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6 papers · 1 filter
Study of the Interaction Near Threshold in Fusion
N. J. Upadhyay, N. G. Kelkar, K. P. Khemchandani +1
We present a calculation for production in the fusion near threshold including the final state interaction (FSI). We consider the and nuclei as…
Quantum time scales in alpha tunneling
N. G. Kelkar, H. M. Castaneda, M. Nowakowski
The theoretical treatment of alpha decay by Gamow is revisited by investigating the quantum time scales in tunneling. The time spent by an alpha particle in front of the barrier an…
Analysis of averaged multichannel delay times
N. G. Kelkar, M. Nowakowski
The physical significances and the pros and cons involved in the usage of different time delay formalisms are discussed. The delay time matrix introduced by Eisenbud, where only s-…
Comment on "Hadronic He production near threshold"
K. P. Khemchandani, N. G. Kelkar, B. K. Jain
Measurements of the differential and total cross sections for the He reaction at five energies were recently reported [Phys. Rev. C {\bf 75}, 014004 (2007)] and com…
Critical view of WKB decay widths
N. G. Kelkar, H. M. Castaneda
A detailed comparison of the expressions for the decay widths obtained within the semiclassical WKB approximation using different approaches to the tunneling problem is performed.…
A study of the reaction
N. J. Upadhyay, K. P. Khemchandani, B. K. Jain +1
A study of the reaction in the energy range where the recent data from Uppsala are available, is done in the two-step model of production including the final st…