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Measurement of heavy flavor production and azimuthal anisotropy in small and large systems with ATLAS
Brookhaven Natl Lab, Upton, NY 11973 USA..
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0002-8015-7512
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0002-5935-7464
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2019 (English)In: Nuclear Physics A, ISSN 0375-9474, E-ISSN 1873-1554, Vol. 982, p. 687-690Article in journal (Refereed) Published
Abstract [en]

Heavy-flavor hadron production and collective motion in A+A collisions provide insight into the energy loss mechanism and transport properties of heavy quarks in the QGP. The same measurements in p+A collisions serve as an important baseline for understanding the observations in A+A collisions. For example, detailed studies of heavy-flavor hadron azimuthal anisotropy in p+A collisions may help to address whether the observed long-range "ridge" correlation arises from hard or semi-hard processes, or if it is the result of mechanisms unrelated to the initial hardness scale. These proceedings summarize heavy-flavor hadron production, via their semi-leptonic decay to muons in 2.76 TeV Pb+Pb and pp collisions, non-prompt J/psi in 5.02 TeV Pb+Pb and pp collisions, and prompt D-0 mesons in 8.16 TeV p+Pb collisions using ATLAS detector at the LHC. Azimuthal anisotropy of heavy-flavor hadrons is studied via their decay muons in 2.76 TeV Pb+Pb and 8.16 TeV p+Pb collisions, and via non-prompt J/psi in 5.02 TeV Pb+Pb collisions. Strong suppression of heavy-flavor hadron production and azimuthal anisotropy are observed in Pb+Pb collisions, while significant azimuthal anisotropy of heavy-flavor muons is observed in p+Pb collisions, without evidence of the modification of their production rates.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE BV , 2019. Vol. 982, p. 687-690
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Subatomic Physics
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URN: urn:nbn:se:kth:diva-245165DOI: 10.1016/j.nuclphysa.2018.09.028ISI: 000457515500157OAI: oai:DiVA.org:kth-245165DiVA, id: diva2:1294461
Note

QC 20190307

Available from: 2019-03-07 Created: 2019-03-07 Last updated: 2019-08-08Bibliographically approved

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Ohm, ChristianRipellino, GiuliaSidebo, P. Edvin

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