to a W or Z boson and a Higgs boson in the q¯ q(')b¯ b final state in pp collisions at √s=13TeV with the ATLAS detector. Physics Letters B, 774. pp. 494-515. ISSN 0370-2693

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Abstract

A search for heavy resonances decaying to a W or Z boson and a Higgs boson in the q¯q(ͬ)b¯b final state is described. The search uses 36.1fb−1 of proton–proton collision data at √s=13TeVcollected 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 excess found at a resonance mass of 3.0 TeV with a local (global) significance of 3.3 (2.1)σ. The results 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 resonances decaying to a W(Z) boson and a Higgs boson, itself decaying to b¯b, in the mass range between 1.1 and 3.8TeVat 95% confidence level; the limits range between 83 and 1.6fb (77 and 1.1fb) at 95% confidence level.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics
Depositing User: Billy Wichaidit
Date Deposited: 24 Nov 2017 14:48
Last Modified: 24 Nov 2017 14:48
URI: http://sro.sussex.ac.uk/id/eprint/71558

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Project NameSussex Project NumberFunderFunder Ref
ATLASG0275STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCILST/I006048/1