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Characterization of vorticity in pygmy resonances and soft-dipole modes with two-nucleon transfer reactions

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Abstract.

The properties of the two-quasiparticle-like soft E1-modes and Pygmy Dipole Resonances (PDR) have been and are systematically studied with the help of inelastic and electromagnetic experiments which essentially probe the particle-hole components of these vibrations. It is shown that further insight in their characterisation can be achieved with the help of two-nucleon transfer reactions, in particular concerning the particle-particle components of the modes, in terms of absolute differential cross sections which take properly into account successive and simultaneous transfer mechanisms corrected for non-orthogonality, able to reproduce the experimental findings at the 10% level. The process 9Li(t, p)11Li(1-) is discussed, and absolute cross sections predicted.

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Author information

Authors and Affiliations

  1. The Niels Bohr Institute, University of Copenhagen, Blegdamsvej 17, DK-2100, Copenhagen, Denmark

    R. A. Broglia

  2. Dipartimento di Fisica, Università degli Studi Milano, Via Celoria 16, I-20133, Milano, Italy

    R. A. Broglia

  3. Departamento de Fìsica Aplicada III, Escuela Superior de Ingenieros, Universidad de Sevilla, Camino de los Descubrimientos, Sevilla, Spain

    F. Barranco

  4. National Superconducting Cyclotron Laboratory, Michigan State University, 48824, East Lansing, MI, USA

    G. Potel

  5. INFN Sezione di Milano, Via Celoria 16, I-20133, Milano, Italy

    E. Vigezzi

Authors
  1. R. A. Broglia
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  2. F. Barranco
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  3. G. Potel
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  4. E. Vigezzi
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Corresponding author

Correspondence to G. Potel.

Additional information

Communicated by N. Alamanos

Data Availability Statement

This manuscript has no associated data or the data will not be deposited. [Authors’ comment: All relevant data generated during the present study are contained in this paper.]

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Broglia, R.A., Barranco, F., Potel, G. et al. Characterization of vorticity in pygmy resonances and soft-dipole modes with two-nucleon transfer reactions. Eur. Phys. J. A 55, 243 (2019). https://doi.org/10.1140/epja/i2019-12789-y

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