Publications associated with Neutrinos


Measurement of azimuthal anisotropy of muons from charm and bottom hadrons in pp collisions at sqrt[s]=13  TeV with the ATLAS Detector

Physical Review Letters American Physical Society 124 (2020) 82301

G Aad, B Abbott, D Abbott, A Abed Abud, D Abhayasinghe, O AbouZeid, N Abraham, H Abramowicz, Y Abulaiti, B Acharya, S Adachi, C Adam Bourdarios, L Adamczyk, A Affolder, X Ai, G Aielli, E Akilli, G Alberghi, M Aleksa, I Aleksandrov, C Alexa, D Alexandre, T Alexopoulos

The elliptic flow of muons from the decay of charm and bottom hadrons is measured in pp collisions at sqrt[s]=13  TeV using a data sample with an integrated luminosity of 150  pb^{-1} recorded by the ATLAS detector at the LHC. The muons from heavy-flavor decay are separated from light-hadron decay muons using momentum imbalance between the tracking and muon spectrometers. The heavy-flavor decay muons are further separated into those from charm decay and those from bottom decay using the distance-of-closest-approach to the collision vertex. The measurement is performed for muons in the transverse momentum range 4-7 GeV and pseudorapidity range |η|<2.4. A significant nonzero elliptic anisotropy coefficient v_{2} is observed for muons from charm decays, while the v_{2} value for muons from bottom decays is consistent with zero within uncertainties.


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