Analog of the giant dipole resonance in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">He</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>

Nakayama, S.; Matsumoto, E.; Hayami, R.; Fushimi, K.; Kawasuso, H.; Yasuda, Keisuke; Yamagata, T.; Akimune, H.; Ikemizu, H.; Fujiwara, M̄.; Yosoi, M.; Nakanishi, K.; Kawase, K.; Hashimoto, H.; Oota, Takeshi; Sagara, K.; Kudoh, T.; Asaji, S.; Ishida, Takashi; Tanaka, M.; Greenfield, M. B.

doi:10.1103/physrevc.76.021305

Cited by 23 publications

(23 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 14 compares the theoretical and experimental photoabsorption cross sections σ γ (E γ ). The calculation predicts a sharp rise of the cross section from the threshold, which is observed by several measurements [134,136] but not in the data of Ref. [133].…”

Section: Photoabsorption Ofmentioning

confidence: 62%

“…He First, we discuss photoabsorption reactions of 4 He to see the reliability of the method. There has been a controversy in the lowlying photoabsorption cross section, that is, the experimental data are in serious disagreement [133,134]. In the energy region around 26 MeV, the photoabsorption reaction takes place mainly through the electric-dipole (E1) transition.…”

Section: Photoabsorption Ofmentioning

confidence: 99%

See 1 more Smart Citation

Towards a unified model of neutrino-nucleus reactions for neutrino oscillation experiments

et al. 2017

View full text Add to dashboard Cite

A precise description of neutrino-nucleus reactions will play a key role in addressing fundamental questions such as the leptonic CP violation and the neutrino mass hierarchy through analyzing data from next-generation neutrino oscillation experiments. The neutrino energy relevant to the neutrino-nucleus reactions spans a broad range and, accordingly, the dominant reaction mechanism varies across the energy region from quasi-elastic scattering through nucleon resonance excitations to deep inelastic scattering. This corresponds to transitions of the effective degree of freedom for theoretical description from nucleons through meson-baryon to quarks. The main purpose of this review is to report our recent efforts towards a unified description of the neutrino-nucleus reactions over the wide energy range; recent overall progress in the field is also sketched. Starting with an overview of the current status of neutrino-nucleus scattering experiments, we formulate the cross section to be commonly used for the reactions over all the energy regions. A description of the neutrino-nucleon reactions follows and, in particular, a dynamical coupled-channels model for meson productions in and beyond the [Formula: see text](1232) region is discussed in detail. We then discuss the neutrino-nucleus reactions, putting emphasis on our theoretical approaches. We start the discussion with electroweak processes in few-nucleon systems studied with the correlated Gaussian method. Then we describe quasi-elastic scattering with nuclear spectral functions, and meson productions with a [Formula: see text]-hole model. Nuclear modifications of the parton distribution functions determined through a global analysis are also discussed. Finally, we discuss issues to be addressed for future developments.

show abstract

Section: Photoabsorption Ofmentioning

confidence: 62%

Section: Photoabsorption Ofmentioning

confidence: 99%

Towards a unified model of neutrino-nucleus reactions for neutrino oscillation experiments

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Much effort has been devoted to measure the SD transitions in light nuclei. Recently the charge-exchange reaction of ( 7 Li, 7 Beγ) is undertaken to measure the electric dipole (E1) and the SD resonances of 4 He and 6,7 Li [8,9]. A more recent measurement of polarization transfer observables with 16 O( p, n) 16 F reaction [10] indicates that valuable information on the SD excitations is attainable.…”

Section: Introductionmentioning

confidence: 99%

Spin-dipole strength functions of4He with realistic nuclear forces

Horiuchi

Suzuki

2013

Phys. Rev. C

View full text Add to dashboard Cite

Both isoscalar and isovector spin-dipole excitations of 4 He are studied using realistic nuclear forces in the complex scaling method. The ground state of 4 He and discretized continuum states with J π = 0 − , 1 − , 2 − for A = 4 nuclei are described in explicitly correlated Gaussians reinforced with global vectors for angular motion. Two-and three-body decay channels are specifically treated to take into account final state interactions. The observed resonance energies and widths of the negative-parity levels are all in fair agreement with those calculated from both the spin-dipole and electric-dipole strength functions as well as the energy eigenvalues of the complex scaled Hamiltonian. Spin-dipole sum rules, both non energy-weighted and energy-weighted, are discussed in relation to tensor correlations in the ground state of 4 He.

show abstract

“…[50] obtained via the study of the 4 He( 7 Li, 7 Be) reaction. A completely different trend is instead shown by the Shima et al data from Ref [51],.…”

mentioning

confidence: 99%

First principles electromagnetic responses in medium-mass nuclei

2019

View full text Add to dashboard Cite

We review the recent progress made in the computation of electromagnetic response functions in light and medium-mass nuclei using coupled-cluster theory. We show how a many-body formulation of the Lorentz integral transform method allows to calculate the photoabsorption cross sections of 16,22 O and 40 Ca. Then, we discuss electromagnetic sum rules, with particular emphasis on the electric dipole polarizability, αD. By including triples corrections in coupled-cluster theory, we revisit 48 Ca, for which, beside the electric dipole polarizability, we had previously investigated the neutron and proton radii, as well as the size of the neutron-skin thickness [1]. We show that correlations among these observables still hold, albeit a better agreement with experiment is obtained for αD and the prediction of a small neutron-skin thickness is further corroborated. PACS. 21.60.De Ab initio methods -24.10.Cn Many-body theory -24.30.Cz Giant resonances -25.20.-x Photonuclear reactions arXiv:1905.02055v1 [nucl-th]

show abstract

Analog of the giant dipole resonance inHe4

Cited by 23 publications

References 21 publications

Towards a unified model of neutrino-nucleus reactions for neutrino oscillation experiments

Towards a unified model of neutrino-nucleus reactions for neutrino oscillation experiments

Spin-dipole strength functions of4He with realistic nuclear forces

First principles electromagnetic responses in medium-mass nuclei

Contact Info

Product

Resources

About