Article ISI SCOPUS
JOURNAL OF HIGH ENERGY PHYSICS  (2014)

Measurement of the production cross section of prompt j/psi mesons in association with a W (+/-) boson in pp collisions root s=7 TeV with the ATLAS detector

Aad G.; Abajyan T.; Abbott B.; Abdallah J.; Khalek, SA; Abdinov O.; Aben, R.; Abi, B.; Abolins M.; Abouzeid, OS; Abramowicz H.; Abreu H.; Abulaiti, Y; Adamczyk, L; Adelman J.; et. al.

Abstract

The process pp -> W (+/-) J/psi provides a powerful probe of the production mechanism of charmonium in hadronic collisions, and is also sensitive to multiple parton interactions in the colliding protons. Using the 2011 ATLAS dataset of 4.5 fb(-1) of root s= 7 TeV pp collisions at the LHC, the first observation is made of the production of W (+/-) + prompt J/psi events in hadronic collisions, using W (+/-) -> mu nu(mu) and J/psi -> mu(+)mu(-) center dot A yield of W (+/-) + prompt J/psi events is observed, with a statistical significance of 5.1 sigma. The production rate as a ratio to the inclusive W (+/-) boson production rate is measured, and the double parton scattering contribution to the cross section is estimated.

Más información

Título según WOS: Measurement of the production cross section of prompt j/psi mesons in association with a W (+/-) boson in pp collisions root s=7 TeV with the ATLAS detector
Título según SCOPUS: Measurement of the production cross section of prompt J/? mesons in association with a W± boson in pp collisions at p s = 7 TeV with the ATLAS detector
Título de la Revista: JOURNAL OF HIGH ENERGY PHYSICS
Volumen: 2014
Número: 4
Editorial: Springer
Fecha de publicación: 2014
Idioma: English
DOI:

10.1007/JHEP04(2014)172
Notas: ISI, SCOPUS