Elastic scattering of a proton–halo nucleus: ⁸B+⁵⁸Ni

 

E.F. Aguileraª*, E. Martinez–Quirozª, P. Rosalesª, D. Lizcanoª, A. Gómez–Camachoª, J.J. Kolata^b, L.O. Lamm^b, V. Guimaraes^c, R. Lichtenthaler^c, O. Camargo^c, F.D. Becchetti^d, H. Jiang^d, P. A. DeYoung^e and P. J. Mears^e

 

ª Departamento de Aceleradores, ININ, Apartado Postal 18–1027, México, D.F. 11801, México, e–mail: efar@nuclear.inin.mx

^b Physics Department, University of Notre Dame, Notre Dame, Indiana, 46556–5670

^c Instituto de Fisica, Universidade de Sao Paulo, P.O. Box 66318, 05389–970 Sao Paulo, SP, Brazil.

^d Physics Department, University of Michigan, Ann Arbor, Michigan, 48109–1120

^e Physics Department, Hope College, Holland, Michigan, 49422–9000

 

Correspondence:
* e–mail: efar@nuclear.inin.mx

 

Recibido el 29 de febrero de 2008
Aceptado el 28 de abril de 2008

 

Abstract

The elastic channel of the ⁸B + ⁵⁸Ni system has been measured at energies around the Coulomb barrier. An optical potential fi to the experimental angular distributions is obtained. The total reaction cross section consistent with the obtained potential is reported and possible deviations from normal behaviour are discussed.

Keywords: Proton halo; elastic scattering.

 

Resumen

Se midió el canal elástico del sistema ⁸B + ⁵⁸Ni a energías alrededor de la barrera Coulombiana. Se obtuvo un ajuste con potencial óptico a las distribuciones angulares experimentales. Se reporta la sección efica total de reacción consistente con el potencial obtenido y se discuten posibles desviaciones de comportamiento normal.

Descriptores: Halo protónico; dispersión elástica.

 

 

PACS: 25.60.–t; 25.60.Pj; 25.70.–z

 

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Acknowledgments

This work has been partially supported by CONACYT (México) and by NSF under Grant No. INT–03–05347 E.F. A. acknowledges the warm hospitality of all personnel at the Notre Dame Nuclear Structure Lab.

 

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