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    Measurement of Azimuthal Anisotropy of Muons from Charm and Bottom Hadrons in pp Collisions at root s=13 TeV with the ATLAS Detector

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    Author
    Aaboud, M; Aad, G; Abbott, B; Abdinov, O; Abeloos, B; Abhayasinghe, DK; Abidi, SH; AbouZeid, OS; Abraham, NL; Abramowicz, H; ...
    Date
    2020-02-26
    Source Title
    Physical Review Letters
    Publisher
    AMER PHYSICAL SOC
    University of Melbourne Author/s
    Urquijo, Phillip; Milesi, Marco; Barberio, Luigia; Taylor, Geoffrey; McDonald, Emily; Nuti, Francesco; Ungaro, Francesca Consiglia; Scutti, Federico; Petersen, Brian; Kubota, Takashi
    Affiliation
    School of Physics
    Metadata
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    Document Type
    Journal Article
    Citations
    Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abhayasinghe, D. K., Abidi, S. H., AbouZeid, O. S., Abraham, N. L., Abramowicz, H., Abreu, H., Abulaiti, Y., Acharya, B. S., Adachi, S., Adamczyk, L., Adelman, J., Adersberger, M., Adiguzel, A., Adye, T. ,... Zwalinski, L. (2020). Measurement of Azimuthal Anisotropy of Muons from Charm and Bottom Hadrons in pp Collisions at root s=13 TeV with the ATLAS Detector. PHYSICAL REVIEW LETTERS, 124 (8), https://doi.org/10.1103/PhysRevLett.124.082301.
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/251999
    DOI
    10.1103/PhysRevLett.124.082301
    Abstract
    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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