Proximity potential for heavy ion reactions on deformed nuclei

“…The proximity potential of Blocki et al, [73,74], which describes the interaction between two pure spherically symmetric fragments, has one term based on the first approximation of the folding procedure and the two-term proximity potential of Baltz et al,(equation (11) of [80]) includes the second component as the second approximation of the more accurate folding procedure. The authors have shown that the twoterm proximity potential is in excellent agreement with the folding model for heavy ion reaction, not only in shape but also in absolute magnitude (see figure 3 of [80]). The two-term proximity potential for interaction between a deformed and spherical nucleus is given by Baltz et al, [80] …”

Section: β βmentioning

confidence: 99%

Predictions on the alpha decay half lives of superheavy nuclei with Z= 113 in the range 255 ≤A≤ 314

Santhosh¹,

Augustine²,

Nithya³

et al. 2016

Nuclear Physics A

View full text Add to dashboard Cite

show abstract

“…The two-term proximity potential for interaction between a deformed and spherical nucleus is given by Baltz et al, [40] …”

Section: β βmentioning

confidence: 99%

Predictions on the alpha decay chains of superheavy nuclei with Z = 121 within the range 290 ≤ A ≤ 339

Santhosh

Nithya

2016

Int. J. Mod. Phys. E

View full text Add to dashboard Cite

A systematic study on the alpha decay half lives of various isotopes of superheavy element Z = 121 within the range 290 ≤ A ≤ 339 is presented for the first time using Coulomb and proximity potential model for deformed nuclei (CPPMDN). The calculated α decay half lives of the isotopes within our formalism match well with the values computed using ViolaSeaborg systematic, Universal curve of Poenaru et al., and the analytical formula of Royer. In our study by comparing the α decay half lives with the spontaneous fission half lives, we have predicted 2α chain from 309, 311, 312 121, 3α chain from 310 121 and 1α chain from 313, 314 121. Clearly our study shows that the isotopes of superheavy element Z = 121 within the mass range 309 ≤ A ≤ 314 will survive fission and can be synthesized and detected in the laboratory via alpha decay. We hope that our predictions will provide a new guide to future experiments. * email: drkpsanthosh@gmail.com IntroductionUnderstanding the physical as well as the chemical properties of superheavy elements has now become one of the hardest challenges in nuclear science. The search for heavy and superheavy elements started in 1940s with the synthesis of neptunium (Z = 93) at Lawrence Berkeley Laboratory in Berkeley (USA) [1]. The process of synthesizing nuclei beyond uranium via nuclear reactions is a challenging one because the isotopes of elements with Z > 92 are too short lived to be detected. However theoretical results have led to the prediction of an "island of stability [2-6]" for superheavy elements, which should have half lives ranging from minutes to several years. The discovery of shell structure directs to the question "whether the shell effects can stabilize nuclei to exist in regions of macroscopic instability". Superheavy elements (SHE) usually refers to the elements far beyond uranium and the major aim of superheavy element research is the investigation of nuclear matter under large Coulomb force. The search for island of stability has led to the synthesis of elements up to Z =118, thereby confirming the existence of magic island which is the most demanding topic in heavy ion research.Recently the isotopes of superheavy elements are produced via hot and cold fusion reactions. Heavy ion accelerators which deliver intense heavy ion beams are used for the complete fusion of heavy ions. The cold fusion reaction [7] opened up ways for the synthesis of SHN with Z = 107-112 [8], at GSI, Darmstadt and RIKEN, Japan whereas hot fusion reaction [9] has been successful in the synthesis of at JINR-FLNR, Dubna. An attempt for the production of the superheavy element with Z = 120 [10] through hot fusion reaction was done by Oganessian et al. in 2009. Theoretical efforts on the predictions of various properties of SHN had acquired exciting progress in the last two decades. Many of these studies suggested favorable candidates for magic numbers, next to the presently known Z = 82 and N = 126. Phenomenological models such as finite range droplet model (FRDM) predicts shell clo...

show abstract

Proximity potential for heavy ion reactions on deformed nuclei

Cited by 94 publications

References 7 publications

The emission probabilities of long range alpha particles from even–even^244–252Cm isotopes

The emission probabilities of long range alpha particles from even–even^244–252Cm isotopes

Predictions on the alpha decay half lives of superheavy nuclei with Z= 113 in the range 255 ≤A≤ 314

Predictions on the alpha decay chains of superheavy nuclei with Z = 121 within the range 290 ≤ A ≤ 339

Contact Info

Product

Resources

About

Proximity potential for heavy ion reactions on deformed nuclei

Cited by 94 publications

References 7 publications

The emission probabilities of long range alpha particles from even–even244–252Cm isotopes

The emission probabilities of long range alpha particles from even–even244–252Cm isotopes

Predictions on the alpha decay half lives of superheavy nuclei with Z= 113 in the range 255 ≤A≤ 314

Predictions on the alpha decay chains of superheavy nuclei with Z = 121 within the range 290 ≤ A ≤ 339

Contact Info

Product

Resources

About

The emission probabilities of long range alpha particles from even–even^244–252Cm isotopes

The emission probabilities of long range alpha particles from even–even^244–252Cm isotopes