Chiral perturbation theory for electroweak reactions on deuterium

Phillips, Daniel R.

doi:10.1088/0954-3899/31/8/004

Cited by 10 publications

(9 citation statements)

References 48 publications

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“…Conventional calculations based on realistic NN interactions and consistent e.m. two-body MEC provide a satisfactory description of the available experimental data [23,76,135,136]. Currently, there are also quite a few calculations of deuteron e.m. properties that are based on χEFT formulations [48,[113][114][115][137][138][139][140]. Within the χEFT framework, a general good agreement between the calculated and experimental deuteron form factors is observed, provided that the e.m. structure of the nucleons is accounted for via suited nucleonic form factors.…”

Section: Ground-state Properties: Elastic Form Factorsmentioning

confidence: 77%

Electromagnetic reactions on light nuclei

Bacca

Pastore

2014

J. Phys. G: Nucl. Part. Phys.

126

171

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Abstract. Electromagnetic reactions on light nuclei are fundamental to advance our understanding of nuclear structure and dynamics.The perturbative nature of the electromagnetic probes allows to clearly connect measured cross sections with the calculated structure properties of nuclear targets. We present an overview on recent theoretical abinitio calculations of electron-scattering and photonuclear reactions involving light nuclei. We encompass both the conventional approach and the novel theoretical framework provided by chiral effective field theories. Because both strong and electromagnetic interactions are involved in the processes under study, comparison with available experimental data provides stringent constraints on both many-body nuclear Hamiltonians and electromagnetic currents. We discuss what we have learned from studies on electromagnetic observables of light nuclei, starting from the deuteron and reaching up to nuclear systems with mass number A = 16.

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Section: Ground-state Properties: Elastic Form Factorsmentioning

confidence: 77%

Electromagnetic reactions on light nuclei

Bacca

Pastore

2014

J. Phys. G: Nucl. Part. Phys.

126

171

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“…To this order the three-vector current contains two unknown isoscalar low energy constants (LEC's), but the charge operator from which the quadrupole moment is calculated contains no LEC and is uniquely determined. (At higher order the charge operator contains an LEC that can be used to fix the quadrupole moment [6].) However, all of their results still depend on the cutoff Λ, which is needed to renormalize the calculations, and the dependence of their result TABLE I.…”

Section: Introductionmentioning

confidence: 99%

Covariant spectator theory ofnpscattering: Deuteron quadrupole moment

Gross

2015

Phys. Rev. C

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The deuteron quadrupole moment is calculated using two CST model wave functions obtained from the 2007 high precision fits to np scattering data. Included in the calculation are a new class of isoscalar np interaction currents automatically generated by the nuclear force model used in these fits. The prediction for model WJC-1, with larger relativistic P-state components, is 2.5% smaller that the experimental result, in common with the inability of models prior to 2014 to predict this important quantity. However, model WJC-2, with very small P-state components, gives agreement to better than 1%, similar to the results obtained recently from χEFT predictions to order N 3 LO.

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“…Since the pioneering work of Weinberg [3][4][5], this calculational scheme has been widely utilized in nuclear physics [6, and nuclear χEFT has developed into an intense field of research. In this contribution, we focus on the development of electroweak currents from χEFT [6,[42][43][44][45][46][47][48][49][50][51][52][53][54][55][56][57][58] and present applications to selected observables in light and medium mass nuclei [62][63][64][65][66][67][68][69].…”

mentioning

confidence: 99%

“…[48] and Phillips in Refs. [45][46][47]. More recently, derivations based on two different implementations of time-ordered perturbation theory appeared in the literature.…”

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confidence: 99%

Electroweak Currents from Chiral Effective Field Theory

Baroni,

King,

Pastore

2021

Preprint

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Since the pioneering work of Weinberg, Chiral Effective Field Theory (χEFT) has been widely and successfully utilized in nuclear physics to study many-nucleon interactions and associated electroweak currents. Nuclear χEFT has now developed into an intense field of research and is applied to study light to medium mass nuclei. In this contribution, we focus on the development of electroweak currents from χEFT and present applications to selected nuclear electroweak observables. Keywords Chiral Effective Field Theory • Nuclear Structure • Nuclear ReactionsA major objective of nuclear theory is to explain the structure and dynamics of nuclei and their interaction with electroweak probes in a fully microscopic approach. In such an approach, nucleons interact with each other via many-body (primarily, two-and three-nucleon) interactions, and with external electroweak probes, such as electrons, neutrinos, and photons, via many-body currents describing the couplings of these probes to individual nucleons and many-body clusters of correlated nucleons. Over the past sixty years, several

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Chiral perturbation theory for electroweak reactions on deuterium

Cited by 10 publications

References 48 publications

Electromagnetic reactions on light nuclei

Electromagnetic reactions on light nuclei

Covariant spectator theory ofnpscattering: Deuteron quadrupole moment

Electroweak Currents from Chiral Effective Field Theory

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