Beta Decay Studies of Nuclides in the Heavy Region

  • M.K. Preethi Rajan PG Department of Physics and Research Centre, Payyanur College, Payyanur-670327, Kerala, India
  • R.K. Biju Department of Physics, Pazhassi Raja NSS College, Mattanur-670702, Kerala, India
  • K.P. Santhosh School of Pure and Applied Physics, Kannur University, Payyanur Campus-670702, Kerala, India
Keywords: Beta decay, Mass Parabola, Nuclides


In the present work we studied the β-decay of various isotopes in the heavy region using the empirical formula of Fiset and Nix. It is found from the half-life that as the neutron number increases the possibility of β-decay increases. From the dependence of beta decay half-life on neutron number of parent and Q-value, we modified empirical formula of Fiset and Nix for beta decay half-life. We also developed an empirical formula for the Z-value of most stable isobar against β-decay. From the study of mass parabola for different isobars with mass number ranging from 200-223 it was found that the lowest point in the parabola, which is the Z-value of most stable isobar against β-decay, matches well with our formula predictions.


Download data is not yet available.


J. Konya and N.M. Nagy, Nuclear and Radiochemistry. Elsevier, 2012, p. 74.

K.S. Krane, Introductory Nuclear Physics. New York: Wiley, 1987.

W.N. Cottingham and D.A. Greenwood, An introduction to Nuclear Physics. UK: Cambridge University Press, 1986, p. 40.

L.W. Alvarez, Phys. Rev. 52, 134 (1937).

L.W. Alvarez, Phys. Rev. 53, 606 (1938).

L.W. Alvarez, Phys. Rev. 54, 486 (1938).

J. Engel, M. Bender, J. Dobaczewski, W. Nazarewicz and R. Surman, Phys. Rev. C 60, 014302 (1999).

P. Moller, J. R. Nix and K.-L. Kratz, At. Data Nucl. Data Tables 66, 131 (1997).

P. Moller, B. Pfeiffer and K.-L. Kratz, Phys. Rev. C 67, 055802 (2003).

I.N. Borzov, S. Goriely and J.M. Pearson, Nucl. Phys. A 621, 307 (1997).

H. Li and Z. Ren, J. Phys. G: Nucl. Part. Phys. 40, 105110 (2013).

O. Sorlin, C. Donzaud, L. Axelsson, M. Belleguic, R. Béraud, C. Borcea, G. Canchel, E. Chabanat, J.M. Daugas, A. Emsallem, D. Guillemaud-Mueller, K.-L. Kratz, S. Leenhardt, M. Lewitowicz, C. Longour, M.J. Lopez, F. de

Oliveira Santos, L. Petizon, B. Pfeiffer, F. Pougheon, M.G. Saint-Laurent and J.E. Sauvestre, Nucl. Phys. A 660, 3 (1999).

S. Nishimura et al., Phys. Rev. Lett. 106, 052502 (2011).

M.K. Preethi Rajan, R.K. Biju and K. P. Santhosh, J. of Nucl. Phys., Mat. Sciences, Radiation and Application 3, 165 (2016).

M.K. Preethi Rajan, R.K. Biju and K.P. Santhosh, DAE BRNS Symp. on Nucl. Phys. 59, 156 (2014).

E.O. Fiset and J.R. Nix, Nucl. Phys. A 193, 647 (1972).

P.A. Seeger, W.A. Fowler and D.D. Clayton, Astrophys. J. suppl. 11, 121 (1965).

G. Audi, A.H. Wapstra and C. Thibault, Nucl. Phys. A 729, 337 (2003).

How to Cite
Rajan, M. K. P.; Biju, R. K.; Santhosh, K. P. Beta Decay Studies of Nuclides in the Heavy Region. J. Nucl. Phy. Mat. Sci. Rad. A. 2020, 8, 43-53.