2011
DOI: 10.1103/physrevlett.106.222501
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Model-Independent Calculation of Radiative Neutron Capture on Lithium-7

Abstract: The radiative neutron capture on lithium-7 is calculated model independently using a low-energy halo effective field theory. The cross section is expressed in terms of scattering parameters directly related to the S-matrix elements. It depends on the poorly known p-wave effective range parameter r(1). This constitutes the largest uncertainty in traditional model calculations. It is explicitly demonstrated by comparing with potential model calculations. A single parameter fit describes the low-energy data extre… Show more

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Cited by 68 publications
(158 citation statements)
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References 26 publications
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“…The data are compared with previous direct neutron capture measurements by Imhof et al [11] (open blue circles), Nagai et al [13] (solid green triangle), Heil et al [15] (solid red square), and another more recent measurement by Nagai et al [42]), and Rupak and Higa (blue short-dashed line, [43]). The best fit to the data is shown by the black solid curve.…”
Section: Neutron Capture Cross Sectionmentioning
confidence: 99%
“…The data are compared with previous direct neutron capture measurements by Imhof et al [11] (open blue circles), Nagai et al [13] (solid green triangle), Heil et al [15] (solid red square), and another more recent measurement by Nagai et al [42]), and Rupak and Higa (blue short-dashed line, [43]). The best fit to the data is shown by the black solid curve.…”
Section: Neutron Capture Cross Sectionmentioning
confidence: 99%
“…Refs. [325][326][327]. The advantage of this approach is the predictive power of EFT which allows for increasing the precision of calculations as more terms in the effective theory expansion is included (the dots).…”
Section: Single-particle Ab-initio Methodsmentioning
confidence: 99%
“…EFT in fact gives a precise prescription of how to improve calculations [52][53][54][55][56][57][58][59][60]. Applications of EFT to solar nuclear reactions and to other stellar evolution in general have been reported in numerous works (see, e.g., [61][62][63][64]. For example, calculations of radiative capture reactions using EFT and lattice gauge theory have been reported (see e.g., Refs.…”
Section: B Gluons Quarks and Nucleonsmentioning
confidence: 99%
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“…Halo EFT has recently been applied to describe the structure and reactions of many known and predicted one-and two-neutron halo systems. For oneneutron halos it essentially reproduces the effective range expansion, but their electromagnetic structure and reactions can be predicted [15][16][17][18][19][20]. Moreover, the natural accuracy limits of cluster models can be estimated from the order at which local gauge invariant couplings to the currents appear.…”
Section: Halo Eftmentioning
confidence: 99%