In-medium properties of hadrons—observables

Falter, T.; Lehr, J.M.; Mosel, U.; Muehlich, P.; Post, M.

doi:10.1016/j.ppnp.2004.02.012

Cited by 11 publications

(5 citation statements)

References 50 publications

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“…Originally developed to describe heavy-ion collisions [72,73,74], the Giessen BUU model (GiBUU) has been extended to describe interactions of pions, photons and electrons with nuclei [68,70,75,76,77]. In particular, it has been successfully tested against the existing data on the interaction of photons and electrons with nuclei [78,79] -an important prerequisite for any model aiming at the description of the interaction of neutrinos with nuclei. The applicability to and test in many different nuclear reactions is a strength of our model, which describes many different processes using the same physics input.…”

Section: Final-state Interactionsmentioning

confidence: 99%

Charged current neutrino-nucleus interactions at intermediate energies

2006

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We have developed a model to describe the interactions of neutrinos with nucleons and nuclei, focusing on the region of the quasielastic and ∆(1232) peaks. We describe neutrino-nucleon collisions with a fully relativistic formalism which incorporates state-of-the-art parametrizations of the form factors for both the nucleon and the N − ∆ transition. The model has then been extended to finite nuclei, taking into account nuclear effects such as Fermi motion, Pauli blocking (both within the local density approximation), nuclear binding and final-state interactions. The in-medium modification of the ∆ resonance due to Pauli blocking and collisional broadening have also been included. Finalstate interactions are implemented by means of the Boltzmann-Uehling-Uhlenbeck (BUU) coupledchannel transport model. Results for charged current inclusive cross sections and exclusive channels as pion production and nucleon knockout are presented and discussed.

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Section: Final-state Interactionsmentioning

confidence: 99%

Charged current neutrino-nucleus interactions at intermediate energies

2006

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“…In particular, an important prerequisite for any model aiming at the description of the interaction of neutrinos with nuclei is a good description of electron-or photon-induced reactions. There, extensive tests against existing data are possible and have been successfully performed [76,77].…”

Section: Neutrino-nucleus Reactionsmentioning

confidence: 99%

Neutral current neutrino-nucleus interactions at intermediate energies

2006

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We have extended our model for charged current neutrino-nucleus interactions developed in Phys. Rev. C 73, 065502 (2006) to neutral current reactions. For the elementary neutrino-nucleon interaction, we take into account quasielastic scattering, ∆ excitation and the excitation of the resonances in the second resonance region. Our model for the neutrino-nucleus collisions includes in-medium effects such as Fermi motion, Pauli blocking, nuclear binding, and final-state interactions. They are implemented by means of the Giessen Boltzmann-Uehling-Uhlenbeck (GiBUU) coupledchannel transport model. This allows us to study exclusive channels, namely pion production and nucleon knockout. We find that final-state interactions modify considerably the distributions through rescattering, charge-exchange, and absorption. Side-feeding induced by charge-exchange scattering is important in both cases. In the case of pions, there is a strong absorption associated with the in-medium pionless decay modes of the ∆, while nucleon knockout exhibits a considerable enhancement of low energy nucleons due to rescattering. At neutrino energies above 1 GeV, we also obtain that the contribution to nucleon knockout from ∆ excitation is comparable to that from quasielastic scattering.

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“…Such experiments using more elementary projectiles like photons, protons and pions are of special interest as they provide an excellent testing ground for theoretical models based on the assumption of nuclear matter in equilibrium with only moderate densities (≤ ρ 0 ) [26,27] (how to go beyond this low density approximation see [28]). Following this proposal, a recent investigation of the dilepton invariant mass spectrum in pA reactions interpreted in terms of a modification of the ρ and ω spectral densities has been made at KEK [29,30,31].…”

Section: Introductionmentioning

confidence: 99%

The spectral function of the ω meson in nuclear matter from a coupled-channel resonance model

et al. 2006

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We calculate the spectral function of the ω meson in nuclear matter at zero temperature by means of the low-density theorem. The ωN forward scattering amplitude is calculated within a unitary coupled-channel effective Lagrangian model that has been applied successfully to the combined analysis of pion-and photon-induced reactions. While the peak of the ω spectral distribution is shifted only slightly, we find a considerable broadening of the ω meson due to resonance-hole excitations. For ω mesons at rest with respect to the surrounding nuclear medium, we find an additional width of about 60 MeV at saturation density.

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In-medium properties of hadrons—observables

Cited by 11 publications

References 50 publications

Charged current neutrino-nucleus interactions at intermediate energies

Charged current neutrino-nucleus interactions at intermediate energies

Neutral current neutrino-nucleus interactions at intermediate energies

The spectral function of the ω meson in nuclear matter from a coupled-channel resonance model

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