Dataset

GSI-2024-00218

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Measurement of electrons from beauty-hadron decays in pp and Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV

ALICE Collaboration (Corresponding author)

2023

Please use a persistent id in citations: doi:10.17182/HEPDATA.144336

Abstract: The production of electrons from beauty-hadron decays was measured at midrapidity in proton--proton (pp) and central Pb--Pb collisions at center-of-mass energy per nucleon--nucleon pair $\sqrt{s_{\rm{NN}}} = 5.02~{\rm TeV}$, using the ALICE detector at the LHC. The cross section measured in pp collisions in the transverse momentum interval $2 < P_T < 8 $ GeV/$c$ was compared with models based on perturbative quantum chromodynamics calculations. The yield in the 10% most central Pb--Pb collisions, measured in the interval $2 < P_T < 26 $ GeV/$c$ , was used to compute the nuclear modification factor $R_{AA}$, extrapolating the pp reference cross section to $P_T$ larger than 8 GeV/c. The measured $R_{AA}$ shows significant suppression of the yield of electrons from beauty-hadron decays at high $P_T$ and does not show a significant dependence on $P_T$ above 8 GeV/c within uncertainties. The results are described by several theoretical models based on different implementations of the interaction of heavy quarks with a quark--gluon plasma, which predict a smaller energy loss for beauty quarks compared to light and charm quarks.

Note: Journal Article GSI record: GSI-2024-00217

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Contributing Institute(s):

1. ALICE (ALI)
2. Detektorlabor (DTL)
3. IT (CIT)
4. ExtreMe Matter Institute, EMMI (EXM)
5. Collaboration CERN: ALICE (ALICE@CERN)

Research Program(s):

1. 612 - Cosmic Matter in the Laboratory (POF4-612) (POF4-612)
2. HGS-HIRe - HGS-HIRe for FAIR (HGS-HIRe) (HGS-HIRe)
3. SUC-GSI-Heidelberg - Strategic university cooperation GSI-U Heidelberg (SUC-GSI-HE) (SUC-GSI-HE)
4. SUC-GSI-Frankfurt - Strategic university cooperation GSI-U Frankfurt/M (SUC-GSI-FR) (SUC-GSI-FR)
5. SUC-GSI-Darmstadt - Strategic university cooperation GSI-TU Darmstadt (SUC-GSI-DA) (SUC-GSI-DA)
6. STRONG-2020 - The strong interaction at the frontier of knowledge: fundamental research and applications (824093) (824093)

Experiment(s):

1. LHC: ALICE

Appears in the scientific report 2023

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article Acharya, S. ; Adamová, D. ; Adler, A. ; et al
Measurement of electrons from beauty-hadron decays in pp and Pb-Pb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV
Physical review / C 108(3), 034906 (2023) [10.1103/PhysRevC.108.034906]2023   Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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