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2022-07-18T23:53:10Z
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Measurements of the transverse-momentum-dependent cross sections of J/ψ production at mid-rapidity in proton+proton collisions at √s=510 and 500 GeV with the STAR detector
江角, 晋一
エスミ, シンイチ
ESUMI, ShinIchi
STA Collaboration
open access
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
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.
American Physical Society
2019-09
eng
journal article
VoR
http://hdl.handle.net/2241/0002001414
https://tsukuba.repo.nii.ac.jp/records/2001414
https://doi.org/10.1103/PhysRevD.100.052009
2470-0010
AA00773624
Physical review D
100
5
052009
https://tsukuba.repo.nii.ac.jp/record/2001414/files/PRD_100-5-052009.pdf
application/pdf
978 KB
2021-09-21