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SUMMARY:Electric monopole (E0) studies at iThemba LABS
DTSTART;VALUE=DATE-TIME:20260520T080000Z
DTEND;VALUE=DATE-TIME:20260520T082500Z
DTSTAMP;VALUE=DATE-TIME:20260624T082619Z
UID:indico-contribution-3802@indico.tlabs.ac.za
DESCRIPTION:Speakers: Maluba Vernon J. Chisapi (iThemba LABS/Stellenbosch 
 University)\nElectric monopole (E0) transition studies focus on nuclear tr
 ansitions between states of the same spin and parity (typically $0^{+}\\ri
 ghtarrow 0^{+}$)\, which are critical for probing nuclear structure\, shap
 e coexistence\, and deformation.  The E0 strengths ($\\rho ^{2}(E0)$) are 
 key parameters to understanding nuclear shape mixing and isomerism in vari
 ous nuclei\, including light\, odd-A\, and shape-coexistence in nuclei.\nB
 ecause single-photon emission is forbidden\, these transitions are measure
 d via internal conversion electrons (ICE) or electron-positron pair format
 ion (IPF)\, serving as a sensitive indicator of changes in the mean-square
 d charge radius. \nAs such\, high-precision electron spectrometers (e.g.\,
  Si(Li) detectors) and detector arrays consisting of HPGe and  LaBr3:Ce de
 tectors are used to measure internal conversion coefficients (ICC) to iden
 tify E0 components. \n iThemba LABS has\, in the last 5 to 10 years\, been
  developing spectrometers suited for E0 transition studies. This talk will
  focus on the in-house refurbishment of the existing solenoid magnetic len
 s into an electron and internal-pairs spectrometer\, the in-beam experimen
 t involving 30 MeV proton beam on a $^{50}$Ti target aimed at investigatin
 g the excited 0$^{+}_{2}$ state in $^{50}$Ti\, as well as future  experime
 ntal possibilities\, for example when this facility will be used in conjun
 ction with other existing spectrometers like the K600.\n\nhttps://indico.t
 labs.ac.za/event/139/contributions/3802/
LOCATION:NRF-iThemba LABS\, Old Faure Road\, Cape Town Auditorium
URL:https://indico.tlabs.ac.za/event/139/contributions/3802/
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