dorsal/arxiv
View SchemaStaggering effects in nuclear and molecular spectra
| Authors | D. Bonatsos, N. Karoussos, C. Daskaloyannis, S. B. Drenska, N. Minkov, P. P. Raychev, R. P. Roussev, J. Maruani |
|---|---|
| Categories | |
| ArXiv ID | physics/0106015 |
| URL | https://arxiv.org/abs/physics/0106015 |
| Journal | Prog. Theor. Chem. Phys. 6 : New Trends in Quantum Systems in Chemistry and Physics, ed. J. Maruani, C. Minot, R. McWeeny, Y. G. Smeyers, and S. Wilson, Vol. I (Kluwer, Dordrecht, 2001) p. 393. |
Abstract
It is shown that the recently observed Delta J = 2 staggering effect (i.e. the relative displacement of the levels with angular momenta J, J+4, J+8, ..., relatively to the levels with angular momenta J+2, J+6, J+10, ...) seen in superdeformed nuclear bands is also occurring in certain electronically excited rotational bands of diatomic molecules (YD, CrD, CrH, CoH), in which it is attributed to interband interactions (bandcrossings). In addition, the Delta J = 1 staggering effect (i.e. the relative displacement of the levels with even angular momentum J with respect to the levels of the same band with odd J) is studied in molecular bands free from Delta J = 2 staggering (i.e. free from interband interactions/bandcrossings). Bands of YD offer evidence for the absence of any Delta J = 1 staggering effect due to the disparity of nuclear masses, while bands of sextet electronic states of CrD demonstrate that Delta J = 1 staggering is a sensitive probe of deviations from rotational behaviour, due in this particular case to the spin-rotation and spin-spin interactions.
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"abstract": "It is shown that the recently observed Delta J = 2 staggering effect (i.e.\nthe relative displacement of the levels with angular momenta J, J+4, J+8, ...,\nrelatively to the levels with angular momenta J+2, J+6, J+10, ...) seen in\nsuperdeformed nuclear bands is also occurring in certain electronically excited\nrotational bands of diatomic molecules (YD, CrD, CrH, CoH), in which it is\nattributed to interband interactions (bandcrossings). In addition, the Delta J\n= 1 staggering effect (i.e. the relative displacement of the levels with even\nangular momentum J with respect to the levels of the same band with odd J) is\nstudied in molecular bands free from Delta J = 2 staggering (i.e. free from\ninterband interactions/bandcrossings). Bands of YD offer evidence for the\nabsence of any Delta J = 1 staggering effect due to the disparity of nuclear\nmasses, while bands of sextet electronic states of CrD demonstrate that Delta J\n= 1 staggering is a sensitive probe of deviations from rotational behaviour,\ndue in this particular case to the spin-rotation and spin-spin interactions.",
"arxiv_id": "physics/0106015",
"authors": [
"D. Bonatsos",
"N. Karoussos",
"C. Daskaloyannis",
"S. B. Drenska",
"N. Minkov",
"P. P. Raychev",
"R. P. Roussev",
"J. Maruani"
],
"categories": [
"physics.chem-ph",
"nucl-ex",
"nucl-th"
],
"journal_ref": "Prog. Theor. Chem. Phys. 6 : New Trends in Quantum Systems in\n Chemistry and Physics, ed. J. Maruani, C. Minot, R. McWeeny, Y. G. Smeyers,\n and S. Wilson, Vol. I (Kluwer, Dordrecht, 2001) p. 393.",
"title": "Staggering effects in nuclear and molecular spectra",
"url": "https://arxiv.org/abs/physics/0106015"
},
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