Abstract Fixed-energy quantum inversion method is applied to determine model independent $$\alpha $$ α -particle scattering potentials within the energy range between 0 and 50 MeV. Only experimentally allowed even phase shifts are used in calculation. Detailed results exhibited at low higher energies show up ...

In this paper, we introduce a new quantum divergence$$\Phi (X,Y) = \Tr \left[\left(\dfrac{1-\alpha}{\alpha}+ \dfrac{\alpha}{1-\alpha}\right)X+2Y - \dfrac{X^{1 -\alpha}Y^{\alpha}}{\alpha}- \dfrac{X^{\alpha}Y^{1-\alpha}}{1-\alpha} \right],$$where $0< \alpha <1$.We study the least square problem with respect to divergence. We also show that divergence satisfies Data Processing Inequa...

Background: This study consists of two parts. The first part deals with both qualitative and quantitative analysis of 226Ra using alpha spectrometry measurement method. In the second part, the percentage of radioactive equilibrium between 226 Ra and its daughter products were determined by alpha spectrometry and total alpha measurement system after elapsed time of 15 days from precipitation. Ma...

We test whether the alpha of an investment relative to one’s existing portfolio can be used to improve out-of-sample performance (Sharpe ratio; Four-factor alpha). For the period 20002014, we confirm this for the Vanguard S&P 500 Index Fund and the Growth and Small Index Fund, which we extend by adding various Exchange Traded Funds. If one considers that our baseline funds may be proxies of the...