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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2507.09198 |
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| _version_ | 1866911052752486400 |
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| author | Pal, Subhadip |
| author_facet | Pal, Subhadip |
| contents | These proceedings present an investigation into the production of $D^{0}$ and $D^{*}$ mesons as a function of transverse momentum in proton-proton (p+p) collisions at a center-of-mass energy of $\sqrt{s}$ = 510 GeV, in the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). Objective of this analysis is to test the perturbative QCD calculations with the charm-anticharm production cross-sections obtained through $D^{0}$ and $D^{*}$ measurements. This report includes ongoing signal extractions of the $D^{0}$ and $D^{*}$ mesons from minimum bias events recorded during the p+p collisions at $\sqrt{s}$ = 510 GeV at STAR in 2017. Signals were reconstructed through the hadronic decay channels of these mesons. Like-sign combination and track rotation methods have been used to estimate the combinatorial background for $D^{0}$ measurement from $p_{T}$ = 0.0 to 2.1 GeV/$c$. For $D^{*}$, wrong-sign and side band combination of the decay daughters were utilized to reconstruct the combinatorial background from $p_{T}$ = 2.0 to 6.0 GeV/$c$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_09198 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Measurements of $D^{0}$ and $D^{*}$ production in p+p collisions at $\sqrt{s}$ = 510 GeV in STAR experiment Pal, Subhadip Nuclear Experiment These proceedings present an investigation into the production of $D^{0}$ and $D^{*}$ mesons as a function of transverse momentum in proton-proton (p+p) collisions at a center-of-mass energy of $\sqrt{s}$ = 510 GeV, in the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). Objective of this analysis is to test the perturbative QCD calculations with the charm-anticharm production cross-sections obtained through $D^{0}$ and $D^{*}$ measurements. This report includes ongoing signal extractions of the $D^{0}$ and $D^{*}$ mesons from minimum bias events recorded during the p+p collisions at $\sqrt{s}$ = 510 GeV at STAR in 2017. Signals were reconstructed through the hadronic decay channels of these mesons. Like-sign combination and track rotation methods have been used to estimate the combinatorial background for $D^{0}$ measurement from $p_{T}$ = 0.0 to 2.1 GeV/$c$. For $D^{*}$, wrong-sign and side band combination of the decay daughters were utilized to reconstruct the combinatorial background from $p_{T}$ = 2.0 to 6.0 GeV/$c$. |
| title | Measurements of $D^{0}$ and $D^{*}$ production in p+p collisions at $\sqrt{s}$ = 510 GeV in STAR experiment |
| topic | Nuclear Experiment |
| url | https://arxiv.org/abs/2507.09198 |