Korea Institute of Science and Technology Information

About: Korea Institute of Science and Technology Information is a facility organization based out in Daejeon, South Korea. It is known for research contribution in the topics: Gravitational wave & LIGO. The organization has 1152 authors who have published 2319 publications receiving 93849 citations. The organization is also known as: Korea Institute of Science and Technology Information & KISTI.

Erratum: The Belle II Physics Book (Progress of Theoretical and Experimental Physics (2019) 2019 (123C01) DOI: 10.1093/ptep/ptz106)

Abstract: In the original version of this manuscript, an error was introduced on pp352. '2.7nb:1.6nb' has been corrected to '2.4nb:1.3nb' in the current online and printed version. doi:10.1093/ptep/ptz106.

Transverse momentum spectra and nuclear modification factors of charged particles in pp, p-Pb and Pb-Pb collisions at the LHC

Abstract: We report the measured transverse momentum (p$_{T}$) spectra of primary charged particles from pp, p-Pb and Pb-Pb collisions at a center-of-mass energy $ \sqrt{s_{\mathrm{NN}}}=5.02 $ TeV in the kinematic range of 0.15 < p$_{T}$< 50 GeV/c and |η| < 0.8. A significant improvement of systematic uncertainties motivated the reanalysis of data in pp and Pb-Pb collisions at $ \sqrt{s_{\mathrm{NN}}}=2.76 $ TeV, as well as in p-Pb collisions at $ \sqrt{s_{\mathrm{NN}}}=5.02 $ TeV, which is also presented. Spectra from Pb-Pb collisions are presented in nine centrality intervals and are compared to a reference spectrum from pp collisions scaled by the number of binary nucleon-nucleon collisions. For central collisions, the p$_{T}$ spectra are suppressed by more than a factor of 7 around 6–7 GeV/c with a significant reduction in suppression towards higher momenta up to 30 GeV/c. The nuclear modification factor R$_{pPb}$, constructed from the pp and p-Pb spectra measured at the same collision energy, is consistent with unity above 8 GeV/c. While the spectra in both pp and Pb-Pb collisions are substantially harder at $ \sqrt{s_{\mathrm{NN}}}=5.02 $ TeV compared to 2.76 TeV, the nuclear modification factors show no significant collision energy dependence. The obtained results should provide further constraints on the parton energy loss calculations to determine the transport properties of the hot and dense QCD matter.

Correlated event-by-event Fluctuations of Flow Harmonics in Pb-Pb collisions at √sNN =2.76 TeV

Abstract: We report the measurements of correlations between event-by-event fluctuations of amplitudes of anisotropic flow harmonics in nucleus-nucleus collisions, obtained for the first time using a new analysis method based on multiparticle cumulants in mixed harmonics. This novel method is robust against systematic biases originating from non-flow effects and by construction any dependence on symmetry planes is eliminated. We demonstrate that correlations of flow harmonics exhibit a better sensitivity to medium properties than the individual flow harmonics. The new measurements are performed in Pb-Pb collisions at the centre-of-mass energy per nucleon pair of $\sqrt{s_{_{\rm NN}}}=2.76$ TeV by the ALICE experiment at the Large Hadron Collider (LHC). The centrality dependence of correlation between event-by-event fluctuations of the elliptic, $v_2$, and quadrangular, $v_4$, flow harmonics, as well as of anti-correlation between $v_2$ and triangular, $v_3$, flow harmonics are presented. The results cover two different regimes of the initial state configurations: geometry-dominated (in mid-central collisions) and fluctuation-dominated (in the most central collisions). Comparisons are made to predictions from MC-Glauber, viscous hydrodynamics, AMPT and HIJING models. Together with the existing measurements of individual flow harmonics the presented results provide further constraints on initial conditions and the transport properties of the system produced in heavy-ion collisions.

Entrepreneurial cyclical dynamics of open innovation

Abstract: This study addresses the following matters: What is the structure and mechanism of modern capital economic dynamics that motivates the growth limits of capitalism? The modern economy can be modeled as Entrepreneurial Cyclical Dynamics of Open Innovation with three sub-economies such as market open innovation by SMEs and start-ups, closed open innovation by big business, and social open innovation. When there is low balance among the three sub-economies, which is to say, if any of the sub-economies is too big, or too small, the economy dynamics decreases, and the economic growth rate slows down to nearly zero or even negative according to the model simulation. South Korea, with a low internal reserve policy, is in this situation. When there is medium balance among three sub-economies, which is to say, any of the sub-economies is big enough to lead the total economy but is not sufficiently big to control totally the other two economies, the economy dynamics increases and the economic growth rate will be maintained at a high level according to the model simulation. India, with its grassroots innovation festival, demonstrates this situation. When there is a high balance among the three sub-economies, which is to say, the three sub-economies are well balanced and there is no change in the economic system, the economy dynamics become too low and the economic growth rate stays at a low level according to the model simulation. Japan’s Hitachi is moving from this situation to a medium balance.