437 citations · 4k across the 81 of their papers we have counts for
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First direct Be electron capture -value measurement towards high-precision BSM neutrino physics searches
R. Bhandari, G. Bollen, T. Brunner +12
We report the first direct measurement of the nuclear electron capture (EC) decay -value of Be Li via high-precision Penning trap mass spectrometry (PT…
Fundamental Symmetries, Neutrons, and Neutrinos (FSNN): Whitepaper for the 2023 NSAC Long Range Plan
B. Acharya, C. Adams, A. A. Aleksandrova +176
This whitepaper presents the research priorities decided on by attendees of the 2022 Town Meeting for Fundamental Symmetries, Neutrons and Neutrinos, which took place December 13-1…
'Searching for a needle in a haystack;' A Ba-tagging approach for an upgraded nEXO experiment
H. Rasiwala, K. Murray, Y. Lan +17
nEXO is a proposed experiment that will search for neutrinoless double-beta decay (0) in 5-tonnes of liquid xenon (LXe), isotopically enriched in Xe. A technique calle…
Neutrinoless Double Beta Decay
C. Adams, K. Alfonso, C. Andreoiu +229
This White Paper, prepared for the Fundamental Symmetries, Neutrons, and Neutrinos Town Meeting related to the 2023 Nuclear Physics Long Range Plan, makes the case for double beta…
Collision-Induced Dissociation at TRIUMF's Ion Trap for Atomic and Nuclear science
A. Jacobs, C. Andreoiu, J. Bergmann +26
The performance of high-precision mass spectrometry of radioactive isotopes can often be hindered by large amounts of contamination, including molecular species, stemming from the…
Summit of the N=40 Island of Inversion: precision mass measurements and ab initio calculations of neutron-rich chromium isotopes
R. Silwal, C. Andreoiu, B. Ashrafkhani +24
Mass measurements continue to provide invaluable information for elucidating nuclear structure and scenarios of astrophysical interest. The transition region between the a…
Mapping the Island of Inversion: Precision Mass Measurements of Neutron-rich Fe Isotopes
W. S. Porter, B. Ashrafkhani, J. Bergmann +32
Nuclear properties across the chart of nuclides are key to improving and validating our understanding of the strong interaction in nuclear physics. We present high-precision mass m…
Mass measurements of Ga reduce x-ray burst model uncertainties and extend the evaluated isobaric multiplet mass equation
S. F. Paul, J. Bergmann, J. D. Cardona +27
We report precision mass measurements of neutron-deficient gallium isotopes approaching the proton drip line. The measurements of Ga performed with the TITAN multiple-ref…
NEXO: Neutrinoless double beta decay search beyond year half-life sensitivity
nEXO Collaboration, G. Adhikari, S. Al Kharusi +158
The nEXO neutrinoless double beta decay experiment is designed to use a time projection chamber and 5000 kg of isotopically enriched liquid xenon to search for the decay in $^{136}…
Measurement of the Spectral Shape of the beta-decay of 137Xe to the Ground State of 137Cs in EXO-200 and Comparison with Theory
S. Al Kharusi, G. Anton, I. Badhrees +105
We report on a comparison between the theoretically predicted and experimentally measured spectra of the first-forbidden non-unique -decay transition $^{137}\textrm{Xe}(7/2^-)\t…
Mass Measurements of Neutron-Rich Gallium Isotopes Refine Production of Nuclei of the First r-Process Abundance Peak in Neutron Star Merger Calculations
M. P. Reiter, S. Ayet San Andrés, S. Nikas +33
We report mass measurements of neutron-rich Ga isotopes Ga with TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN). The measurements determine the masses of $^{80-8…
Dawning of the N=32 shell closure seen through precision mass measurements of neutron-rich titanium isotopes
E. Leistenschneider, M. P. Reiter, S. Ayet San Andrés +42
A precision mass investigation of the neutron-rich titanium isotopes Ti was performed at TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN). The range of the measur…
Sensitivity and discovery potential of the proposed nEXO experiment to neutrinoless double beta decay
nEXO Collaboration, J. B. Albert, G. Anton +143
The next-generation Enriched Xenon Observatory (nEXO) is a proposed experiment to search for neutrinoless double beta () decay in Xe with a target half-life sensitivi…
Electroweak Decay Studies of Highly Charged Radioactive Ions with TITAN at TRIUMF
K. G. Leach, I. Dillmann, R. Klawitter +7
Several modes of electroweak radioactive decay require an interaction between the nucleus and bound electrons within the constituent atom. Thus, the probabilities of the respective…
First Search for Lorentz and CPT Violation in Double Beta Decay with EXO-200
200 Collaboration, J. B. Albert, P. S. Barbeau +86
A search for Lorentz- and CPT-violating signals in the double beta decay spectrum of Xe has been performed using an exposure of 100 kgyr with the EXO-200 detector. N…
Cosmogenic Backgrounds to 0νββ in EXO-200
200 Collaboration, J. B. Albert, D. J. Auty +84
As neutrinoless double-beta decay experiments become more sensitive and intrinsic radioactivity in detector materials is reduced, previously minor contributions to the background m…
Search for decay of Xe to the 0 excited state of Ba with EXO-200
200 Collaboration, J. B. Albert, D. J. Auty +88
EXO-200 is a single phase liquid xenon detector designed to search for neutrinoless double-beta decay of Xe to the ground state of Ba. We report here on a search fo…
Measurements of the ion fraction and mobility of alpha and beta decay products in liquid xenon using EXO-200
J. B. Albert, D. J. Auty, P. S. Barbeau +82
Alpha decays in the EXO-200 detector are used to measure the fraction of charged and daughters created from alpha and beta decays, respectiv…
Search for Majorana neutrinos with the first two years of EXO-200 data
200 Collaboration, J. B. Albert, D. J. Auty +91
Many extensions of the Standard Model of particle physics suggest that neutrinos should be Majorana-type fermions, but this assumption is difficult to confirm. Observation of neutr…
Trapped-ion decay spectroscopy towards the determination of ground-state components of double-beta decay matrix elements
T. Brunner, A. Lapierre, C. Andreoiu +17
A new technique has been developed at TRIUMF's TITAN facility to perform in-trap decay spectroscopy. The aim of this technique is to eventually measure weak electron capture branch…
Extinction of the N=20 neutron-shell closure for 32Mg examined by direct mass measurements
A. Chaudhuri, C. Andreoiu, T. Brunner +12
The 'island of inversion' around Mg is one of the most important paradigm for studying the disappearance of the stabilizing 'magic' of a shell closure. We present the first…
New determination of double-beta-decay properties in 48Ca: high-precision Q-value measurement and improved nuclear matrix element calculations
A. A. Kwiatkowski, T. Brunner, J. D. Holt +16
We report a direct measurement of the Q-value of the neutrinoless double-beta-decay candidate 48Ca at the TITAN Penning-trap mass spectrometer, with the result that Q = 4267.98(32)…
An improved measurement of the 2νββ half-life of Xe-136 with EXO-200
J. B. Albert, M. Auger, D. J. Auty +94
We report on an improved measurement of the 2νββ half-life of Xe-136 performed by EXO-200. The use of a large and homogeneous time projection chamber allows for the precise estimat…
Penning-trap mass spectrometry of highly charged, neutron-rich Rb and Sr isotopes in the vicinity of
V. V. Simon, T. Brunner, U. Chowdhury +12
The neutron-rich mass region around presents challenges for modeling the astrophysical -process because of rapid shape transitions. We report on mass measurements…