Effective Charges Near 56Ni and Production of Anti-Nuclei Studied with Heavy-Ion Reactions

Rickard du Rietz

Research output: ThesisDoctoral Thesis (compilation)

206 Downloads (Pure)

Abstract

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.
Original languageEnglish
QualificationDoctor
Awarding Institution
  • Nuclear physics
Supervisors/Advisors
  • Gustafson, Hans-Åke, Supervisor, External person
  • Rudolph, Dirk, Supervisor
Award date2005 Mar 3
Place of PublicationLUND
Publisher
Print ISBNs91-628-6394-0
Publication statusPublished - 2005

Bibliographical note

Defence details

Date: 2005-03-03
Time: 10:15
Place: Department of Physics, Lecture Hall B

External reviewer(s)

Name: Baktash, Cyrus
Title: Dr
Affiliation: Oak Ridge National Laboratory, USA

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<div class="article_info">K. Adcox et. el.. <span class="article_issue_date">2003</span>. <a href="javascript:downloadFile(544347)" class="article_link">Construction and Performance of the PHENIX Pad Chambers</a> <span class="journal_series_title">Nuclear instruments & methods in physics research. Section A</span>, <span class="journal_volume">vol 497</span> <span class="journal_pages">pp 263</span>. <span class="journal_distributor">Elsevier</span></div>
<div class="article_info">R. du Rietz et al.. <span class="article_issue_date">2004</span>. <a href="javascript:downloadFile(544348)" class="article_link">Effective Charges in the fp Shell</a> <span class="journal_series_title">Physical review letters</span>, <span class="journal_volume">vol 93</span> <span class="journal_pages">pp 222501</span>. <span class="journal_distributor">American Physical Society</span></div>

Subject classification (UKÄ)

  • 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

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  • Investigation of High-spin States in 53Fe

    du Rietz, R., Williams, SJ., Rudolph, D., Ekman, J., Fahlander, C., Andreoiu, C., Axiotis, M., Bentley, MA., Carpenter, MP., Chandler, C., Charity, RJ., Clark, RM., Cromaz, M., Dewald, A., de Angelis, G., Della Vedova, F., Fallon, P., Gadea, A., Hammond, G., Ideguchi, E. & 14 others, Lenzi, SM., Macchiavelli, AO., Marginean, N., Mineva, M., Moller, O., Napoli, DR., Nespolo, M., Reviol, W., Rusu, C., Saha, B., Sarantites, DG., Seweryniak, D., Tonev, D. & Ur, CA., 2005, In: Physical Review C (Nuclear Physics). 72, 1, 014307.

    Research output: Contribution to journalArticlepeer-review

    9 Citations (SciVal)
  • Effective Charges in the fp Shell

    du Rietz, R., Ekman, J., Rudolph, D., Fahlander, C., Dewald, A., Moller, O., Saha, B., Axiotis, M., Bentley, MA., Chandler, C., de Angelis, G., Della Vedova, F., Gadea, A., Hammond, G., Lenzi, SM., Marginean, N., Napoli, DR., Nespolo, M., Rusu, C. & Tonev, D., 2004, In: Physical Review Letters. 93, 22, 222501.

    Research output: Contribution to journalLetterpeer-review

    52 Citations (SciVal)

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