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Analysis of the quadrupole deformation of Δ(1232) within an effective Lagrangian model for pion photoproduction from the nucleon

  • QNP 2006
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Abstract.

We present an extraction of the E2/M1 ratio of the Δ(1232) from experimental data applying an effective Lagrangian model. We compare the result obtained with different nucleonic models and we reconcile the experimental results with the lattice QCD calculations.

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Authors and Affiliations

  1. Instituto de Estructura de la Materia, CSIC, Serrano 123, E-28006, Madrid, Spain

    C. Fernández-Ramırez & E. Moya de Guerra

  2. Departamento de Fısica Atómica, Molecular y Nuclear, Universidad de Sevilla, Apdo. 1065, E-41080, Sevilla, Spain

    C. Fernández-Ramırez

  3. Departamento de Fısica Atómica, Molecular y Nuclear, Facultad de Ciencias Fısicas, Universidad Complutense de Madrid, Avda. Complutense s/n, E-28040, Madrid, Spain

    E. Moya de Guerra & J. M. Udıas

Authors
  1. C. Fernández-Ramırez
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  2. E. Moya de Guerra
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  3. J. M. Udıas
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Fernández-Ramırez, C., Moya de Guerra, E. & Udıas, J.M. Analysis of the quadrupole deformation of Δ(1232) within an effective Lagrangian model for pion photoproduction from the nucleon. Eur. Phys. J. A 31, 572–574 (2007). https://doi.org/10.1140/epja/i2006-10198-1

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  • DOI: https://doi.org/10.1140/epja/i2006-10198-1

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