Abstract
Considering Coulomb and proximity potentials as barriers, we have calculated the half lives for 12C emission from various Ba isotopes using different mass tables. The half life for 112Ba isotope calculated by us is 6.020×103 s which is comparable with the experimental value 5.620×103 s. From our study it is found that 114Ba is the good parent for 12C emission whose emission rate is favorable for measurement. The half lives predicted by us lie very close to those reported by Shanmugam et al using their cubic plus Yukawa plus exponential model. It is observed that inclusion of proximity potential does not produce significant deviation from the linear nature of the Geiger-Nuttall plots. Also it is found that the neutron excess in the parent nuclei slows down the exotic decay process.
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A Sandulescu, D N Poenaru and W Greiner, Fiz. Elem. Chastits At. Yadra II, 1334 (1980); Sov. J. Part. Nucl. II, 528 (1980)
H J Rose and G A Jones, Nature (London) 307, 245 (1984)
D N Poenaru, W Greiner and R Gherghescu, Phys. Rev. C47, 2030 (1993)
Yu Ts Oganessian, V L Mikheev and S P Tretyakova, report no. E7-93-57 (JINR, Dubna, 1993)
A Guglielmetti, R Bonetti, G Poli, P B Price, A J Westphal, Z Janas, H Keller, R Kirchner, O Klepper, A Piechaczek, E Roeckl, K Schmidt, A Plochocki, J Szerypo and B Blank, Phys. Rev. C52, 740 (1995)
A Guglielmetti, B Blank, R Bonetti, Z Janas, H Keller, R Kirchner, O Klepper, A Piechaczek, A Plochocki, G Poli, P B Price, E Roeckl, K Schmidt, J Szerypo and A J Westphal, Nucl. Phys. A583, 867c (1995)
J Blocki, J Randrup, W J Swiatecki and C F Tsang, Ann. Phys. (N.Y.) 105, 427 (1977)
J Blocki and W J Swiatecki, Ann. Phys. (N.Y.) 132, 53 (1981)
Y J Shi and W J Swiatecki, Nucl. Phys. A438, 450 (1985)
D N Poenaru, M Ivascu, A Sandulescu and W Greiner, Phys. Rev. C32, 572 (1985)
D N Poenaru, W Greiner and E Hourani, Phys. Rev. C51, 594 (1995)
G Shanmugam, G M Carmel, Vigila Bai and B Kamalaharan, Phys. Rev. C51, 2616 (1995)
Satish Kumar and Raj K Gupta, Phys. Rev. C49, 1922 (1994)
S S Malik and Raj K Gupta, Phys. Rev. C39, 1992 (1989)
D N Poenaru, D Schnabel, W Greiner, D Mazilu and I Cata, report no. GSI-90-28 (1990)
Y Aboussir, J M Pearson, A K Dutta and F Tondeur, Nucl. Phys. A549, 155 (1992)
P Moller, W D Myers, W J Swiatecki and J Treiner, At. Data. Nucl. Data Tables 39, 225 (1988)
J Janecke and P J Masson, At. Data. Nucl. Data Tables 39, 265 (1988)
P Moller and J R Nix, At. Data. Nucl. Data Tables 39, 213 (1988)
S Liran and N Zeldes, At. Data. Nucl. Data Tables 17, 431 (1976)
P E Haustein, At. Data. Nucl. Data Tables 39, 185 (1988)
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Santhosh, K.P., Joseph, A. Exotic decay in Ba isotopes via 12C emission. Pramana - J Phys 55, 375–382 (2000). https://doi.org/10.1007/s12043-000-0067-4
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DOI: https://doi.org/10.1007/s12043-000-0067-4