Dataset

GSI-2023-00185

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Prompt and non-prompt J/$\psi$ production cross sections at midrapidity in proton-proton collisions at $\sqrt{s}$ = 5.02 and 13 TeV

ALICE Collaboration (Corresponding author)

2022

Please use a persistent id in citations: doi:10.17182/HEPDATA.129080

Abstract: The production of J/ψ is measured at midrapidity (|y| < 0.9) in proton-proton collisions at $ \sqrt{s} $ = 5.02 and 13 TeV, through the dielectron decay channel, using the ALICE detector at the Large Hadron Collider. The data sets used for the analyses correspond to integrated luminosities of $ \mathcal{L} _{int}$ = 19.4 ± 0.4 nb$^{−1}$ and $ \mathcal{L} _{int}$ = 32.2 ± 0.5 nb$^{−1}$ at $ \sqrt{s} $ = 5.02 and 13 TeV, respectively. The fraction of non-prompt J/ψ mesons, i.e. those originating from the decay of beauty hadrons, is measured down to a transverse momentum p$_{T}$ = 2 GeV/c (1 GeV/c) at $ \sqrt{s} $ = 5.02 TeV (13 TeV). The p$_{T}$ and rapidity (y) differential cross sections, as well as the corresponding values integrated over p$_{T}$ and y, are carried out separately for prompt and non-prompt J/ψ mesons. The results are compared with measurements from other experiments and theoretical calculations based on quantum chromodynamics (QCD). The shapes of the p$_{T}$ and y distributions of beauty quarks predicted by state-of-the-art perturbative QCD models are used to extrapolate an estimate of the $ \mathrm{b}\overline{\mathrm{b}} $ pair cross section at midrapidity and in the total phase space. The total $ \mathrm{b}\overline{\mathrm{b}} $ cross sections are found to be $ {\sigma}_{\mathrm{b}\overline{\mathrm{b}}} $ = 541 ± 45 (stat.) ± 69 $ {\left(\mathrm{syst}.\right)}_{-12}^{+10} $ (extr.) μb and $ {\sigma}_{\mathrm{b}\overline{\mathrm{b}}} $ = 218±37 (stat.)±31 $ {\left(\mathrm{syst}.\right)}_{-9.1}^{+8.2} $ (extr.) μb at $ \sqrt{s} $ = 13 and 5.02 TeV, respectively. The value obtained from the combination of ALICE and LHCb measurements in pp collisions at $ \sqrt{s} $ = 13 TeV is also provided.

Note: Journal aricle GSI record: GSI-2023-00148

---

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)

Experiment(s):

1. LHC: ALICE

Appears in the scientific report 2022

---

---

Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article Acharya, S. ; Adamova, D. ; Adler, A. ; et al
Prompt and non-prompt J/ψ production cross sections at midrapidity in proton-proton collisions at $ \sqrt{\mathrm{s}} $ = 5.02 and 13 TeV
Journal of high energy physics 03(3), 190 (2022) [10.1007/JHEP03(2022)190]2022   Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

---