Il Nuovo Cimento B (1965-1970)

, Volume 54, Issue 1, pp 37–52 | Cite as

Statistical fluctuation analysis of the26Mg(3He, α)25Mg reaction

  • A. Rubbino
Article
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Summary

The26Mg(3He, α) reaction has been studied at\(E_{{}^3He} = (4 \div 6)\) MeV for the α0, α1, α2, α3 and α4 groups. The excitation functions were measured in steps of 50 keV with3He energy resolution better than 25 keV and at angles between 15° and 165° in steps of 7.5°. The data have been analysed on the basis of statistical fluctuation theory, obtaining information on some nuclear parameters. Methods of statistical mathematics not so far utilized on the fluctuation analysis have been used in order to evaluate the compound-nucleus contribution in the presence of large direct effects.

Keywords

Energy Resolution Excitation Function Compound Nucleus Sono State Statistical Fluctuation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Аналиэ статистических флуктуации для реакции26Mg(3He, α)25Mg

Реэюме

Была исследована реакция26Mg(3He, α)25Mg при\(E_{{}^3He} = (4 \div 6)\) МзВ для α0, α1, α2, α3,и α4 групп. Иэмерялась функция воэбуждения при щаге 50 кзВ с знергетическим раэрещением для3He лучще чем 25 кзВ и при углах между 15° и 165° с щагом 7.5°. Полученные данные аналиэировались на основе теории статистических флуктуаций, причем, получена информация о некоторых ядерных параметрах. Методы статистической математики, до сих пор не испольэованные в аналиэе флуктуаций, испольэуются эдесь для оценки вклада компаунд-ядер при наличии больщих прямых зффектов.

Riassunto

La reazione26Mg(3He,α) è stata studiata per i gruppiα0,α1,α2,α3 edα4 ad energie di3He comprese tra 4 e 6 MeV. Sono state misurate le funzioni di eccitazione variando con passo di 50 keV l’energia delle particelle incidenti la cui risoluzione era migliore di 25 keV. Le misure sono state eseguite a 21 angoli compresi tra 15° e 165°. I risultati sperimentali sono stati analizzati sulla base della teoria delle fluttuazioni statistiche, ricavandone informazioni su alcuni parametri nucleari. Metodi di matematica statistica fin’ora noa utilizzati in questo tipo di analisi sono stati usati al fine di valutare il contributo di nucleo composto in presenza di grande effetto diretto.

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Copyright information

© Società Italiana di Fisica 1968

Authors and Affiliations

  • A. Rubbino
    • 1
    • 2
  1. 1.Istituto di Fisica dell’UniversitàCatania
  2. 2.Istituto Nazionale di Fisica NucleareSezione Siciliana di CataniaItaly

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