Measurement of the top quark mass in the all-hadronic mode at CDF

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URI: https://hdl.handle.net/10902/28369
ISSN: 0370-2693
ISSN: 1873-2445
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Autoría
Aaltonen, Timo Antero; Álvarez González, Bárbara; Casal Laraña, Bruno; Cuevas Maestro, Francisco Javier; Gómez Gramuglio, GervasioAutoridad Unican; Palencia Cortezón, José Enrique; Rodrigo Anoro, TeresaAutoridad Unican; Ruiz Jimeno, AlbertoAutoridad Unican; Scodellaro, LucaAutoridad Unican; Vila Álvarez, Iván Autoridad Unican; Vilar Cortabitarte, RocíoAutoridad Unican; Vizán García, Jesús ManuelAutoridad Unican
Fecha
2012-07
Derechos
Attribution 4.0 International. ©2012 Elsevier B.V. Open access under CC BY license
Publicado en
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2012, 714(1), 24-31
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Elsevier
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Palabras clave
CDF
Tevatron
Top quark mass
All-hadronic channel
Jet energy scale
Likelihood fit
Physics
Resumen/Abstract
A measurement of the top quark mass (Mtop) in the all-hadronic decay channel is presented. It uses 5.8 fb?1 of pp¯ data collected with the CDF II detector at the Fermilab Tevatron Collider. Events with six to eight jets are selected by a neural network algorithm and by the requirement that at least one of the jets is tagged as a b-quark jet. The measurement is performed with a likelihood fit technique, which simultaneously determines Mtop and the jet energy scale (JES) calibration. The fit yields a value of Mtop = 172.5 ± 1.4(stat) ± 1.0(JES) ± 1.1(syst) GeV/c2.
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Attribution 4.0 International. ©2012 Elsevier B.V. Open access under CC BY licenseExcepto si se señala otra cosa, la licencia del ítem se describe como Attribution 4.0 International. ©2012 Elsevier B.V. Open access under CC BY license