Eur. Phys. J. A (2005) 25: 227-230
https://doi.org/10.1140/epjad/i2005-06-115-0

ENAM 2004

Anomalous behaviour of matter radii of proton-rich Ga, Ge, As, Se and Br nuclei

¹ Instituto de Fısica-Universidade de S ao Paulo, 05315-970, S ao Paulo, Brazil
² FACENS, Faculdade de Engenharia de Sorocaba, 18001-970, Sorocaba-SP, Brazil
³ GANIL, IN2P3-CNRS/DSM-CEA, 14076, France
⁴ Physics Division, Argonne National Laboratory, 60439, Argonne, IL, USA
⁵ Department of Physics, University of Liverpool, Liverpool, UK
⁶ LPC, IN2P3-CNRS, ISMRA et Université de Caen, 14050, France
⁷ CSNSM, 91405, Orsay Campus, France
⁸ INFN, 95129, Catania, Italy
⁹ IPN Orsay, 91406, France
¹⁰ 91191, Gif-sur-Yvette, France
¹¹ Department of Physics and Astronomy, The Open University, UK
¹² P.O. Box 79, 101000, Moscow, Russia
¹³ NSCL, Michigan State University, 48824-1321, East Lansing, MI, USA
¹⁴ Institut für Physik, Universität Mainz, D-55099, Germany
¹⁵ Los Alamos National Laboratory, 87545, Los Alamos, NM, USA

Received: 13 January 2005
Accepted: 1 March 2005
Published online: 29 June 2005

Abstract

Proton-rich isotopes of Ga, Ge, As, Se and Br had their total reaction cross-sections (σ_R) measured. Root-mean-squared matter radii were determined from Glauber model calculations, which reproduced the experimental σ_R values. For all isotopic series a decrease of the r _rms with increasing neutron number and a correlation with deformation was observed.