__smbhome.uscs.susx.ac.uk_bw233_Desktop_SRO_SRO - ATLAS_Return from Sickness_10.1007_JHEP01(2018)063.pdf (760.4 kB)
Measurement of the cross-section for producing a W boson in association with a single top quark in pp collisions at vs=13 TeV with ATLAS
journal contribution
posted on 2023-06-09, 12:05 authored by Benedict AllbrookeBenedict Allbrooke, Lily AsquithLily Asquith, Alessandro CerriAlessandro Cerri, C A Chavez Barajas, Antonella De SantoAntonella De Santo, Fabrizio SalvatoreFabrizio Salvatore, I Santoyo Castillo, K Suruliz, Mark SuttonMark Sutton, Iacopo Vivarelli, The ATLAS CollaborationThe inclusive cross-section for the associated production of a W boson and top quark is measured using data from proton-proton collisions at vs=13 TeV. The dataset corresponds to an integrated luminosity of 3.2 fb-1, and was collected in 2015 by the ATLAS detector at the Large Hadron Collider at CERN. Events are selected requiring two opposite sign isolated leptons and at least one jet; they are separated into signal and control regions based on their jet multiplicity and the number of jets that are identified as containing b hadrons. The W t signal is then separated from the tt¯ background using boosted decision tree discriminants in two regions. The cross-section is extracted by fitting templates to the data distributions, and is measured to be s W t ?=?94?±?10(stat.) -?22 +?28 (syst.)?±?2(lumi.) pb. The measured value is in good agreement with the SM prediction of stheory = 71.7±1.8 (scale)± 3.4 (PDF) pb [1].
Funding
ATLAS; G0275; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/I006048/1
History
Publication status
- Published
File Version
- Published version
Journal
Journal of High Energy PhysicsISSN
1126-6708Publisher
Institute of PhysicsExternal DOI
Issue
63Volume
2018Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2018-02-13First Open Access (FOA) Date
2018-02-13First Compliant Deposit (FCD) Date
2018-02-13Usage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC