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Contribution of the Δ-isobar excitation mechanism to the pp → {pp} s π0 reaction

  • The International Session-Conference of SNP PSD RAS “Physics of Fundamental Interactions”
  • Session 4—Nuclear Physics at Low and Intermediate Energies
  • Published:
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Abstract

The differential cross section of the reaction pp → {pp} s π0, where {pp} s is the proton pair in the 1S0 state at a small excitation energy E pp < 3 MeV, is calculated using the box diagram with the excitation of the Δ-isobar. The model demonstrates a clear bump observed in the experimental data at the beam energy of ∼0.6 GeV and the zero diproton outgoing angle; however, its absolute value strongly depends on the off-shell extrapolation of the πNΔ vertex factor and underestimates the data.

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Author information

Authors and Affiliations

  1. Joint Institute for Nuclear Research, Dubna, 141980, Russia

    Yu. N. Uzikov

  2. Dubna State University, Dubna, 141982, Russia

    Yu. N. Uzikov

  3. Kazakh National University, Almaty, Republic of Kazakhstan

    O. Imambekov

Authors
  1. Yu. N. Uzikov
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  2. O. Imambekov
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Correspondence to Yu. N. Uzikov.

Additional information

Original Russian Text © Yu.N. Uzikov, O. Imambekov, 2017, published in Fizika Elementarnykh Chastits i Atomnogo Yadra, 2017, Vol. 48, No. 6.

A talk given at the International Session-Conference “Physics of Fundamental Interactions”, Section of Nuclear Physics, Physical Sciences Division, Russian Academy of Sciences, Dubna, April 12–15, 2016.

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Uzikov, Y.N., Imambekov, O. Contribution of the Δ-isobar excitation mechanism to the pp → {pp} s π0 reaction. Phys. Part. Nuclei 48, 927–928 (2017). https://doi.org/10.1134/S1063779617060582

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  • DOI: https://doi.org/10.1134/S1063779617060582

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