Relativistic nuclear structure effects in quasielastic neutrino scattering

Kim, Hungchong; Piekarewicz, J.; Horowitz, C. J.

doi:10.1103/physrevc.51.2739

Cited by 52 publications

(78 citation statements)

References 26 publications

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“…In presented calculations only density dependent part of the polarization tensors is taken into account [12]. Contributions from the divergent Feynman parts are omitted.…”

Section: Model Of the Nucleusmentioning

confidence: 99%

“…Following H. Kim et al [12] a short-range correlation effect is taken into account by introducing the LandauMigdal parameter (g ′ = 0.7) into the pion propagator. Using the interaction introduced above the ring random phase approximation is performed [19].…”

Section: Model Of the Nucleusmentioning

confidence: 99%

“…The inclusive cross section (normalized per one nucleon) for the neutrino-nucleus scattering is proportional to the imaginary part of the contraction of the polarization tensor with the lepton tensor [12]:…”

Section: Model Of the Nucleusmentioning

confidence: 99%

“…To make the description of the nucleus more realistic the effective mass of nucleons is considered and the ring random phase approximation (RPA) is done based on the residual interaction π+ρ+g ′ [12]. The RPA corrections are calculated by taking into account the infinite sum of one particle -one hole diagrams (p-h).…”

Section: Introductionmentioning

confidence: 99%

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Tau polarization in quasielastic charged-current neutrino(antineutrino)–nucleus scattering

Graczyk¹

2005

Nuclear Physics A

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The quasielastic charged-current (CC) tau neutrino (antineutrino)-nucleus scattering is considered. The dependence of tau polarization on nuclear-structure effects is discussed in detail. The description of the nucleus is based on the Mean-Field Theory (MFT). The ground state of nucleus is described using the Relativistic Fermi Gas model (FG). The effective mass is introduced as well as the ring Random Phase Approximation (RPA) effects are taken into account in the framework of relativistic meson-nucleon model. The Local Density Approximation (LDA) is used for the argon nucleus, having in mind possible application to the ICARUS experiment. The discussion concentrates on the threshold region where the τ − can be unpolarized and the nuclear effects play an important role.

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“…In presented calculations only density dependent part of the polarization tensors is taken into account [12]. Contributions from the divergent Feynman parts are omitted.…”

Section: Model Of the Nucleusmentioning

confidence: 99%

Section: Model Of the Nucleusmentioning

confidence: 99%

Section: Model Of the Nucleusmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Tau polarization in quasielastic charged-current neutrino(antineutrino)–nucleus scattering

Graczyk¹

2005

Nuclear Physics A

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“…While early calculations only were taking into account the nucleon mass reduction in the medium, important progress has been realized since then in order to include Hartree-Fock [10], random phase approximation (RPA) [11,12,13,14,15,16,17] or ladder [18,19,20,21,22,23,24] correlations. It is generally found that the neutrino opacities are suppressed by medium effects, if however no collective mode is excited [16].…”

Section: Introductionmentioning

confidence: 99%

Neutrino-nucleon scattering rate in proto-neutron star matter

Mornas

Perez

2002

Eur Phys J A

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We present a calculation of the neutrino-nucleon scattering cross section which takes into account the nuclear correlations in the relativistic random phase approximation. Our approach is based on a quantum hadrodynamics model with exchange of σ, ω, π, ρ and δ mesons. In view of applications to neutrino transport in the final stages of supernova explosion and protoneutron star cooling, we study the evolution of the neutrino mean free path as a function of density, proton-neutron asymmetry and temperature. Special attention was paid to the issues of renormalization of the Dirac sea, residual interactions in the tensor channel and meson mixing. It is found that RPA corrections, with respect to the mean field approximation, amount to only 10% to 15% at high density.

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Requirements on common solutions to the LSND and MiniBooNE excesses: a post-MicroBooNE study

Abdallah

Gandhi²,

Roy³

2022

J. High Energ. Phys.

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The strong statistical significance of an observed electron-like event excess in the MiniBooNE (MB) experiment, along with an earlier similar excess seen in the Liquid Scintillator Neutrino Detector (LSND), when interpreted in conjunction with recent MicroBooNE results may have brought us to the cusp of new physics discoveries. This has led to many attempts to understand these observations, both for each experiment individually and in conjunction, via physics beyond the Standard Model (SM). We provide an overview of the current situation, and discuss three major categories under which the many proposals for new physics fall. The possibility that the same new, non-oscillation physics explains both anomalies leads to new restrictions and requirements. An important class of such common solutions, which we focus on in this work, consists of a heavy 𝒪(MeV−sub-GeV) sterile neutral fermion produced in the detectors, (via up-scattering of the incoming muon neutrinos), and subsequently decaying to photons or e+e− pairs which mimic the observed signals. Such solutions are subject to strong demands from a) cross section requirements which would yield a sufficient number of total events in both LSND and MB, b) requirements imposed by the measured energy and angular distributions in both experiments and finally, c) consistency and compatibility of the new physics model and its particle content with other bounds from a diverse swathe of particle physics experiments. We find that these criteria often pull proposed solutions in different directions, and stringently limit the viable set of proposals which could resolve both anomalies. Our conclusions are relevant for both the general search for new physics and for the ongoing observations and analyses of the MicroBooNE experiment.

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Relativistic nuclear structure effects in quasielastic neutrino scattering

Cited by 52 publications

References 26 publications

Tau polarization in quasielastic charged-current neutrino(antineutrino)–nucleus scattering

Tau polarization in quasielastic charged-current neutrino(antineutrino)–nucleus scattering

Neutrino-nucleon scattering rate in proto-neutron star matter

Requirements on common solutions to the LSND and MiniBooNE excesses: a post-MicroBooNE study

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