210
K. P. Santhosh
Fig. 15.2 Plot of separation
energy versus mass number
for all the experimentally
synthesized hypernuclei
compared to other theoretical formalisms. Figure 15.2 shows the plot of separation
energy obtained using (15.2) versus mass number of hypernuclei. The agreement
between theoretical predictions and the experimental observations can be seen from
the figure.
Considering to the decay of hypernuclei triggered by strong interaction, we have
studied alpha emission from hyper Po nuclei, alpha, and cluster emission from hyper
Ra nuclei and hyper Ac nuclei using CPPM with the inclusion of a -nucleus potential. The elements Po, Ra, and Ac are well-known members of natural radioactive
series. Since many isotopes of these elements are good alpha emitters, their corresponding hypernuclei may also exhibit alpha decay. The half-lives of alpha emission
from hyper
187−224 Po are calculated. It was found that the isotopes
187−224 Po
exhibit alpha decay. Similarly, while studying the alpha emission from
202−235 Ra
nuclei, it was seen that the alpha half-lives of
202−231 Ra are within the experimental
limit. Also the half-lives for
14 C emission from
217−229 Ra are favorable for measurement. Studies on hyper Ac nuclei showed that
207−234 Ac nuclei are unstable
against alpha decay. It is also seen that
14 C emission from
218−229 Ac are favorable
for measurement. Figure 15.3 gives the plot for neutron number versus log 10 T 1/2 of
various alpha emitting isotopes of hyper Po, hyper Ra, and hyper Ac. The
14 C emission from various isotopes of hyper Ra and hyper Ac is depicted in Fig. 15.4. The
proton and neutron shell closures at Z = 82 and N = 126 are revealed through the
hypernuclear decay studies.
The decay modes of SHE
302−304,306 121 are investigated by comparing the αdecay half-lives with the spontaneous fission half-lives and the calculated values
are shown in Table 15.1. The α-decay half-lives are calculated using MGLDM [48]
and SF half-lives calculated using semi-empirical relation given by Santhosh et al.
[49]. The nuclei with α-decay half-lives shorter than spontaneous fission half-lives
will survive fission and hence decay through α emission. It is found that isotopes
306,304−302 121 exhibit 3 alpha chains followed by SF.
K. P. Santhosh
Fig. 15.2 Plot of separation
energy versus mass number
for all the experimentally
synthesized hypernuclei
compared to other theoretical formalisms. Figure 15.2 shows the plot of separation
energy obtained using (15.2) versus mass number of hypernuclei. The agreement
between theoretical predictions and the experimental observations can be seen from
the figure.
Considering to the decay of hypernuclei triggered by strong interaction, we have
studied alpha emission from hyper Po nuclei, alpha, and cluster emission from hyper
Ra nuclei and hyper Ac nuclei using CPPM with the inclusion of a -nucleus potential. The elements Po, Ra, and Ac are well-known members of natural radioactive
series. Since many isotopes of these elements are good alpha emitters, their corresponding hypernuclei may also exhibit alpha decay. The half-lives of alpha emission
from hyper
187−224 Po are calculated. It was found that the isotopes
187−224 Po
exhibit alpha decay. Similarly, while studying the alpha emission from
202−235 Ra
nuclei, it was seen that the alpha half-lives of
202−231 Ra are within the experimental
limit. Also the half-lives for
14 C emission from
217−229 Ra are favorable for measurement. Studies on hyper Ac nuclei showed that
207−234 Ac nuclei are unstable
against alpha decay. It is also seen that
14 C emission from
218−229 Ac are favorable
for measurement. Figure 15.3 gives the plot for neutron number versus log 10 T 1/2 of
various alpha emitting isotopes of hyper Po, hyper Ra, and hyper Ac. The
14 C emission from various isotopes of hyper Ra and hyper Ac is depicted in Fig. 15.4. The
proton and neutron shell closures at Z = 82 and N = 126 are revealed through the
hypernuclear decay studies.
The decay modes of SHE
302−304,306 121 are investigated by comparing the αdecay half-lives with the spontaneous fission half-lives and the calculated values
are shown in Table 15.1. The α-decay half-lives are calculated using MGLDM [48]
and SF half-lives calculated using semi-empirical relation given by Santhosh et al.
[49]. The nuclei with α-decay half-lives shorter than spontaneous fission half-lives
will survive fission and hence decay through α emission. It is found that isotopes
306,304−302 121 exhibit 3 alpha chains followed by SF.