Artículo
Measurement of hard double-parton interactions in W->lv+ 2 jet events at sqrt(s)=7 TeV with the ATLAS detector
Aad, G.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdelalim, A.A.; González Silva, María Laura
; Otero y Garzon, Gustavo Javier
; Piegaia, Ricardo Nestor
; Romeo, G.; Anduaga, Xabier Sebastian
; Dova, Maria Teresa
; Monticelli, Fernando Gabriel
; Tripiana, Martin Fernando
; Zhu, Y.; Zhuang, X.; Zhuravlov, V.; Zieminska, D.; Zimine, N. I.; Zimmermann, R.; Zimmermann, C.; Zimmermann, S.; Ziolkowski, M.; Zitoun, R.; Živković, L.; Zmouchko, V. V.; Zobernig, G.; Zoccoli, A.; Zsenei, A; Nedden, M. zur; Zutshi, V.; Zwalinski, L.; The ATLAS Collaboration
; Otero y Garzon, Gustavo Javier
; Piegaia, Ricardo Nestor
; Romeo, G.; Anduaga, Xabier Sebastian
; Dova, Maria Teresa
; Monticelli, Fernando Gabriel
; Tripiana, Martin Fernando
; Zhu, Y.; Zhuang, X.; Zhuravlov, V.; Zieminska, D.; Zimine, N. I.; Zimmermann, R.; Zimmermann, C.; Zimmermann, S.; Ziolkowski, M.; Zitoun, R.; Živković, L.; Zmouchko, V. V.; Zobernig, G.; Zoccoli, A.; Zsenei, A; Nedden, M. zur; Zutshi, V.; Zwalinski, L.; The ATLAS Collaboration
Fecha de publicación:
01/2013
Editorial:
IOP Publishing
Revista:
New Journal of Physics
ISSN:
1367-2630
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The production of W bosons in association with two jets in proton-proton collisions at a centre-of-mass energy of sqrt(s)=7 TeV has been analysed for the presence of double-parton interactions using data corresponding to an integrated luminosity of 36/pb, collected with the ATLAS detector at the LHC. The fraction of events arising from double-parton interactions, fDP(D) has been measured through the momentum balance between the two jets and amounts to fDP(D) = 0.08 +- 0.01 (stat.) +- 0.02 (sys) for jets with transverse momentum PT > 20 GeV and rapidity |y|<2.8. This corresponds to a measurement of the effective area parameter for hard double-parton interactions of sigma_eff = 15 +- 3 (stat.) +5 -3 (sys.) mb.
Palabras clave:
Atlas
,
Hard-Parton
,
Lhc
,
Measurements
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471.7Kb
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Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción:
Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
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Articulos de INST.DE FISICA LA PLATA
Articulos de INST.DE FISICA LA PLATA
Citación
Aad, G.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdelalim, A.A.; et al.; Measurement of hard double-parton interactions in W->lv+ 2 jet events at sqrt(s)=7 TeV with the ATLAS detector; IOP Publishing; New Journal of Physics; 15; 1-2013; 33038-33061
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