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Mass measurement on the rp-process waiting point 72Kr

  • D. Rodrıguez
  • V. S. Kolhinen
  • G. Audi
  • J. Äystö
  • D. Beck
  • K. Blaum
  • G. Bollen
  • F. Herfurth
  • A. Jokinen
  • A. Kellerbauer
  • H. -J. Kluge
  • M. Oinonen
  • H. Schatz
  • E. Sauvan
  • S. Schwarz
ENAM 2004

Abstract.

With the aim of improving nucleosynthesis calculations, we performed for the first time, a direct high-precision mass measurement on the waiting point in the astrophysical rp-process 72Kr. We used the ISOLTRAP Penning trap mass spectrometer located at ISOLDE/CERN. The measurement yielded a relative mass uncertainty of δm/m = 1.2×10-7. In addition, the masses of 73Kr and 74Kr were measured directly with relative mass uncertainties of 1.0×10-7 and 3×10-8, respectively. We analyzed the role of 72Kr in the rp-process during X-ray bursts using the ISOLTRAP and previous mass values of 72-74Kr.

PACS.

07.75.+h Mass spectrometers 21.10.Dr Binding energies and masses 26.30.+k Nucleosynthesis in novae, supernovae and other explosive 

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References

  1. 1.
    H. Schatz, Phys. Rep. 294, 167 (1998).CrossRefGoogle Scholar
  2. 2.
    D. Rodríguez, Phys. Rev. Lett. 93, 161104 (2004).CrossRefPubMedGoogle Scholar
  3. 3.
    G. Bollen, Nucl. Instrum. Methods A 368, 675 (1996).Google Scholar
  4. 4.
    F. Herfurth, Nucl. Instrum. Methods A 469, 254 (2001).Google Scholar
  5. 5.
    K. Blaum, Nucl. Instrum. Methods B 204, 478 (2003). CrossRefGoogle Scholar
  6. 6.
    E. Kugler, Hyperfine Interact. 129, 23 (2000).CrossRefGoogle Scholar
  7. 7.
    H. Raimbault-Hartmann, Nucl. Instrum. Methods B 126, 378 (1997).CrossRefGoogle Scholar
  8. 8.
    G. Gräff, Z. Phys. A 297, 35 (1980).CrossRefGoogle Scholar
  9. 9.
    M.P. Bradley, Phys. Rev. Lett. 83, 4510 (1999).CrossRefGoogle Scholar
  10. 10.
    A. Kellerbauer, Eur. Phys. J. D 22, 53 (2003).Google Scholar
  11. 11.
    G. Audi, Hyperfine Interact. 132, 7 (2001).CrossRefGoogle Scholar
  12. 12.
    G. Audi, A.H. Wapstra, Nucl. Phys. A 595, 409 (1995).CrossRefGoogle Scholar
  13. 13.
    B.A. Brown, Phys. Rev. C 65, 045902 (2002).Google Scholar
  14. 14.
    H. Schatz, Phys. Rev. Lett. 86, 3471 (2001).CrossRefPubMedGoogle Scholar

Copyright information

© Società Italiana di Fisica and Springer-Verlag 2005

Authors and Affiliations

  • D. Rodrıguez
    • 1
  • V. S. Kolhinen
    • 2
  • G. Audi
    • 3
  • J. Äystö
    • 2
  • D. Beck
    • 1
  • K. Blaum
    • 1
    • 4
  • G. Bollen
    • 5
  • F. Herfurth
    • 1
  • A. Jokinen
    • 2
  • A. Kellerbauer
    • 6
  • H. -J. Kluge
    • 1
  • M. Oinonen
    • 7
  • H. Schatz
    • 5
    • 8
  • E. Sauvan
    • 6
  • S. Schwarz
    • 5
  1. 1.GSIDarmstadtGermany
  2. 2.University of JyväskyläJyväskyläFinland
  3. 3.CSNSM-IN2P3-CNRSOrsay-CampusFrance
  4. 4.Institute of PhysicsUniversity of MainzMainzGermany
  5. 5.NSCLMichigan State UniversityEast LansingUSA
  6. 6.Physics DepartmentCERNGenevaSwitzerland
  7. 7.Helsinki Institute of PhysicsUniversity of HelsinkiHelsinkiFinland
  8. 8.Joint Institute for Nuclear AstrophysicsMichigan State UniversityEast LansingUSA

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