Hypernuclear physics at $\overline{\mbox{P}}$ ANDA

Achenbach, P.; Bleser, S.; Pochodzalla, J.; Lorente, A. Sánchez; Steinen, M.

doi:10.1007/978-94-007-4890-3_16

Cited by 1 publication

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References 5 publications

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“…Obviously, more electroproduction data with the same kinematics but within the range of Q 2 = 0.05 − 0.5 GeV 2 are needed to support the present conclusion. Such experimental data will be available in the near future from MAMI collaboration [71].…”

Section: New Mami Data At Low Qmentioning

confidence: 99%

Electromagnetic production ofKΣon the nucleon near threshold

Mart

2014

Phys. Rev. C

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Photo-and electroproduction of KΣ have been investigated near their production thresholds by using an effective Lagrangian approach. For this purpose, the background amplitude is constructed from suitable Feynman diagrams, whereas the resonance terms are calculated by means of the Breit-Wigner form of multipoles. Experimental data available in the proton channels (K + Σ 0 and K 0 Σ + ) with energies up to 50 MeV above the thresholds have been utilized to extract the unknown parameters. In these proton channels the calculated observables fit nicely the experimental data, whereas in the neutron channels (K + Σ − and K 0 Σ 0 ) the predicted observables contain some uncertainties due to the the uncertainties in the values of helicity photon couplings. To this end, new K 0 Σ + photoproduction data are urgently required. The present analysis indicates the validity of the PΛ = − 1 3 PΣ relation derived a long time ago. In the electroproduction sector the present analysis confirms the smooth transition between photoproduction and low Q 2 electroproduction data. The effect of new Crystall Ball data is shown to be mild at the backward angles. It is also found that the electroproductions of K 0 Σ + and K 0 Σ 0 are practically not the suitable reactions for investigating the K 0 charge form factor, since the effect is small.

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Section: New Mami Data At Low Qmentioning

confidence: 99%

Electromagnetic production ofKΣon the nucleon near threshold

Mart

2014

Phys. Rev. C

View full text Add to dashboard Cite

show abstract

Hypernuclear physics at $\overline{\mbox{P}}$ ANDA

Cited by 1 publication

References 5 publications

Electromagnetic production ofKΣon the nucleon near threshold

Electromagnetic production ofKΣon the nucleon near threshold

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