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

Aad, G ; Åkesson, Torsten LU orcid ; Bocchetta, Simona LU ; Bryngemark, Lene LU ; Corrigan, Eric Edward LU ; Doglioni, Caterina LU ; Gregersen, Kristian LU ; Brottmann Hansen, Eva LU ; Hedberg, Vincent LU and Jarlskog, Göran LU , et al. (2020) In Physical Review Letters 124(8).
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... (More)
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. (Less)
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author collaboration
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Anisotropy, Decay (organic), Germanium compounds, Hadrons, Tellurium compounds, Anisotropy coefficients, ATLAS detectors, Azimuthal anisotropy, Elliptic flows, Integrated luminosity, Muon spectrometer, Pseudorapidities, Transverse momenta, Charged particles
in
Physical Review Letters
volume
124
issue
8
article number
082301
publisher
American Physical Society
external identifiers
  • scopus:85080899264
  • pmid:32167369
ISSN
1079-7114
DOI
10.1103/PhysRevLett.124.082301
language
English
LU publication?
yes
id
1232ff37-fc76-43d9-932f-3e7598ad93c2
date added to LUP
2020-03-19 14:34:04
date last changed
2023-04-10 10:12:12
@article{1232ff37-fc76-43d9-932f-3e7598ad93c2,
  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<sup>-1</sup> 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| &lt; 2.4. A significant nonzero elliptic anisotropy coefficient v<sub>2</sub> is observed for muons from charm decays, while the v<sub>2</sub> value for muons from bottom decays is consistent with zero within uncertainties.}},
  author       = {{Aad, G and Åkesson, Torsten and Bocchetta, Simona and Bryngemark, Lene and Corrigan, Eric Edward and Doglioni, Caterina and Gregersen, Kristian and Brottmann Hansen, Eva and Hedberg, Vincent and Jarlskog, Göran and Kalderon, Charles and Kellermann, Edgar and Konya, Balazs and Lytken, Else and Mankinen, Katja and Marcon, Caterina and Mjörnmark, Ulf and Mullier, Geoffrey André Adrien and Pöttgen, Ruth and Poulsen, Trine and Skorda, Eleni and Smirnova, Oxana and Zwalinski, L.}},
  issn         = {{1079-7114}},
  keywords     = {{Anisotropy; Decay (organic); Germanium compounds; Hadrons; Tellurium compounds; Anisotropy coefficients; ATLAS detectors; Azimuthal anisotropy; Elliptic flows; Integrated luminosity; Muon spectrometer; Pseudorapidities; Transverse momenta; Charged particles}},
  language     = {{eng}},
  month        = {{02}},
  number       = {{8}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Letters}},
  title        = {{Measurement of Azimuthal Anisotropy of Muons from Charm and Bottom Hadrons in pp Collisions at s =13 TeV with the ATLAS Detector}},
  url          = {{http://dx.doi.org/10.1103/PhysRevLett.124.082301}},
  doi          = {{10.1103/PhysRevLett.124.082301}},
  volume       = {{124}},
  year         = {{2020}},
}