Publisher’s Note: Neutron Spectroscopic Factors in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mrow><mml:mi>Li</mml:mi></mml:mrow><mml:mprescripts /><mml:none /><mml:mn>9</mml:mn></mml:mmultiscripts></mml:math>from<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">H</mml:mi><mml:mprescripts /><mml:none /><mml:mn>2</mml:mn></mml:mmultiscripts><mml:mo stretchy="false">(</mml:mo><mml:mmu

Wuosmaa, A. H.; Rehm, K. E.; Greene, J. P.; Henderson, D.J.; Janssens, R. V. F.; Jiang, C. L.; Jisonna, L.; Moore, E. F.; Pardo, R. C.; Paul, M.; Peterson, D.; Pieper, Steven C.; Savard, G.; Schiffer, J. P.; Segel, R. E.; Sinha, S.; Tang, X. D.; Wiringa, R. B.

doi:10.1103/physrevlett.94.109904

Cited by 22 publications

(36 citation statements)

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“…The routines used to compute the integral relations were written as modified versions of existing spectroscopic-overlap routines [60][61][62][63]. The integral-relation routines were used previously to compute bound-state ANCs [33], and only very minor modification (replacing regular Whittaker functions with regular scattering functions) was necessary for width calculations.…”

Section: B Overlap and Integral-relation Calculationsmentioning

confidence: 99%

Ab initiocalculations of nuclear widths via an integral relation

Nollett

2012

Phys. Rev. C

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I describe the computation of energy widths of nuclear states using an integral over the interaction region of ab initio variational Monte Carlo wave functions, and I present calculated widths for many states. I begin by presenting relations that connect certain short-range integrals to widths. I then present predicted widths for 5 ≤ A ≤ 9 nuclei, and I compare them against measured widths. They match the data more closely and with less ambiguity than estimates based on spectroscopic factors. I consider the consequences of my results for identification of observed states in 8 B, 9 He, and 9 Li. I also examine failures of the method and conclude that they generally involve broad states and variational wave functions that are not strongly peaked in the interaction region. After examining bound-state overlap functions computed from a similar integral relation, I conclude that overlap calculations can diagnose cases in which computed widths should not be trusted.

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Section: B Overlap and Integral-relation Calculationsmentioning

confidence: 99%

Ab initiocalculations of nuclear widths via an integral relation

Nollett

2012

Phys. Rev. C

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“…Another topic not covered here is overlap functions and the related spectroscopic factors; these are used as input to calculations (such as distorted-wave Born approximation) of nuclear reactions; recent results are presented in Refs. [41,42]. A just-finished interesting study used VMC calculations to investigate the effects on nuclear binding energies of changes in the Hamiltonian induced by changes of the fundamental constants [43].…”

Section: -Conclusionmentioning

confidence: 99%

“…(41)] by using it to make the step from R to R ′ . The magnitudes of the 3A steps (x, y, and z for each nucleon) are determined by sampling a Gaussian of the width given in Eq.…”

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confidence: 99%

Quantum Monte Carlo Calculations of Light Nuclei

2005

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Summary. -During the last 15 years, there has been much progress in defining the nuclear Hamiltonian and applying quantum Monte Carlo methods to the calculation of light nuclei. I describe both aspects of this work and some recent results. -IntroductionThe goal of ab-initio light-nuclei calculations is to understand nuclei as collections of nucleons interacting with realistic (bare) potentials through reliable solutions of the many-nucleon Schrödinger equation. Such calculations can study binding energies, excitation spectra, relative stability, densities, transition amplitudes, cluster-cluster overlaps, low-energy astrophysical reactions, and other aspects of nuclei. Such calculations are also essential to claims of sub-nucleonic effects, such as medium modifications of the nuclear force or nucleon form factors; if a reliable pure nucleonic degrees of freedom calculation can reproduce experiment then there is no basis for claims of seeing sub-nucleonic degrees of freedom in that experiment (beyond the obvious fact that the free-space nucleon interactions are a result of sub-nucleonic degrees of freedom).There are two problems in microscopic few-and many-nucleon calculations: 1) determining the Hamiltonian, and 2) given H, accurately solving the Schrödinger equation c Società Italiana di Fisica

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“…[9]) and the transfer program at Argonne National Laboratory on light systems (e.g. [10,11]). It is of paramount importance that the reaction theory used in the analysis of these reactions provide an accurate description of the process and that theoretical uncertainties be well understood.…”

Section: Introductionmentioning

confidence: 99%

Improved description ofAr34,36,46(p,d) transfer reactio

2011

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An improved description of single neutron stripping from 34,36,46 Ar beams at 33 MeV/nucleon by a hydrogen target is presented and the dependence on the neutron-proton asymmetry of the spectroscopic factors is further investigated. A finite range adiabatic model is used in the analysis and compared to previous zero range and local energy approximations. Full three-body Faddeev calculations are performed to estimate the error in the reaction theory. In addition, errors from the optical potentials are also evaluated. From our new spectroscopic factors extracted from transfer, it is possible to corroborate the neutron-proton asymmetry dependence reported from knockout measurements.

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Publisher’s Note: Neutron Spectroscopic Factors inLi9fromH2(

Cited by 22 publications

References 0 publications

Ab initiocalculations of nuclear widths via an integral relation

Ab initiocalculations of nuclear widths via an integral relation

Quantum Monte Carlo Calculations of Light Nuclei

Improved description ofAr34,36,46(p,d) transfer reactio

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