Navegação Ciências Exatas e da Terra por Título
Resultados 2647-2666 de 5964
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Investigating Fl (x, Q2) at fixed energy in the color dipole formalism
(2006) [Artigo de periódico]At small x, the structure function FL(x,Q2) is driven by the gluon content of the nucleon target and consequently it can unravel the underlying QCD dynamics in that region. In this work, one studies its behavior on the ... -
Investigating photoproduction of scalar mesons at medium energies
(2012) [Artigo de periódico]In this paper we study the photoproduction of scalar mesons in the intermediate energies, considering distinct mixing scenarios in the description of meson physical states. The differential and integrated total cross ... -
Investigating potential planetary nebula/cluster pairs
(2014) [Artigo de periódico]Context. Fundamental parameters characterizing the end-state of intermediate-mass stars may be constrained by discovering planetary nebulae (PNe) in open clusters (OCs). Cluster membership may be exploited to establish the ... -
Investigating the age and structure of the infrared old open clusters LK 1, LK 10, FSR 1521 and FSR 1555
(2009) [Artigo de periódico]The combination of several mass-decreasing processes may critically affect the structure of open clusters (OCs), to the point that most dissolve into the field in a time-scale shorter than ≈1 Gyr. Therefore, as is observed, ... -
Investigating the boderline between a young star cluster and a small stellar association : a test case with Bochum 1
(2008) [Artigo de periódico]Context. Usually, a loose stellar distribution can be classified as an OB stellar group, an association, or a young open cluster. We compare data with the typical OB association Vul OB1. Aims. Here, we discuss the nature ... -
Investigating the central diffractive f0(980) and f0(1270) meson production at the LHC
(2012) [Artigo de periódico]The central diffractive production of mesons f0ð980Þ and f2ð1270Þ at the energy of CERN-Large Hadron Collider experiment on proton-proton collisions is investigated. The processes initiated by quasireal photon-photon ... -
Investigating the diffractive gluon jet production in lepton-ion collisions
(2020) [Artigo de periódico]We study the diffractive jet production in electron-ion collisions in the kinematic region where the mass MX of the diffractive final state is larger than Q2. Based on parton saturation framework, predictions are done for ... -
Investigating the Drell-Yan transverse momentum distribution in the color dipole approach
(2003) [Artigo de periódico]We study the influence of unitarity corrections on the Drell-Yan transverse momentum distribution within the color dipole approach. These unitarity corrections are implemented through the multiple scattering Glauber- Mueller ... -
Investigating the inclusive transverse spectra in high-energy pp collisions in the context of geometric scaling framework
(2020) [Artigo de periódico]The presence of geometric scaling within the pT spectra of produced hadrons at high energy pp collisions using small-x kT-factorization is investigated. It is proposed a phenomenological parameterization for the unintegrated ... -
Investigating the QCD dynamical entropy in high-energy hadronic collisions
(2022) [Artigo de periódico]The dynamical entropy of dense gluonic states in proton-proton collisions at high energies is studied by using phenomenological models for the unintegrated gluon distribution. The corresponding transverse momentum probability ... -
Investigating the role of strangeness in baryon–antibaryon annihilation at the LHC
(2022) [Artigo de periódico]Annihilation dynamics plays a fundamental role in the baryon–antibaryon interaction (B–B) at lowenergy and its strength and range are crucial in the assessment of possible baryonic bound states. Experimental data on ... -
Investigating the soft processes within the QCD color dipole picture
(2019) [Artigo de periódico]We consider the QCD parton saturation models to describe the soft interactions at the high-energy limit. The total and elastic cross-sections, as well as the elastic slope parameter, are obtained for proton-proton and ... -
Investigation into the event-activity dependence of ϒ(nS) relative production in proton-proton collisions at √s= 7 TeV
(2020) [Artigo de periódico]The ratios of the production cross sections between the excited ϒ(2S) and ϒ(3S) mesons and the ϒ(1S) ground state, detected via their decay into two muons, are studied as a function of the number of charged particles in ... -
Investigation of freshwater sponges spicules deposits in a karstic lake in Brazil
(2016) [Artigo de periódico]The environmental conditions which contributed to the formation of the notorious quaternary deposits of freshwater sponge spicules in karstic lentic environments in Brazil have been subject of some speculation. No investigation ... -
Investigation of indirect structural and chemical parameters of GeSi nanoparticles in a silica matrix by combined synchrotron radiation techniques
(2012) [Artigo de periódico]The formation of GeSi nanoparticles on an SiO2 matrix is studied here by synchrotron-based techniques. The shape, average diameter and size dispersion were obtained from grazing-incidence small-angle X-ray scattering data. ... -
Investigation of K + K − interactions via femtoscopy in Pb-Pb collisions at √sNN = 2.76 TeV at the CERN Large Hadron Collider
(2023) [Artigo de periódico]Femtoscopic correlations of nonidentical charged kaons (K+K−) are studied in Pb-Pb collisions at a center-ofmass energy per nucleon-nucleon collision √sNN = 2.76 TeV by ALICE at the CERN Large Hadron Collider. One-dimensional ... -
Investigation of medium and heavy nuclei by quasi-free-proton scattering
(1960) [Artigo de periódico] -
Investigation of nuclear structure by quasi-free scattering with polarized protons
(1981) [Artigo de periódico]Quasi-free scattering with polarized protons can be a sensitive method to probe certain spin correlations in the nuclear wave function. This is demonstrated by the comparison of the effective polarizations following from ... -
Investigation of potential biomarkers for the early diagnosis of cellular stability after the exposure of agricultural workers to pesticides
(2016) [Artigo de periódico]Agricultural workers involved in the harvest of tobacco crops are regularly exposed to large quantities of pesticides. In order to determine how this exposure to pesticides induces genetic alterations in these workers, ... -
Investigation of the interaction of 2-(2’-Hydroxyphenyl)-benzoxazoles and their derivatives with B-DNA by docking and molecular dynamics
(2015) [Artigo de periódico]In this work we carried out a study covering conformational analysis, docking calculations and molecular dynamics (MD) simulations of six excited state intramolecular proton transfer (ESIPT)-fluorescent 2-(2’-hydroxyphen ...