Measurements of elliptic and triangular flow in high-multiplicity 3He+Au collisions at √sNN=200 GeV

Adare, A. and Afanasiev, S. and Aidala, C. and Ajitanand, N. N. and Akiba, Y. and Csanád, Máté and Csörgő, Tamás and Imrek, József and Kiss, Ádám and Nagy, Márton and Novák, Tamás and Ster, András and Sziklai, János István and Tarján, Péter and Vértesi, Róbert and Zimányi, József (2015) Measurements of elliptic and triangular flow in high-multiplicity 3He+Au collisions at √sNN=200 GeV. PHYSICAL REVIEW LETTERS, 115. ISSN 0031-9007

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Abstract

The angular distributions and the differential branching fraction of the decay B0 to K*0(892) mu mu are studied using data corresponding to an integrated luminosity of 20.5 inverse femtobarns collected with the CMS detector at the LHC in pp collisions at sqrt(s) = 8 TeV. From 1430 signal decays, the forward-backward asymmetry of the muons, the K*0(892) longitudinal polarization fraction, and the differential branching fraction are determined as a function of the dimuon invariant mass squared. The measurements are among the most precise to date and are in good agreement with standard model predictions.

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