Measurements of the transverse-momentum-dependent cross sections of J/[psi] at mid-rapidity in proton + proton collisions at √s=510 and 500 GeV with the STAR detector
We present measurements of the differential cross sections of inclusive J/ψ meson production as a function of transverse momentum (pJ/ψT) using the μ+μ− and e+e− decay channels in proton+proton collisions at center-of-mass energies of 510 and 500 GeV, respectively, recorded by the STAR detector at t...
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| Main Authors: | , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
19 September 2019
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| In: |
Physical review
Year: 2019, Volume: 100, Issue: 5, Pages: 052009 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.100.052009 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1103/PhysRevD.100.052009 Verlag: https://link.aps.org/doi/10.1103/PhysRevD.100.052009 
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| Author Notes: | J. Adam, I.M. Deppner, N. Herrmann [und 344 weitere] (STAR Collaboration) |
| Summary: | We present measurements of the differential cross sections of inclusive J/ψ meson production as a function of transverse momentum (pJ/ψT) using the μ+μ− and e+e− decay channels in proton+proton collisions at center-of-mass energies of 510 and 500 GeV, respectively, recorded by the STAR detector at the Relativistic Heavy Ion Collider. The measurement from the μ+μ− channel is for 0<pJ/ψT<9 GeV/c and rapidity range |yJ/ψ|<0.4, and that from the e+e− channel is for 4<pJ/ψT<20 GeV/c and |yJ/ψ|<1.0. The ψ(2S) to J/ψ ratio is also measured for 4<pmesonT<12 GeV/c through the e+e− decay channel. Model calculations, which incorporate different approaches toward the J/ψ production mechanism, are compared with experimental results and show reasonable agreement within uncertainties. |
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| Item Description: | Im Titel wird "psi"als griechischer Buchstabe dargestellt Im Titel steht der Buchstabe s unter dem Wurzelsymbol Gesehen am 23.10.2019 |
| Physical Description: | Online Resource |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.100.052009 |