Measurement of beauty production via non-prompt D0 mesons in Pb-Pb collisions at √sNN = 5.02 TeV
(2022) In Journal of High Energy Physics 2022(12).- Abstract
- The production of non-prompt D0 mesons from beauty-hadron decays was measured at midrapidity (|y| < 0.5) in Pb-Pb collisions at a nucleon-nucleon center-of-mass energy of sNN = 5.02 TeV with the ALICE experiment at the LHC. Their nuclear modification factor (RAA), measured for the first time down to pT = 1 GeV/c in the 0–10% and 30–50% centrality classes, indicates a significant suppression, up to a factor of about three, for pT> 5 GeV/c in the 0–10% central Pb-Pb collisions. The data are described by models that include both collisional and radiative processes in the calculation of beauty-quark energy loss in the quark-gluon plasma, and quark recombination in addition to fragmentation as a hadronisation mechanism. The ratio of the... (More)
- The production of non-prompt D0 mesons from beauty-hadron decays was measured at midrapidity (|y| < 0.5) in Pb-Pb collisions at a nucleon-nucleon center-of-mass energy of sNN = 5.02 TeV with the ALICE experiment at the LHC. Their nuclear modification factor (RAA), measured for the first time down to pT = 1 GeV/c in the 0–10% and 30–50% centrality classes, indicates a significant suppression, up to a factor of about three, for pT> 5 GeV/c in the 0–10% central Pb-Pb collisions. The data are described by models that include both collisional and radiative processes in the calculation of beauty-quark energy loss in the quark-gluon plasma, and quark recombination in addition to fragmentation as a hadronisation mechanism. The ratio of the non-prompt to prompt D0-meson RAA is larger than unity for pT> 4 GeV/c in the 0–10% central Pb-Pb collisions, as predicted by models in which beauty quarks lose less energy than charm quarks in the quark-gluon plasma because of their larger mass. [Figure not available: see fulltext.] © 2022, The Author(s). (Less)
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- publishing date
- 2022
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Heavy Ion Experiments, Heavy Quark Production, Quark Gluon Plasma
- in
- Journal of High Energy Physics
- volume
- 2022
- issue
- 12
- article number
- 126
- publisher
- Springer
- external identifiers
-
- scopus:85145731129
- ISSN
- 1029-8479
- DOI
- 10.1007/JHEP12(2022)126
- language
- English
- LU publication?
- yes
- id
- c475ee6f-869b-4c88-a1ec-a00d549365d3
- date added to LUP
- 2023-01-16 12:04:55
- date last changed
- 2023-05-11 09:08:34
@article{c475ee6f-869b-4c88-a1ec-a00d549365d3, abstract = {{The production of non-prompt D0 mesons from beauty-hadron decays was measured at midrapidity (|y| < 0.5) in Pb-Pb collisions at a nucleon-nucleon center-of-mass energy of sNN = 5.02 TeV with the ALICE experiment at the LHC. Their nuclear modification factor (RAA), measured for the first time down to pT = 1 GeV/c in the 0–10% and 30–50% centrality classes, indicates a significant suppression, up to a factor of about three, for pT> 5 GeV/c in the 0–10% central Pb-Pb collisions. The data are described by models that include both collisional and radiative processes in the calculation of beauty-quark energy loss in the quark-gluon plasma, and quark recombination in addition to fragmentation as a hadronisation mechanism. The ratio of the non-prompt to prompt D0-meson RAA is larger than unity for pT> 4 GeV/c in the 0–10% central Pb-Pb collisions, as predicted by models in which beauty quarks lose less energy than charm quarks in the quark-gluon plasma because of their larger mass. [Figure not available: see fulltext.] © 2022, The Author(s).}}, author = {{Acharya, S. and Adolfsson, J. and Basu, S. and Christiansen, P. and Matonoha, O. and Nassirpour, A.F. and Ohlson, A. and Oskarsson, A. and Richert, T. and Rueda, O.V. and Silvermyr, D. and Zurlo, N.}}, issn = {{1029-8479}}, keywords = {{Heavy Ion Experiments; Heavy Quark Production; Quark Gluon Plasma}}, language = {{eng}}, number = {{12}}, publisher = {{Springer}}, series = {{Journal of High Energy Physics}}, title = {{Measurement of beauty production via non-prompt D0 mesons in Pb-Pb collisions at √sNN = 5.02 TeV}}, url = {{http://dx.doi.org/10.1007/JHEP12(2022)126}}, doi = {{10.1007/JHEP12(2022)126}}, volume = {{2022}}, year = {{2022}}, }