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See detailExcited [70,l(+)] baryons in large N-c QCD
Matagne, Nicolas; Stancu, Floarea ULg

in Physics Letters B (2005), 631(1-2), 7-15

The masses of the positive parity [70, 0(+)] and [70, 2(+)] non-strange baryons are calculated in large N-c QCD by considering the most dominant operators in an 1/N-c expansion. The approach is based on ... [more ▼]

The masses of the positive parity [70, 0(+)] and [70, 2(+)] non-strange baryons are calculated in large N-c QCD by considering the most dominant operators in an 1/N-c expansion. The approach is based on the introduction of an excited core, obtained after the last particle (an excited quark) has been removed. Configuration mixing is neglected, for simplicity. Although being a sub-leading 1/Nc order, we find that the spin-spin interaction plays a dominant role in describing the data. The role of No operators is also pointed out. We show how the contribution of the linear term in Nc, of the spin-spin and of the spin-orbit terms vary with the excitation energy. (c) 2005 Elsevier B.V. All rights reserved. [less ▲]

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See detailExcited baryons in the 1/N(c) expansion
Matagne, Nicolas; Stancu, Floarea ULg

in World Scientific (2005)

We review results for the mass spectrum of orbitally excited baryons obtained in the $1/N_c$ expansion. We show the dependence of various contributions to the mass operator as a function of the excitation ... [more ▼]

We review results for the mass spectrum of orbitally excited baryons obtained in the $1/N_c$ expansion. We show the dependence of various contributions to the mass operator as a function of the excitation energy. [less ▲]

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See detailExcited states of gaseous ions. Transition to and predissociation of the C2 sigma U+ state of N2+
Lorquet, Jean-Claude; Desouter, Michèle ULg

in Chemical Physics Letters (1972), 16

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See detailExciter les sens pour bouleverser les cœurs : les processions post-tridentines dans les régions de culture baroque
Delfosse, Annick ULg

in Psychoyou, Théodora (Ed.) Musiques et réformes religieuses aux XVIe et XVIIe siècles : statuts, fonctions, pratiques (2008)

During the decades following the Council of Trent, Reformed Catholicism - particularly in the areas marked by Baroque culture - came to know heightened modes of expression, and religious ceremonies ... [more ▼]

During the decades following the Council of Trent, Reformed Catholicism - particularly in the areas marked by Baroque culture - came to know heightened modes of expression, and religious ceremonies reached a remarkable level of grandeur. The author focuses the paper on both the "ordinary" and "extraordinary" processions of the post-Tridentine liturgy. Following a reminder about what a procession is and brief comments about the ceremonial and disciplinary rules laid down by Rome and the diocesan authorities, she envisions these processions as multi-sensory phenomena of which she underlines the dimension of sound. Finally, she shows how this over-stimulation of the senses allowed the faithful to lose themselves in God. [less ▲]

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See detailExciton dissociation at donor-acceptor heterojunctions: Dynamics using the collective effective mode representation of the spin-boson model
Chenel, Aurélie; Mangaud, Etienne; Burghardt, Irène et al

in Journal of Chemical Physics (2014), 140

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See detailAn exclosure experiment to assess the impact of ungulates on plant diversity in Belgium
VANDENSCHRICK, François; Lehaire, François ULg; Licoppe, Alain ULg et al

Poster (2013, August)

The erosion of biodiversity is caused by many factors. Large ungulates, which occupy a large part of the Walloon forests, can also influence the distribution and dynamics of plant species. Therefore, they ... [more ▼]

The erosion of biodiversity is caused by many factors. Large ungulates, which occupy a large part of the Walloon forests, can also influence the distribution and dynamics of plant species. Therefore, they impact the biodiversity of our temperate forests. The aim of the present study is to identify changes in forest understory vegetation due to the pressure exerted by wild ungulates thanks to an exclosure-enclosure experiment. This study was conducted on a high plateau of the Ardenne, in the forest of St Michel Freyr (South Belgium). The forested area is dominated by beech and spruce where red deer, wild boar and roe deer are living in sympatry. 150 sampling plots were established in 2000. Each plot consisted of two closed enclosures of 4 m² each and one exclosure of 4 m² as control under pressure of ungulates. Sampling was carried out systematically by a 500m-square mesh. The cover rate and height of some easily identifiable species were measured regularly since 2000 (2001, 2002, 2003, 2004, 2007, 2011-2012). In addition, we identified each herbaceous species in 2011-2012 to analyze the species richness after more than 10 years exclosure. Ligneous species showed an increase of developpement in the fenced area. These species are more impacted when they are not much represented in the study site.Species richness and diversity are higher in areas impacted by herbivory. Monocotyledons are mainly favorised while tree seedlings are unfavorised. Browsing on the trees keeps the area free from high vegetation and allows light to reach the ground. In the same time, herbaceous species have a lower cover rate in the enclosure because of the competitive exclusion induced by shrub and tree seedlings layer. If the apparition of most species is favorised by ungulates, they induce a lag of gowth on dicotyledons which have a higher palatability than monocotyledons. Ungulates have the ability to impact the distribution of vegetal species by the modification of the competitive interaction. By their pressure on tree and shrub species, they induce a higher diversity of the ground flora. However, this change in vegetation composition is slow and requires a long-term studie, specially in areas of low biomass productivity like the St-Hubert forest. [less ▲]

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See detailExclusion de l'assurance chômage et réinsertion sur le marché du travail
de Lathouwer, L.; Bogaerts, K.; Perelman, Sergio ULg

Report (2000)

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See detailL'exclusion de la réassurance des règles européennes de conflits de juridictions en matière de contrats d'assurance
Boularbah, Hakim ULg

in Bulletin des Assurances = Tijdschrift voor Verzekeringen (2002)

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See detailExclusion en Science humaine – Exclusion en Province de Liège
Jamin, Jérôme ULg

Conference given outside the academic context (2005)

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See detailL'exclusion et le retrait non judiciaires dans les sociétés à responsabilité limitée
Aydogdu, Roman ULg

in Droit des Affaires : Revue Internationale du Droit des Affaires = Ondernemingsrecht : Internationaal Tijdschrift voor Ondernemingsrecht [= DA OR] (2007)

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See detailL'exclusion et le retrait non-judiciaires dans les sociétés à responsabilité limitée
Caprasse, Olivier ULg; Aydogdu, Roman ULg

in Droit des Affaires : Revue Internationale du Droit des Affaires = Ondernemingsrecht : Internationaal Tijdschrift voor Ondernemingsrecht [= DA OR] (2007)

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See detailExclusion et sciences humaines
Jamin, Jérôme ULg

Report (2004)

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See detailExclusion of farmers as a consequence of quality certification and standardisation
Vuylsteke, Anne; Van Huylenbroeck, Guido; Collet, Eric et al

in Cahiers Options Méditerranéennes (2005), 64

During the past decades, Belgian and European agriculture encountered several crises and as a result, food safety and quality have become governmental issues. This has led to vertical coordination and the ... [more ▼]

During the past decades, Belgian and European agriculture encountered several crises and as a result, food safety and quality have become governmental issues. This has led to vertical coordination and the appearance of quality conventions between links in the food supply chain. In practice, the quality conventions initiated by changed institutional settings turned out to be compulsory. This research aims to assess the exclusion-effect of this process and this is undertaken through data-analysis concerning farmers' participation in certification initiatives and homogeneity analysis. The results of a survey concerning 319 Belgian farmers show that 25% of the farmers are not involved in any initiative of quality improvement. They are significantly older and less educated, but have also very little access to farmers' organisations and extension. Their gross margin is lower in comparison with participants; they are more oriented to one specialisation and are less labour intensive. The combination of these elements can be seen as a constraint to enter initiatives and as a probable danger to exclude the concerned farmers from the market. This paper further elaborates upon these results, but also studies farmers' opinion regarding laws, contracts and labels. Finally, some recommendations towards public policies are made. [less ▲]

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See detailExclusion of Liability under Belgian Construction Law
Kohl, Benoît ULg; Van Houtte, Vera; Leroy, Sébastien

Conference given outside the academic context (2007)

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See detailExclusive central production of dijets at hadronic colliders
Ivanov, Igor ULg; Cudell, Jean-René ULg; Dechambre, Alice et al

in AIP Conference Proceedings (2009), 1105

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See detailExclusive diffractive Higgs and jet production at the LHC
Royon, Christophe; Staszewski, Rafal; Dechambre, Alice ULg et al

in PoS - Proceedings of Science (2010, August 02), PoS DIS2010(PoS DIS2010), 087

The implementation of exclusive diffractive production of Higgs boson and dijets in the FPMC (Forward Physics Monte Carlo) framework is presented following the models by Khoze, Martin, Ryskin and Cudell ... [more ▼]

The implementation of exclusive diffractive production of Higgs boson and dijets in the FPMC (Forward Physics Monte Carlo) framework is presented following the models by Khoze, Martin, Ryskin and Cudell, Dechambre, Hernandez and Ivanov. The predictions of the models are compared to the CDF measurement of exclusive jets and the uncertainties on the Higgs boson and jet production cross sections at the LHC are discussed. [less ▲]

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See detailExclusive J/psi and Upsilon hadroproduction and the QCD odderon
Bzdak, A.; Motyka, L.; Szymanowski, L. et al

in Physical Review. D (2007), 75(9),

We study pp and pp collisions which lead to the exclusive production of J/psi or Upsilon from the pomeron-odderon and the pomeron-photon fusion. We calculate scattering amplitudes of these processes in ... [more ▼]

We study pp and pp collisions which lead to the exclusive production of J/psi or Upsilon from the pomeron-odderon and the pomeron-photon fusion. We calculate scattering amplitudes of these processes in the lowest-order approximation and in the framework of k(perpendicular to) factorization. We present estimates of cross sections for the kinematic conditions of the Tevatron and of the LHC. [less ▲]

Detailed reference viewed: 26 (8 ULg)