<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mover accent="true"><mml:mi>ν</mml:mi><mml:mo>¯</mml:mo></mml:mover><mml:mi>l</mml:mi></mml:msub></mml:math>induced pion production from nuclei at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mo>∼</mml:mo><mml:mn>1</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>GeV</mml:mi></mml:math>

Alam, M. Rafi; Chauhan, S.; Athar, M. Sajjad; Singh, Sweta

doi:10.1103/physrevd.88.077301

Cited by 14 publications

(19 citation statements)

References 19 publications

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“…Apart from the Fermi motion of the initial nucleon and the mean field potential felt by the hyperons, estimated to be negligible [163], there are important FSI effects. The hyperons produced in the reactions of equations (42) and (43) An important issue brought up in [163] and elaborated further in [167] is that, owing to their weak decays π → Y N , hyperons become a source of pions in experiments with antineutrino beams. As can be seen from figure 13, at low incident energies (550 MeV for π − and 650 for π 0 ) the cross section for pion production from hyperons becomes larger than the one from Δ (1232) excitation, which is the dominant mechanism at higher energies (see section 4 for more details about weak pion production).…”

Section: Qe Production Of Hyperonsmentioning

confidence: 99%

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Progress and open questions in the physics of neutrino cross sections at intermediate energies

2014

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New and more precise measurements of neutrino cross sections have renewed interest in a better understanding of electroweak interactions on nucleons and nuclei. This effort is crucial to achieving the precision goals of the neutrino oscillation program, making new discoveries, like the CP violation in the leptonic sector, possible. We review the recent progress in the physics of neutrino cross sections, putting emphasis on the open questions that arise in the comparison with new experimental data. Following an overview of recent neutrino experiments and future plans, we present some details about the theoretical development in the description of (anti)neutrino-induced quasielastic (QE) scattering and the role of multi-nucleon QE-like mechanisms. We cover not only pion production in nucleons and nuclei but also other inelastic channels including strangeness production and photon emission. Coherent reaction channels on nuclear targets are also discussed. Finally, we briefly describe some of the Monte Carlo event generators, which are at the core of all neutrino oscillation and cross-section measurements.

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Section: Qe Production Of Hyperonsmentioning

confidence: 99%

“…This partially compensates the Cabibbo suppression, particularly for heavy nuclei where absorption is strong. In [167] it has been shown that for atmospheric and MiniBooNE ν fluxes, a significant fraction of the π − and π 0 originate indeed from hyperon decays.…”

Section: Qe Production Of Hyperonsmentioning

confidence: 99%

Progress and open questions in the physics of neutrino cross sections at intermediate energies

2014

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“…Λ/Σ −→ N π, and the structure of the angular distribution of pions will give information about the polarization of hyperons. The polarization observables of the hyperons produced in the quasielastic reactions induced byν µ are shown to be more sensitive to the weak axial form factors [41][42][43][44][45][46][47].…”

Section: Introductionmentioning

confidence: 99%

Weak quasielastic electroproduction of hyperons with polarization observables

et al. 2017

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With the availability of high luminosity electron beam at the accelerators, there is now the possibility of studying weak quasielastic hyperon production off the proton, i.e. e − p → νeY (Y = Λ, Σ 0 ), which will enable the determination of the nucleon-hyperon vector and axial-vector transition form factors at high Q 2 in the strangeness sector and provide test of the Cabibbo model, G-invariance, CVC, PCAC hypotheses and SU(3) symmetry. In this work, we have studied the total cross section, differential cross section as well as the longitudinal and perpendicular components of polarization of the final hyperons (Λ and Σ 0 produced in these reactions) and presented numerical results for these observables and their sensitivity to the transition form factors.

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“…(6) corresponds to the amputated amplitude (without Dirac spinors) obtained from Eqs. (7) and (12) of sections II A and II B discussed below, i.e, j µ cc | i =ū Ξ (p Ξ )J µ i u N (p), and the total hadron current is J µ = i J µ i , where the index i runs over all the possible contributions (Feynman diagrams) that yield the same final hadron state specified in Eqs. (1).…”

Section: Modelmentioning

confidence: 99%

Weak production of strange Ξ baryons off the nucleon

Alam

Simó

2019

Phys. Rev. D

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The charged current Cabibbo-supressed associated KΞ production off the nucleon induced by anti-neutrinos is studied at low and intermediate energies. The non-resonant terms are obtained using a microscopical model based on the SU(3) chiral Lagrangian. The basic parameters of the model are fπ, the pion decay constant, Cabibbo's angle, the proton and neutron magnetic moments and the axial vector coupling constants for the baryons octet, D and F, that are obtained from the analysis of the semileptonic decays of neutron and hyperons. In addition, we also consider Σ * (1385) resonance, which can decay in KΞ final state when this channel is open. The studied mechanism is the prime source of Ξ production at anti-neutrino energies around 2 GeV and the calculated cross sections at these energies can be measured at the current and future neutrino experiments. * rafi.alam.amu@gmail.com † ruizsig@ugr.es 1 |∆S| = 2 processes are highly suppressed.

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ν¯linduced pion production from nuclei at∼1 GeV

Cited by 14 publications

References 19 publications

Progress and open questions in the physics of neutrino cross sections at intermediate energies

Progress and open questions in the physics of neutrino cross sections at intermediate energies

Weak quasielastic electroproduction of hyperons with polarization observables

Weak production of strange Ξ baryons off the nucleon

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