Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10723975 | Physics Letters B | 2011 | 6 Pages |
Abstract
The J/Ψ mass shift in cold nuclear matter is computed using an effective Lagrangian approach. The mass shift is computed by evaluating D and Dâ meson loop contributions to the J/Ψ self-energy employing medium-modified meson masses. The modification of the D and Dâ masses in nuclear matter is obtained using the quark-meson coupling model. The loop integrals are regularized with dipole form factors and the sensitivity of the results to the values of form-factor cutoff masses is investigated. The J/Ψ mass shift arising from the modification of the D and Dâ loops at normal nuclear matter density is found to range from â16 MeV to â24 MeV under a wide variation of values of the cutoff masses. Experimental perspectives for the formation of a bound state of J/Ψ to a nucleus are investigated.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
G. Krein, A.W. Thomas, K. Tsushima,