1,721,722 research outputs found
Vesuvius: volcanic hazard and Civil Defense
No full textthe paper discuss the wrong delimitation of the Red Zone around the Vesuvius and indicates alternative solutions following scientific criteria. Also it discuss the wrong decision of the location for the building of the largest civil hopsital of southern Italy in the Red Zone of Vesuviu
A critical point in the distribution of lepton energies from the decay of a spin-1 resonance
Full text linkAbstract We consider a spin-1 resonance produced with an arbitrary spectrum of velocities and decaying into a pair of massless leptons, and we study the probability density function of the energy of the leptons in the laboratory frame. A special case is represented by the production of W bosons in proton-proton collisions, for which the energy of the charged lepton from the decaying W can be measured with sufficient accuracy for a high-precision measurement of M W . We find that half of the resonance mass is a special value of the lepton energy, since the probability density function at this point is in general not analytic for a narrow-width resonance. In particular, the higher-order derivatives of the density function are likely to develop singularities, such as cusps or poles. A finite width of the resonance restores the regularity, for example by smearing cusps and poles into local stationary points. The quest for such points offers a handle to estimate the resonance mass with much reduced dependence on the underlying production and decay dynamics of the resonance
TEMPERATURE OF DEPOSITION OF A FLOW DEPOSITS (NUEE' ARDENTE) NEAR PALMA CAMPANIA (NAPLES)
No full textTemperature of deposition of a flow deposit (nuee' ardent) of the Somma-Vesuvio volcanic complex near Palma Campania (Naples).
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Evoluzione delle vulcaniti ad affinità shoshonitica dei Campi Flegreis.l.:studio petrografico e geochimico
No full textTemperature of deposition of a flow deposit (nuee' ardent) of the Somma-Vesuvio volcanic complex near Palma Campania (Naples).
No full textTEMPERATURE OF DEPOSITION OF A FLOW DEPOSITS (NUEE' ARDENTE) NEAR PALMA CAMPANIA (NAPLES)
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