نتایج جستجو برای: l model
تعداد نتایج: 2651627 فیلتر نتایج به سال:
T–violating effects in the B → K∗l+l− decay have been studied using the most general form of the effective Hamiltonian. T–odd momentum correlation is used as the physical observable. It is observed that this quantity is very sensitive to the new physics. We estimate the potential of discovery of this quantity at future hadron colliders. PACS numbers: 12.60.–i, 13.30.–a, 14.20.Mr e-mail: taliev@...
Rare b decay processes are analyzed in the multi-Higgs doublet model. Taking account of the constraint from the b → s γ process, the branching ratio and the forward-backward asymmetry of the final leptons for the b → s ll process are calculated. It is shown that the branching ratio can be a few times larger than the standard model prediction and the asymmetry can be significantly different from...
In ground-based astronomy, images of objects in outer space are acquired via ground-based telescopes. However, the imaging system is generally interfered by atmospheric turbulence, and hence images so acquired are blurred with unknown point-spread function (PSF). To restore the observed images, the wavefront of light at the telescope's aperture is utilized to derive the PSF. A model with the Ti...
A model–independent analysis for the exclusive, rare B → π+π−l+l− decay is presented. The dependence of the various physically measurable asymmetries and CP violating asymmetry on the new Wilson coefficients is studied in detail. It is observed that different measurable quantiles are very sensitive to the different new Wilson coefficients, i.e., to the existence of new physics beyond standard m...
ed from Tradeoff Model 1 r ff l ( ) 1 ⋅ T Tradeoff Model 2 r ff l ( ) 2 ⋅ T Tradeoff Model L r ff l ( ) L ⋅ T ... Select the 1 l L ∈ ... with the smallest ( ) ( ) * * 0 l − T y T y ... (b) Figure 3.3: Illustration of two procedures for making selection decisions using tradeoff models. Approach (a) involves an independent optimization problem for each tradeoff model; approach (b) requires only o...
In the framework of a QCD relativistic potential model we evaluate the form factors describing the exclusive decay B → ππlν. The calculation is performed in a phase space region far away from the resonances and therefore is complementary to other decay mechanisms where the pions are produced by intermediate particles, e.g. in the chiral approach. We give an estimate of the contribution of the n...
Introduction and Purpose: Discharge of the wastewater containing reactive dyes into water resources can have detrimental effects on the environment and to the human health due to their carcinogenic, mutagenic, and toxic nature. The present study was performed to evaluate the efficiency of rosewater waste in removal of reactive blue 19 dye from aqueous solutions. Methods: In this experimental st...
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