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Superheavy isotopes are highly neutron rich nuclei in the vicinity of neutron drip-line, stabilized by shell effect against the instability due to repulsive component of nuclear force, analogous to superheavy elements similarly stabilized…

Nuclear Theory · Physics 2007-05-23 L. Satpathy , S. K. Patra , R. K. Choudhury

Ternary fission probabilities for thermal neutron induced fission of plutonium are analyzed within the framework of an evaporation-based model where the complexity of time-varying potentials, associated with the neck collapse, are included…

Nuclear Theory · Physics 2008-11-26 J. P. Lestone

Background: A quantitative microscopic understanding of the fission-fragment yield distributions represents a major challenge for nuclear theory as it involves the intricate competition between large-amplitude nuclear collective motion and…

Nuclear Theory · Physics 2022-02-02 Jhilam Sadhukhan , Samuel A. Giuliani , Witold Nazarewicz

Fusion dynamics and the onset of quasi-fission in reactions, leading to production of superheavy nuclei are investigated using the constrained molecular dynamics model. Constraints on the parameters of the nuclear equation of state are…

Nuclear Theory · Physics 2020-01-08 J. Klimo , M. Veselsky , G. A. Souliotis , A. Bonasera

Following the formation of an excited muonic atom, inner shell transitions may proceed without photon emission by inverse internal conversion, i.e. the muonic excitation energy is transferred to the nucleus. In actinides, the 2p -> 1s and…

Nuclear Theory · Physics 2007-05-23 Volker E. Oberacker , A. Sait Umar , Feodor F. Karpeshin

Theoretical uncertainties in the predictions of inner fission barrier heights in superheavy elements have been investigated in a systematic way for a set of state-of-the-art covariant energy density functionals which represent major classes…

Nuclear Theory · Physics 2017-05-31 S. E. Agbemava , A. V. Afanasjev , D. Ray , P. Ring

An overview is given on some of the main advances in experimental methods, experimental results and theoretical models and ideas of the last years in the field of nuclear fission. New experimental approaches extended the availability of…

Nuclear Theory · Physics 2019-01-16 Karl-Heinz Schmidt , Beatriz Jurado

A dynamic model for failures in biological organisms is proposed and studied both analytically and numerically. Each cell in the organism becomes dead under sufficiently strong stress, and is then allowed to be healed with some probability.…

Cell Behavior · Quantitative Biology 2009-11-11 J. Choi , M. Y. Choi , B. -G. Yoon

We investigate the post-explosion phase in core-collapse supernovae with 2D hydrodynamical simulations and a simple neutrino treatment. The latter allows us to perform 46 simulations and follow the evolution of the 32 successful explosions…

High Energy Astrophysical Phenomena · Physics 2021-11-03 M. Witt , A. Psaltis , H. Yasin , C. Horn , M. Reichert , T. Kuroda , M. Obergaulinger , S. M. Couch , A. Arcones

The fission of highly excited compound nuclei formed in heavy ion induced fusion reactions has emerged as a topic of considerable interest in the recent years. Dissipative dynamical models based on the Langevin equation were developed and…

Nuclear Theory · Physics 2007-05-23 Gargi Chaudhuri

The predictions on the mode of decay of the odd-even and odd-odd isotopes of heavy and superheavy nuclei with Z = 99-129, in the range 228 \leg A \leg 336, have been done within the Coulomb and proximity potential model for deformed nuclei…

Nuclear Theory · Physics 2015-06-24 K. P. Santhosh , B. Priyanka

An Antisymmetrized Molecular Dynamics model is used to explore the collision of $^{114}$Cd projectiles with $^{92}$Mo target nuclei at E/A=50 MeV over a broad range in impact parameter. The atomic number (Z), velocity, and emission pattern…

Nuclear Theory · Physics 2009-11-11 S. Hudan , R. T. deSouza , A. Ono

The binding energies and proton separation energies of nuclides with $Z, N = 30-50$ are investigated, based on the shell model with an uncertainty analysis through statistical methods. Several formulas are used to obtain the binding…

Nuclear Theory · Physics 2022-05-06 Boshuai Cai , Guangshang Chen , Cenxi Yuan , Jianjun He

Lifetimes for the lowest three transitions in the nucleus $^{120}$Xe have been measured using the Recoil Distance Technique. Our data indicate that the lifetime for the $2_{1}^{+} \to 0_{1}^{+}$ transition is more than a factor of two lower…

Nuclear Experiment · Physics 2009-09-25 J. C. Walpe , B. F. Davis , S. Naguleswaran , W. Reviol , U. Garg , Xing-Wang Pan , Da Hsuan Feng , J. X. Saladin

Understanding the dynamics of equilibration processes in quantum systems as well as their interplay with dissipation and fluctuation is a major challenge in quantum many-body theory. The timescales of such processes are investigated in…

Nuclear Theory · Physics 2020-06-24 C. Simenel , K. Godbey , A. S. Umar

Quantum mechanics predicts that the decay rate of unstable systems could be effectively modified by the process of the measurement of the survival probability. Depending on the intrinsic properties of the unstable system and the…

High Energy Physics - Phenomenology · Physics 2020-03-11 Francesco Giacosa , Giuseppe Pagliara

Lifetime values for alpha decay in even-even nuclei with $Z=84-98$ and $N=128-152$ have been calculated in the superasymmetric fission model. The interaction between the alpha particle and the daughter nucleus has been formed in the double…

Nuclear Theory · Physics 2008-11-26 Madhubrata Bhattacharya , Subinit Roy , G. Gangopadhyay

We performed a detailed analysis and the Monte Carlo simulation of the neutron lifetime experiment [S. Arzumanov et al., Phys. Lett. B 483 (2000) 15] because of the strong disagreement by 5.6 standard deviations between the results of this…

Nuclear Experiment · Physics 2014-11-21 A. K. Fomin , A. P. Serebrov

The key numbers useful for describing the fission process are the mass number of the primordial cluster of the fissioning system and the magic mass numbers 82 and 126 of the nascent light and heavy fragments. The mean mass number and the…

Nuclear Experiment · Physics 2012-01-19 G. Mouze , C. Ythier

Within the recently developed five-dimensional Langevin approach for the description of fission of heavy nuclei, we have calculated the fission fragments mass and kinetic energy distributions for the fission of $^{180}$Hg and $^{190}$Hg…

Nuclear Theory · Physics 2025-03-06 F. A. Ivanyuk , C. Schmitt , C. Ishizuka , S. Chiba