Electric dipole and magnetic quadrupole moments of the WW boson via a CP-violating HWWHWW vertex in effective Lagrangians

The possibility of nonnegligible $W$ electric dipole ($\widetilde{\mu}_W$) and magnetic quadrupole ($\widetilde{Q}_W$) moments induced by the most general $HWW$ vertex is examined via the effective Lagrangian technique. It is assumed that new heavy fermions induce an anomalous CP-odd component of the $HWW$ vertex, which can be parametrized by an $SU_L(2)\times U_Y(1)$-invariant dimension-six operator. This anomalous contribution, when combined with the standard model CP-even contribution, lead to CP-odd electromagnetic properties of the $W$ boson, which are characterized by the form factors $\Delta \widetilde{\kappa}$ and $\Delta \widetilde{Q}$. It is found that $\Delta \widetilde{\kappa}$ is divergent, whereas $\Delta \widetilde{Q}$ is finite, which reflects the fact that the latter cannot be generated at the one-loop level in any renormalizable theory. Assuming reasonable values for the unknown parameters, we found that $\widetilde{\mu}_W\sim 3-6\times 10^{-21}$ e-cm, which is eight orders of magnitude larger than the SM prediction and close to the upper bound derived from the neutron electric dipole moment. The estimated size of the somewhat less-studied $\widetilde{Q}_W$ moment is of the order of $-10^{-36}$ e-cm^2, which is fifteen orders of magnitude above the SM contribution.Comment: 7 pages, 6 figures, REVTEX styl

CP-odd static electromagnetic properties of the W gauge boson and the t quark via the anomalous tbW coupling

In the framework of the electroweak chiral Lagrangian, the one-loop induced effects of the anomalous $tbW$ coupling, which includes both left- and right-handed complex components, on the static electromagnetic properties of the $W$ boson and the $t$ quark are studied. The attention is focused mainly on the CP-violating electromagnetic properties. It is found that the $tbW$ anomalous coupling can induce both CP-violating moments of the $W$ boson, namely, its electric dipole ($\tilde{\mu}_W$) and magnetic quadrupole ($\tilde{Q}_W$) moments. As far as the $t$ quark is concerned, a potentially large electric dipole moment $(d_t)$ can arise due to the anomalous $tbW$ coupling. The most recent bounds on the left- and right-handed parameters from $B$ meson physics lead to the following estimates $\tilde{\mu}_W ~ 10^{-23}-10^{-22}$ e-cm and $\tilde{Q}_W~ 10^{-38}-10^{-37}$ e-cm$^2$, which are 7 and 14 orders of magnitude larger than the standard model (SM) predictions, whereas $d_t$ may be as large as $10^{-22}$ e-cm, which is about 8 orders of magnitude larger than its SM counterpart.Comment: This paper has been merged with hep-ph/0612171 for publication in Physical Review

Оптимизация нормальных режимов линий электропередачи

In order to optimize normal regimes of the power transmission lines notions of economic, maximum and the largest efficiency of a transmission line are used. Power losses by wire corona transmission losses are considered.Для оптимизации нормальных режимов используются понятия экономического, максимального и наибольшего коэффициентов полезного действия линии передачи. Учтены по­тери мощности на коронирование проводов

Test of the ATLAS pion calibration scheme in the ATLAS combined test beam

Pion energy reconstruction is studied using the data collected during the 2004 ATLAS combined test beam. The strategy to extract corrections for the non-compensating nature of the ATLAS calorimeters for dead material losses and for leakage effects is discussed and assessed. The default ATLAS strategy based on a weighting technique of the energy deposits in calorimeter cells is presented and compared to a novel technique exploiting correlations among energy deposited in calorimeter layers.Comment: 8 pages, 6 figures, to appear in the Proceedings of the XIII International Conference on Calorimetry in High Energy Physics (CALOR08), May 2008, Pavia, Italy - Journal of Physics: Conference Serie

О целесообразной степени уменьшения индуктивного сопротивления электропередачи

The paper considers dependences of transmitted system power limits on the compensation rate of a power line reactive impedance. Peculiar features of these dependences are revealed in the paper.Рассмотрены зависимости предела передаваемой мощности системы передачи от степени компенсации реактивного сопротивления ЛЭП, Выявлены особенности этих зависимостей

Основные принципы компенсации параметров линий электропередачи в электрических сетях энергосистем

The paper contains systemization of principles and methods for parameter compensation of power lines in power system networks.Дается систематизация принципов и способов компенсации параметров линий электропередачи в электрических сетях энергосистем.

О параметрах компенсаторов реактивной мощности в электропередачах переменного тока

The paper considers selection methods of reactive power compensator parameters of for alternating current transmissions by different conditions. Calculated relationships and graphic dependences are obtained.Рассмотрены методы выбора параметров компенсаторов реактивной мощности в электропередачах переменного тока по различным условиям. Получены расчетные соотношения и графические зависимости

Об эффективности компенсации параметров ЛЭП и повышении их управляемости

The paper considers efficiency pertaining to parameter compensation of electric power line, higher efficiency of longitudinal compensation owing to controlled shunt reactors. Рассмотрены эффективность компенсации параметров ЛЭП, а также повышение эффективности продольной компенсации за счет управляемых шунтирующих реакторов

Особенности работы четвертьволновой электропередачи в электрической системе

The paper contains an analysis of the operational conditions of a quarter-wave power supply in an electric system. Its applicability for the operation in electric mains and electric power transportation is shown in the paper. Проведен анализ условий работы четвертьволновой электропередачи в электрической системе. Показана ее применяемость для работы в электрических сетях и для транспорта электроэнергии