Non-prompt $\mathrm{J}/ψ$ production in proton-proton collisions with ALICE
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arXiv
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| Format: | Preprint |
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2023
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| _version_ | 1866913263844851712 |
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| author | Guo, Wenda |
| author_facet | Guo, Wenda |
| contents | $\mathrm{J}/ψ$ production in high-energy hadronic collisions is sensitive to both perturbative and non-perturbative aspects of quantum chromodynamics (QCD) calculations. The production of a heavy-quark pair is well-described by perturbative QCD, whereas the formation of the bound state involves non-perturbative processes, treated in different ways by various available theoretical models. ALICE can measure inclusive $\mathrm{J}/ψ$ at both forward and midrapidity down to low ${p_{\rm T}}$ and the prompt and non-prompt $\mathrm{J}/ψ$ separation can be performed at midrapidity. The study of the production of non-prompt $\mathrm{J}/ψ$ originating from the decay of beauty hadrons, besides allowing to isolate the prompt $\mathrm{J}/ψ$ cross section from the inclusive $\mathrm{J}/ψ$ cross section, can be used to estimate open beauty-hadron production. Heavy-flavour particle production in pp collisions as a function of charged-particle multiplicity can provide insight into the processes occuring in the collision at the partonic level, as well as the interplay between the hard and soft mechanisms in particle production. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2401_00868 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Non-prompt $\mathrm{J}/ψ$ production in proton-proton collisions with ALICE Guo, Wenda High Energy Physics - Experiment High Energy Physics - Phenomenology $\mathrm{J}/ψ$ production in high-energy hadronic collisions is sensitive to both perturbative and non-perturbative aspects of quantum chromodynamics (QCD) calculations. The production of a heavy-quark pair is well-described by perturbative QCD, whereas the formation of the bound state involves non-perturbative processes, treated in different ways by various available theoretical models. ALICE can measure inclusive $\mathrm{J}/ψ$ at both forward and midrapidity down to low ${p_{\rm T}}$ and the prompt and non-prompt $\mathrm{J}/ψ$ separation can be performed at midrapidity. The study of the production of non-prompt $\mathrm{J}/ψ$ originating from the decay of beauty hadrons, besides allowing to isolate the prompt $\mathrm{J}/ψ$ cross section from the inclusive $\mathrm{J}/ψ$ cross section, can be used to estimate open beauty-hadron production. Heavy-flavour particle production in pp collisions as a function of charged-particle multiplicity can provide insight into the processes occuring in the collision at the partonic level, as well as the interplay between the hard and soft mechanisms in particle production. |
| title | Non-prompt $\mathrm{J}/ψ$ production in proton-proton collisions with ALICE |
| topic | High Energy Physics - Experiment High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2401.00868 |