J/ψJ/\psi Pair Hadroproduction at Next-to-Leading Order in Nonrelativistic-QCD at CMS

We perform a complete study on the $J/\psi$ pair hadroproduction at next-to-leading order (NLO) in the nonrelativstic-QCD (NRQCD) framework with the pair of $c\bar{c}$ either in ${}^{3}S_1^{[1]}$ or ${}^{1}S_0^{[8]}$ fock state. It is found that the ${}^{1}S_0^{[8]}$ channel contribution at NLO is essential. Our results indicate that for the CMS, the NRQCD predictions can not describe the experimental data at all, and the total cross section predicted by NRQCD is smaller than the experimental data by an order of magnitude. So new mechanisms are needed to understand the CMS data for $J/\psi$ pair production.Comment: 4 pages,4 figure

On Liberation Nature of Technology From the Perspective of Social Ecological Civilization

Ecological civilization, which reflects the development stage and its state of social progress, is a sublation of aggressive growth model in modern industrial civilization. It is also a discard of extensive technology view that for limitless growth of wealth by abuse of science and technology. To some extent, technologies which represent the essential power of humankind, are born with the nature of liberation for man and its society. Specifically, we can never forget the liberation function of technology. While the nature of modern civilization is for the limitless liberation of human’s ego consciousness and desires by technologies, the nature of contemporary civilization is for the liberation and free of everyone and the whole society by technologies, eliminating the one dimensional society, one dimensional man, and one dimensional thought. In the background of establishing a harmony society, this paper tries to analyze the liberation nature of technology from the perspective of social ecological civilization in three dimensions. The first is the technology liberation in the context of reality, including the tendency of globalization and knowledge economy, the urgent need of green technology and the concrete practice of ecological restoration. The second is the development model of technology liberation in the context of theories, including the technology wildness phase of human ignorance in ancients, the technology civilization phase of dynamic increase of technologies as well as human confidence in modern times, and the eco-scientific phase of harmonious symbiosis in human and nature. And then the development of technology heads for the ultimate dimension of human and natural liberation. The third is a dialectic methodological enlightenment for contemporary technical practice based on the development venation of technology liberation

The First Cohomology of Lie Superalgebra P~(2)\tilde{P}(2) with Coefficients in Kac Modules

Over a field of characteristic p>2, firstly, the structure of Kac modules of Lie superalgebra $\tilde{P}(2)$ and the weight space decompositions are given. Secondly, the weight-derivations of $\tilde{P}(2)$ to its Kac modules are computed. Finally, the first cohomology of $\tilde{P}(2)$ with coefficients in Kac modules is determined