Skip to main content
SpringerLink
Log in

High-spin states in48Ti and46Ti

Состояния с высшими спинами в48Ti и46Ti

  • Published:
Il Nuovo Cimento A (1965-1970)

Summary

Strong γ-ray yrast cascades were observed in46,48Ti with the reactions44Ca(7Li, p2n)48Ti,27Al(24Mg, 3p)48Ti,48Ca(3He, 3n)48Ti and40Ca(12C, α2p)46Ti. In-beam γ-ray excitation functions, γ-ray angular distributions and γ-γ coincidences were performed. The following new levels were observed (E x in keV):48Ti: 3510.0, 6 +2 , 4565.9, 8+, 6104.7, 10+ and 6737.4 (11+, 12+);46Ti: 4643.5, (8+), 6242.0, (10+), 6514.0 (11+, 12+). All these new levels as well as the known yrast states in even-even 1f 7/2 nuclei are well understood in the frame of the extreme 1f 7/2)n shell model particularly the very-high-spin states.

Riassunto

Per mezzo delle reazioni44Ca(7Li, p2n)48Ti,27Al(24Mg, 3p)48Ti,48Ca(3He, 3n)48Ti e40Ca(12C, α2p)48Ti, sono state osservate in cascata transizioni γ fra stati yrast nei nuclei46Ti e48Ti. Per lo studio di tali nuclei, sono state impiegate le normali tecniche di spettroscopia γ sotto fascio quali le funzioni di eccitazione, le distribuzioni angolari e le coincidenze γ-γ. Si sono osservati nuovi livelli ad un’energia di eccitazione (E x in keV) di 3510.0, 6 +2 , 4565.9, 8+, 6104.7, 10+ e 6737.4 (11+, 12+) nel48Ti e 4643.5 (8+) 6242.0, (10+), 6514.0 (11+, 12+ nel46Ti. Tutti questi nuovi livelli allo stesso modo degli stati yrast noti nei nuclei pari-pari della regione 1f 7/2, specialmente quelli di alto valore del momento angolare (J≥6), sono soddisfacentemente interpretabili nell’ambito di semplici configurazioni del tipo (1f 7/2)n di modello a strati.

Резюме

Наблюдаются интенсивные каскады гамма-лучей в46,48Ti в следуюших реакциях:44Ca(7Li, p2n)48Ti,27Al(24Mg, 3p)48Ti,48Ca(3He, 3n)48Ti и40Ca(12C, α2p)46Ti. Определяются функции возбуждения, углобые распределения гамма-лучей и гаммагамма совпадения. Наблюдаются следующие новые уровни (E x в КэВ):48Ti: 3510.0, 6 +2 4565.9, 8+ 6104.7, 10+ и 6737.4, 11+, 12+);46Ti: 4643.5, (8+), 6242.0 (10+), 6514.0, (11+, 12+). Все эти новые уровни, а также известные состояния в четно-четных 1f 7/2 ядрах интерпретнруются в рамках (1f 7/2)n оболочечной модели, в частности, состояния с очень высокими спинами.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. W. Kutschera, R. B. Huber, C. Signorini andH. Morinaga:Phys. Rev. Lett.,33, 1108 (1974).

    Article  ADS  Google Scholar 

  2. W. Kutschera, R. B. Huber, C. Signorini andP. Blasi:Nucl. Phys.,210 A, 531 (1973).

    Article  ADS  Google Scholar 

  3. J. D. McCullen, B. F. Bayman andL. Zamick:Phys. Rev.,134, B 515 (1964); also Technical Report Palmer Physical NYO-9891 (1954) and private communication.

    Article  ADS  Google Scholar 

  4. J. Rapaport:Nucl. Data,4 B, 351 (1970) (48Ti);R. L. Auble:Nucl. Data,4 B, 269 (1970) (46Ti).

    Google Scholar 

  5. P. M. S. Lesser, D. Cline, P. Goode andR. N. Horosko:Nucl. Phys.,190 A, 597 (1972).

    Article  ADS  Google Scholar 

  6. O. Häusser, D. Pelte, T. K. Alexander andH. C. Evans:Nucl. Phys.,150 A, 417 (1970).

    Article  ADS  Google Scholar 

  7. A. Jamshidi andP. Alford:Phys. Rev. C,8, 1796 (1973).

    Article  ADS  Google Scholar 

  8. W. Dehnhardt, O. C. Kistner, W. Kutschera andM. J. Sann:Phys. Rev.,65, 1658 (1972).

    Google Scholar 

  9. G. Fortuna, M. Morando, R. A. Ricci, C. Signorini, R. H. Huber, W. Kutschera andH. Morinaga:Proceedings of the International Conference on Nuclear Structure and Spectroscopy, edited byH. P. Blok andA. E. L. Dieperink (Amsterdam, 1974), Vol.1, p. 85.

  10. C. Signorini:Rendiconti S.I.F., Course LXII (Bologna, 1976), p. 499.

  11. S. Lunardi: Tesi (Padova University, 1975) and to be published.

  12. J. Konijn, E. W. Lingeman andS. A. de Wit:Nucl. Phys.,90 A, 558 (1967).

    Article  ADS  Google Scholar 

  13. W. E. Dorembusch, O. Hansen, P. J. Pullen andT. A. Belote:Nucl. Phys.,81, 390 (1966).

    Article  Google Scholar 

  14. B. Haas, P. Taras, Y. C. Merdinger andR. Vaillancourt:Nucl. Phys.,238 A, 253 (1975).

    Article  ADS  Google Scholar 

  15. J. J. Kolata, J. W. Olness andE. K. Warburton:Phys. Rev. C,10, 1663 (1974).

    Article  ADS  Google Scholar 

  16. D. F. Geesaman, R. Malmin, R. L. McGrath, J. W. Noè andJ. Cerny:Phys. Rev. Lett.,34, 326 (1975).

    Article  ADS  Google Scholar 

  17. W. Kutschera, B. A. Brown andK. Ogawa: to be published.

  18. A. de Shalit andI. Talmi:Nuclear Shell Theory (New York, N. Y., 1963), p. 251.

  19. T. T. S. Kuo andG. E. Brown:Nucl. Phys.,114 A, 241 (1968).

    Article  ADS  Google Scholar 

  20. T. Hamada andI. D. Johnston:Nucl. Phys.,34, 382 (1962).

    Article  Google Scholar 

  21. A. E. L. Dieperink andP. J. Brussaard:Nucl. Phys.,106 A, 177 (1968).

    ADS  Google Scholar 

  22. J. P. Schiffer:Proceedings of the Topical Conference on the Structure of 1f 7/2 Nuclei, Padova, 1971, edited byR. A. Ricci (Bologna, 1971), p. 37.

  23. A. Bohr andB. Mottelson:Nuclear Structure, Vol.1 (New York, N. Y., 1969), p. 239.

    Google Scholar 

  24. G. Fortuna, S. Lunardi, M. Morando andC. Signorini:Simposium on Nuclear Structure, September 1975, Balatonfüred, Hungary.

Download references

Author information

Authors and Affiliations

  1. Istituto di Fisica dell’Università, Padova, Italia

    G. Fortuna, R. B. Huber, W. Kutschera, M. Morando, H. Morinaga, R. A. Ricci & C. Signorini

  2. Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Padova, Italy

    G. Fortuna, R. B. Huber, W. Kutschera, M. Morando, H. Morinaga, R. A. Ricci & C. Signorini

  3. Laboratori Nazionali, Legnaro (Padova), Italia

    G. Fortuna, R. B. Huber, W. Kutschera, M. Morando, H. Morinaga, R. A. Ricci & C. Signorini

  4. Physik Department E17 der Technischen Universität München, Garching b. München, Germany

    G. Fortuna, R. B. Huber, W. Kutschera, M. Morando, H. Morinaga, R. A. Ricci & C. Signorini

Authors
  1. G. Fortuna
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. R. B. Huber
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. W. Kutschera
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. M. Morando
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. H. Morinaga
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. R. A. Ricci
    View author publications

    You can also search for this author in PubMed Google Scholar

  7. C. Signorini
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Переведено редакцуей.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Fortuna, G., Huber, R.B., Kutschera, W. et al. High-spin states in48Ti and46Ti. Nuov Cim A 34, 321–344 (1976). https://doi.org/10.1007/BF02786995

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02786995

Search

Navigation