2025/10/11 by Ze-Hua Zhang, Xiang Liu, Zhang, Ze-Hua +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nuclear Theory (nucl-th) #hep-ph #nucl-th
paper · pdf · doi:10.48550/arxiv.2510.10200
published as Phys. Rev. D 113, 014044 (2026); Erratum: Phys. Rev. D 114, 019901 (2026) · 11 pages, 7 figures and 2 tables
arxiv created 2025/10/11 · arxiv updated 2026/08/04
In this work, we employ the quark-meson coupling model to investigate the mass shifts of 1P-wave charmonia χcJ(1P) (J=0,1,2) in cold symmetric nuclear matter by incorporating in-medium loop contributions to the χcJ(1P) self-energy within the unquenched picture. At normal nuclear matter density, we obtain significant mass reductions of about 60 MeV for the χcJ(1P) states, with the χc2(1P) mass shift primarily arising from the vector-vector loop. Our results also indicate the absence of level crossing between the in-medium χcJ(1P) mass and the DD mass threshold up to ρB < 3ρ0-a feature that could be probed in the Compressed Baryonic Matter experiment at FAIR and the Beam Energy Scan program at RHIC.