RG
Robert Grzywacz
nucl-exnucl-thphysics.ins-dethep-exastro-ph.HEastro-ph.SRCell NucleusHearthep-phneutron beta decay
On Valency
published · living versionsW_fgdwnvcv·v1 · currentpublished
Beta decay of potassium-54 reveals the role of two-body currents in neutron-rich nuclei
with Zhengyu Xu, Matthias Heinz, Thomas Papenbrock, Weijia Ong +82
1 version
Preprints & journals
73 papers in the corpus · 1995–2026A Two-Component Exciton Model for -Delayed Neutron Emission2610.00761v1 · Nico Braukman, Toshihiko Kawano, Robert Grzywacz et al.2026 · 0 citationsarXiv
Future directions in nuclear decay at FRIB and beyond2607.22983v1 · Garrett B. King, Ayala Glick-Magid, Grigor Sargsyan et al.2026 · 0 citationsarXiv
-forbidden strengths near Sn from knockout reactions in Cd and Sn2607.02184v1 · T. J. Gray, K. L. Jones, R. Grzywacz et al.2026 · 0 citationsarXiv
Beta-Delayed Neutron Emission of N=84 ^132Cd.42360963 · Madurga, M, Xu, Z Y, Grzywacz, R et al.2026 · 0 citationsPhysical review letters. 2026;136(23):232504
Direct observation of the superallowed α-decay of 104Te.42203870 · Cox, Ian, Grzywacz, Robert, King, T T et al.2026 · 0 citationsNature. 2026;654(8117):52-56
Beta-Decay Half-Lives beyond ^54Ca: A Systematic Survey of Decay Properties Approaching the Neutron Dripline.41861329 · Ong, W-J, Xu, Z Y, Grzywacz, R et al.2026 · 5 citationsPhysical review letters. 2026;136(9):092502
Beta-decay Half Lives beyond Ca: A Systematic Survey of Decay Properties approaching the Neutron Dripline2510.19757v1 · W.-J. Ong, Z. Y. Xu, R. Grzywacz et al.2025 · 0 citationsarXiv
First β-Delayed Two-Neutron Spectroscopy of the r-Process Nucleus ^134In and Observation of the i_13/2 Single-Particle Neutron State in ^133Sn.41138100 · Dyszel, P, Grzywacz, R, Xu, Z Y et al.2025 · 0 citationsPhysical review letters. 2025;135(15):152501
Decay study of the most neutron-deficient Zn isotopes with the Warsaw Optical TPC detector2509.25061v1 · A. Kubiela, D.-S. Ahn, H. Baba et al.2025 · 0 citationsarXiv
Modeling of Light Production in Inorganic Scintillators2508.15513v1 · B. Kreider, I. Cox, R. Grzywacz et al.2025 · 0 citationsarXiv
Universal Effective Charges in the sd and fp Shells.40929225 · Ogunbeku, T H, Allmond, J M, Gray, T J et al.2025 · 7 citationsPhysical review letters. 2025;135(7):072501
The 76Cu conundrum remains unsolved2505.06400v1 · B. Olaizola, A. Illana, J. Benito et al.2025 · 2 citationsPhysics Letters B, 9 May 2025, 139551
Impact of Newly Measured β-Delayed Neutron Emitters around ^78Ni on Light Element Nucleosynthesis in the Neutrino Wind Following a Neutron Star Merger.40408715 · Tolosa-Delgado, A, Tain, J L, Reichert, M et al.2025 · 6 citationsPhysical review letters. 2025;134(17):172701
Object Detection with Deep Learning for Rare Event Search in the GADGET II TPC2501.17892v1 · Tyler Wheeler, S. Ravishankar, C. Wrede et al.2025 · 2 citationsarXiv
The evidence of shell closure and -delayed neutron emission from F2412.12071v1 · J. F. Peltier, Z. Y. Xu, I. Cox et al.2024 · 6 citationsarXiv
YSO implantation detector for beta-delayed neutron spectroscopy2412.04507v1 · M. Singh, R. Yokoyama, R. Grzywacz et al.2024 · 4 citationsarXiv
Motivations for Early High-Profile FRIB Experiments2410.06144v2 · B. Alex Brown, Alexandra Gade, S. Ragnar Stroberg et al.2024 · 22 citationsarXiv
First Exploration of Monopole-Driven Shell Evolution above the N=126 Shell Closure: New Millisecond Isomers in ^213Tl and ^215Tl.39213556 · Yeung, T T, Morales, A I, Wu, J et al.2024 · 10 citationsPhysical review letters. 2024;133(7):072501
Compound-Nucleus and Doorway-State Decays of β-Delayed Neutron Emitters ^51,52,53K.39121400 · Xu, Z Y, Grzywacz, R, Gottardo, A et al.2024 · 4 citationsPhysical review letters. 2024;133(4):042501
Proton Shell Gaps in N=28 Nuclei from the First Complete Spectroscopy Study with FRIB Decay Station Initiator.38682970 · Cox, I, Xu, Z Y, Grzywacz, R et al.2024 · 13 citationsPhysical review letters. 2024;132(15):152503
First Exploration of Monopole-Driven Shell Evolution above the N = 126 shell closure: new Millisecond Isomers in 213Tl and 215Tl2401.06428v2 · T.T. Yeung, A.I. Morales, J. Wu et al.2024 · 0 citationsarXiv
Precision measurement of Zn electron-capture decays with the KDK coincidence setup2308.03965v1 · L. Hariasz, P.C.F. Di Stefano, M. Stukel et al.2023 · 1 citationNuclear Data Sheets 189-224 (2023)
Rare ^40K Decay with Implications for Fundamental Physics and Geochronology.37595241 · Stukel, M, Hariasz, L, Di Stefano, P C F et al.2023 · 14 citationsPhysical review letters. 2023;131(5):052503
^133In: A Rosetta Stone for Decays of r-Process Nuclei.37505957 · Xu, Z Y, Madurga, M, Grzywacz, R et al.2023 · 10 citationsPhysical review letters. 2023;131(2):022501
Microsecond Isomer at the N=20 Island of Shape Inversion Observed at FRIB.37390416 · Gray, T J, Allmond, J M, Xu, Z et al.2023 · 26 citationsPhysical review letters. 2023;130(24):242501
Executive Summary of the Topical Program: Nuclear Isomers in the Era of FRIB2304.10608v1 · G. W. Misch, M. R. Mumpower, F. G. Kondev et al.2023 · 1 citationarXiv
Beta-delayed neutron spectroscopy of In2303.12173v1 · Z. Y. Xu, M. Madurga, R. Grzywacz et al.2023 · 13 citationsarXiv
New isomeric transition in Mg: Bridging the N=20 and N=28 islands of inversion2301.12002v3 · M. Madurga, J.M. Christie, Z. Xu et al.2023 · 3 citationsPhys. Rev. C 109, L061301 (2024)
Evidence for ground-state electron capture of K2211.10343v3 · L. Hariasz, M. Stukel, P.C.F. Di Stefano et al.2022 · 8 citationsPhysical Review C, 108-014327 (2023)
Crossing N=28 Toward the Neutron Drip Line: First Measurement of Half-Lives at FRIB.36461950 · Crawford, H L, Tripathi, V, Allmond, J M et al.2022 · 34 citationsPhysical review letters. 2022;129(21):212501
β-Delayed One and Two Neutron Emission Probabilities Southeast of ^132Sn and the Odd-Even Systematics in r-Process Nuclide Abundances.36332266 · Phong, V H, Nishimura, S, Lorusso, G et al.2022 · 23 citationsPhysical review letters. 2022;129(17):172701
Remeasuring the anomalously enhanced in 2109.06081v2 · S. L. Henderson, T. Ahn, P. J. Fasano et al.2021 · 0 citationsarXiv
Neutron detection efficiency of the Neutron dEtector with Xn Tracking (NEXT)2107.11276v1 · S. Neupane, J. Heideman, R. Grzywacz et al.2021 · 5 citationsarXiv
Development of a Reference Database for Beta-Delayed Neutron Emission2102.01165v1 · P. Dimitriou, I. Dillmann, B. Singh et al.2021 · 58 citationsarXiv
A novel experimental system for the KDK measurement of the K decay scheme relevant for rare event searches2012.15232v2 · M. Stukel, B. C. Rasco, N. T. Brewer et al.2020 · 4 citationsarXiv
Detailed spectroscopy of doubly magic Sn2007.03029v1 · J. Benito, L.M. Fraile, A.Korgul et al.2020 · 18 citationsPhys. Rev. C 102, 014328 (2020)
Publisher's Note: Direct Lifetime Measurements of the Excited States in ^72Ni [Phys. Rev. Lett. 116, 122502 (2016)].32501080 · Kolos, K, Miller, D, Grzywacz, R et al.2020 · 0 citationsPhysical review letters. 2020;124(20):209901
Conceptual design and first results for a neutron detector with interaction localization capabilities1904.01662v3 · J. Heideman, D. Perez-Loureiro, R. Grzywacz et al.2019 · 10 citationsarXiv
Segmented YSO scintillation detectors as a new -implant detection tool for decay spectroscopy in fragmentation facilities1903.03670v2 · R. Yokoyama, M. Singh, R. Grzywacz et al.2019 · 22 citationsarXiv
The Nab Experiment: A Precision Measurement of Unpolarized Neutron Beta Decay1811.10047v3 · J. Fry, R. Alarcon, S. Baessler et al.2018 · 28 citationsarXiv
FRIB and the GW170817 Kilonova1809.00703v1 · A. Aprahamian, R. Surman, A. Frebel et al.2018 · 4 citationsarXiv
Commissioning of the BRIKEN detector for the measurement of very exotic beta-delayed neutron emitters1808.00732v1 · A. Tolosa-Delgado, J. Agramunt, J. L. Tain et al.2018 · 36 citationsarXiv
The ORNL Analysis Technique for Extracting -Delayed Multi-Neutron Branching Ratios with BRIKEN1806.05238v1 · B.C. Rasco, N.T. Brewer, R. Yokoyama et al.2018 · 11 citationsarXiv
Development of the (d,n) proton-transfer reaction in inverse kinematics for structure studies1712.06944v1 · K.L. Jones, C. Thornsberry, J. Allen et al.2017 · 0 citationsarXiv
The KDK (potassium decay) experiment1711.04004v1 · P.C.F. Di Stefano, N. Brewer, A. Fija\lkowska et al.2017 · 5 citationsarXiv
Impact of Modular Total Absorption Spectrometer measurements of β decay of fission products on the decay heat and reactor ν[over ¯]_e flux calculation.28949741 · Fijałkowska, A, Karny, M, Rykaczewski, K P et al.2018 · 42 citationsPhysical review letters. 2017;119(5):052503
Evidence for Gamow-Teller Decay of ^78Ni Core from Beta-Delayed Neutron Emission Studies.27610848 · Madurga, M, Paulauskas, S V, Grzywacz, R et al.2018 · 37 citationsPhysical review letters. 2016;117(9):092502
Decays of the Three Top Contributors to the Reactor ν[over ¯]_e High-Energy Spectrum, ^92Rb, ^96gsY, and ^142Cs, Studied with Total Absorption Spectroscopy.27610847 · Rasco, B C, Wolińska-Cichocka, M, Fijałkowska, A et al.2018 · 62 citationsPhysical review letters. 2016;117(9):092501
Direct Lifetime Measurements of the Excited States in (72)Ni.27058074 · Kolos, K, Miller, D, Grzywacz, R et al.2016 · 19 citationsPhysical review letters. 2016;116(12):122502
Recent direct reaction experimental studies with radioactive tin beams1508.06531v1 · K.L. Jones, S. Ahn, J.M. Allmond et al.2015 · 3 citationsActa Physica Polonica B, 46(3), 537-546 (2015)
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