Charged-current neutrino and antineutrino scattering off<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">Cd</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>116</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>described by Skyrme forces

Almosly, Wafa; Carlsson, B. G.; Dobaczewski, J.; Suhonen, J.; Toivanen, J.; Veselý, Petr; Ydrefors, E.

doi:10.1103/physrevc.89.024308

Cited by 15 publications

(17 citation statements)

References 28 publications

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“…This owes to the fact that the present pnQRPA calculations are not self-consistent, i.e., the single-particle energies are not generated by the same Hamiltonian which is used in the pnQRPA calculations, as discussed in [34]. This might increase artificially the 0+ contributions in the Ou/3/3 NMEs, but as seen in Sec.…”

Section: A Determination Of Model Parametersmentioning

confidence: 66%

Nuclear matrix elements for0νββdecays with light or heavy Majorana-neutrino exchange

2015

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We compute the nuclear matrix elements (NMEs) corresponding to the neutrinoless double beta (OvfiP) decays of nuclei which attract current experimental interest. We concentrate on ground-state-to-ground-state decay transitions mediated by light (1-NMEs) or heavy (h-NMEs) Majorana neutrinos. The computations are done in realistic single-particle model spaces using the proton-neutron quasiparticle random-phase approximation (pnQRPA) with two-nucleon interactions based on the Bonn one-boson-exchange G matrix. Both the 1-NMEs and the h-NMEs include the appropriate short-range correlations, nucleon form factors, and higher-order nucleonic weak currents. In addition, both types of NMEs are corrected for the isospin symmetry by the recently proposed method in which the particle-particle proton-neutron interaction parameter (gpp) is decomposed into isoscalar (£pp=°) and isovector ( g^1) parts. A detailed analysis of the 1-NMEs and the h-NMEs is performed to benchmark our computer code and to compare with other recent calculations which produce h-NMEs that are in tension with each other.

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Section: A Determination Of Model Parametersmentioning

confidence: 66%

Nuclear matrix elements for0νββdecays with light or heavy Majorana-neutrino exchange

2015

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“…In self-consistent Skyrme calculations, such as the ones which were performed in Ref. [29] for 116 Cd, the energy of the isobaric analog state is correctly reproduced. Therefore, in the present computations the energy of the corresponding pnQRPA state has been set to the experimental value by hand.…”

Section: A Nuclear Structurementioning

confidence: 86%

Neutrino-nucleus scattering offXe136

2015

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Background: Theoretical estimates of the cross sections for the neutrino-nucleus scattering off relevant nuclei for supernova neutrinos are essential for many applications in neutrino physics and astrophysics. The double-β-decaying nucleus 136 Xe nucleus is used by the EXO Collaboration in the search for neutrinoless double-β decay. A ton-scale experiment based on 136 Xe could also be used for studies of supernova neutrinos and/or solar neutrinos. Purpose: The purpose of the present work is, thus, to perform a study of the charged-current and neutral-current nuclear responses to supernova neutrinos for 136 Xe. Method: The cross sections are computed by using the well-established framework for studies of semileptonic processes in nuclei introduced by O'Connell, Donnelly, and Walecka [Phys. Rev. C 6, 719 (1972)]. The nuclear wave functions of the initial and the final nuclear states for the neutral-current neutrino-nucleus scattering in 136 Xe are computed by using the quasiparticle random-phase approximation (QRPA). Similarly, the pnQRPA is adopted to construct the initial and final nuclear states which are relevant for the charged-current reactions. The nuclear responses to supernova neutrinos are subsequently computed by folding the cross sections with appropriate energy spectra for the incoming neutrinos. Results: We present results for the cross sections of the charged-current and neutral-current neutrino and antineutrino scatterings off 136 Xe. Nuclear responses to supernova neutrinos are also given. For the considered scenario for the neutrino mixing we have found that neutrino interactions with matter and so-called collective neutrino oscillations enhance significantly the neutrino and antineutrino flux-averaged cross sections. Conclusions: We have found that for the charged-current and neutral-current neutrino scatterings off 136 Xe transitions mediated by the 1 + multipole are the most important ones. However, for the charged-current antineutrino channel 0 + and 1 + transitions are largely suppressed due to the large neutron excess. Transitions to 1 − and 2 − final nuclear states are thus relatively more important for the charged-current antineutrino scattering.

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“…The NMEs of these processes are built from real or virtual transitions between the ground state of an initial nucleus and the ground and excited states of a daughter nucleus. In particular, the transitions in the charged-current neutrino-nucleus scattering [6][7][8] and 0νββ share many common features, like the possibility to feed (highly) excited J π = 0…”

Section: Introductionmentioning

confidence: 99%