Search results for "MBD"
showing 6 items of 646 documents
Testing the nature of the Λ(1520)-resonance in proton-induced production
2006
The $\Lambda(1520)$ resonance has been recently studied in a unitarized coupled channel formalism with $\pi\Sigma(1385)$, $K\Xi(1530)$, $\bar{K}N$ and $\pi\Sigma$ as constituents blocks. We provide a theoretical study of the predictions of this model in physical observables of the $pp\to pK^+K^-p$ and $pp\to pK^+\pi^0\pi^0\Lambda$ reactions. In particular, we show that the ratio between the $\pi^0\pi^0\Lambda$ and $K^-p$ mass distributions can provide valuable information on the ratio of the couplings of the $\Lambda(1520)$ resonance to $\pi\Sigma(1385)$ and $\bar{K}N$ that the theory predicts. Calculations are done for energies which are accessible in an experimental facility like COSY at …
"Table 1" of "Charm-quark fragmentation fractions and production cross section at midrapidity in pp collisions at the LHC"
2022
Ratio of prompt open-charm hadrons H$_\mathrm{c}$ and inclusive $\mathrm{J}/\psi$ mesons over D$^0$-meson production cross section in pp collisions at $\sqrt{s} = 5.02$ TeV.
Insight into particle production mechanisms via angular correlations of identified particles in pp collisions at √s = 7 TeV
2017
Two-particle angular correlations were measured in pp collisions at s√=7 TeV for pions, kaons, protons, and lambdas, for all particle/anti-particle combinations in the pair. Data for mesons exhibit an expected peak dominated by effects associated with mini-jets and are well reproduced by general purpose Monte Carlo generators. However, for baryon–baryon and anti-baryon–anti-baryon pairs, where both particles have the same baryon number, a near-side anti-correlation structure is observed instead of a peak. This effect is interpreted in the context of baryon production mechanisms in the fragmentation process. It currently presents a challenge to Monte Carlo models and its origin remains an op…
Role of the N-*(1535) in the J/psi -> pp and J/psi -> p(+)Lambda reactions
2009
We study the J/psi -> p eta p and J/psi -> pK(+)Lambda reactions with a unitary chiral approach. We find that the unitary chiral approach, which generates the N-*(1535) dynamically, can describe the data reasonably well, particularly the ratio of the integrated cross sections. This study provides further support for the unitary chiral description of the N-*(1535). We also discuss some subtle differences between the coupling constants determined from the unitary chiral approach and those determined from phenomenological studies
Adaptació del coeficient de GINI per a la formulació d'un coeficient de desigualtat lingüística
2020
El text adapta el Coeficient de Gini per elaborar un Coeficient de Desigualtat Lingüística (CDL) i aplicar-lo al cas valencià, tenint en compte les Taxes de Competència i les Taxes d?Ús. Es desenvolupen dos models, un basat en corbes parabòliques i un altre basat en corbes exponencials per al cas de disposar d?una parella de dades (x,y). Es calculen els Coeficients de Desigualtat Lingüística en ambdós casos per a les regions sociolingüístiques valencianes. Finalment es compara el resultat amb una corba general per al cas valencià
Análisis de la problemática del pie diabético en la Comunidad Valenciana (2009-2013)
2016
Introducción: Las úlceras son la principal causa de hospitalización en el paciente diabético y motivo de complicaciones, como la amputación de miembro inferior. Objetivos: Conocer y analizar los ingresos de pacientes diabéticos con úlcera en el pie en los hospitales públicos de la Comunidad Valenciana durante el periodo 2009-2013, según bases de datos hospitalarios. Calcular las estancias, tasas y costes de dichos ingresos. Determinar la relación entre ingresos y el registro de podólogos ejercientes colegiados. Conocer la formación, prevención y recursos materiales que existen en los centros de atención primaria de la ciudad de Valencia en relación con la úlcera de pie diabético. Material y…