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" Measurement of Azimuthal Anisotropy of Muons from Charm and Bottom Hadrons in pp Collisions at sqrt[s]=13 TeV with the ATLAS Detector. "
Aad, GAbbott, BAbbott, DCAbed Abud, AAbeling, KAbhayasinghe, DKAbidi, SHAbouZeid, OSAbraham, NLAbramowicz, HAbreu, HAbulaiti, YAcharya, BSAchkar, BAdachi, SAdam, LAdam Bourdarios, CAdamczyk, LAdamek, LAdelman, JAdersberger, MAdiguzel, AAdorni, SAdye, TAffolder, AAet al.
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AL
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| Record Number
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902711
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LA7zq7m0n5
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| Title & Author
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Measurement of Azimuthal Anisotropy of Muons from Charm and Bottom Hadrons in pp Collisions at sqrt[s]=13 TeV with the ATLAS Detector. [Article]\ Aad, GAbbott, BAbbott, DCAbed Abud, AAbeling, KAbhayasinghe, DKAbidi, SHAbouZeid, OSAbraham, NLAbramowicz, HAbreu, HAbulaiti, YAcharya, BSAchkar, BAdachi, SAdam, LAdam Bourdarios, CAdamczyk, LAdamek, LAdelman, JAdersberger, MAdiguzel, AAdorni, SAdye, TAffolder, AAet al.
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2020
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Lawrence Berkeley National Laboratory
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| Abstract
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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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