Internal structure of the Tcc(3875)+ from its light-quark mass dependence
We employ a chiral effective field theory-based approach to connect DD⁎ scattering observables at the physical and variable pion masses accessible in lattice QCD simulations. We incorporate all relevant scales associated with three-body DDπ dynamics and the left-hand cut induced by the one-pion exch...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269324007469 |
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| author | Michael Abolnikov Vadim Baru Evgeny Epelbaum Arseniy A. Filin Christoph Hanhart Lu Meng |
| author_facet | Michael Abolnikov Vadim Baru Evgeny Epelbaum Arseniy A. Filin Christoph Hanhart Lu Meng |
| author_sort | Michael Abolnikov |
| collection | DOAJ |
| description | We employ a chiral effective field theory-based approach to connect DD⁎ scattering observables at the physical and variable pion masses accessible in lattice QCD simulations. We incorporate all relevant scales associated with three-body DDπ dynamics and the left-hand cut induced by the one-pion exchange for pion masses higher than the physical one, as required by analyticity and unitarity. By adjusting the contact interactions to match experimental data at the physical pion mass and lattice finite-volume energy levels at mπ=280 MeV, we predict the trajectory of the Tcc pole as a function of the pion mass, finding it consistent with the hadronic-molecule scenario. In particular, we find that the explicit treatment of the one-pion exchange has a pronounced effect on the pole trajectory for mπ≳230 MeV by pushing it into the complex energy plane. |
| format | Article |
| id | doaj-art-e9b2c98a6087412a9576922d34f5944b |
| institution | Kabale University |
| issn | 0370-2693 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj-art-e9b2c98a6087412a9576922d34f5944b2025-01-10T04:37:34ZengElsevierPhysics Letters B0370-26932025-01-01860139188Internal structure of the Tcc(3875)+ from its light-quark mass dependenceMichael Abolnikov0Vadim Baru1Evgeny Epelbaum2Arseniy A. Filin3Christoph Hanhart4Lu Meng5Institut für Theoretische Physik II, Ruhr-Universität Bochum, D-44780 Bochum, GermanyInstitut für Theoretische Physik II, Ruhr-Universität Bochum, D-44780 Bochum, Germany; Corresponding author.Institut für Theoretische Physik II, Ruhr-Universität Bochum, D-44780 Bochum, GermanyInstitut für Theoretische Physik II, Ruhr-Universität Bochum, D-44780 Bochum, GermanyInstitute for Advanced Simulation (IAS-4), Forschungszentrum Jülich, D-52425 Jülich, GermanyInstitut für Theoretische Physik II, Ruhr-Universität Bochum, D-44780 Bochum, GermanyWe employ a chiral effective field theory-based approach to connect DD⁎ scattering observables at the physical and variable pion masses accessible in lattice QCD simulations. We incorporate all relevant scales associated with three-body DDπ dynamics and the left-hand cut induced by the one-pion exchange for pion masses higher than the physical one, as required by analyticity and unitarity. By adjusting the contact interactions to match experimental data at the physical pion mass and lattice finite-volume energy levels at mπ=280 MeV, we predict the trajectory of the Tcc pole as a function of the pion mass, finding it consistent with the hadronic-molecule scenario. In particular, we find that the explicit treatment of the one-pion exchange has a pronounced effect on the pole trajectory for mπ≳230 MeV by pushing it into the complex energy plane.http://www.sciencedirect.com/science/article/pii/S0370269324007469 |
| spellingShingle | Michael Abolnikov Vadim Baru Evgeny Epelbaum Arseniy A. Filin Christoph Hanhart Lu Meng Internal structure of the Tcc(3875)+ from its light-quark mass dependence Physics Letters B |
| title | Internal structure of the Tcc(3875)+ from its light-quark mass dependence |
| title_full | Internal structure of the Tcc(3875)+ from its light-quark mass dependence |
| title_fullStr | Internal structure of the Tcc(3875)+ from its light-quark mass dependence |
| title_full_unstemmed | Internal structure of the Tcc(3875)+ from its light-quark mass dependence |
| title_short | Internal structure of the Tcc(3875)+ from its light-quark mass dependence |
| title_sort | internal structure of the tcc 3875 from its light quark mass dependence |
| url | http://www.sciencedirect.com/science/article/pii/S0370269324007469 |
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