Search for anomalous electroweak production of WW/WZ in association with a high-mass dijet system in pp collisions at √s=8  TeV 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 The ATLAS Collaboration, (2017) Search for anomalous electroweak production of WW/WZ in association with a high-mass dijet system in pp collisions at √s=8  TeV with the ATLAS detector. Physical Review D, 95 (3). 032001. ISSN 2470-0010

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Abstract

A search is presented for anomalous quartic gauge boson couplings in vector-boson scattering. The data for the analysis correspond to 20.2fb−1 of √s=8 TeV pp collisions and were collected in 2012 by the ATLAS experiment at the Large Hadron Collider. The search looks for the production of WW or WZ boson pairs accompanied by a high-mass dijet system, with one W decaying leptonically and a W or Z decaying hadronically. The hadronically decaying W/Z is reconstructed as either two small-radius jets or one large-radius jet using jet substructure techniques. Constraints on the anomalous quartic gauge boson coupling parameters α 4 and α5 are set by fitting the transverse mass of the diboson system, and the resulting 95% confidence intervals are −0.024 < α4 < 0.030 and −0.028 < α5 < 0.033.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Research Centres and Groups: Experimental Particle Physics Research Group
Subjects: Q Science > QC Physics
Depositing User: Billy Wichaidit
Date Deposited: 14 Jul 2017 10:00
Last Modified: 14 Jul 2017 10:07
URI: http://sro.sussex.ac.uk/id/eprint/69260

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