Effective Charges Near 56Ni and Production of Anti-Nuclei Studied with Heavy-Ion Reactions
Author
Summary, in English
This thesis presents the research performed within two different research groups using heavy-ion induced nuclear reactions. They offer the opportunity to investigate different properties of nuclear matter. The results are based on measurements using a variety of different experimental techniques.
The PHENIX experiment measured the production of deuteron and anti-deuterons at mid-rapidity in gold-gold collisions at the Relativistic Heavy-Ion Collider, RHIC. The invariant yields and transverse momentum spectra are presented. The results are not in agreement with a simple coalescence model with a constant coalescence paramete.
Excited states of atomic nuclei were populated using fusion-evaporation reactions. The emitted gamma rays were detected in large multi-detector arrays. One experiment was in conjunction with a plunger device. Lifetimes of analogue states in the A=51 mirror nuclei 51Fe and 51Mn were measured using the recoil distance Doppler shift (RDDS) technique. The deduced B(E2) values make possible an investigation of isoscalar and isovector polarization charges. A comparison between the experimental results and large-scale shell-model calculations yields a quantitative estimate of the effective nucleon charges in the fp-shell.
The PHENIX experiment measured the production of deuteron and anti-deuterons at mid-rapidity in gold-gold collisions at the Relativistic Heavy-Ion Collider, RHIC. The invariant yields and transverse momentum spectra are presented. The results are not in agreement with a simple coalescence model with a constant coalescence paramete.
Excited states of atomic nuclei were populated using fusion-evaporation reactions. The emitted gamma rays were detected in large multi-detector arrays. One experiment was in conjunction with a plunger device. Lifetimes of analogue states in the A=51 mirror nuclei 51Fe and 51Mn were measured using the recoil distance Doppler shift (RDDS) technique. The deduced B(E2) values make possible an investigation of isoscalar and isovector polarization charges. A comparison between the experimental results and large-scale shell-model calculations yields a quantitative estimate of the effective nucleon charges in the fp-shell.
Department/s
Publishing year
2005
Language
English
Full text
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Document type
Dissertation
Publisher
Intellecta DocuSYS AB
Topic
- Subatomic Physics
Keywords
- RDDS
- Nuclear physics
- Kärnfysik
- PHENIX
- RHIC
- mirror nuclei
- shell-model calculations
- fusion-evaporation reactions
- effective charges
- anti-deuteron
- Heavy-ion reactions
- Fysicumarkivet A:000
Status
Published
Supervisor
- Hans-Åke Gustafson
- Dirk Rudolph
ISBN/ISSN/Other
- ISBN: 91-628-6394-0
- ISRN: LUNFD6/(NFFR-1026)/1-152/(2005)
Defence date
3 March 2005
Defence time
10:15
Defence place
Department of Physics, Lecture Hall B
Opponent
- Cyrus Baktash (Dr)