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Showing 1 to 7 of 7 for “"negative parity"”.
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Octupole degrees of freedom in Uranium-230
… to possibly have tetrahedral shape because their negative-parity bands lacked in-band E2 transitions. From a study about the implications of tetrahedral shapein230U and232U [7], it was discovered that these bands were better described as octupole vibrations.This was concluded from the observation …
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Physics of low and intermediate spin states of atomic nuclei in the mass A ~ 160 region
… deformation could explain observed low-lying, negative parity bands characterized by a lack of in-band electromagnetic transitions. For this work, experimental data has been collected specifically to quantify the intensities of the "missing" in-band transitions for several nuclei in the mass …
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Size is everything : universal features of quasar microlensing with extended sources
… [kappa] = 0.4 and shear [gamma] = 0 (positive parity), and the other with [kappa]=[gamma]= 0.6 (negative parity). By looking at magnification histograms of the convolutions and using chi-squared tests to determine the number of observations that would be necessary to distinguish histograms …
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Spektroskopie im superdeformierten Minimum von 240 Pu
… the observation of the predominant population of negative parity states (98 %) in the second minimum, most likely attributed to a filtering action of the inner and outer fission barrier. Finally the measured rotational bands give hints on the behaviour of the moments of inertia of superdeformed …
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A variational approach to hadron structure in lattice QCD
… form factors of the two lowest-lying negative parity nucleons, where such techniques are required to disentangle the contributions of these two near degenerate states. Here we present the first evaluation of the elastic form factors Gᴇ and Gм for both these low-lying states. Finally, …
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Exploring the spectroscopy of vibrational levels in the 160 mass region
… the yrast aligned S-band. Finally, an odd spin negative parity sequence, namely band 9, has been identified as a candidate of the K = 1- octupole excitation. [Please note: the full text of the thesis is deferred until January 2018]
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A Study of the Λ(1405) in Lattice QCD
The lowest-lying odd-parity state of the Λ baryon lies surprisingly low in mass. Even though it contains a heavier valence strange quark and has odd parity, with an energy of 1405 MeV it lies lower than any other excited spin-1/2 baryon. In the almost 50 years since its discovery there has been …