134 citations · 1k across the 75 of their papers we have counts for
6 papers · 1 filter
Eta meson rescattering effects in the p + 6Li --> eta + 7Be reaction near threshold
N. J. Upadhyay, N. G. Kelkar, B. K. Jain
The p + 6Li --> eta + 7Be reaction has been investigated with an emphasis on the eta meson and 7Be interaction in the final state. Considering the 6Li and 7Be nuclei to be alpha-d…
Quantum Reflection of S-wave Unstable States
N. G. Kelkar
The phase time in quantum tunneling can be disentangled into a dwell time plus a term arising due to the interference of the reflected and incident waves in front of the barrier. T…
Long Tail of Quantum Decay from Scattering Data
M. Nowakowski, N. G. Kelkar
Whereas the short time behaviour of an unstable quantum mechanical system is well understood from its theoretical as well as experimental side, the long time tail of the very same…
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-…