Possible Alpha and 14C Cluster Emission From Hyper Radium Nuclei in The Mass Region A = 202-235

K. P.  Santhosh; C.  Nithya

doi:10.15415/jnp.2017.42030

Authors

K. P. Santhosh School of Pure and Applied Physics, Kannur University, Swami Anandatheertha Campus, Payyanur 670327, INDIA
C. Nithya School of Pure and Applied Physics, Kannur University, Swami Anandatheertha Campus, Payyanur 670327, INDIA

DOI:

https://doi.org/10.15415/jnp.2017.42030

Keywords:

Cluster, Hyper radium

Abstract

The possibilities for the emission of ⁴He and ¹⁴C clusters from hyper ^202-235_ΛRa are studied using our Coulomb and proximity potential model (CPPM) by including the lambda-nucleus potential. The predicted half lives show that hyper ^202-231_ΛRa nuclei are unstable against ⁴He emission and ¹⁴Cemission from ^{217- 229}_ΛRa are favorable for measurement. Our study also show that hyper Λ202235-Ra are stable against hyper Λ4He and Λ14C emission. The role of neutron shell closure (N = 126) in ²¹³_ΛRn daughter and role of proton and neutron shell closure (Z = 82, N = 126) in Λ209Pb daughter are also revealed. As hyper nuclei decays to normal nuclei by mesonic/non-mesonic decay and since most of the predicted half lives for ⁴He and ¹⁴C emission from normal Ra nuclei are favorable for measurement, we presume that alpha and ¹⁴C cluster emission from hyper Ra nuclei can be detected in laboratory in a cascade (two-step) process.

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