Core excitation contributions to the breakup of the one-neutron halo nucleus {sup 11}Be on a proton

Journal Article · Fri Apr 15 00:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.83.044622· OSTI ID:21499601

Crespo, R ^[1]; Deltuva, A ^[1]; Moro, A M ^[2]

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1. Centro de Fisica Nuclear, Universidade de Lisboa, Av. Prof. Gama Pinto 2, PT-1649-003 Lisboa (Portugal)
2. Departamento de Fisica Atomica, Molecular e Nuclear, Universidad Seville, Universidad de Sevilla, Apartado 1065, ES-41080 Sevilla (Spain)

The effect of the core excitation in the breakup of a one-neutron halo nucleus is studied within two different reaction formalisms, namely, the core excited model and the single-scattering approximation of the three-body Faddeev-Alt-Grassberger-Sandhas equations with target-core potential allowing for the core excitation. As an example, we consider the breakup of {sup 11}Be on a proton target at 63.7 MeV/nucleon incident energy and calculate the semi-inclusive cross section in the excitation energy interval E{sub x}=3.0-5.5 MeV (E{sub rel}=2.5-5 MeV) containing the 3/2{sup +} resonance with dominant contribution of the {sup 10}Be(2{sup +}) core excited state. The effect of the core excitation to the breakup cross section integrated around this resonance is found to be very significant. Moreover, when resonant and nonresonant contributions are added, the resulting semi-inclusive cross section is in reasonable agreement with the existing data, demonstrating the relevance of the core excitation mechanism for this observable. The present calculations also show the importance of incorporating the energy dependence of the core-target transition operators in the reaction formalism.

• OSTI ID: 21499601
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 83, Issue 4; Other Information: DOI: 10.1103/PhysRevC.83.044622; (c) 2011 American Institute of Physics; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
APPROXIMATIONS
BERYLLIUM 10
BERYLLIUM 11
COMPUTERIZED SIMULATION
CROSS SECTIONS
ENERGY DEPENDENCE
EQUATIONS
EXCITATION
EXCITED STATES
FADDEEV EQUATIONS
MEV RANGE 10-100
NUCLEAR HALOS
PROTONS
RESONANCE
SCATTERING
ALKALINE EARTH ISOTOPES
BARYONS
BERYLLIUM ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALCULATION METHODS
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FERMIONS
HADRONS
ISOTOPES
LIGHT NUCLEI
MEV RANGE
NUCLEI
NUCLEONS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SIMULATION
YEARS LIVING RADIOISOTOPES