3 papers
nucl-th2026
Universal characterization of Efimovian System via Faddeev Techniques
Ghanashyam Meher, Sourav Mondal, Udit Raha
We demonstrate remnant structural universality in a putative S-wave -halo-bound system in the channel by invoking the zero-coupling limit (ZCL), which elim…
nucl-th2025
A practical approach to perturbative corrections to few-body observables
Sourav Mondal, Martin Schäfer, Mirko Bagnarol +3
We formulate two methods to facilitate the calculation of perturbative corrections to quantum few-body observables. Both techniques are designed for a numerical realization in comb…
nucl-th2024
Scale-(in)dependence in quantum 4-body scattering
Sourav Mondal, Rakshanda Goswami, Udit Raha +1
We investigate the multi-channel 4-body scattering system using regularized 2- and 3-body contact interactions. The analysis determines the sensitivity of bound-state energies, sca…