48 citations · 151 across the 13 of their papers we have counts for
13 papers
Low-pressure THGEM-based operation with Ne+H2 Penning mixtures
J. S. Randhawa, T. Ahn, J. J. Kolata +2
The operation of Thick Gas Electron Multipliers (THGEMs) in Time Projection Chambers (TPCs) using various gas mixtures has applications in various nuclear and particle physics expe…
The role of low-lying resonances for Be(p,) reaction rate and implications for the formation of the Solar System
A. Sieverding, J. S. Randhawa, D. Zetterberg +5
Evidence for the presence of short-lived radioactive isotopes when the Solar System formed is preserved in meteorites, providing insights into the conditions at the birth of our Su…
Proton inelastic scattering reveals deformation in He
M. Holl, R. Kanungo, Z. H. Sun +27
A measurement of proton inelastic scattering of He at ~MeV at TRIUMF shows a resonance at 3.54(6)~MeV with a width of 0.89(11)~MeV. The energy of the state is in good ag…
First direct measurement of Cu(p,)Ni: A step towards constraining the Ni-Cu cycle in the Cosmos
J. S. Randhawa, R. Kanungo, J. Refsgaard +34
Reactions on the proton-rich nuclides drive the nucleosynthesis in Core-Collapse Supernovae (CCSNe) and in X-ray bursts (XRBs). CCSNe eject the nucleosynthesis products to the inte…
The Notre-Dame Cube: An active-target time-projection chamber for radioactive beam experiments and detector development
T. Ahn, J. S. Randhawa, S. Aguilar +20
Active-target detectors have the potential to address the difficulties associated with the low intensities of radioactive beams. We have developed an active-target detector, the No…
A technique for the study of (p,n) reactions with unstable isotopes at energies relevant to astrophysics
P. Gastis, G. Perdikakis, G. P. A. Berg +20
We have developed and tested an experimental technique for the measurement of low-energy (p,n) reactions in inverse kinematics relevant to nuclear astrophysics. The proposed setup…
Spallation-altered accreted compositions for X-ray bursts: Impact on ignition conditions and burst ashes
J. S. Randhawa, Z. Meisel, S. A. Giuliani +5
Dependable predictions of the X-ray burst ashes and light curves require a stringent constraint on the composition of the accreted material as an input parameter. Lower metallicity…
Development of the TIP-HOLE gas avalanche structure for nuclear physics/astrophysics applications with radioactive isotope beams: preliminary results
Jaspreet Singh Randhawa, Marco Cortesi, Wolfgang Mittig +2
We discuss the operational principle and performance of new micro-pattern gaseous detectors based on the multi-layer Thick Gaseous Electron Multiplier (M-THGEM) concept coupled to…
Beam induced space-charge effects in Time Projection Chambers in low-energy nuclear physics experiments
J. S. Randhawa, M. Cortesi, Y. Ayyad +14
Tracking capabilities in Time Projection Chambers (TPCs) are strongly dictated by the homogeneity of the drift field. Ion back-flow in various gas detectors, mainly induced by the…
Direct observation of proton emission in 11Be
Y. Ayyad, B. Olaizola, W. Mittig +30
The elusive decay was observed in Be by directly measuring the emitted protons and their energy distribution for the first time with the prototype Active Tar…
Nuclear spallation in active galaxies
L. C. Gallo, J. S. Randhawa, S. G. H. Waddell +3
A number of works point to the presence of narrow emission features at unusual energies in the X-ray spectra of active galactic nuclei (AGN) or to potentially low iron abundances a…
Observation of excited states in Mg sheds light on nuclear forces and shell evolution
J. S. Randhawa, R. Kanungo, M. Holl +35
The exotic Borromean nucleus Mg with = 8, located at the proton drip-line provides a unique testing ground for nuclear forces and the evolution of shell structure in the…
The nuclear force imprints revealed on the elastic scattering of protons with C
A. Kumar, R. Kanungo, A. Calci +26
How does nature hold together protons and neutrons to form the wide variety of complex nuclei in the universe? Describing many-nucleon systems from the fundamental theory of quantu…