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  • Fynbo, H. O. U. (author)

The beta 2p decay mechanism of Ar-31

  • Article/chapterEnglish2000

Publisher, publication year, extent ...

  • 2000

Numbers

  • LIBRIS-ID:oai:research.chalmers.se:d346e8e0-95cc-48b9-b466-fb45cb0db118
  • https://research.chalmers.se/publication/127920URI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • We have measured the beta-decay of Ar-31 with a high granularity setup sensitive to multiparticle decay branches. Two-proton emission is observed from the isobaric analog state in Cl-31 to the four lowest states in P-29 and furthermore from a large number of states fed in Gamow-Teller transitions. The mechanism of two-proton emission is studied via energy and angular correlations between the two protons. In all cases the mechanism is found to be sequential yielding information about states in S-30 up to 8 MeV excitation energy. Improved data on the beta-delayed one-proton branches together with the two-proton data provide precise information about the beta-strength distribution up to 15 MeV excitation energy.

Subject headings and genre

  • NATURVETENSKAP Fysik Subatomär fysik hsv//swe
  • NATURAL SCIENCES Physical Sciences Subatomic Physics hsv//eng
  • ar-31(beta(+)(p)) [from ca(p
  • t
  • pp energy and angular correlations
  • radioactivity
  • double sided si strip detector
  • on-line mass separation
  • cao target
  • branching ratios
  • s-30
  • ar-31 deduced beta 1p and beta 2p decay channels
  • ca-35
  • si p-i-n detectors
  • measured beta-delayed protons e-p
  • 3pxn) reaction]
  • delayed 2-proton emission
  • modes
  • nuclei
  • be-6
  • surface barrier si detector
  • cl-31 deduced levels
  • pi
  • al-22
  • e-2p
  • proton emission

Added entries (persons, corporate bodies, meetings, titles ...)

  • Borge, M. J. G. (author)
  • Axelsson, Leif,1970Chalmers tekniska högskola,Chalmers University of Technology (author)
  • Aysto, J. (author)
  • Bergmann, U. C. (author)
  • Fraile, L. M. (author)
  • Honkanen, A. (author)
  • Hornshoj, P. (author)
  • Jading, Y. (author)
  • Jokinen, A. (author)
  • Jonson, Björn,1941Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)bjn (author)
  • Martel, I. (author)
  • Mukha, I. (author)
  • Nilsson, Thomas,1965 (author)
  • Nyman, Göran Hugo,1943Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)f2bgn (author)
  • Oinonen, M. (author)
  • Piqueras, I. (author)
  • Riisager, K. (author)
  • Siiskonen, T. (author)
  • Smedberg, Martin,1967Chalmers tekniska högskola,Chalmers University of Technology (author)
  • Tengblad, O. (author)
  • Thaysen, J. (author)
  • Wenander, Fredrik,1969Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)wenander (author)
  • Chalmers tekniska högskola (creator_code:org_t)

Related titles

  • In:Nuclear Physics A677, s. 38-600375-9474

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