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Title of Journal: Nuovo Cim

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Abbravation: Il Nuovo Cimento (1955-1965)

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Società Italiana di Fisica

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1827-6121

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Angular distributions of protons emitted inSupers

Authors: L Colli I Iori G Marcazzan F Merzari A M Sona P G Sona
Publish Date: 2008/03/18
Volume: 17, Issue: 5, Pages: 634-643
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Abstract

In this paper measurements are described on angular distributions of protons from the reactions32Sn p and24Mgn p with 14 MeV energy neutrons For each element the angular distribution is studied for a well defined group of protons corresponding to a level group which originate a grossstructure Experimental results allow the following conclusions 1 the reaction mechanism for protons in the grossstructures is certainly a direct surface effect 2 it is possible to determine thel values of orbits from which the proton is taken and where the neutron is captured In both cases a part of the spectrum can be attributed to a statistical evaporation processIn questo lavoro sono descritte le misure della distribuzione angolare dei protoni emessi nelle reazioni32Sn p e24Mgn p In ognuno dei due casi viene particolarmente studiata la distribuzione angolare di un ben definito gruppo di protoni corrispondenti ad un gruppo di livelli che dà origine ad una « grossstructure » I risultati sperimentali portano alle seguenti conclusioni 1 il meccanismo della reazione per i protoni compresi nei gruppi delle « grossstructures » è certamente un effetto diretto di superficie 2 è possibile determinare le orbite da cui viene emesso il protone e in cui viene catturato il neutrone In ambedue i casi una parte dello spettro potrebbe essere dovuta ad un processo di evaporazione statistica

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Other Papers In This Journal:
  1. Bound states, shadow states and mandelstam representation
  2. Effects of phonon pulses on the energy gap in a superconductor
  3. The renormalization of Dirac-Maxwell equations
  4. Remarks on the generators of the SU 3 group
  5. On l -forbidden M 1 transitions
  6. Determination of the ultrasonic absorption coefficient in liquids by the thermal method
  7. On a quadrilinear K 2 -π 2 coupling
  8. Large-angle cross-sections p+p→A+B and π+p→A+B at high energies predicted by the statistical model
  9. The equilibrium phase transition in liquid helium
  10. The range in G5 nuclear emulsion of protons with energies 87, 118 and 146 MeV
  11. The grain-density of emulsion tracks
  12. Muon capture in certain light nuclei
  13. A novel approach to elementary scattering theory
  14. Compound-nucleus radiative capture cross-section in the mev energy-range and nuclear-level density
  15. Sur le calcul des constantes vibrationnelles de l’oxyde azoteux
  16. Polarization effects in bremsstrahlung
  17. A renormalized, ghost-free lee model
  18. Investigation of the possibility of a π-λ resonance in the case of different parities of λ and ɛ
  19. The high-energy muon flux at sea level obtained from an observation of the burst-size spectrum
  20. $$\bar K - \mathcal{N}$$ scattering in the mandelstam representationscattering in the mandelstam representation
  21. 232 Th and 238 U fission induced by low-energy monochromatic γ-rays
  22. Representations of the Poincaré group associated to complex energy-momentum
  23. Representations of the Poincaré group associated to complex energy-momentum
  24. On the measurements of ionization in nuclear plates
  25. On the energy and pulse spectra of a fast ionization chamber
  26. The scattering of photons by photons
  27. On a new approach to alpha-decay and its application to the angular correlation of the decay $${}^{233}U\mathop \to \limits_\alpha {}^{229}Th\mathop \to \limits_\gamma {}^{229}Th$$
  28. Measurements on the cosmic radiation intensity in the mont blanc tunnel
  29. Energy-momentum transfers in high-energy nuclear collisions
  30. Multiple small angle scattering of waves by an inhomogeneous medium
  31. Effacement des alpha dans les plaques ilford C 2
  32. K meson exposures in water-soaked emulsions
  33. Mass-spectroscopic atomic mass differences
  34. Spin-orbit potential in pseudoscalar theory
  35. Remarks on triplet models in SU 3 symmetry
  36. The behavior of finite particles in conformal-covariant weak field theory
  37. Pion-hyperon scattering
  38. Cloud chamber study of cosmic ray electronic showers under dense materials (II)
  39. A formalism for parity-nonconserving reactions. — I
  40. A correlation between the emission of white light and cosmic radiation by a solar flare
  41. Complex angular momentum and energy in three-particle amplitudes
  42. Large spin propagators and their ambiguity
  43. Search for the photoproduction of the η 0 -Meson
  44. Macroscopic motion of classical spinning particles
  45. Intensity distribution of high energy pions in the atmosphere
  46. On the existence and the unitary property of the scattering operator
  47. Approximation of velocity-dependent potentials by separable kernels
  48. Equivalence among fermion symmetry-multiplets and choice of the symmetry group for strong interactions
  49. Energy determination from the angular distribution of the secondary shower particles
  50. Analisi fotometrica delle tracce nelle emulsioni nucleari I. — Dispositivo sperimentale
  51. The energy dependence of meson multiplicity in the high-energy interactions
  52. On the mechanism of the pinch effect
  53. Matter and anti-matter
  54. Désintégrations des noyaux légers de l’émulsion nucléaire par des mésons π - lents
  55. « Ambiguity » of harmonic-oscillator commutation relations
  56. Investigations of bremsstrahlung of electrons in the energy interval (10 11 ÷ 10 12 ) eV
  57. Lagrangian theory for neutral massive spin-2 fields
  58. Mesure de l’énergie des paires d’électrons de plus de 1 GeV dans les émulsions nucléaires
  59. The high-energy limit of the statistical model
  60. Lorentz transformations of thermodynamic quantities
  61. Effect of nuclear magnetic moment on the bremsstrahlung of electrons
  62. On the trapping of Λ 0 -hyperons following the absorptions at rest of Σ − -hyperons in emulsion nuclei
  63. On the trident cross-section between 1 and 10 GeV
  64. Singular integral equations in quantum field theory
  65. Singular integral equations in quantum field theory
  66. Multiple-pion production by high-energy muons
  67. K + -deuterium inelastic and exchange scattering. — II
  68. A technique for eliminating the variation of mass with velocity in relativistic problems
  69. Requirements of self-consistency in quantum field theories
  70. Unitarity of the S -matrix and analyticity — I
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