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@ARTICLE{Elhatisari:828261,
author = {Elhatisari, Serdar and Epelbaum, Evgeny and Krebs, Hermann
and Lähde, Timo and Lee, Dean and Li, Ning and Lu, Bingnan
and Meissner, Ulf-G. and Rupak, Gautam},
title = {{A}b initio calculations of the isotopic dependence of
nuclear clustering},
reportid = {FZJ-2017-02229},
year = {2017},
note = {5 + 9 pages (main + supplemental materials), 4 + 6 figures
(main + supplemental materials)},
abstract = {Nuclear clustering describes the appearance of structures
resembling smaller nuclei such as alpha particles (4He
nuclei) within the interior of a larger nucleus. While
clustering is important for several well-known examples,
little is known about the general nature of clustering in
nuclei. In this letter we present lattice Monte Carlo
calculations based on chiral effective field theory for the
ground states of helium, beryllium, carbon, and oxygen
isotopes. By computing model-independent measures that probe
three- and four-nucleon correlations at short distances, we
determine the effective number of alpha clusters in any
nucleus as well as their shape compared to alpha particles
in vacuum. We also introduce a new computational approach
called the pinhole algorithm, which solves a long-standing
deficiency of auxiliary-field Monte Carlo simulations in
computing density correlations relative to the center of
mass. We use the pinhole algorithm to determine the proton
and neutron density distributions and the geometry of
cluster correlations in 12C, 14C, and 16C. The structural
similarities among the carbon isotopes suggest that 14C and
16C have excitations analogous to the well-known Hoyle state
resonance in 12C.},
cin = {IAS-4},
cid = {I:(DE-Juel1)IAS-4-20090406},
pnm = {611 - Fundamental Particles and Forces (POF3-611) / DFG
project 196253076 - TRR 110: Symmetrien und Strukturbildung
in der Quantenchromodynamik (196253076)},
pid = {G:(DE-HGF)POF3-611 / G:(GEPRIS)196253076},
typ = {PUB:(DE-HGF)25},
eprint = {1702.5177},
howpublished = {arXiv:1702.5177},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:1702.5177;\%\%$},
url = {https://juser.fz-juelich.de/record/828261},
}