Measurement of the production of high-pT electrons from heavy-flavour hadron decays in Pb–Pb collisions at
Electrons from heavy-flavour hadron decays (charm and beauty) were measured with the ALICE detector in Pb–Pb collisions at a centre-of-mass of energy √s NN =2.76 TeV. The transverse momentum (p T ) differential production yields at mid-rapidity were used to calculate the nuclear modification factor R AA in the interval 3 < p T <18 GeV/c. The R AA shows a strong suppression compared to binary scaling of pp collisions at the same energy (up to a factor of 4) in the 10% most central Pb–Pb collisions. There is a centrality trend of suppression, and a weaker suppression (down to a factor of 2) in semi-peripheral (50–80%) collisions is observed. The suppression of electrons in this broad p T interval indicates that both charm and beauty quarks lose energy when they traverse the hot medium formed in Pb–Pb collisions at LHC.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- Contributing Organization:
- Alice Collaboration
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1361103
- Alternate ID(s):
- OSTI ID: 1408457
- Journal Information:
- Physics Letters B, Journal Name: Physics Letters B Vol. 771 Journal Issue: C; ISSN 0370-2693
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- Netherlands
- Language:
- English
Web of Science
Neutral pion and meson production at midrapidity in Pb-Pb collisions at TeV
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journal | October 2018 |
Elliptic flow of electrons from beauty-hadron decays extracted from Pb–Pb collision data at $$\sqrt{s_\mathrm{NN}} = 2.76\ \hbox {TeV}$$ s NN = 2.76 TeV
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journal | May 2018 |
-Meson Azimuthal Anisotropy in Midcentral Pb-Pb Collisions at
|
journal | March 2018 |
Measurement of the suppression and azimuthal anisotropy of muons from heavy-flavor decays in Pb+Pb collisions at TeV with the ATLAS detector
|
journal | October 2018 |
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