Electromagnetic mass differences of nucleons and Δ-baryons in the skyrme model

Ebrahim, A.
Savcı, Mustafa
The numerical values predicted for the electromagnetic mass differences of nucleons and Δ-baryons in the Skyrme model are obtained and inaccuracies in previously reported values are pointed out.


Effective Mass Dirac-Morse Problem with any kappa-value
Arda, Altug; Sever, Ramazan; TEZCAN, CEVDET; Akcay, Hueseyin (IOP Publishing, 2010-04-01)
The Dirac-Morse problem is investigated within the framework of an approximation to the term proportional to 1/r(2) in the view of the position-dependent mass formalism. The energy eigenvalues and corresponding wave functions are obtained by using the parametric generalization of the Nikiforov-Uvarov method for any kappa-value. We also study the approximate energy eigenvalues, and the corresponding wave functions in the case of the constant-mass for pseudospin, and spin cases, respectively.
Experimental Insights into the Nanostructure of the Cores of Topological Defects in Liquid Crystals
Wang, Xiaoguang; Kim, Young-Ki; Büküşoğlu, Emre; Zhang, Bo; Miller, Daniel S; Abbott, Nicholas L (American Physical Society (APS), 2016-04-04)
The nanoscopic structure of the cores of topological defects in anisotropic condensed matter is an unresolved issue, although a number of theoretical predictions have been reported. In the experimental study reported in this Letter, we template the assembly of amphiphilic molecules from the cores of defects in liquid crystals and thereby provide the first experimental evidence that the cores of singular defects that appear optically to be points (with strength m = +1) are nanometer-sized closed-loop, discli...
Singularities of spectra of infrared reflection of tertiary compounds of the type T1BX2
Hasanlı, Nızamı; Khomutova, M.D.; Sardarly, R.M.; Tagorov, V.I. (Springer Science and Business Media LLC, 1977-07-01)
The frequencies of lattice vibrations are calculated for compounds of the type T1BX2 on the basis of the linear-chain model. The calculated frequencies are compared with experimental values for TlGaS2 and TlGaSe2. The good agreement between the calculated and experimental frequencies serves as proof of the applicability of the linear-chain model to compounds of the T1BX2 type. The proposed method of calculation of frequencies makes it possible to predict the theoretical frequencies of lattice vibrations of ...
Antiproton Flux, Antiproton-to-Proton Flux Ratio, and Properties of Elementary Particle Fluxes in Primary Cosmic Rays Measured with the Alpha Magnetic Spectrometer on the International Space Station
Aguilar, M.; et. al. (American Physical Society (APS), 2016-08-26)
A precision measurement by AMS of the antiproton flux and the antiproton-to-proton flux ratio in primary cosmic rays in the absolute rigidity range from 1 to 450 GV is presented based on 3.49 x 10(5) antiproton events and 2.42 x 10(9) proton events. The fluxes and flux ratios of charged elementary particles in cosmic rays are also presented. In the absolute rigidity range similar to 60 to similar to 500 GV, the antiproton (p) over bar, proton p, and positron e(+) fluxes are found to have nearly identical ri...
Energy distribution of the universe in the Bianchi type II cosmological models
Aydogdu, O (Wiley, 2006-04-01)
Using the energy-momentum complexes of Tolman, Papapetrou and Weinberg, the total energy of the universe in Locally Rotationally Symmetric (LRS) Bianchi type II models is calculated. The total energy is found to be zero due to the matter plus field. This result supports the viewpoint of Tryon, Rosen and Albrow. (c) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Citation Formats
A. Ebrahim and M. Savcı, “Electromagnetic mass differences of nucleons and Δ-baryons in the skyrme model,” PHYSICS LETTERS B, pp. 6–9, 1989, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46579.