Dataset

GSI-2024-00237

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Inclusive and multiplicity dependent production of electrons from heavy-flavour hadron decays in pp and p$-$Pb collisions

ALICE Collaboration (Corresponding author)

2023

Please use a persistent id in citations: doi:10.17182/HEPDATA.142624

Abstract: Measurements of the production of electrons from heavy-flavour hadron decays in pp collisions at $\sqrt{s} =$13 TeV at midrapidity with the ALICE detector are presented down to a transverse momentum ($p_T$) of 0.2 GeV/$c$ and up to $p_T$ 35 GeV/$c$, which is the largest momentum range probed for inclusive electron measurements in ALICE. In p$-$Pb collisions, the production cross section and the nuclear modification factor of electrons from heavy-flavour hadron decays are measured in the $p_T$ range $0.5< p_T<36$ GeV at $\sqrt{s_{NN}} =8.16$ TeV. The nuclear modification factor is found to be consistent with unity within the statistical and systematic uncertainties. In both collision systems, first measurements of the yields of electrons from heavy-flavour hadron decays in different multiplicity intervals normalised to the multiplicity-integrated yield (self-normalised yield) at midrapidity are reported as a function of the self-normalised charged-particle multiplicity estimated at midrapidity. The self-normalised yields in pp and p$-$Pb collisions grow faster than linear with the self-normalised multiplicity. A strong $p_T$ dependence is observed in pp collisions, where the yield of high- $p_T$ electrons increases faster as a function of multiplicity than the one of low- $p_T$ electrons. The measurement in p$-$Pb collisions shows no $p_T$ dependence within uncertainties. The self-normalised yields in pp and p$-$Pb collisions are compared with measurements of other heavy-flavour, light-flavour, and strange particles, and with Monte Carlo simulations.

Note: Journal Article GSI record: GSI-2024-00236

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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. ; Adamova, D. ; Adler, A. ; et al
Inclusive and multiplicity dependent production of electrons from heavy-flavour hadron decays in pp and p-Pb collisions
Journal of high energy physics 08(8), 6 (2023) [10.1007/JHEP08(2023)006]2023   Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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