Nuclear Structure 2026

Session

Tuesday Afternoon Late Session Block

T4

Jul 28, 2026, 4:00 p.m.

Fletcher Challenge Canada (Simon Fraser University Harbour Centre)

47. The Gamma Ray Energy Tracking Array - GRETA

Heather Crawford (Lawrence Berkeley National Laboratory)

2026-07-28, 4:00 p.m.

Invited speakers

The Gamma-Ray Energy Tracking Array (GRETA) Project started in 2017, following nearly a decade of successful science with the predecessor GRETINA array. Led by LBNL, with a team including partner institutions ANL, ORNL and FRIB, GRETA marked the completion of construction and initial commissioning of all technical systems (mechanical, electronics and computing) with a subset of Quad Detector...

5. Recent results on the double-gamma decay

Michael Weinert

2026-07-28, 4:30 p.m.

Contributed Talks

The nuclear two-photon or double-gamma (2γ) decay is a second-order electromagnetic decay process whereby a nucleus in an excited state emits two gamma rays simultaneously. Compared to first-order decay pathways, such as single photon emission or internal electron conversion, the two-photon decay rate is very small. Ideal cases for this search are $0^+ \rightarrow 0^+$ transition where single...

117. Neutron spectroscopy at the FRIB Decay Station Initiator

Robert Grzywacz (University of Tennessee)

2026-07-28, 4:50 p.m.

Contributed Talks

The FRIB Decay Station Initiator [All25] was designed for comprehensive decay studies, including the ability to perform beta-delayed neutron emission studies. The bn-precursors investigated so far with FDSi range from doubly magic 24O to deformed 111Nb. The analysis of three cases was recently completed at the University of Tennessee. The measurement of 24O reveals the role of continuum...

34. Study of shape coexistence and triaxial deformation in 56Cr using AGATA spectrometer: The puzzling B(E2) values

Julgen Pellumaj (INFN-Padova, University of Padova)

2026-07-28, 5:10 p.m.

Contributed Talks

The Cr isotopes with N≥28 are a good testing ground for rapid shape evolution from a spherical to a well deformed region close to N=40 [1]. Among the Cr isotopic chain, the $^{56}$Cr (N=32) shows a very particular interest. The appearance of a subshell closure in this nucleus is indicated by high excitation energy of the 2$^+_1$ state and reduced B(E2:2$^+_1\rightarrow$0$^+_1$) values [2]...