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Weak binding limit and non zero angular momentum states in Light-Front Dynamics

Abstract : We show some results concerning the weak binding limit for J=0 states -- which turn out to strongly differ from the non relativistic case -- together with the construction of non zero angular momentum states. The calculation of such states in the Light-Front Dynamics (LFD) framework has some peculiarities which are absent in other approaches. They are related to the fact that the rotation generators contain interaction. We present here the construction of non zero angular momentum states in LFD and show how it leads to a restoration of rotational invariance. For this purpose, the use of Light-Front Dynamics in its explicitly covariant formulation is of crucial importance since the dependence of the wave function on the light-front plane is explicitly parametrized.
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http://hal.in2p3.fr/in2p3-00007881
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Submitted on : Monday, July 10, 2006 - 11:22:12 AM
Last modification on : Thursday, November 19, 2020 - 12:58:31 PM

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M. Mangin-Brinet, J. Carbonell, V.A. Karmanov. Weak binding limit and non zero angular momentum states in Light-Front Dynamics. 10th International Light-Cone Meeting on Non-Perturbative QCD and Hadron Phenomenology, Jun 2000, Heidelberg, Germany. pp.123-126. ⟨in2p3-00007881⟩

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