Electromagnetic interactions are incorporated into Heavy Hadron Chiral Perturbation Theory. Short and long distance magnetic moment contributions to the chiral Lagrangian are identified, and M1 radiative decays of heavy vector mesons and sextet baryons are studied. Using recent CLEO D branching fraction ratio data, we fit the meson coupling to the axial vector Goldstone current and find g 1 = 0...

Interplay between the vibronic and spin-orbit coupling in the ͑⌫ 8 + ⌫ 9 ͒ ϫ ͑g +2h͒ Jahn-Teller problem, where ⌫ 8 and ⌫ 9 are the quartet and sextet spin representation, and g and h denote the fourfold and fivefold degenerate vibrational modes in icosahedral symmetry, respectively, is studied. A 4d 9 or 5d 9 transition-metal ion in an icosahedral field may provide a realization of this system.

An explicit combinatorial expression is obtained for the Zhang-Zhang polynomial (also known as “Clar cover polynomial”) of a large class of pericondensed benzenoid systems, the multiple linear hexagonal chains Mn,m. By means of this result, various problems encountered in the Clar theory of Mn,m are also resolved: counting of Clar and Kekulé structures, determining the Clar number, and calculat...

Local environments of ferric and ferrous irons were systematically studied with M€ ossbauer (at liquid helium temperature) and ultraviolet–visible–near infrared spectroscopic methods for various 18Na2O–72SiO2 glasses doped with 0.5 mol% Fe2O3. These were prepared at temperatures of 1300–1600 C in ambient air or at 1500 C under reducing conditions with oxygen partial pressures from 12.3 to 0:27 ...

Using time-dependent density functional theory (TDDFT) calculations, we compare tunneling ionization of the a 4F ground state and the a 6D first excited state of vanadium in laser fields of intensities between 1.4 and 4.0 × 1013 W cm−2. The calculated ionization yields of the ground state of vanadium were already shown to agree well with experimental results [Chu and Groenenboom, Phys. Rev. A 9...

Lettuce is one of the most consumed leafy vegetables in Turkey. The production lettuce has been to get difficult due infestation cultivation areas with Bremia lactucae. This pathogen genetically very variable. Pathogenic variation B. lactucae not studied yet objective this study was monitore races two geographic regions During growing season May and October 2018, totally 72 diseased leaf sample...