Weak quasielastic production of hyperons

Singh, Sweta; Vacas, M. J. Vicente

doi:10.1103/physrevd.74.053009

Cited by 46 publications

(101 citation statements)

References 84 publications

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“…There are some other W + N N → N N π mechanisms which should be taken into account, as well as the contribution of higher resonances [58]. Though small, also kaon [59], hyperon [60] and two pion [61] production channels should be considered to end up with a robust theoretical model above 1 GeV.…”

Section: Resultsmentioning

confidence: 99%

Inclusive charged-current neutrino-nucleus reactions

2011

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We present a model for weak CC induced nuclear reactions at energies of interest for current and future neutrino oscillation experiments. This model is a natural extension of the work of Refs. [1,2], where the QE contribution to the inclusive electron and neutrino scattering on nuclei was analyzed. The model is based on a systematic many body expansion of the gauge boson absorption modes that includes one, two and even three body mechanisms, as well as the excitation of ∆ isobars. The whole scheme has no free parameters, besides those previously adjusted to the weak pion production off the nucleon cross sections in the deuteron, since all nuclear effects were set up in previous studies of photon, electron and pion interactions with nuclei. We have discussed at length the recent charged current quasi-elastic MiniBooNE cross section data, and showed that two nucleon knockout mechanisms are essential to describe these measurements.

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Section: Resultsmentioning

confidence: 99%

Inclusive charged-current neutrino-nucleus reactions

2011

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“…The authors of Refs. [14] and [15] also presented detailed models for neutrino-induced reactions. Specifically, they…”

Section: Discussionmentioning

confidence: 99%

Strange-particle production via the weak interaction

et al. 2010

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The differential cross sections for the neutrino-induced weak charged current production of strange particles in the threshold energy region are presented. The general representation of the weak hadronic current is newly developed in terms of eighteen unknown invariant amplitudes to parametrize the hadron vertex. The Born term approximation is used for the numerical calculations in the framework of the Cabibbo theory and SU(3) symmetry. For unpolarized octet baryons four processes are investigated, whereas in the case of polarized baryons only one process is chosen to study the sensitivity of the differential cross section to the various polarizations of the initial state nucleon and the final state hyperon.

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“…43 the vector form factors are determined from the corresponding electromagnetic form factors by using the CVC hypothesis, whereas we adopt the method used by Ref. 44 in order to determine the axial form a The detailed derivation of the most general hadronic weak current operator and the extraction of these amplitudes from the Born diagrams for CC KY-production processes are given in Ref. 19 . factor.…”

Section: Born Term Approximationmentioning

confidence: 99%

Associated Hyperon–kaon Production via Neutrino–nucleus Scattering

Adera

Ventel

2011

Int. J. Mod. Phys. E

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We present the investigation of the neutrino-induced strangeness associated production on nuclei in the relativistic plane wave impulse approximation (RPWIA) framework at the intermediate neutrino energies. In this study, the elementary hadronic weak amplitudes are embedded inside the nuclear medium for the description of the exclusive channels of neutrino-nucleus interactions. These amplitudes are extracted using a modeldependent evaluation of the hadronic vertex using the Born term approximation in which the application of the Cabibbo V-A theory and SU(3) symmetry are assumed to be valid. The nuclear effects are included via the bound state wavefunctions of the nucleon obtained from the relativistic mean field (RMF) models. Two kinematics settings are used to examine various distributions of the differential cross section in the rest frame of the target nuclei. The numerical results are obtained for the neutrino-induced chargedcurrent (CC) K + Λ-production on bound neutrons in 1s 1/2 and 1p 3/2 orbitals of 12 C.The angular distributions are forward peaked under both kinematic settings, whereas under the quasifree setting the cross sections tend mimic the missing momentum distribution of the bound nucleon inside the nucleus.

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Weak quasielastic production of hyperons

Cited by 46 publications

References 84 publications

Inclusive charged-current neutrino-nucleus reactions

Inclusive charged-current neutrino-nucleus reactions

Strange-particle production via the weak interaction

Associated Hyperon–kaon Production via Neutrino–nucleus Scattering

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