activity
20102025
most citedPrecision Mass Measurements beyond Sn: Anomalous behaviour of odd-even staggering of binding energies

91 citations · 512 across the 28 of their papers we have counts for

collaborators

30 papers

nucl-ex2025

Potential absence of observed linear-chain structures in O via C() resonant scattering

J. Bishop, A. Hollands, Tz. Kokolova +14

Background: The preference for light nuclear systems to coagulate into -particle clusters has been well-studied. The possibility of a linear chain configuration of -particles…

nucl-ex2024

First Experimental Test of the Ratio Method

S. Ota, P. Capel, G. Christian +9

The ratio is a new reaction observable suggested to extract accurately structure information on halo nuclei. It corresponds to the ratio of differential cross sections for scatteri…

nucl-ex2024

First experimental test of the ratio method for nuclear-reaction analysis

S. Ota, P. Capel, G. Christian +9

Nuclear halos are very exotic quantal structures observed far from stability. Because of their short lifetime, they are mostly studied through reactions. The ratio method offers a…

nucl-ex2024

Cluster structure of 3+p states in N

J. Bishop, G. V. Rogachev, S. Ahn +16

Background: Cluster states in N are extremely difficult to measure due to the unavailability of B+ elastic scattering data. Purpose: Using -delayed charged-parti…

nucl-ex2023★ 6 cited

Radiative decay branching ratio of the Hoyle state

Zifeng Luo, M. Barbui, J. Bishop +9

Background: The triple-alpha process is a vital reaction in nuclear astrophysics, characterized by two consecutive reactions [] t…

physics.ins-det2023

BlueSTEAl: A pair of silicon arrays and a zero-degree phoswich detector for studies of scattering and reactions in inverse kinematics

Shuya Ota, Greg Christian, Ben J. Reed +7

BlueSTEAl, the Blue (aluminum chamber of) Silicon TElescope Arrays for light nuclei,has been developed to study direct reactions in inverse kinematics, as well as scattering and br…

physics.ins-det2023★ 3 cited

Silicon tracker array for RIB experiments at SAMURAI

A. I. Stefanescu, V. Panin, L. Trache +49

This work describes a silicon tracker system developed for experiments with proton-rich radioactive ion beams at the SAMURAI superconducting spectrometer of RIBF at RIKEN. The syst…

nucl-ex2023★ 9 cited

First observation of the 3p decay of via -delayed charged-particle spectroscopy

Jack Bishop, G. V. Rogachev, S. Ahn +16

Background: The -delayed proton-decay of has previously been studied, but the direct observation of -delayed +++p decay has not been reported. Purp…

nucl-ex2022★ 1 cited

alpha-cluster structure of 18Ne

M. Barbui, A. Volya, E. Aboud +15

In this work we study alpha-clustering in 18Ne and compare it with what is known about clustering in the mirror nucleus 18O. The excitation function of 18Ne was measured in inverse…

nucl-ex2021★ 18 cited

Study of (Li, ) and (Li, ) reactions on Ne and implications for -process nucleosynthesis

S. Ota, G. Christian, W. N. Catford +20

We studied cluster states in Mg via the Ne(Li,)Mg reaction in inverse kinematics at an energy of MeV/nucleon. States between = 4 - 12 M…

nucl-ex2020★ 21 cited

Almost medium-free measurement of the Hoyle state direct-decay component with a TPC

J. Bishop, G. V. Rogachev, S. Ahn +14

Background: The structure of the Hoyle state, a highly -clustered state at 7.65 MeV in , has long been the subject of debate. Understanding if the system compri…

nucl-ex2020★ 14 cited

Evidence against the Efimov effect in from spectroscopy and astrophysics

J. Bishop, G. V. Rogachev, S. Ahn +16

Background: The Efimov effect is a universal phenomenon in physics whereby three-body systems are stabilized via the interaction of an unbound two-body sub-systems. A hypothetical…

nucl-ex2020★ 6 cited

Search for the high-spin members of the :2n: band in Be

Sriteja Upadhyayula, Grigory V. Rogachev, Jack Bishop +9

Method: Measuring excitation functions for He+ scattering, populating states in the excitation energy range from 4.5 MeV to 8 MeV in Be using a He rare-isotope…

nucl-ex2020★ 29 cited

Constraining the Ne(,)Mg and Ne(,n)Mg reaction rates using sub-Coulomb -transfer reactions

H. Jayatissa, G. V. Rogachev, V. Z. Goldberg +9

The Ne(,)Mg and Ne(,n)Mg reactions play an important role in astrophysics because they have significant influence on the neutron flux during th…

nucl-ex2020★ 24 cited

Decay properties of resonances and their impact on -process nucleosynthesis

S. Ota, G. Christian, G. Lotay +15

The astrophysical -process is one of the two main processes forming elements heavier than iron. A key outstanding uncertainty surrounding -process nucleosynthesis is the neut…

physics.ins-det2019★ 6 cited

A study in using MICROMEGAS to improve particle identification with the TAMU-MDM focal plane detector

Alexandra Spiridon, Emmanuel Pollacco, Antti Saastamoinen +5

A MICROMEGAS detection amplifier has been incorporated into the design of the TAMU MDM focal plane detector with the purpose of improving the energy resolution and thus, the partic…

physics.ins-det2019★ 51 cited

Texas Active Target (TexAT) detector for experiments with rare isotope beams

E. Koshchiy, G. V. Rogachev, E. Pollacco +14

The TexAT (Texas Active Target) detector is a new active-target time projection chamber (TPC) that was built at the Cyclotron Institute Texas AM University. The detector is des…

nucl-ex2019★ 6 cited

Determining the average prompt-fission-neutron multiplicity for Pu(,) via a Pu(,) surrogate reaction

B. S. Wang, J. T. Burke, O. A. Akindele +7

The average prompt-fission-neutron multiplicity is of significance in the areas of nuclear theory, nuclear nonproliferation, and nuclear energy. In this work, the surrogate…

physics.ins-det2019★ 14 cited

GADGET: A Gas Amplifier Detector with Germanium Tagging

Moshe Friedman, David Pérez-Loureiro, Tamas Budner +15

The Gas Amplifier Detector with Germanium Tagging (GADGET) is a new detection system devoted to the measurement of weak, low-energy -delayed proton decays relevant for nuclear a…

nucl-ex2019★ 13 cited

Structure of 9C through proton resonance scattering with Texas Active Target detector

J. Hooker, G. V. Rogachev, E. Koshchiy +9

Background: Level structure of the most neutron deficient nucleon-bound carbon isotope, 9C, is not well known. Definitive spin-parity assignments are only available for two excited…

nucl-ex2018★ 5 cited

Precise half-life measurement of the superallowed emitter 30S

V. E. Iacob, J. C. Hardy, L. Chen +6

We have measured the half-life of 30S, the parent of a superallowed 0+-to-0+ beta transition, to high precision using very pure sources and a 4pi proportional gas counter to detect…

nucl-ex2014★ 19 cited

Sizeable beta-strength in 31Ar(beta-3p) decay

G. T. Koldste, B. Blank, M. J. G. Borge +18

We present for the first time precise spectroscopic information on the recently discovered decay mode beta-delayed 3p-emission. The detection of the 3p events gives an increased se…

nucl-ex2014★ 6 cited

Coulomb displacement energies as a probe for nucleon pairing in the shell

A. Kankainen, T. Eronen, D. Gorelov +8

Coulomb displacement energies of mirror nuclei have been studied via a series of high-precision -value measurements with the double Penning trap mass spectro…

nucl-ex2014★ 23 cited

Multi-particle emission in the decay of 31Ar

G. T. Koldste, B. Blank, M. J. G. Borge +20

A multi-hit capacity setup was used to study the decay of the dripline nucleus 31Ar, produced at the ISOLDE facility at CERN. A spectroscopic analysis of the beta-delayed three-pro…