Ξcγ→Ξc′ transition in lattice QCD
| Autor: | H. Bahtiyar, K.U. Can, G. Erkol, M. Oka, T.T. Takahashi |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Physics Letters B, Vol 772, Iss C, Pp 121-126 (2017) |
| Druh dokumentu: | article |
| ISSN: | 0370-2693 1873-2445 |
| DOI: | 10.1016/j.physletb.2017.06.022 |
| Popis: | We evaluate the electromagnetic Ξcγ→Ξc′ transition on 2+1 flavor lattices corresponding to a pion mass of ∼156 MeV. We extract the magnetic Sachs and Pauli form factors which give the Ξc–Ξc′ transition magnetic moment and the decay widths of Ξc′ baryons. We did not find a signal for the magnetic form factor of the neutral transition Ξc0γ→Ξc′0, which is suppressed by the U-spin flavor symmetry. As a byproduct, we extract the magnetic form factors and the magnetic moments of Ξc and Ξc′ baryons, which give an insight to the dynamics of u/d, s and c quarks having masses at different scales. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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