Measurement of the $Λ_c^+$ to $D^0$ production cross-section ratio in peripheral PbPb collisions
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arXiv
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| Formato: | Preprint |
| Publicado: |
2022
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| _version_ | 1866913886130667520 |
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| author | LHCb collaboration |
| author_facet | LHCb collaboration |
| contents | We report on a measurement of the $Λ_c^+$ to $D^0$ production ratio in PbPb collisions at $\sqrt{s_{\rm NN}}$= 5.02 TeV with the LHCb detector in the forward rapidity region $2 <y< 4.5$. The $Λ_c^+$ ($D^0$) hadrons are reconstructed via the decay channel $Λ_c^+\rightarrow pK^+π^-$ ($D^0 \rightarrow K^-π^+$) for $2<p_{\rm T}<8$ GeV$/c$ and in the centrality range of about 65-90%. The results show no significant dependence on $p_{T}$, $y$ or the mean number of participating nucleons. They are also consistent with similar measurements obtained by the LHCb collaboration in pPb and Pbp collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV. The data agree well with predictions from PYTHIA in pp collisions at $\sqrt{s}$ = 5 TeV but are in tension with predictions of the Statistical Hadronization model. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2210_06939 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Measurement of the $Λ_c^+$ to $D^0$ production cross-section ratio in peripheral PbPb collisions LHCb collaboration High Energy Physics - Experiment We report on a measurement of the $Λ_c^+$ to $D^0$ production ratio in PbPb collisions at $\sqrt{s_{\rm NN}}$= 5.02 TeV with the LHCb detector in the forward rapidity region $2 <y< 4.5$. The $Λ_c^+$ ($D^0$) hadrons are reconstructed via the decay channel $Λ_c^+\rightarrow pK^+π^-$ ($D^0 \rightarrow K^-π^+$) for $2<p_{\rm T}<8$ GeV$/c$ and in the centrality range of about 65-90%. The results show no significant dependence on $p_{T}$, $y$ or the mean number of participating nucleons. They are also consistent with similar measurements obtained by the LHCb collaboration in pPb and Pbp collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV. The data agree well with predictions from PYTHIA in pp collisions at $\sqrt{s}$ = 5 TeV but are in tension with predictions of the Statistical Hadronization model. |
| title | Measurement of the $Λ_c^+$ to $D^0$ production cross-section ratio in peripheral PbPb collisions |
| topic | High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2210.06939 |