Measurement of the cross-section of high transverse momentum vector bosons reconstructed as single jets and studies of jet substructure in pp collisions at $$\sqrt{s}$$ = 7 TeV with the ATLAS detector
This article presents a measurement of the cross-section for high transverse momentum W and Z bosons produced in pp collisions and decaying to all-hadronic final states. The data used in the analysis were recorded by the ATLAS detector at the CERN Large Hadron Collider at a centre-of-mass energy of $$\sqrt{s}=7\;{\rm Te}{\rm V}$$ and correspond to an integrated luminosity of $$4.6\;{\rm f}{{{\rm b}}^{-1}}$$. The measurement is performed by reconstructing the boosted W or Z bosons in single jets. The reconstructed jet mass is used to identify the W and Z bosons, and a jet substructure method based on energy cluster information in the jet centre-of-mass frame is used to suppress the large multi-jet background. The cross-section for events with a hadronically decaying W or Z boson, with transverse momentum $${{p}_{{\rm T}}}\gt 320\;{\rm Ge}{\rm V}$$ and pseudorapidity $$|\eta |\lt 1.9$$, is measured to be $${{\sigma }_{W+Z}}=8.5\pm 1.7$$ pb and is compared to next-to-leading-order calculations. The selected events are further used to study jet grooming techniques.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Contributing Organization:
- The ATLAS Collaboration; ATLAS Collaboration
- Grant/Contract Number:
- AC02-05CH11231; AC02-06CH11357; SC00112704; AC03-76SF00515
- OSTI ID:
- 1523988
- Alternate ID(s):
- OSTI ID: 1223359; OSTI ID: 1223376
- Journal Information:
- New Journal of Physics, Vol. 16, Issue 11; ISSN 1367-2630
- Publisher:
- IOP PublishingCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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