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Baryon structure in chiral effective field theory on the light front

Abstract : We propose a new approach to treat the nucleon structure in terms of an effective chiral Lagrangian. We formulate the state vector, f(p), of the nucleon in light-front dynamics, and solve the eigenvalue equation ˆP2 Phi(p) = M2 Phi(p) in a truncated Fock space. The effective Lagrangian is decomposed in terms of pion fields in order to match the Fock expansion of the state vector. We use a general renormalization scheme consistent with Fock state truncation. We present our first results in a two-body Fock space truncation.
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http://hal.in2p3.fr/in2p3-00429563
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Submitted on : Tuesday, November 3, 2009 - 2:39:46 PM
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N. Tsirova, V. Karmanov, Jean-Francois Mathiot. Baryon structure in chiral effective field theory on the light front. Sixth International Workshop on Chiral Dynamics, CD09, Jul 2009, Bern, Switzerland. 6 p. ⟨in2p3-00429563⟩

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