Cluster Model Analysis of Pion Elastic and Inelastic Scattering from 12C

Ebrahim, A. A.

doi:10.1007/s13538-011-0022-5

Cited by 3 publications

(4 citation statements)

References 31 publications

(62 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Note that clear such a dependence of the spectra on the nuclear parameters of proton-nucleus potential has never been found previously. 20 40 60 80 100 120 (Edington 1966: [43]) and (Goethem 2002: [44]) (circular points) [calculations are along formalism [30] with electric component p el defined in Eqs. (36) in that paper (without magnetic terms pmag,1 and pmag,2 in Eqs.…”

Section: Discussionmentioning

confidence: 99%

“…[11]) have also been experimentally tested. Deformation lengths in inelastic scattering were extracted from experimental data [lengths for (2 + ; 4.44 MeV) and (3 − ; 9.64 MeV) states of 12 C [20], etc.]. These characteristics confirm perspectives of the study on pion-nucleus interaction (reactions), when electromagnetic measurements do not exist.…”

Section: Introductionmentioning

confidence: 99%

“…Optical model [6,10,14,[17][18][19], α-cluster model [20], DWIA collective model [11,12,14,16], microscopical form-factor model [11] have been used to analyze (and predict in some cases) total and differential cross section measurements. The parameters in pion-nucleus interaction in these models were determined by fitting procedures.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Manifestation of the important role of nuclear forces in the emission of photons in pion scattering off nuclei

Maydanyuk¹,

Zhang²,

Zou³

2018

Phys. Rev. C

View full text Add to dashboard Cite

Bremsstrahlung of photons emitted during the scattering of π + -mesons off nuclei is studied for the first time. Role of interactions between π + -mesons and nuclei in the formation of the bremsstrahlung emission is analyzed in details. We discover essential contribution of emitted photons from nuclear part of Johnson-Satchler potential to the full spectrum, in contrast to the optical Woods-Saxon potential. We observe unusual essential influence of the nuclear part of both potentials on the spectrum at high photon energies. This phenomenon opens a new experimental way to study and check non-Coulomb and nuclear interactions between pions and nuclei via measurements of the emitted photons. We provide predictions of the bremsstrahlung spectra for pion scattering off 44 Ca.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Manifestation of the important role of nuclear forces in the emission of photons in pion scattering off nuclei

Maydanyuk¹,

Zhang²,

Zou³

2018

Phys. Rev. C

View full text Add to dashboard Cite

show abstract

“…where R is the separation distance between the kaon and α-particle, V C (R) is the Coulomb potential which is taken to be that of a uniform charged sphere of radius R C = 1.2 A 1/3 fm [15], and A is the target mass number. The nuclear potential U N (R) is defined to be…”

Section: The Folding Modelmentioning

confidence: 99%

Cluster Model Analysis of Kaon Scattering from 12C

Ebrahim

2012

Braz J Phys

Self Cite

View full text Add to dashboard Cite

Angular distributions of differential cross sections for the interaction of K + mesons with 12 C nucleus at beam momenta of 635, 715, and 800 MeV/c have been analyzed using 3α-particle model of 12 C. Differential cross sections for inelastic transitions to the (2 + ; 4.44 MeV) and (3 − ; 9.64 MeV) states in 12 C are calculated, and deformation lengths δ 2 and δ 3 are extracted and consistent with other works. Good agreement with experimental data of elastic and inelastic K ± -12 C scattering is obtained. IntroductionThe K + nucleus scattering is of considerable interest because of relative weak kaon nucleon (KN) interaction. K + -nucleus cross sections should be fairly weak and the amplitudes reasonably simple because of the simplicity of K + N system. The K + -nucleus interaction is the weakest of any strongly interacting probe, and the resulting mean free path is expected to be large (in the order of 7 fm). Therefore, K + can penetrate quite freely into the central region of the target nucleus, having time to undergo predominantly single K + N collisions and appearing to be a good probe for the distribution of neutrons in nuclei, while electron scattering is applied to study the nuclear charge density. There is no true absorption of K + to complicate things, in distinction to the case of low energy π-nucleus scattering, where the mean free path is also large. Another difference is that K + wave lengths are small enough to sense individual nucleons within nuclei, where λ=2 fm for 50 MeV pion kentic energy while λ=0.5 fm for 715 MeV/c kaon lab momentum [1].On the contrary, the K − N system has many narrow resonances and there are open channels down to the K − N threshold. Cross sections are comparable to those for NN scattering. Therefore, we expect that K − -nucleus cross sections reflect these features: The interaction is strong and the amplitudes are expected to be complicated [2].Recently, coupled-channels calculations for elastic and inelastic scattering of K + at

show abstract