Quenching of Spectroscopic Factors for Proton Removal in Oxygen Isotopes

Jensen, O; Hjorth-Jensen, M; Hagen, Gaute; Brown, B; Gade, A

doi:10.1103/PhysRevLett.107.032501

Quenching of Spectroscopic Factors for Proton Removal in Oxygen Isotopes

Journal Article · Sat Jan 01 04:00:00 EST 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.107.032501· OSTI ID:1037064

Jensen, O ^[1]; Hjorth-Jensen, M ^[1]; Hagen, Gaute ^[2]; Brown, B ^[3]; Gade, A ^[3]

University of Oslo, Norway
ORNL
Michigan State University, East Lansing

We present microscopic coupled-cluster calculations of the spectroscopic factors for proton removal from the closed-shell oxygen isotopes {sup 14,16,22,24,28}O with a chiral nucleon-nucleon interaction at next-to-next-to-next-to-leading order. We include coupling-to-continuum degrees of freedom by using a Hartree-Fock basis built from a Woods-Saxon single-particle basis. This basis treats bound and continuum states on an equal footing. We find a significant quenching of spectroscopic factors in the neutron-rich oxygen isotopes, pointing to enhanced many-body correlations induced by strong coupling to the scattering continuum above the neutron emission thresholds.

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Oak Ridge National Laboratory (ORNL)

Sponsoring Organization:: DOE Office of Science; USDOE

DOE Contract Number:: AC05-00OR22725

OSTI ID:: 1037064

Journal Information:: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 3 Vol. 107; ISSN 0031-9007; ISSN PRLTAO

Country of Publication:: United States

Language:: English

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Quenching of Spectroscopic Factors for Proton Removal in Oxygen Isotopes

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