Projectile target combination to synthesis superheavy nuclei Z = 126

Manjunatha, H. C.; Sridhar, K.N.

doi:10.1016/j.nuclphysa.2017.03.007

Cited by 46 publications

(3 citation statements)

References 24 publications

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“…We have parameterized the fusion barrier heights V B as a function of Z 1 Z 2 =R par B 1−1=R par B ð Þ , similar to the one reported by earlier workers [9][10][11][12][13][14][15][16][17]. The first part is the coulomb contribution whereas the second part is the reduction due to the nuclear potential.…”

Section: Parameterization Of Fusion Barrier Heights (V B )mentioning

confidence: 99%

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Ti-Induced Fusion Reactions to Synthesis Superheavy Elements

Manjunatha

Sridhar

2019

Braz J Phys

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We have studied the Ti-induced fusion reactions for the synthesis of superheavy elements with atomic number in the range 104 ≤ Z ≤ 130 for all projectile target combinations. We have obtained a semi-empirical formula for fusion barrier heights (V B), positions (R B), curvatures of the inverted parabola (ħω) of Ti-induced fusion reactions for the synthesis of superheavy nuclei with atomic number in the range 104 ≤ Z ≤ 130 for all projectile target combinations. The present pocket formula produces fusion barrier characteristics of Ti-induced fusion reactions for the synthesis of superheavy nuclei with the simple inputs of the mass number (A) and the atomic number (Z) of the projectile and the target. We have also studied the compound nucleus formation probability, survival probability, and evaporation residue cross-sections of all possible Ti-induced fusion reactions to synthetize superheavy element. The fusion reaction having high survival probability and evaporation residue cross-sections is considered to be possible fusion reaction to synthetize superheavy elements. We have identified the most probable Ti-induced fusion reactions to synthesize superheavy elements of atomic number in the range Z = 104-126. Our predictions may be a guide for the future experiments in the synthesis of more superheavy elements using Ti-induced fusion reactions.

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Section: Parameterization Of Fusion Barrier Heights (V B )mentioning

confidence: 99%

“…The superheavy elements 113 and 115 were synthesized simultaneously in the reaction 243 Am + 48 Ca [6,7]. Most of the models also suggest that the fusion cross-section is low for projectiles heavier than 48 Ca [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Ti-Induced Fusion Reactions to Synthesis Superheavy Elements

Manjunatha

Sridhar

2019

Braz J Phys

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“…To understand the process, a lot of effort has been put in the QF timescale measurements [8][9][10][11][12][13][14][15][16][17][18][19][20] and theoretical studies [21][22][23][24][25][26][27][28][29][30][31]. Though QF timescale measured by the nuclear techniques using the mass-angle distribution [8,9,12,19], the neutron-clock method [10,18] and the giant dipole resonances [11] is in good agreement with the theoretical predictions [21][22][23][24][25][26][27][28][29][30][31], but it being at least two orders of magnitude lower than the values of the order of 10 −18 s as measured by the atomic techniques using the crystal blocking [14][15][16][17] and x-ray fluorescence [13,…”

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On the timescale of quasi fission and Coulomb fission

Nandi¹,

Manjunatha²,

Gupta³

et al. 2021

Preprint

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Coulomb fission mechanism may take place if the maximum Coulomb-excitation energy transfer in a reaction exceeds the fission barrier of either the projectile or target. This condition is satisfied by all the reactions used for the earlier blocking measurements except one reaction 208 Pb + Natural Ge crystal, where the measured timescale was below the measuring limit of the blocking measurements < 1 as. Hence, inclusion of the Coulomb fission in the data analysis of the blocking experiments leads us to interpret that the measured time longer than a few attoseconds (about 2-2.5 as) is nothing but belonging to the Coulomb fission timescale and shorter than 1 as are due to the quasifission. Consequently, this finding resolves the critical discrepancies between the fission timescale measurements using the nuclear and blocking techniques. This, in turn, validates the fact that the quasifission timescale is indeed of the order of zeptoseconds in accordance with the nuclear experiments and theories. It thus provides a radical input in understanding the reaction mechanism for heavy element formation via fusion evaporation processes.

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Possible syntheses of unknown superheavy 309,312126 nuclei

Hưng

Hao

et al. 2020

J Radioanal Nucl Chem

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Projectile target combination to synthesis superheavy nuclei Z = 126

Cited by 46 publications

References 24 publications

Ti-Induced Fusion Reactions to Synthesis Superheavy Elements

Ti-Induced Fusion Reactions to Synthesis Superheavy Elements

On the timescale of quasi fission and Coulomb fission

Possible syntheses of unknown superheavy 309,312126 nuclei

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