Studying the underlying event in Drell-Yan and high transverse momentum jet production at the Tevatron

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URI: http://hdl.handle.net/10902/1964
ISSN: 1550-7998
ISSN: 1550-2368
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Autoría
Aaltonen, Timo Antero; Álvarez González, Bárbara; Casal Laraña, Bruno; Cuevas Maestro, Francisco Javier; Gómez Gramuglio, GervasioAutoridad Unican; Rodrigo Anoro, TeresaAutoridad Unican; Ruiz Jimeno, AlbertoAutoridad Unican; Scodellaro, LucaAutoridad Unican; Vila Álvarez, Iván Autoridad Unican; Vilar Cortabitarte, RocíoAutoridad Unican
Fecha
2010-08-02
Derechos
© 2010 The American Physical Society
Publicado en
Physical Review D - Particles, Fields, Gravitation and Cosmology, 2010, 82(3), 034001
Editorial
American Physical Society
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Resumen/Abstract
We study the underlying event in proton-antiproton collisions by examining the behavior of charged particles produced in association with a large transverse momentum jet (∼2.2  fb-1) or with a Drell-Yan lepton pair (∼2.7  fb-1) in the Z-boson mass region [70<M(pair)<110  GeV/c2] as measured by CDF at 1.96 TeV center-of-mass energy. We use the direction of the lepton pair or the leading jet in each event to define regions of η-ϕ space that are sensitive to the modeling of the underlying event. The data are corrected to the particle level to remove detector effects and are then compared with several QCD Monte Carlo models.
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