New neutrino-nucleus reaction cross sections at solar, reactor and supernova neutrino energies

Suzuki, Tsuneo; Honma, Michio; Balantekin, A. B.; Kajino, Toshitaka; Chiba, Satoshi

doi:10.1051/epjconf/20146607025

Cited by 2 publications

(4 citation statements)

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“…Compared to our calculation, the hybrid calculation of Ref. [62], which we consider to be the most reliable, is 10% smaller. However, its B i values for known important low-lying transitions fall well below the data of Ref.…”

Section: A2 Assessment Of Uncertaintiescontrasting

confidence: 59%

“…The cross section can also be evaluated using B i values calculated with nuclear theory [52,58,59,61,62]. For the low energies of solar neutrinos, the preferred technique is the nuclear shell model, treating most of the nucleons as belonging to a closed core, and treating the remaining valence nucleons as subject to an effective potential from the core as well as to a residual nucleon-nucleon interaction.…”

Section: A2 Assessment Of Uncertaintiesmentioning

confidence: 99%

“…For the charged-current (CC) channel ν e + 40 Ar [51][52][53][54][55][56][57][58][59][60][61][62][63][64][65], the nominal threshold is Q gs = 1.5 MeV [66], corresponding to the ground state of 40 K, but this transition is forbidden. Instead, the cross section is dominated by transitions to nuclear excited states in 40 K * (a superallowed Fermi transition with ∆E i = 4.4 MeV, plus several Gamow-Teller transitions), which promptly produce gamma rays by nuclear de-excitation.…”

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confidence: 99%

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DUNE as the Next-Generation Solar Neutrino Experiment

et al. 2019

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We show that the Deep Underground Neutrino Experiment (DUNE) has the potential to deliver world-leading results in solar neutrinos. Significant but realistic new efforts would be required. With an exposure of 100 kton-year, DUNE could detect 10 5 signal events above 5 MeV. Separate precision measurements of neutrino-mixing parameters and the 8 B flux could be made using two detection channels (νe + 40 Ar and νe,µ,τ + e − ) and the day-night effect (> 10σ). New particle physics may be revealed through the comparison of solar neutrinos (with matter effects) and reactor neutrinos (without), which is discrepant by ∼ 2σ (and could become 5.6σ). New astrophysics may be revealed through the most precise measurement of the 8 B flux (to 2.5%) and the first detection of the hep flux (to 11%). DUNE is required: No other experiment, even proposed, has been shown capable of fully realizing these discovery opportunities.12 θ 2 sin 0.2 0.3 0.4

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Section: A2 Assessment Of Uncertaintiescontrasting

confidence: 59%

Section: A2 Assessment Of Uncertaintiesmentioning

confidence: 99%

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confidence: 99%

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DUNE as the Next-Generation Solar Neutrino Experiment

et al. 2019

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“…Calculations with this Hamiltonian reproduces the measured neutrino-12 C cross sections with a reduced quenching of g A , as compared to the previous calculations [24]. Motivated by this success, SFO Hamiltonian is used to calculate neutrino-13 C cross sections [25,26], which are helpful to know in analyzing data from carbon-based scintillators.…”

Section: Nucleosynthesis Astronomical Observa4onsmentioning

confidence: 63%

Neutrinos, Rare Isotopes of Exotic Nuclei and Nuclear Astrophysics

Balantekin

2015

J. Phys.: Conf. Ser.

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The connection between neutrino physics, nucleosynthesis of elements in astrophysical sites, laboratory measurements with rare exotic nuclei and astronomical observations is discussed. The key role played by neutrinos is emphasized and the close connection between neutrino physics and nucleosynthesis is highlighted.Understanding where and how various nuclei are synthesized during the evolution of the Universe is one of the key questions of modern science. Element synthesis is thought to be a multi-site and multi-epoch process as depicted in Figure 1. Tackling the question of the origin of elements requires a multitude of tools: High-quality observations of stellar spectra, laboratory atomic physics data, modeling stellar photospheres as well as theoretical and experimental investigations of the relevant nuclear processes. In addition, typically copious amounts of neutrinos are present in most nucleosynthesis sites. This feature makes neutrino physics and neutrino-nucleus interactions salient components of many nucleosynthesis scenarios. This very close link between astronomical observations, neutrino physics, and nucleosynthesis is depicted in Figure 2 and was described in detail in a recent special issue of Journal of Physics G where the reader is referred to for a more complete explanation of many details [1].In nuclear physics on the theoretical side there have been significant accomplishments during the last decade in calculations with microscopic ab initio methods, driven in part by advances in computational capabilities. The most salient of these results is the realization of the necessity of incorporating three-body forces, in addition to the conventional two-body forces, to describe a wide range of nuclear phenomena. On the experimental side several facilities, already operating or under construction, with intense beams of rare isotopes now have the ability to explore nuclear physics far from stability, at the r-process nucleosynthesis path [2].There is considerable debate about the astrophysical site of the r-process nucleosynthesis, the two most favorite sites being core-collapse supernovae and neutron-star mergers. Neutrinos not only play a crucial role in the dynamics of these sites, but they also control the value of the electron fraction, the parameter determining the yields in the r-process. (For a recent brief summary see Ref. [3]). Understanding a core-collapse supernova requires answers to a variety of questions some of which need to be answered by nuclear physics, both theoretically and experimentally: Analysis of the formation and subsequent cooling of the neutron star involves high-density equation of state for nuclear matter. Studies of the oscillations of neutrinos as they travel from the neutrinosphere to where r-process or neutrino heating of the shock may take place need knowledge of neutrino properties. One should keep in mind that there are still many puzzles in neutrino physics. For example the near symmetry between second and third generations arXiv:1410.5866v1 [nucl-th]

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New neutrino-nucleus reaction cross sections at solar, reactor and supernova neutrino energies

Cited by 2 publications

References 30 publications

DUNE as the Next-Generation Solar Neutrino Experiment

DUNE as the Next-Generation Solar Neutrino Experiment

Neutrinos, Rare Isotopes of Exotic Nuclei and Nuclear Astrophysics

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