Electron capture cross sections for stellar nucleosynthesis

Giannaka, P. G.; Kosmas, T. S.

doi:10.48550/arxiv.1502.07225

Cited by 2 publications

(4 citation statements)

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“…Within the context of the Donnelly-Walecka multipole decomposition method, the relevant nuclear matrix element for the dominant coherent channel (gs → gs transitions) is based on the Coulomb operator M0 [51]. The latter is a product of the zero-order spherical Bessel function times the zero-order spherical harmonic [48,[52][53][54] and can be cast in the form [49]…”

Section: A Standard Model Predictionmentioning

confidence: 99%

“…[50]. The above method has been successfully applied for similar calculations of various semileptonic nuclear processes [47,52,54].…”

Section: A Standard Model Predictionmentioning

confidence: 99%

“…To this end here we perform realistic nuclear structure calculations [46,47] in order to compute accurately the relevant cross sections [48][49][50]. The required proton and neutron nuclear form factors are reliably obtained within the context of the quasiparticle random phase approximation (QRPA) method by considering realistic strong nuclear forces [51][52][53][54]. Concentrating on ongoing and planned neutrino experiments, we have devoted special effort in estimating the expected number of CENNS events with high significance.…”

Section: Introductionmentioning

confidence: 99%

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Probing neutrino magnetic moments at the Spallation Neutron Source facility

et al. 2015

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Majorana neutrino electromagnetic properties are studied through neutral current coherent neutrino-nucleus scattering. We focus on the potential of the recently planned COHERENT experiment at the Spallation Neutron Source to probe muon-neutrino magnetic moments. The resulting sensitivities are determined on the basis of a χ 2 analysis employing realistic nuclear structure calculations in the context of the quasiparticle random phase approximation. We find that they can improve existing limits by half an order of magnitude. In addition, we show that these facilities allow for standard model precision tests in the low energy regime, with a competitive determination of the weak mixing angle. Finally, they also offer the capability to probe other electromagnetic neutrino properties, such as the neutrino charge radius. We illustrate our results for various choices of experimental setup and target material.

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Section: A Standard Model Predictionmentioning

confidence: 99%

“…[50]. The above method has been successfully applied for similar calculations of various semileptonic nuclear processes [47,52,54].…”

Section: A Standard Model Predictionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Probing neutrino magnetic moments at the Spallation Neutron Source facility

et al. 2015

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“…Historically, nucleons and nuclear systems have been extensively employed [59,60] as microlaboratories for exploring open neutrino properties through charged- [61] and neutral-current interaction processes [62]. The latter involve both the vector and the axial vector components of the weak interactions [63,64]. Thus, such probes are helpful for investigating the fundamental interactions of neutrinos with other elementary particles at low, intermediate and high energies [65].…”

Section: Introductionmentioning

confidence: 99%

Impact of Nonstandard Interactions on Neutrino-Nucleon Scattering

Papoulias

Kosmas

2016

Advances in High Energy Physics

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Non-standard neutrino-nucleon interaction is formulated and explored within the energy range of quasi-elastic scattering. In particular, the study focuses on the neutral-current elastic (anti)neutrino scattering off nucleons described by the exotic reactions να(να) + n → ν β (ν β ) + n and να(να) + p → ν β (ν β ) + p, which provide corrections to the dominant Standard Model processes. In this context, it is shown that the required exotic nucleon form factors may have a significant impact on the relevant cross sections. Besides cross sections, the event rate is expected to be rather sensitive to the magnitude of the lepton-flavour violating parameters resulting in an excess of events. The overlap of non-standard interactions and strange quark contributions, in the region of few GeV neutrino energies, is also examined. The formalism is applied for the case of the relevant neutrino-nucleon scattering experiments (LSND, MiniBooNE, etc.) and motivates the notion that such facilities have high potential to probe NSI. * dimpap@cc.uoi.gr † hkosmas@uoi.gr

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Electron capture cross sections for stellar nucleosynthesis

Cited by 2 publications

References 0 publications

Probing neutrino magnetic moments at the Spallation Neutron Source facility

Probing neutrino magnetic moments at the Spallation Neutron Source facility

Impact of Nonstandard Interactions on Neutrino-Nucleon Scattering

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