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Are the $J/\psi$ and $\chi_c A$ Dependencies the Same?

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arxiv hep-ph/0107045 v1 pith:OIQX6SBX submitted 2001-07-05 hep-ph

R. Vogt (Niels Bohr Institute , LBNL , UC Davis) This is my paper · ORCID
classification hep-ph
keywords productionabsorptionbeencharmoniumdependencecerncolordependencies
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abstract

It has been empirically observed that the dependence of $J/\psi$ and $\psi'$ production on nuclear mass number $A$ is very similar. This has been postulated to be due to the predominance of color octet pre-resonant states in charmonium production and absorption. Two new experiments, NA60 at CERN and HERA-B at DESY, will measure the $\chi_c$ $A$ dependence for the first time. These measurements should shed new light on the charmonium production and absorption mechanisms.

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  1. Absorption of 1$P$-wave heavy charmonium $\chi_{c1}(1P)$ in nuclei

    nucl-th 2026-04 unverdicted novelty 3.0 of 10

    Calculations of excitation functions, momentum spectra, and transparency ratios for χ_c1(1P) on 12C and 184W nuclei demonstrate sensitivity to different absorption cross-section scenarios, proposed for extraction via ...

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