Measurement of the $\phi^*_\eta$ distribution of muon pairs with masses between 30 and 500 GeV in 10.4 fb$^{-1}$ of $p\bar{p}$ collisions

Abstract : We present a measurement of the distribution of the variable $\phi^*_\eta$ for muon pairs with masses between 30 and 500 GeV, using the complete Run II data set collected by the D0 detector at the Fermilab Tevatron proton-antiproton collider. This corresponds to an integrated luminosity of 10.4 fb$^{-1}$ at $\sqrt{s}$ = 1.96 TeV. The data are corrected for detector effects and presented in bins of dimuon rapidity and mass. The variable $\phi^*_\eta$ probes the same physical effects as the $Z/\gamma^*$ boson transverse momentum, but is less susceptible to the effects of experimental resolution and efficiency. These are the first measurements at any collider of the $\phi^*_\eta$ distributions for dilepton masses away from the $Z\rightarrow \ell^+\ell^-$ boson mass peak. The data are compared to QCD predictions based on the resummation of multiple soft gluons.
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Physical Review D, American Physical Society, 2015, 91, pp.072002. 〈10.1103/PhysRevD.91.072002〉
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http://hal.in2p3.fr/in2p3-01078719
Contributeur : Emmanuelle Vernay <>
Soumis le : jeudi 30 octobre 2014 - 08:10:16
Dernière modification le : mardi 22 mai 2018 - 21:48:09

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V.M. Abazov, G. Sajot, J. Stark, S. Greder, F. Miconi, et al.. Measurement of the $\phi^*_\eta$ distribution of muon pairs with masses between 30 and 500 GeV in 10.4 fb$^{-1}$ of $p\bar{p}$ collisions. Physical Review D, American Physical Society, 2015, 91, pp.072002. 〈10.1103/PhysRevD.91.072002〉. 〈in2p3-01078719〉

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