Development of the recoil-beta tagging method and recoil-beta tagging studies of ⁶⁶As and ⁶⁶Se
The structure of self-conjugate odd-odd N = Z nucleus 66As has been experimentally
studied in detail. Prompt and isomeric excited states have been
observed utilising recoil-β tagging and recoil-isomer tagging methods. Most importantly,
candidates for the excited states in the T = 1 band were identified up
to spin Jπ = 6+. Three new detectors i.e., a charged-particle veto detector, a
highly-pixelated DSSD and a phosphor sandwich device have been constructed
and tested to enhance the sensitivity of the recoil-β tagging approach. The
newly developed charged-particle veto detector in conjunction with the recoil-β
tagging allowed excited states in the exotic neutron-deficient N = Z − 2 nucleus
66Se to be identified up to spin Jπ = 6+. The newly obtained spectroscopic
results both in 66As and 66Se permitted the derivation of energy differences
between isobaric analogue states in the full A = 66 triplet. These results show
that both the charge-symmetry and charge-independence characteristics of the
strong nucleon-nucleon interaction are violated. Moreover, the experimental
energy differences are larger than predicted by the shell-model calculations.
This points towards a need for an additional isospin non-conserving interaction,
whose fundamental origin cannot be explained on the basis of existing
nuclear models.
...
ISBN
978-951-39-5417-8ISSN Hae Julkaisufoorumista
0075-465XJulkaisuun sisältyy osajulkaisuja
- Artikkeli I: Ruotsalainen, P., Scholey, C., Julin, R., Hauschild, K., Kaneko, K., Singh, B. N., Wadsworth, R., Jenkins, D., Brock, T., Greenlees, P., Henderson, J., Jakobsson, U., Jones, P., Juutinen, S., Ketelhut, S., Leino, M., Lumley, N., Mason, P., Nieminen, P., . . . Uusitalo, J. (2013). Recoil-beta tagging study of the N=Z nucleus 66As. Physical Review C, 88(2), Article 024320. DOI: 10.1103/PhysRevC.88.024320
- Artikkeli II: Ruotsalainen, P., Jenkins, D., Bentley, M., Wadsworth, R., Scholey, C., Auranen, K., Davies, P., Grahn, T., Greenlees, P., Henderson, J., Herzan, A., Jakobsson, U., Joshi, P., Julin, R., Juutinen, S., Konki, J., Leino, M., Lotay, G., Nichols, A., . . . Uusitalo, J. (2013). Spectroscopy of proton-rich 66Se up to$ J = 6^+$: Isospin-breaking effect in the A = 66 isobaric triplet. Physical Review C, 88, Article 041308R. DOI: 10.1103/PhysRevC.88.041308. JYX: jyx.jyu.fi/handle/123456789/48635
- Artikkeli III: Henderson, J., Ruotsalainen, P., Jenkins, D., Scholey, C., Auranen, K., Davies, P., Grahn, T., Greenlees, P., Henry, T., Herzá?, A., Jakobsson, U., Joshi, P., Julin, R., Juutinen, S., Konki, J., Leino, M., Lotay, G., Nichols, A., Obertelli, A., . . . Wadsworth, R. (2013). Enhancing the sensitivity of recoil-beta tagging. Journal of Instrumentation, 8(4), Article P04025. DOI: 10.1088/1748-0221/8/04/P04025
Metadata
Näytä kaikki kuvailutiedotKokoelmat
- Väitöskirjat [3436]
Samankaltainen aineisto
Näytetään aineistoja, joilla on samankaltainen nimeke tai asiasanat.
-
Developing and comparing methods for mapping habitat types and conservation values using remote sensing data and GIS methods
Räsänen, Aleksi (University of Jyväskylä, 2014) -
The ion-optical design of the MARA recoil separator and absolute transmission measurements of the RITU gas-filled recoil separator
Sarén, Jan (University of Jyväskylä, 2011)In this thesis work, the use of two complementary recoil separators for studies of nuclear structure via fusion-evaporation reactions are discussed. The design and the main ion-optical properties of the vacuum-mode ... -
Interactive multimedia web in developing career counselling methods
Carling, Eva (2009)Career Counselling Web is an EU Leonardo project, built on a guidance and counselling web-site developed by Careers Wales with thousands of registered users. Careers Wales in Gwent is acting as advisor and is taking part ... -
Utilizing agile methods in continuous software development
Kiiski, Miko (2022)Ohjelmat ja järjestelmät ovat osa kaikkien päivittäistä elämää. Teknologiat muuttuvat kiihtyvällä tahdilla, uusia innovaatioita syntyy ja toimintatavat voivat muuttua yhdessä yössä maailman tilanteen mukaan. Ihmisten ja ... -
User-centered development and maintenance method for software teams
Laitila, Tero (2017)Tämä tutkimus pyrkii löytämään sopivan metodin jatkuvaan ohjelmistokehitykseen (tuotekehitys ja ylläpito). Se yhdistää ketterän ohjelmistokehitysmenetelmän uusimpiin operatiivisiin metodeihin sekä käyttäjäläheiseen ...
Ellei toisin mainittu, julkisesti saatavilla olevia JYX-metatietoja (poislukien tiivistelmät) saa vapaasti uudelleenkäyttää CC0-lisenssillä.