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Momentum distribution of N* in nuclei

  • Regular Article - Theoretical Physics
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Abstract.

Due to its dominance in the low-energy eta-nucleon interaction, the S11 N *(1535) resonance enters as an important ingredient in the analyses of experiments aimed at finding evidence for the existence of eta-mesic nuclei. The static properties of the resonance get modified inside the nucleus and its momentum distribution is used in deciding these properties as well as the kinematics in the analyses. Here we show that given the possibility for the existence of an N *-3He quasibound state, the relative momentum distribution of an N * and 3He inside such a 4He is narrower than that of neutron-3He in 4He. Results for the N *-24Mg system are also presented. The present exploratory work could be useful in motivating searches of exotic N *-nucleus quasibound states as well as in performing analyses of eta-meson production data.

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Authors and Affiliations

  1. Departamento de Fisica, Universidad de los Andes, Cra 1E, 18A-10, Bogotá, Colombia

    N. G. Kelkar

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  1. N. G. Kelkar
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Correspondence to N. G. Kelkar.

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Communicated by A. Ramos

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Kelkar, N.G. Momentum distribution of N* in nuclei. Eur. Phys. J. A 52, 309 (2016). https://doi.org/10.1140/epja/i2016-16309-5

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  • DOI: https://doi.org/10.1140/epja/i2016-16309-5

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