Analysis of the ΛQ baryons in the nuclear matter with the QCD sum rules

In this article, we study the Lambda(c) and Lambda(b) baryons in the nuclear matter using the QCD sum rules, and obtain the in-medium masses M*(Lambda c) = 2.335 GeV, M*(Lambda b) = 5.678 GeV, the in-medium vector self-energies Sigma(Lambda c)(v) = 34 MeV, Sigma(Lambda b)(v) = 32 MeV, and the in-medium pole residues lambda*(Lambda c) = 0.021 GeV3, lambda*(Lambda b) = 0.026 GeV3. The mass-shifts are M*(Lambda c) - M-Lambda c = 51 MeV and M*(Lambda b) - M-Lambda b = 60 MeV, respectively.