# Core excitation effects in the breakup of halo nuclei

## Abstract

The role of core excitation in the structure and dynamics of two-body halo nuclei is investigated. We present calculations for the resonant breakup of {sup 11}Be on protons at an incident energy of 63.7 MeV/nucleon, where core excitation effects were shown to be important. To describe the reaction, we use a recently developed extension of the DWBA formalism which incorporates these core excitation effects within the no-recoil approximation. The validity of the no-recoil approximation is also examined by comparing with DWBA calculations which take into account core recoil. In addition, calculations with two different continuum representations are presented and compared.

- Authors:

- Departamento de FAMN, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla (Spain)
- (Portugal) and Departamento de Fisica, Instituto Superior Tecnico, Universidade Tecnica de Lisboa, Av. Prof. Cavaco Silva, Taguspark (Portugal)
- (United Kingdom)
- (Spain)
- (Spain) and Centro Nacional de Aceleradores, Universidad de Sevilla/Junta de Andalucia, E-41092 Sevilla (Spain)

- Publication Date:

- OSTI Identifier:
- 22075635

- Resource Type:
- Journal Article

- Journal Name:
- AIP Conference Proceedings

- Additional Journal Information:
- Journal Volume: 1491; Journal Issue: 1; Conference: Conference on nuclear structure and dynamics 2012, Opatija (Croatia), 9-13 Jul 2012; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BERYLLIUM 11; BREAKUP REACTIONS; DWBA; EXCITATION; EXCITED STATES; MEV RANGE; NUCLEAR HALOS; NUCLEAR STRUCTURE; PROTON REACTIONS; PROTON-NUCLEON INTERACTIONS; PROTONS; RECOILS; RESONANCE; TWO-BODY PROBLEM

### Citation Formats

```
Moro, A. M., Diego, R. de, Lay, J. A., Crespo, R., Johnson, R. C., Arias, J. M., Gomez-Camacho, J., Centro de Fisica Nuclear, Universidade de Lisboa, Av. Prof. Gama Pinto 2, 1649-003 Lisboa, Physics Department, University of Surrey, Guildford Surrey, GU2 7XH, Departamento de FAMN, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla, and Departamento de FAMN, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla.
```*Core excitation effects in the breakup of halo nuclei*. United States: N. p., 2012.
Web. doi:10.1063/1.4764270.

```
Moro, A. M., Diego, R. de, Lay, J. A., Crespo, R., Johnson, R. C., Arias, J. M., Gomez-Camacho, J., Centro de Fisica Nuclear, Universidade de Lisboa, Av. Prof. Gama Pinto 2, 1649-003 Lisboa, Physics Department, University of Surrey, Guildford Surrey, GU2 7XH, Departamento de FAMN, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla, & Departamento de FAMN, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla.
```*Core excitation effects in the breakup of halo nuclei*. United States. doi:10.1063/1.4764270.

```
Moro, A. M., Diego, R. de, Lay, J. A., Crespo, R., Johnson, R. C., Arias, J. M., Gomez-Camacho, J., Centro de Fisica Nuclear, Universidade de Lisboa, Av. Prof. Gama Pinto 2, 1649-003 Lisboa, Physics Department, University of Surrey, Guildford Surrey, GU2 7XH, Departamento de FAMN, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla, and Departamento de FAMN, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla. Sat .
"Core excitation effects in the breakup of halo nuclei". United States. doi:10.1063/1.4764270.
```

```
@article{osti_22075635,
```

title = {Core excitation effects in the breakup of halo nuclei},

author = {Moro, A. M. and Diego, R. de and Lay, J. A. and Crespo, R. and Johnson, R. C. and Arias, J. M. and Gomez-Camacho, J. and Centro de Fisica Nuclear, Universidade de Lisboa, Av. Prof. Gama Pinto 2, 1649-003 Lisboa and Physics Department, University of Surrey, Guildford Surrey, GU2 7XH and Departamento de FAMN, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla and Departamento de FAMN, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla},

abstractNote = {The role of core excitation in the structure and dynamics of two-body halo nuclei is investigated. We present calculations for the resonant breakup of {sup 11}Be on protons at an incident energy of 63.7 MeV/nucleon, where core excitation effects were shown to be important. To describe the reaction, we use a recently developed extension of the DWBA formalism which incorporates these core excitation effects within the no-recoil approximation. The validity of the no-recoil approximation is also examined by comparing with DWBA calculations which take into account core recoil. In addition, calculations with two different continuum representations are presented and compared.},

doi = {10.1063/1.4764270},

journal = {AIP Conference Proceedings},

issn = {0094-243X},

number = 1,

volume = 1491,

place = {United States},

year = {2012},

month = {10}

}

DOI: 10.1063/1.4764270

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