We have built a CsI(Tl) γ-ray detector array for the NPDGamma experiment to search for a small parity-violating directional asymmetry in the angular distribution of 2.2 MeV γ-rays from the capture of polarized cold neutrons by protons with a sensitivity of several ppb. The weak pion-nucleon coupling constant can be determined from this asymmetry. The small size of the asymmetry requires a high ...

We use HST/ACS images and a photometric catalog of the COSMOS field to analyze morphologies of the host galaxies of ∼400 AGN candidates at redshifts 0.3 < z < 1.0. We compare the AGN hosts with a sample of non-active galaxies drawn from the COSMOS field to match the magnitude and redshift distribution of the AGN hosts. We perform 2-D surface brightness modeling with GALFIT to yield host galaxy ...

The effects of plan asymmetry on the earthquake response of one­ story systems are identified by comparing the dynamic response of an asymmetric­ plan system and the corresponding symmetric-plan system for a wide range of system parameters-uncoupled lateral vibration period, uncoupled torsional-to-lat­ eral frequency ratio, stiffness eccentricity, and yield factor. Elastic as weI! as in­ elasti...

Using improved theoretical calculations of the decay form factors in the Light Cone-QCD sum rule approach, we investigate the decay rates, dilepton invariant mass spectra and the forward-backward (FB) asymmetry in the decays B → (K, K *)ℓ + ℓ − (ℓ ± = e ± , µ ± , τ ±) in the standard model (SM) and a number of popular variants of the supersymmetric (SUSY) models. Theoretical precision on the di...

Using improved theoretical calculations of the decay form factors in the Light Cone-QCD sum rule approach, we investigate the decay rates, dilepton invariant mass spectra and the forward-backward (FB) asymmetry in the decays B ! (K;K )`` (` = e ; ; ) in the standard model (SM) and a number of popular variants of the supersymmetric (SUSY) models. Theoretical precision on the di erential decay ra...

The differential cross section and target asymmetry components of the reaction D(e, pp)eπ on polarized deuteron were measured. The kinetic energies of the protons were measured within 55-180 MeV and 46-265 MeV and the acceptance angles in lab. frame are Θ1,2 = 64 − 82, ∆φ1,2 = 32 . The sharp peak of the tensor a20-component of the target asymmetry is found near the invariant mass of the ppπsyst...

We investigate, using simultaneous rheology and confocal microscopy, the time-dependent stress response and transient single-particle dynamics following a step change in shear rate in binary colloidal glasses with large dynamical asymmetry and different mixing ratios. The transition from solid-like response to flow is characterised by a stress overshoot, whose magnitude is linked to transient s...

Chiral and C2-symmetric seven-membered cycloalkanones 2--6 bearing 1,2-diphenylethane-1,2-diamine and cyclohexane-1,2-diamine backbones were synthesized and evaluated their asymmetry inductive behaviours in an asymmetric epoxidation of stilbene with oxone. Although the reaction of the ketones 2 and 3 of a 1,2-diphenylethane-1,2-diamine backbone gave stilbene oxide in trace to 31% yield, those o...

in this study, the effect of audit quality on agency costs and information asymmetry has been examined. among the accepted companies 99 ones in tehran stock exchange were selected for statistical samples from 1385 to 1392 in order to attain the research purposes. to measure the audit quality, it has been used the observable variables such as the percentage of institutional investors, the type o...