Quasiparticle-rotor model description of carbon isotopes

In this work we perform quasiparticle-rotor coupling model calculations within the usual BCS and the projected BCS for the carbon isotopes <SUP>15</SUP>C, <SUP>17</SUP>C and <SUP>19</SUP>C using <SUP>13</SUP>C as the building block. Owing to the pairin...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Tarutina, Tatiana, Samana, Arturo Rodolfo, Krmpotić, Francisco, Hussein, M. S.
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2006
Materias:	Ciencias Exactas 13C, 15C, 17C, 19C nuclei Core excitation Energy spectra Particle projected BCS model Quasiparticle-rotor model
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/83243
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

Descripción
Sumario:	In this work we perform quasiparticle-rotor coupling model calculations within the usual BCS and the projected BCS for the carbon isotopes <SUP>15</SUP>C, <SUP>17</SUP>C and <SUP>19</SUP>C using <SUP>13</SUP>C as the building block. Owing to the pairing correlation, we find that <SUP>13</SUP>C as well as the cores of the other isotopes, namely <SUP>14</SUP>C, <SUP>16</SUP>C and <SUP>18</SUP>C acquire strong and varied deformations. The deformation parameter is large and negative for <SUP>12</SUP>C, very small (or zero) for <SUP>14</SUP>C and large and positive for <SUP>16</SUP>C and <SUP>18</SUP>C. This finding casts a doubt about the purity of the supposed simple one-neutron halo nature of <SUP>19</SUP>C.