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Type: | Journal article |
Title: | J/Ψ mass shift in nuclear matter |
Other Titles: | J/Psi mass shift in nuclear matter |
Author: | Krein, G. Thomas, A. Tsushima, K. |
Citation: | Physics Letters B: Nuclear Physics and Particle Physics, 2011; 697(2):136-141 |
Publisher: | Elsevier Science BV |
Issue Date: | 2011 |
ISSN: | 0370-2693 1873-2445 |
Statement of Responsibility: | G. Krein, A.W. Thomas, K. Tsushima |
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 D∗ meson loop contributions to the J/Ψ self-energy employing medium-modified meson masses. The modification of the D and D∗ 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 D∗ loops at normal nuclear matter density is found to range from −16 MeV to −24 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. |
Keywords: | Mesons in nuclear matter; Mesic nuclei; Nuclear-bound quarkonium; Charmed mesons; Quark–meson coupling model |
Rights: | © 2011 Elsevier B.V. Open access under the Elsevier OA license. |
DOI: | 10.1016/j.physletb.2011.01.037 |
Grant ID: | http://purl.org/au-research/grants/arc/Australian Laureate Fellowship |
Published version: | http://dx.doi.org/10.1016/j.physletb.2011.01.037 |
Appears in Collections: | Aurora harvest 2 Chemistry and Physics publications |
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