Artículo
Measurement of the prompt J/ψ √ pair production cross-section in pp collisions at s = 8 TeV with the ATLAS detector
Aaboud, M.; Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Alconada Verzini, María Josefina
; Alonso, Francisco
; Arduh, Francisco Anuar
; Dova, Maria Teresa
; Hoya, Joaquín
; Monticelli, Fernando Gabriel
; Wahlberg, Hernan Pablo
; Bossio Sola, Jonathan David
; Otero y Garzon, Gustavo Javier
; Piegaia, Ricardo Nestor
; Sacerdoti, Sabrina
; Zhukov, K.; Zibell. A.; Zieminska, D.; Zimine, N. I.; Zimmermann, C.; Zimmermann, S.; Zinonos, Z.; Zinser, M.; Ziolkowski, M.; Živković, L.; Zobernig, G.; Zoccoli, A.; Nedden, M. zur; Zurzolo, G.; Zwalinski, L.; The ATLAS Collaboration
; Alonso, Francisco
; Arduh, Francisco Anuar
; Dova, Maria Teresa
; Hoya, Joaquín
; Monticelli, Fernando Gabriel
; Wahlberg, Hernan Pablo
; Bossio Sola, Jonathan David
; Otero y Garzon, Gustavo Javier
; Piegaia, Ricardo Nestor
; Sacerdoti, Sabrina
; Zhukov, K.; Zibell. A.; Zieminska, D.; Zimine, N. I.; Zimmermann, C.; Zimmermann, S.; Zinonos, Z.; Zinser, M.; Ziolkowski, M.; Živković, L.; Zobernig, G.; Zoccoli, A.; Nedden, M. zur; Zurzolo, G.; Zwalinski, L.; The ATLAS Collaboration
Fecha de publicación:
12/2016
Editorial:
Springer
Revista:
European Physical Journal C: Particles and Fields
ISSN:
1434-6044
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The production of two prompt J/ψ mesons, each with transverse momenta p T > 8.5 GeV√and rapidity |y| < 2.1, is studied using a sample of proton-proton collisions at s = 8 TeV,corresponding to an integrated luminosity of 11.4 fb −1 collected in 2012 with the ATLASdetector at the LHC. The differential cross-section, assuming unpolarised J/ψ production,is measured as a function of the transverse momentum of the lower-p T J/ψ meson, di-J/ψp T and mass, the difference in rapidity between the two J/ψ mesons, and the azimuthalangle between the two J/ψ mesons. The fraction of prompt pair events due to double partonscattering is determined by studying kinematic correlations between the two J/ψ mesons.The total and double parton scattering cross-sections are compared with predictions. Theeffective cross-section of double parton scattering is measured to be σ eff = 6.3 ± 1.6(stat) ±1.0(syst) mb.
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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(IFLP)
Articulos de INST.DE FISICA LA PLATA
Articulos de INST.DE FISICA LA PLATA
Citación
Aaboud, M.; Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; et al.; Measurement of the prompt J/ψ √ pair production cross-section in pp collisions at s = 8 TeV with the ATLAS detector; Springer; European Physical Journal C: Particles and Fields; C77; 76; 12-2016; 1-53
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