Baryonic Decays of Charmonium - a Window on Internal Baryon Structure

The baryonic decays of $J/ \psi$ provide a new way to study the internal structure of baryons. A simple diquark model applied to the calculation of the $\bar{B}B$ decay cross-sections is compared with the ordinary constituent quark model. Various models also give different predictions for the rates involving the $N^{\ast}(1440)$ resonance in the final state.Comment: A contribution to MENU 2004 Proceeding

Theoretical approaches to low energy KˉN\bar{K}N interactions

We provide a direct comparison of modern theoretical approaches based on the SU(3) chiral dynamics and describing the low energy $\bar{K}N$ data. The model predictions for the $\bar{K}N$ amplitudes and pole content of the models are discussed.Comment: 4 pages, to appear in Proceedings of the MESON2016 - the 14th International Workshop on Meson Production, Properties and Interaction, June 2-4, 2016, Krakow, Polan

Chiral model for KˉN\bar{K}N interactions and its pole content

We use chirally motivated effective meson-baryon potentials to describe the low energy $\bar{K}N$ data including the characteristics of kaonic hydrogen. Our results are examined in comparison with other approaches based on the unitarity and dispersion relation for the inverse of the T-matrix. We demonstrate that the movements of the poles generated by the model upon varying the model parameters can serve as a tool to get additional insights on the dynamics of the strongly coupled $\pi\Sigma$-$\bar{K}N$ system.Comment: contribution to the Chiral10 workshop, Valencia (Spain), June 21-24, 201

SIDDHARTA impact on KˉN\bar{K}N amplitudes used in in-medium applications

We have performed new fits of our chirally motivated coupled--channels model for meson-baryon interactions and discussed the impact of the SIDDHARTA measurement on the $\bar{K}N$ amplitudes in the free space and in nuclear medium. The kaon--nucleon amplitudes generated by the model are fully consistent with our earlier studies that used the older kaonic hydrogen data by the DEAR collaboration. The subthreshold energy dependence of the in-medium $\bar{K}N$ amplitudes plays a crucial role in $\bar{K}$--nuclear applications.Comment: 4 pages, published in Proceedings of the MESON 2012 conference, Cracow, Poland, May 31 - June 5, 201

Bridging the finance gap for small firms. The role of information flows across large firm-based production networks in supplying finance to small firms: the case of France

This paper discusses finance problems of small firms. Since small firms and banks belong to different economic worlds, as a result of which information assymetries emerge, credit rationing leads to sub-optimal financing arrangements. The paper analyses institutional solutions to these information assymetries between banks andsmall firms and argues that, as a result of the political-economic development ofFrance since the Second World War, production networks around large firms have become the institutional solution for the finance problems of small firms. These intricate links allow for multi-layered information, which can be meaningfully understood by both, to flow smoothly between large and small firms. The paper concludes by raising the relevance of this particular solution for similar problems in other countries. -- In dem Papier steht das Finanzierungsproblem kleiner Unternehmen im Mittelpunkt. Angesichts der Tatsache, daß Kleinunternehmen und Banken unterschiedlichen ökonomischen "Welten" angehören und es deshalb zu asymmetrischen Informationsniveaus kommt, folgen aus der Beschränkung von Krediten suboptimale Finanzierungsarrangements. Deshalb werden in dem Papier institutionelle Lösungenfür diese Informationsasymmetrien zwischen den Banken und den kleinen Unternehmen analysiert. Bezogen auf Frankreich zeigt sich als Resultat der politisch-ökonomischen Entwicklung nach dem 2. Weltkrieg, daß Produktionsnetzwerke rund um Großunternehmen zu einer institutionellen Lösung der Finanzierungsprobleme der Kleinunternehmen geworden sind, da dadurch die bestehenden Informationsasymmetrien vermindert werden. Das Papier schließt mit der Überlegung, welche Bedeutung diese spezifische Lösung für ähnliche Probleme in anderen Ländern hat

Financial Constraints on New Firms:Looking for Regional Disparities

Financial constraints affecting new firms are some of the factors most cited forimpeding entrepreneurial dynamics from flourishing. This article introduces the problem ofregional patterns of financial constraints. The research is conducted with regard to the Frenchregions and the new French firms being tracked at the firm level. It refers to entrepreneurialprojects that are concretized in new firms. General entrepreneurial intentions in the Frenchpopulation that are aborted due to financial constraints are not reported. The point is ofimportance as the firm financing conditions are considered. First, an assessment of theregional banking activity leads to the conclusion of a relatively homogeneous situation, theactivity in the core-region Île-de-France appearing however more contrasted. Second, thefinancial constraints affecting new firms are distinguished according to a four-case typologyof credit rationing. It appears, inter alia, that a majority of firms is not facing credit rationing,but also that a non-negligible share is “self-constrained”. The classification is, third andfinally, differentiated according to the regions. Despite the relatively homogeneous bankingsupply, some differences may still be at work. The explanations are hypothetical at this stage butevidence suggests that the regional dimension should definitely deserve further attention.Financial constraints; Credit rationing; New Firms; Regional Disparities