Measurement of Azimuthal Anisotropy of Muons from Charm and Bottom Hadrons in pp Collisions at √s=13 TeV with the ATLAS Detector : Physical Review Letters

Collaboration, ATLAS and Barton, A.E. and Bertram, I.A. and Borissov, G. and Bouhova-Thacker, E.V. and Fox, H. and Henderson, R.C.W. and Jones, R.W.L. and Kartvelishvili, V. and Long, R.E. and Love, P.A. and Muenstermann, D. and Parker, A.J. and Sanderswood, Izaac and Smizanska, M. and Tee, A.S. and Walder, J. and Wharton, A.M. and Whitmore, B.W. and Yexley, Melissa (2020) Measurement of Azimuthal Anisotropy of Muons from Charm and Bottom Hadrons in pp Collisions at √s=13 TeV with the ATLAS Detector : Physical Review Letters. Phys Rev Lett, 124 (8): 082301. ISSN 0031-9007

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Abstract

The elliptic flow of muons from the decay of charm and bottom hadrons is measured in pp collisions at √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 v2 is observed for muons from charm decays, while the v2 value for muons from bottom decays is consistent with zero within uncertainties.

Item Type:
Journal Article
Journal or Publication Title:
Phys Rev Lett
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
?? anisotropydecay (organic)germanium compoundshadronstellurium compoundsanisotropy coefficientsatlas detectorsazimuthal anisotropyelliptic flowsintegrated luminositymuon spectrometerpseudorapiditiestransverse momentacharged particlesphysics and astronomy(al ??
ID Code:
142650
Deposited By:
Deposited On:
24 Mar 2020 09:12
Refereed?:
Yes
Published?:
Published
Last Modified:
14 Feb 2024 01:27