Ξcγ→Ξc ′ transition in lattice QCD
Type :
Article
Publication Status :
Published
Access :
restrictedAccess
Abstract
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 Ξc 0γ→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.
Source :
Physics Letters B
Date :
2017-09-10
Volume :
772
Publisher :
Elsevier
URI
http://hdl.handle.net/10679/5676http://www.sciencedirect.com/science/article/pii/S0370269317304896#!
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