| | |
| | |
Stat |
Members: 3643 Articles: 2'488'730 Articles rated: 2609
29 March 2024 |
|
| | | |
|
Article overview
| |
|
Testing ab initio nuclear structure in neutron-rich nuclei: lifetime measurements of second 2+ states in 16C and 20O | M. Ciemala
; S. Ziliani
; F.C.L. Crespi
; S. Leoni
; B. Fornal
; A. Maj
; P. Bednarczyk
; G. Benzoni
; A. Bracco
; C. Boiano
; S. Bottoni
; S. Brambilla
; M. Bast
; M. Beckers
; T. Braunroth
; F. Camera
; N. Cieplicka-Orynczak
; E. Clement
; S. Coelli
; O. Dorvaux
; S. Erturk
; G. de France
; C. Fransen
; A. Goldkuhle
; J. Grebosz
; M.N. Harakeh
; L.W. Iskra
; B. Jacquot
; A. Karpov
; M. Kicinska-Habior
; Y. Kim
; M. Kmiecik
; A. Lemasson
; S.M. Lenzi
; M. Lewitowicz
; H. Li
; I. Matea
; K. Mazurek
; C. Michelagnoli
; M. Matejska-Minda
; B. Million
; C. Muller-Gatermann
; V. Nanal
; P. Napiorkowski
; D.R. Napoli
; R. Palit
; M. Rejmund
; Ch. Schmitt
; M. Stanoiu
; I. Stefan
; E. Vardaci
; B. Wasilewska
; O. Wieland
; M. Zieblinski
; M. Zielinska
; A. Atac
; D. Barrientos
; B. Birkenbach
; A.J. Boston
; B. Cederwall
; L. Charles
; J. Collado
; D.M. Cullen
; P. Desesquelles
; C. Domingo-Pardo
; J. Dudouet
; J. Eberth
; V. Gonzalez
; J. Goupil
; L.J. Harkness-Brennan
; H. Hess
; D.S. Judson
; A. Jungclaus
; W. Korten
; M. Labiche
; A. Lefevre
; R. Menegazzo
; D. Mengoni
; J. Nyberg
; R.M. Perez-Vidal
; Zs. Podolyak
; A. Pullia
; F. Recchia
; P. Reiter
; F. Saillant
; M.D. Salsac
; E. Sanchis
; O. Stezowski
; Ch. Theisen
; J.J. Valiente-Dobon
; J.D. Holt
; J. Menendez
; A. Schwenk
; J. Simonis
; | Date: |
12 Feb 2020 | Abstract: | To test the predictive power of ab initio nuclear structure theory, the
lifetime of the second 2+ state in neutron-rich 20O, tau(2+_2 ) = 150(+80-30)
fs, and an estimate for the lifetime of the second 2+ state in 16C have been
obtained, for the first time. The results were achieved via a novel Monte Carlo
technique that allowed us to measure nuclear state lifetimes in the
tens-to-hundreds femtoseconds range, by analyzing the Doppler-shifted
gamma-transition line shapes of products of low-energy transfer and
deep-inelastic processes in the reaction 18O (7.0 MeV/u) + 181Ta. The requested
sensitivity could only be reached owing to the excellent performances of the
AGATA gamma-tracking array, coupled to the PARIS scintillator array and to the
VAMOS++ magnetic spectrometer. The experimental lifetimes agree with
predictions of ab initio calculations using two- and three-nucleon
interactions, obtained with the valence-space in-medium similarity
renormalization group for 20O, and with the no-core shell model for 16C. The
present measurement shows the power of electromagnetic observables, determined
with high-precision gamma spectroscopy, to assess the quality of
first-principles nuclear structure calculations, complementing common
benchmarks based on nuclear energies. The proposed experimental approach will
be essential for short lifetimes measurements in unexplored regions of the
nuclear chart, including r-process nuclei, when intense ISOL-type beams become
available. | Source: | arXiv, 2002.4814 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser claudebot
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |