Napredna pretraga

Pregled bibliografske jedinice broj: 438725

Polarization effects in the nuclear excitation by positron–electron annihilation


Kaliman, Zoran; Žauhar, Gordana; Jurković, Slaven
Polarization effects in the nuclear excitation by positron–electron annihilation // Nuclear Instruments and Methods in Physics Research Section A: accelerators, spectrometers, detectors and associated equipment, 619 (2010), 1/3; 18-20 doi:10.1016/j.nima.2009.10.158 (međunarodna recenzija, članak, znanstveni)


Naslov
Polarization effects in the nuclear excitation by positron–electron annihilation

Autori
Kaliman, Zoran ; Žauhar, Gordana ; Jurković, Slaven

Izvornik
Nuclear Instruments and Methods in Physics Research Section A: accelerators, spectrometers, detectors and associated equipment (0168-9002) 619 (2010), 1/3; 18-20

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Nuclear excitation; annihilation; spin orientation

Sažetak
In this paper polarization effects in the nuclear excitation by positron–electron annihilation (NEPEA) process are considered. We calculated cross-sections for the NEPEA with wave functions of bound electron and incoming positron in point nuclear Coulomb field. The results are compared to predictions which are derived using Born approximation. Results for the annihilation on the K-electron are presented. We found that cross-section for magnetic transition is much more pronounced for orientation of electron spin in positron direction. For electric transition cross-sections with parallel spin orientation are larger than for antiparallel, at least for small positron energy.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
316-0000000-3192 - Analiza složenih sustava spektroskopskim metodama (Nada Orlić, )

Ustanove
Medicinski fakultet, Rijeka,
Klinički bolnički centar Rijeka,
Sveučilište u Rijeci - Odjel za fiziku

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Citati