Search results for " 14"
showing 10 items of 676 documents
Evidence for spatiotemporal shift in demersal fishery management priority areas in the western Mediterranean
2022
14 pages, 10 figures, 2 tables, 1 appendix
Search for new particles decaying into dijets in proton-antiproton collisions at root s=1.96 TeV
2009
We present a search for new particles which produce narrow two-jet (dijet) resonances using proton-antiproton collision data corresponding to an integrated luminosity of 1.13 fb(-1) collected with the CDF II detector. The measured dijet mass spectrum is found to be consistent with next-to-leading-order perturbative QCD predictions, and no significant evidence of new particles is found. We set upper limits at the 95% confidence level on cross sections times the branching fraction for the production of new particles decaying into dijets with both jets having a rapidity magnitude vertical bar y vertical bar < 1. These limits are used to determine the mass exclusions for the excited quark, axig…
Search for Standard Model Higgs Boson Production in Association with a W Boson at CDF
2012
We present a search for the standard model Higgs boson production in association with a W boson in proton-antiproton collisions (pp̅ →W±H→ℓνbb̅ ) at a center of mass energy of 1.96 TeV. The search employs data collected with the CDF II detector which correspond to an integrated luminosity of approximately 2.7 fb-1. We recorded this data with two kinds of triggers. The first kind required high-pT charged leptons and the second required both missing transverse energy and jets. The search selects events consistent with a signature of a single lepton (e±/μ±), missing transverse energy, and two jets. Jets corresponding to bottom quarks are identified with a secondary vertex tagging method and a…
Search for a low-mass scalar Higgs boson decaying to a tau pair in single-photon decays of Y(1S)
2013
We search for a low-mass scalar CP-odd Higgs boson, A(0), produced in the radiative decay of the upsilon resonance and decaying into a tau(+)tau(-) pair: Y(1S) -> gamma A(0). The production of Y(1S) mesons is tagged by Y(2S) -> pi(+)pi(-) Y(1S) transitions, using a sample of (98.3 +/- 0.9) x 10(6) Y(2S) mesons collected by the BABAR detector. We find no evidence for a Higgs boson in the mass range 3: 5 <= m(A)0 <= 9: 2 GeV, and combine these results with our previous search for the tau decays of the light Higgs in radiative Y(3S) decays, setting limits on the coupling of A(0) to the b (b) over bar quarks in the range 0.09-1.9. Our measurements improve the constraints on the parameters of th…
Deeply virtual compton scattering off the neutron.
2007
The present experiment exploits the interference between the Deeply Virtual Compton Scattering (DVCS) and the Bethe-Heitler processes to extract the imaginary part of DVCS amplitudes on the neutron and on the deuteron from the helicity-dependent D$({\vec e},e'\gamma)X$ cross section measured at $Q^2$=1.9 GeV$^2$ and $x_B$=0.36. We extract a linear combination of generalized parton distributions (GPDs) particularly sensitive to $E_q$, the least constrained GPD. A model dependent constraint on the contribution of the up and down quarks to the nucleon spin is deduced.
Determination of the width of the top quark
2011
We extract the total width of the top quark, Gamma_t, from the partial decay width Gamma(t -> W b) measured using the t-channel cross section for single top quark production and from the branching fraction B(t -> W b) measured in ttbar events using up to 2.3 fb^-1 of integrated luminosity collected by the D0 Collaboration at the Tevatron ppbar Collider. The result is Gamma_t = 1.99 +0.69 -0.55 GeV, which translates to a top-quark lifetime of tau_t = (3.3 +1.3 -0.9) x 10^-25 s. Assuming a high mass fourth generation b' quark and unitarity of the four-generation quark-mixing matrix, we set the first upper limit on |Vtb'| < 0.63 at 95% C.L.
The influence of Van Espen thought in the eighteenth century Spain
2001
Este trabajo fue presentado, en versión francesa, al Zegerd-Bernard van Espen. 300 Years Jus Ecclesiasticum Universum, coloquio internacional organizado por el Departamento de Derecho Canónico de la Universidad de Lovaina en septiembre del año 2000. La obra del jurisconsulto y canonista flamenco Zeger-Bernard Van Espen (1646-1728) tuvo una gran incidencia en la España del siglo XVIII. En el trabajo se precisa cómo penetró su obra y qué españoles fueron sus primeros lectores y difusores hasta influir de manera muy importante en la política religiosa de Carlos III y en los grupos episcopalistas del reinado de Carlos IV. The works of the Flemish jurist and expert in canon law Zeger-Bernhard Va…
Élites di governo e «mastre» ad Agrigento fra Trecento e Quattrocento
2002
ITALIANO: Sebbene le comunità demaniali siciliane acquisiscano un peso centrale ed inedito nei regni di Martino e di Alfonso V, a parte poche eccezioni mancano ricerche monografiche e comparate delle dinamiche sociali cittadine. Questo articolo prende in esame la città di Agrigento, in particolare la formazione dei raggruppamenti sociali, il loro differente ruolo politico e gli equilibri di potere tra i gruppi di governo, con riferimento alle istituzioni delle liste di eleggibili per l'elezione alle cariche locali. È opinione comune che le istituzioni di tali liste rappresentino l'affermazione della aristocrazia, sugli altri raggruppamenti sociali, nelle dinamiche urbane sin dalla seconda m…
El parlamento de Juan II ante las cortes generales de Monzón (1469). Una pequeña crónica autobiográfica en lengua castellanoaragonesa
2016
Resumen: Edicion critica y estudio historico, formal y linguistico del discurso con el que Juan II de Aragon abrio, el 13 de noviembre de 1469, las cortes generales de Monzon. En plena guerra civil catalana, los rebeldes habian ofrecido la corona a Renato de Anjou, y la llegada desde Francia de su hijo, el duque de Lorena, con un poderoso ejercito obligaba a pedir subsidios para afrontar la grave situacion. En este parlamento, una de las escasas muestras de aragones tardio conservadas, el monarca hizo un relato autobiografico de su reinado de innegable sesgo maniqueo. Palabras clave: Juan II de Aragon, oratoria parlamentaria, Corona de Aragon, cortes generales, siglo XV, guerra civil catala…