28 citations · 144 across the 12 of their papers we have counts for
12 papers
Precise measurement of and for the 39.8-keV 3 transition in Rh: Test of internal-conversion theory
N. Nica, J. C. Hardy, V. E. Iacob +9
Neutron-activated sources of Ru and Pd both share the isomeric first-excited state in Rh as a daughter product. From independent measurements of both decays…
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…
Precise measurement of alpha_K for the 88.2-keV M4 transition in 127Te: Test of internal-conversion theory
N. Nica, J. C. Hardy, V. E. Iacob +3
We have measured the K-shell internal conversion coefficient, alpha_K, for the 88.2-keV M4 transition from the 106-day isomer to the ground state in 127Te to be 484(6). When compar…
Precise measurement of branching ratios in the beta decay of 38Ca
H. I. Park, J. C. Hardy, V. E. Iacob +8
We present the full description of a measurement of the branching ratios for the beta-decay of 38Ca. This decay includes five allowed 0+ --> 1+ branches and a superallowed 0+ --> 0…
Precision half-life measurement of the \boldmath decay of \tsups{37}K
P. D. Shidling, D. Melconian, S. Behling +8
The half-life of \tsups{37}K has been measured to be , a value nearly an order of magnitude more precise than the best previously reported. The decay…
The beta decay of 38Ca: Sensitive test of isospin symmetry-breaking corrections from mirror superallowed 0+-to-0+ transitions
H. I. Park, J. C. Hardy, V. E. Iacob +8
We report the first branching-ratio measurement of the superallowed 0+-to-0+ beta transition from 38Ca. The result, 0.7728(16), leads to an ft value of 3062.3(68)s with a relative…
Precise measurement of alpha-K for the 65.7-keV M4 transition in 119Sn: Extended test of internal-conversion theory
N. Nica, J. C. Hardy, V. E. Iacob +6
We have measured the K-shell internal conversion coefficient, alpha-K, for the 65.7-keV M4 transition in 119Sn to be 1621(25). This result agrees well with Dirac-Fock calculations…
Precise Half-Life Measurement of the Superallowed Beta+ Emitter 46V
H. I. Park, J. C. Hardy, V. E. Iacob +6
The half-life of 46V has been measured to be 422.66(6) ms, which is a factor of two more precise than the best previous measurement. Our result is also consistent with the previous…
The beta Decay of 32Cl: Precision gamma-Ray Spectroscopy and a Measurement of Isospin-Symmetry Breaking
D. Melconian, S. Triambak, C. Bordeanu +10
Background: Models to calculate small isospin-symmetry-breaking effects in superallowed Fermi decays have been placed under scrutiny in recent years. A stringent test of these mode…
Experimental Validation of the Largest Calculated Isospin-Symmetry-Breaking Effect in a Superallowed Fermi Decay
D. Melconian, S. Triambak, C. Bordeanu +10
A precision measurement of the gamma yields following the beta decay of 32Cl has determined its isobaric analogue branch to be (22.47^{+0.21}_{-0.19})%. Since it is an almost pure…
Precise Half-Life Measurement of the Superallowed Beta+ Emitter 26Si
V. E. Iacob, J. C. Hardy, A. Banu +8
We have measured the half-life of the superallowed 0+ -to- 0+ beta+ emitter 26Si to be 2245.3(7) ms. We used pure sources of 26Si and employed a high-efficiency gas counter, which…
Branching ratios for the beta decay of 21Na
V. E. Iacob, J. C. Hardy, C. A. Gagliardi +8
We have measured the beta-decay branching ratio for the transition from 21Na to the first excited state of 21Ne. A recently published test of the standard model, which was based on…