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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},
}