Search results for "Opole"
showing 10 items of 253 documents
Approche géoarchéologique sur la nécropole monumentale d'Escolives-Ste-Camille (Yonne): un site en bordure d'un chenal de l'Yonne à l'époque néolithi…
2006
Die Herausbildung des Mittelneolithikums I Cerny wird im Südosten des Pariser Beckens von dem Auftauchen monumentaler Nekropolen in den Sohlen von Flusstälern begleitet. Die Eingliederung dieser Bestattungsplätze in die Landschaft lässt eine ausdrückliche Absicht erkennen und tradiert möglicherweise den Anspruch einer Gruppe, ihr Gebiet deutlich als das ihre auszuweisen. Vor diesem Hintergrund waren die Ausgrabungen der Nekrolpole von Escolives-Sainte-Camille ‘La Pièce de l'Étang’ von Untersuchungen begleitet, welche die Umgebung des Fundplatzes in neolithischer Zeit bestimmen sollten. Es ging darum, die Einfügung des Platzes zwischen zwei Paläorinnen in ihrem hydrographischen Milieu zu rek…
Geometric quantization in the presence of an electromagnetic field
1983
Some aspects of the formalism of geometric quantization are described emphasizing the role played by the symmetry group of the quantum system which, for the free particle, turns out to be a central extensionG(m) of the Galilei groupG. The resulting formalism is then applied to the case of a particle interacting with the electromagnetic field, which appears as a necessary modification of the connection 1-form of the quantum bundle when its invariance group is generalized to alocal extension ofG. Finally, the quantization of the electric charge in the presence of a Dirac monopole is also briefly considered.
Gravitational scattering on a global monopole
1991
The scattering amplitude and the total scattering cross section of massless particles propagating in the gravitational field of a global monopole are derived. We find that the physical signature of such defects is a ringlike angular region where the scattering amplitude is very large. The size of this ringlike region is determined by the ratio of the global monopole mass to the Planck mass and its appearance stems from the fact that the metric of the global monopole is not asymptotically flat but rather displays the characteristic spherical angle defect. The situation is therefore very much reminiscent of scattering in the gravitational field of the cosmic string.
L'architecture funéraire des sépultures du Néolithique moyen des Noisats à Gurgy (Yonne, France)
2006
International audience
Le complexe chasséen dans l’Yonne
2020
Je ne définirai pas ici le complexe chasséen, ce qui, par ailleurs, est fait avec brio dans le présent ouvrage. En 1864, sur la colline de Chassey étaient mis au jour les premiers tessons de ce qui deviendra, au milieu du xxe s., l’un des grands sites éponymes du Néolithique français. De nombreux préhistoriens se sont penchés sur Chassey parmi lesquels figurent J. Déchelette, V. G. Childe, J. Arnal, l’Abbé Joly et enfin, J.-P. Thevenot qui publie en 2005 sous peu la synthèse d’un siècle et de...
Baudemont, le Pré-de-la-Bordonne (Saône-et-Loire) : sépultures et mobilier danubien de la première moitie du ve siècle
2020
A necropolis at Baudemont (Saône-et-Loire) that was partially excavated in 1894 has revealed approximately fifteen graves datable to the end of the 4th and 5th centuries ad. Others seem to have been emptied during the first half of the 19th century. The discovery of a negative of the objects collected in 1894 indicates the pieces originating in the danubian area, which probably reflects the presence of a group of eastern Germans among those buried in the necropolis. These discoveries offer new perspectives on the Gallic context during the 5th century.
L’habitat et la nécropole du Haut Moyen Âge du lieu-dit Le Moulin Vaquet à Honguemarre-Guenouville (Eure) : un « village prénormand » du plateau du R…
2010
Sur le plateau du Roumois, le lieu-dit Moulin Vaquet à Honguemare-Guenouville (Eure) était occupé entre le VIIe et le Xe siècle par un village, habitat rural polarisé autour d’une nécropole probablement dominée par une église de bois. La fouille de ce site par la MADE sur 8 600m2 complète celle de l’INRAP à quelques centaines de mètres. Between the 7th and 10th centuries, the “Moulin Vaquet"site, near Honguemare-Guenouville (Eure) on the Roumois Plateau, was occupied by a village – a rural settlement built around a necropolis, likely dominated by a wooden church. The 8,600m2 excavation of the site run by MADE (the Eure archaeological mission) complements the INRAP excavations a few hundred …
Searching for long-lived particles beyond the Standard Model at the Large Hadron Collider
2020
Particles beyond the Standard Model (SM) can generically have lifetimes that are long compared to SM particles at the weak scale. When produced at experiments such as the Large Hadron Collider (LHC) at CERN, these longlived particles (LLPs) can decay far from the interaction vertex of the primary proton–proton collision. Such LLP signatures are distinct from those of promptly decaying particles that are targeted by the majority of searches for new physics at the LHC, often requiring customized techniques to identify, for example, significantly displaced decay vertices, tracks with atypical properties, and short track segments. Given their non-standard nature, a comprehensive overview of LLP…
Small and hollow magnetic monopoles
2018
We deal with the presence of magnetic monopoles in a non Abelian model that generalizes the standard 't~Hooft-Polyakov model in three spatial dimensions. We investigate the energy density of the static and spherically symmetric solutions to find first order differential equations that solve the equations of motion. The system is further studied and two distinct classes of solutions are obtained, one that can also be described by analytical solutions which is called small monopole, since it is significantly smaller than the standard 't~Hooft-Polyakov monopole. The other type of structure is the hollow monopole, since the energy density is endowed with a hole at its core. The hollow monopole …
Q7-branes and their coupling to IIB supergravity
2007
We show how, by making use of a new basis of the IIB supergravity axion-dilaton coset, SL(2,R)/SO(2), 7-branes that belong to different conjugacy classes of the duality group SL(2,R) naturally couple to IIB supergravity with appropriate source terms characterized by an SL(2,R) charge matrix Q. The conjugacy classes are determined by the value of the determinant of Q. The (p,q) 7-branes are the branes in the conjugacy class detQ = 0. The 7-branes in the conjugacy class detQ > 0 are labelled by three numbers (p,q,r) which parameterize the matrix Q and will be called Q7-branes. We construct the full bosonic Wess--Zumino term for the Q7-branes. In order to realize a gauge invariant coupling …