174,902 research outputs found
Exclusive tensor meson photoproduction
No full textWe study tensor meson photoproduction outside of the resonance region, at beam energies of a few GeVs. We build a model based on Regge theory that includes the leading vector and axial exchanges. We consider two determinations of the unknown helicity couplings and fit to the recent a2 photoproduction data from CLAS. Both choices give a similar description of the a2 cross section but result in different predictions for the parity asymmetries and the f2 photoproduction cross section. We conclude that new measurements of f2 photoproduction in the forward region are needed to pin down the correct production mechanism. We also extend our predictions to the 8.5 GeV beam energy, where current experiments are running
Una producción de cerámica común y de lucernas del Medio Oriente (Antioquía?) identificadas en Vigo (Galicia, Spain)
No full textConclusion – Border criminologies in the periphery: Conclusions, limitations and future research agenda
No full textIn sum, this collection has intended, first and foremost, to challenge
conventional wisdom in border criminology and crimmigration studies, by
broadening the analytical lens and including peripheral regions, countries,
and scholars in academic conversations. More precisely, it has aimed to
denaturalize widespread perspectives on bordered penality, regarding, e.g.,
how bordering practices are organized; if, how, and to what extent detention
and deportation practices are expanding; and how macro social forces such
as racialization processes, postcolonial arrangements, and anti-migration
sentiments are shaping immigration enforcement policies. The chapters gathered in this collection pursue this goal by unveiling the notable diversity of
migration control practices
No hai contra lealtad cautelas : comedia famosa
No full textSegún el "Catálogo de comedias sueltas conservadas en la Biblioteca de la Real Academia Española", 832, Francisco de Leyva es seudónimo de Ramírez de ArellanoPrecede al tit.: "Num. 54"Los datos de publicación constan en colofónManuel Nicolás Vázquez ejerce ca.: 1758-1781Sign.: A-C⁴, D²Texto a dos col.H Ca. 038/03
La tertulia del Ab. Bondi cél. traductor de la Eneida: versión en verso suelto / por el autor de la de Job, de Pope, de Milton i de Parini
No full textPie de imprenta arrancado, datos de imp. tomados del PALAU. - Autor de la de Job, de Pope, de Milton i de Parini es seud. de Antonio Fernández de Palazuelos. - Recl. y sign.: A-B8, C
No hai contra lealtad cautelas : comedia famosa / de don Francisco de Leyva
No full textSegún el "Catálogo de comedias sueltas conservadas en la Biblioteca de la Real Academia Española", 832, Francisco de Leyva es seudónimo de Ramírez de Arellano.
Precede al tit.: "Num. 54".
Los datos de publicación constan en colofón.
Manuel Nicolás Vázquez ejerce ca.: 1758-1781.
Sign.: A-C⁴, D².
Texto a dos col.H HAZ/2992(12
Nucleon resonance contributions to unpolarized inclusive electron scattering
No full textThe first CLAS12 experiments will provide high-precision data on inclusive electron scattering observables at a photon virtuality Q(2) ranging from 0.05 to 12 GeV2 and center-of-mass energies W up to 4 GeV. In view of this endeavor, we present the modeling of the resonant contributions to the inclusive electron scattering observables. As input, we use the existing CLAS electrocoupling results obtained from exclusive meson electroproduction data off protons, and evaluate for the first time the resonant contributions based on the experimental results on the nucleon resonance electroexcitation. The uncertainties are given by the data and duly propagated through a Monte Carlo approach. In this way, we obtain estimates for the resonant contributions, important for insight into the nucleon parton distributions in the resonance region and for the studies of quark-hadron duality
Structure of pion photoproduction amplitudes
No full textWe derive and apply the finite energy sum rules to pion photoproduction. We evaluate the low-energy part of the sum rules using several state-of-the-art models. We show how the differences in the low-energy side of the sum rules might originate from different quantum number assignments of baryon resonances. We interpret the observed features in the low-energy side of the sum rules with the expectation from Regge theory. Finally, we present a model, in terms of a Regge-pole expansion, that matches the sum rules and the high-energy observables
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