Angular distribution of photons from the delay of the GDR in hot and rotating light Yb nuclei from exclusive experiments

Maj, A.; Gaardhøje, J. J.; Ataç, A.; Mitarai, S.; Nyberg, J.; Virtanen, A.; Bracco, A.; Camera, F.; Million, B.; Pignanelli, M.

doi:10.1016/0375-9474(94)90347-6

Cited by 87 publications

(42 citation statements)

References 26 publications

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“…The experimental setup included the GARFIELD array [14], the HECTOR array [15] and 32 phoswitch detectors from FIASCO experiment [16]. The GARFIELD dE − E gaseous micro-strip and CsI(Tl) scintillation detectors, which covered range of angles: Θ = 30 • -85 • and φ = 0 • -360 • , were used to measure light charged particles.…”

Section: Introductionmentioning

confidence: 99%

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Ciemała¹,

Kmiecik²,

Kravchuk³

et al. 2011

Acta Phys. Pol. B

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We report on preliminary results from the experiment performed at Legnaro National Laboratories aiming at the investigation of the shape evolution of the 88 Mo nucleus. The GDR spectra obtained for two data sets measured at 48 Ti beam energy of 300 and 450 MeV corresponding to 3 and 3.8 MeV temperatures, respectively, are presented. The low energy component in GDR strength functions, similar to the theoretical predictions of LSD model, possibly indicates the presence of Jacobi shape transition.

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Section: Introductionmentioning

confidence: 99%

Untitled

Ciemała¹,

Kmiecik²,

Kravchuk³

et al. 2011

Acta Phys. Pol. B

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“…In particular, we propose such possible angular experimental measurements could be performed on the PROTEUS C-235 proton cyclotron (which produces a proton beam with energies 70-230 MeV) at the Henryk Niewodniczanski Institute of Nuclear Physics in Krakow with the use of the HECTOR array for the angular registering of the bremsstrahlung photons (see Ref. [67] for details, also see research [68][69][70][71][72][73][74][75] where such a facility was used).…”

Section: Discussionmentioning

confidence: 99%

New approach to determine proton-nucleus interactions from experimental bremsstrahlung data

Maydanyuk

Zhang

2015

Phys. Rev. C

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A new approach is presented to determine the proton-nucleus interactions from the analysis of the accompanying photon bremsstrahlung. We study the scattering of p + 208 Pb at the proton incident energies of 140 and 145 MeV, and the scattering of p + 12 C, p + 58 Ni, p + 107 Ag and p + 197 Au at the proton incident energy of 190 MeV. The model determines contributions of the coherent emission (formed by an interaction between the scattering proton and nucleus as a whole without the internal many-nucleon structure), incoherent emission (formed by interactions between the scattering proton and nucleus with the internal many-nucleon structure), and transition between them in dependence on the photon energy. The radius-parameter of the proton-nucleus potential for these reactions is extracted from the experimental bremsstrahlung data analysis. We explain the hump-shaped plateau in the intermediate-and high-energy regions of the spectra by the essential presence of the incoherent emission, while at low energies the coherent emission predominates which produces the logarithmic shape spectrum. We provide our predictions (in absolute scale) for the angular distribution of the bremsstrahlung photons in order to test our model, results and analysis in further experiments.

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“…The response function of multiplicity was generated using the iterative algorithm prescribed in Ref. [13]. According to this method, the probability of M number of γ rays hitting F number of detectors out of total N number of detectors is given by…”

Section: Data Reduction and Analysismentioning

confidence: 99%

Giant Dipole Resonance in A ~ 144 mass region

Mukul

Sugathan

Mazumdar

et al. 2013

EPJ Web of Conferences

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Abstract. Exclusive measurement of giant dipole resonance (GDR) γ rays has been performed in 144 Sm nucleus which was populated at near barrier energy using the heavy ion reaction of 28 Si beam on 116 Cd target. GDR γ rays were detected in coincidence with low energy γ rays using 32 elements 4π sum-spin spectrometer. The 144 Sm nucleus was populated at an excitation energy of 68 MeV in the temperature range of 1.1-1.3 MeV. The measured GDR widths in this temperature range are consistent with the Kusnezov's parametrization.

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Angular distribution of photons from the delay of the GDR in hot and rotating light Yb nuclei from exclusive experiments

Cited by 87 publications

References 26 publications

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New approach to determine proton-nucleus interactions from experimental bremsstrahlung data

Giant Dipole Resonance in A ~ 144 mass region

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