Search results for "QB"
showing 10 items of 522 documents
Quark structure of the $$\chi _{\mathrm{c}}(3P)$$ χc(3P) and X(4274) resonances and their strong and radiative decays
2020
We calculate the masses of $$\chi _{\mathrm{c}}(3P)$$ χc(3P) states with threshold corrections in a coupled-channel model. The model was recently applied to the description of the properties of $$\chi _{\mathrm{c}}(2P)$$ χc(2P) and $$\chi _{\mathrm{b}}(3P)$$ χb(3P) multiplets (Ferretti and Santopinto in Phys Lett B 789:550, 2019]. We also compute the open-charm strong decay widths of the $$\chi _{\mathrm{c}}(3P)$$ χc(3P) states and their radiative transitions. According to our predictions, the $$\chi _{\mathrm{c}}(3P)$$ χc(3P) states should be dominated by the charmonium core, but they may also show small meson-meson components. The X(4274) is interpreted as a $$c {{\bar{c}}}$$ cc¯ $$\chi _…
Gender Diversity in STEM Disciplines: A Multiple Factor Problem.
2019
La falta de diversidad, y específicamente de diversidad de género, es uno de los problemas clave que se están encontrando tanto las empresas del sector tecnológico como las instituciones del ámbito académico en la educación superior. Según la UNESCO, las mujeres representan el 35% de todos los matriculados en las ramas de Ciencia, Tecnología, Ingeniería y Matemáticas (STEM, en sus siglas en inglés), encontrándose el mínimo, un 3%, en el área de las Tecnologías de la Información y las Comunicaciones (TIC). Al mismo tiempo, el número de mujeres profesionales que abandonan trabajos de perfil tecnológico es inaceptablemente alto. Como miembros de una institución de educación superior centrada e…
Social Influence Maximization in Hypergraphs
2021
This work deals with a generalization of the minimum Target Set Selection (TSS) problem, a key algorithmic question in information diffusion research due to its potential commercial value. Firstly proposed by Kempe et al., the TSS problem is based on a linear threshold diffusion model defined on an input graph with node thresholds, quantifying the hardness to influence each node. The goal is to find the smaller set of items that can influence the whole network according to the diffusion model defined. This study generalizes the TSS problem on networks characterized by many-to-many relationships modeled via hypergraphs. Specifically, we introduce a linear threshold diffusion process on such …
"Table 13" of "Measurement of ttbar production with a veto on additional central jet activity in pp collisions at sqrt(s) = 7 TeV using the ATLAS det…
2012
The correlation matrix (statistical) for the gap fraction measurement at different values of Qsum for the absolute rapditiy interval < 0.8.
"Table 14" of "Measurement of ttbar production with a veto on additional central jet activity in pp collisions at sqrt(s) = 7 TeV using the ATLAS det…
2012
The correlation matrix (statistical) for the gap fraction measurement at different values of Qsum for the absolute rapditiy interval 0.8 TO 1.5.
"Table 10" of "Measurement of ttbar production with a veto on additional central jet activity in pp collisions at sqrt(s) = 7 TeV using the ATLAS det…
2012
The correlation matrix (statistical) for the gap fraction measurement at different values of Q0 for the absolute rapditiy interval 0.8 TO 1.5.
"Table 15" of "Measurement of ttbar production with a veto on additional central jet activity in pp collisions at sqrt(s) = 7 TeV using the ATLAS det…
2012
The correlation matrix (statistical) for the gap fraction measurement at different values of Qsum for the absolute rapditiy interval 1.5 TO 2.1.
"Table 12" of "Measurement of ttbar production with a veto on additional central jet activity in pp collisions at sqrt(s) = 7 TeV using the ATLAS det…
2012
The correlation matrix (statistical) for the gap fraction measurement at different values of Q0 for the absolute rapditiy interval < 2.1.
"Table 9" of "Measurement of ttbar production with a veto on additional central jet activity in pp collisions at sqrt(s) = 7 TeV using the ATLAS dete…
2012
The correlation matrix (statistical) for the gap fraction measurement at different values of Q0 for the absolute rapditiy interval < 0.8.
"Table 11" of "Measurement of ttbar production with a veto on additional central jet activity in pp collisions at sqrt(s) = 7 TeV using the ATLAS det…
2012
The correlation matrix (statistical) for the gap fraction measurement at different values of Q0 for the absolute rapditiy interval 1.5 TO 2.1.