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Measurement of the cross-section of high transverse momentum vector bosons reconstructed as single jets and studies of jet substructure in pp collisions at vs = 7 TeV with the ATLAS detector

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posted on 2023-06-08, 21:41 authored by Alessandro CerriAlessandro Cerri, Antonella De SantoAntonella De Santo, Z J Grout, C T Potter, Fabrizio SalvatoreFabrizio Salvatore, I Santoyo Castillo, Mark SuttonMark Sutton, Iacopo Vivarelli, others (ATLAS collaboration)
This paper 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 vs = 7 TeV;{\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.

Funding

Consolidated Grant; G0927; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/K001329/1

History

Publication status

  • Published

File Version

  • Published version

Journal

New Journal of Physics

ISSN

1367-2630

Publisher

IOP Science

Volume

16

Page range

113013

Department affiliated with

  • Physics and Astronomy Publications

Notes

Part of the ATLAS collaboration

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2015-07-17

First Open Access (FOA) Date

2015-07-17

First Compliant Deposit (FCD) Date

2015-07-17

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