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Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at (Formula presented.)

Aad, G.
•
Abbott, B.
•
Abdallah, J.
altro
Zwalinski, L.
2015
  • journal article

Periodico
THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS
Abstract
The mass of the top quark is measured in a data set corresponding to 4.6 (Formula presented.) of proton–proton collisions with centre-of-mass energy (Formula presented.) TeV collected by the ATLAS detector at the LHC. Events consistent with hadronic decays of top–antitop quark pairs with at least six jets in the final state are selected. The substantial background from multijet production is modelled with data-driven methods that utilise the number of identified $$b$$b-quark jets and the transverse momentum of the sixth leading jet, which have minimal correlation. The top-quark mass is obtained from template fits to the ratio of three-jet to dijet mass. The three-jet mass is calculated from the three jets produced in a top-quark decay. Using these three jets the dijet mass is obtained from the two jets produced in the W boson decay. The top-quark mass obtained from this fit is thus less sensitive to the uncertainty in the energy measurement of the jets. A binned likelihood fit yields a top-quark mass of (Formula presented.).
DOI
10.1140/epjc/s10052-015-3373-1
WOS
WOS:000355671300001
Archivio
http://hdl.handle.net/11390/1096290
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84928745950
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928745950&partnerID=40&md5=224878dd01e05c85ae76ac1bed82c540
Diritti
metadata only access
Soggetti
  • ATLAS

  • Fully hadronic

  • LHC

  • Proton–proton collisi...

  • Top quark

  • Top-quark ma

  • Physics and Astronomy...

  • Engineering (miscella...

Scopus© citazioni
9
Data di acquisizione
Jun 7, 2022
Vedi dettagli
Web of Science© citazioni
15
Data di acquisizione
Mar 27, 2024
Visualizzazioni
4
Data di acquisizione
Apr 19, 2024
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