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1. Les influences des déterminants de la qualité relationnelle des banques islamiques sur l’engagement de leurs clients

Author

imen GDOURA ABDENNADHER, Karim TRABELSI, and Tarek ABDELLATIF

Subjects
confiance, Finance, HG1-9999
Abstract

Au-delà de leurs fondements et préceptes religieux, les banques islamiques sont avant tout des établissements financiers se devant de présenter au moins un niveau de compétitivité similaire à celui des banques conventionnelles (Razak et al., 2013). Dans la présente recherche, nous explorons les déterminants de la qualité relationnelle des banques islamiques susceptibles d’accroître leur capacité à faire face à leurs concurrents. Sur la base d’une enquête par questionnaire réalisée auprès de 44 experts, nous avons procédé à une modélisation par la méthode des cartes cognitives. Une analyse structurelle opérée à l’aide du logiciel MICMAC révèle que l’éthique religieuse islamique et la satisfaction agissent comme variables motrices de la qualité relationnelle des banques islamiques tunisiennes, alors que la confiance joue le rôle de variable relais.

Published
2017

6. Measurement of the B+/B0 production ratio in e+e− collisions at the ϒ(4S) resonance using B→J/ψ(ℓℓ)K decays at Belle

Author

Shubhangi Krishan Maurya, Thomas E Browder, Jyotirmoi Borah, Saurabh Sandilya, Christos Hadjivasiliou, Hiroaki Aihara, Andrzej Bożek, Dmitri Liventsev, Markus Tobias Prim, Ichiro Adachi, Christoph Schwanda, Jan Strube, MIN-ZU WANG, Shohei Nishida, Daniel Ferlewicz, Bruce Yabsley, Longke Li, Paolo Branchini, Leo Piilonen, Stephan Paul, Anselm Vossen, Mario Merola, Jake Bennett, Peter Kodyš, Marcello Campajola, Chunhui Chen, Masako Iwasaki, Isamu Nakamura, Karim Trabelsi, J B Singh, Vipin Gaur, Kevin Varvell, Sourav Patra, Chang-Zheng Yuan, Akimasa Ishikawa, Giacomo De Pietro, Seongbae Yang, Peter Mandeville Lewis, David Asner, Chia-Ling Hsu, PHILLIP URQUIJO, Kiyoshi Tanida, and Elena Solovieva

Published
2023

7. Rolling Balance Board Robust Stabilization: A MID-based Design

Author

Amina BENARAB, Molnar, Csenge A., Islam Boussaada, Karim Trabelsi, Tamás Insperger, Silviu-Iulian Niculescu, BENARAB, Amina, Idex Paris-Saclay - - IPS2011 - ANR-11-IDEX-0003 - IDEX - VALID, Laboratoire des signaux et systèmes (L2S), CentraleSupélec-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut Polytechnique des Sciences Avancées (IPSA), Dynamical Interconnected Systems in COmplex Environments (DISCO), Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Laboratoire des signaux et systèmes (L2S), CentraleSupélec-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-CentraleSupélec-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Budapest University of Technology and Economics [Budapest] (BME), and ANR-11-IDEX-0003,IPS,Idex Paris-Saclay(2011)

Subjects
[INFO.INFO-SY] Computer Science [cs]/Systems and Control [cs.SY], exponential stability, [MATH.MATH-GM] Mathematics [math]/General Mathematics [math.GM], [MATH] Mathematics [math], [SPI.AUTO]Engineering Sciences [physics]/Automatic, Multiplicity-Induced-Dominancy, [MATH.MATH-GM]Mathematics [math]/General Mathematics [math.GM], Human balance, [SPI.AUTO] Engineering Sciences [physics]/Automatic, Control and Systems Engineering, [INFO.INFO-SY]Computer Science [cs]/Systems and Control [cs.SY], [NLIN] Nonlinear Sciences [physics], [NLIN]Nonlinear Sciences [physics], [MATH]Mathematics [math]
Abstract

International audience; This paper considers the stabilization of a rolling balance board by means of the multiplicity-induceddominancy property. A two degree-of-freedom mechanical model of a human balancing on a rolling balance board is analyzed in the sagittal plane. The human body is modeled by an inverted pendulum which connects to the balance board through the ankle joint. The system is stabilized by the ankle torque managed by the central nervous system (CNS). The action of the CNS is modeled by a delayed full state feedback: a pointwise delay stands for all latencies in the neuromechanical system (reaction time, neuromechanical lag, etc.). The aim of the paper is to achieve a good occurrence in terms of the decay rate, it shows the links with dominancy and with the exponential stability property of the solution.

Published
2022

8. A new approach to semi-leptonic tags in $B$-meson semi-invisible decays

Author

Gaetano de Marino, Diego Guadagnoli, Chan Beom Park, Karim Trabelsi, and HEP, INSPIRE

Subjects
flavor, lepton, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, BELLE, meson, LHC-B, High Energy Physics - Experiment, [PHYS.HPHE] Physics [physics]/High Energy Physics - Phenomenology [hep-ph], High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), statistics, efficiency
Abstract

Kinematic variables designed for pairwise decays to partly undetected final states -- a prominent example being $M_{T2}$ and its Lorentz-invariant version $M_2$ -- have been extensively deployed in high-$p_T$ collider searches. A new range of potential applications at flavour facilities -- where $B$ mesons or $\tau$ leptons are also pairwise produced -- was recently proposed. One general challenge in these decays arises if both the signal parent and the 'other' parent, often used as a tag, decay semi-invisibly. In such cases, which notably include semi-leptonic tags, signal identification is generally hindered by the ensuing lack of knowledge of the signal-parent boost. $M_2$ helps precisely to overcome this challenge, and allows to leverage the otherwise superior efficiency of semi-leptonic decays. Our strategy rests on two novel constraints that can be imposed on $M_2$. The first is that of the known mass of the decaying-parent mass squared which, in connection with other constraints, gives rise to $M_{2sB}$. The second is on the flight direction of the signal parent, often well reconstructed at facilities with high vertexing capabilities such as Belle II and LHCb. This constraint gives rise to the $M_{2V}$ variable, that can be used even at facilities where the collision energy is not known. We test these ideas in a decay of great current interest in the context of the persistent discrepancies in $B$ decays, namely $B \to K \tau \mu$. We find that a bare-bones application of $M_{2sB}$ leads, alone, to an improvement that is already halfway between the current approach and the "truth-level" semi-leptonic case. Ceteris paribus -- in particular statistics -- our approach thus makes semi-leptonic tags competitive with fully reconstructed hadronic tags., Comment: 7 pages, 3 figures

Published
2022

12. Experimental determination of the isospin of Λc/Σc(2765)+

Author

Martin Ritter, Lu Cao, Armine Rostomyan, Olivier Schneider, Shohei Nishida, Bruce Yabsley, David Dossett, Frank Simon, Sam Cunliffe, Masako Iwasaki, Karim Trabelsi, Torben Ferber, Deepanwita Dutta, Xionghong He, Chia-Ling Hsu, Shigeki Hirose, Kiyoshi Tanida, and Elena Solovieva

Subjects
Physics, Particle physics, 010308 nuclear & particles physics, Isospin, 0103 physical sciences, 010306 general physics, 01 natural sciences
Published
2020

13. Origins of the method to determine the CKM angle $\gamma$ using $B^{\pm} \to D K^{\pm}$, $D \to K_{\rm S}^0\pi^+\pi^-$ decays

Author

Ceccucci, A., Gershon, T., Kenzie, M., Ligeti, Z., Sakai, Y., Karim Trabelsi, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS]Physics [physics], experimental methods, hep-ex, Other Fields of Physics, Physics - History and Philosophy of Physics, B: decay, hep-ph, sensitivity, High Energy Physics - Experiment, D: decay, High Energy Physics - Phenomenology, benchmark, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], CP: violation, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], physics.hist-ph, CKM matrix: unitarity, Particle Physics - Experiment, Particle Physics - Phenomenology
Abstract

The angle $\gamma$ of the Cabibbo--Kobayashi--Maskawa unitarity triangle is a benchmark parameter of the Standard Model of particle physics. A method to determine $\gamma$ from $B^{\pm} \to D K^{\pm}$ with subsequent $D \to K_{\rm S}^0\pi^+\pi^-$ or similar multibody decays has been proven to provide good sensitivity. We review the first discussions on the use of this technique, and its impact subsequently. We propose that this approach should be referred to as the BPGGSZ method.

Published
2020

14. New physics in $B$ meson mixing: future sensitivity and limitations

Author

Luiz Vale Silva, Sébastien Descotes-Genon, Michele Papucci, Karim Trabelsi, Zoltan Ligeti, Jérôme Charles, S. Monteil, Centre de Physique Théorique - UMR 7332 (CPT), Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique de Clermont (LPC), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Ministerio de Ciencia, Innovación y Universidades (España), Generalitat Valenciana, and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)

Subjects
BELLE: upgrade, LHC-B: upgrade, Particle physics, Meson, Physics beyond the Standard Model, FOS: Physical sciences, 01 natural sciences, Atomic, Standard Model, High Energy Physics - Experiment, Phenomenological aspects of field theory, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), Particle and Plasma Physics, effective field theory, 0103 physical sciences, Effective field theory, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], B meson, Nuclear, meson: mixing, 010306 general physics, Mixing (physics), Physics, Quantum Physics, 010308 nuclear & particles physics, Cabibbo–Kobayashi–Maskawa matrix, hep-ex, Molecular, hep-ph, FCC-ee, sensitivity, Nuclear & Particles Physics, general methods, High Energy Physics - Phenomenology, Upgrade, CKM matrix, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], High Energy Physics::Experiment, luminosity: high, Astronomical and Space Sciences
Abstract

The mixing of neutral mesons is sensitive to some of the highest scales probed in laboratory experiments. In light of the planned LHCb Upgrade II, a possible upgrade of Belle II, and the broad interest in flavor physics in the tera-Z phase of the proposed FCC-ee program, we study constraints on new physics contributions to Bd and Bs mixings which can be obtained in these benchmark scenarios. We explore the limitations of this program, and identify the measurement of |Vcb| as one of the key ingredients in which progress beyond current expectations is necessary to maximize future sensitivity. We speculate on possible solutions to this bottleneck. Given the current tension with the standard model (SM) in semileptonic B decays, we explore how its resolution may impact the search for new physics in mixing. Even if new physics has the same Cabibbo-Kobayashi-Maskawa and loop suppressions of flavor changing processes as the SM, the sensitivity will reach 2 TeV, and it can be much higher if any SM suppressions are lifted. We illustrate the discovery potential of this program.

Published
2020

15. Multiplicity-Induced-Dominancy in parametric second-order delay differential equations: Analysis and application in control design

Author

Silviu-Iulian Niculescu, Ali El-Ati, Karim Trabelsi, Redamy Pérez-Ramos, Islam Boussaada, Laboratoire des signaux et systèmes (L2S), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Dynamical Interconnected Systems in COmplex Environments (DISCO), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), and Institut Polytechnique des Sciences Avancées (IPSA)

Subjects
0209 industrial biotechnology, Control and Optimization, and phrases: Time-delay systems, Differential equation, pole-placement, [MATH.MATH-DS]Mathematics [math]/Dynamical Systems [math.DS], control design, 02 engineering and technology, exponential decay, 01 natural sciences, Reduced order, [SPI.AUTO]Engineering Sciences [physics]/Automatic, 020901 industrial engineering & automation, Full state feedback, Applied mathematics, 0101 mathematics, Exponential decay, Mathematics, Parametric statistics, stability and stabilization, 010102 general mathematics, Argument principle, Multiplicity (mathematics), Delay differential equation, Computational Mathematics, Control and Systems Engineering
Abstract

International audience; This work revisits recent results on maximal multiplicity induced-dominancy for spectral values in reduced-order time-delay Systems and extends it to the general class of second-order retarded differential equations. A parametric multiplicity-induced-dominancy property is characterized, allowing to a delayed stabilizing design with reduced complexity. As a matter of fact, the approach is merely a delayed-output-feedback where the candidates' delays and gains result from the manifold defining the maximal multiplicity of a real spectral value, then, the dominancy is shown using the argument principle. Sensitivity of the control design with respect to the parameters uncertainties/variation is discussed. Various reduced order examples illustrate the applicative perspectives of the approach.; Ce travail revisite les résultats récents sur la dominance induite par la multiplicité maximale des valeurs spectrales dans les systèmesà retard d'ordre réduit et l'étendà la classe la plus générale générale deséquations différentielles de second ordre impliquant un retard. La propriété de dominance induite par la multiplicité est paramétriquement caractérisée, permettant la conception de loi de commande retardée, stabilisante età complexité réduite. En effet, l'approche consiste simplement en un retour de sortie retardé dans lequel les retards et les gains des candidats résultent de la variété définissant la multiplicité maximale d'une valeur spectrale réelle, puis la dominance est montrée en utilisant le principe de l'argument. La sensibilité de la conception de la commande aux paramètres incertains/variant est discutée. Divers exemples d'ordre réduit illustrent les perspectives applicatives de l'approche.

Published
2019

16. Certified Descent Algorithm for shape optimization driven by fully-computable a posteriori error estimators

Author

Olivier Pantz, Matteo Giacomini, Karim Trabelsi, Centre de Mathématiques Appliquées - Ecole Polytechnique (CMAP), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Institut Polytechnique des Sciences Avancées (IPSA), Shape reconstruction and identification (DeFI ), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)-Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), Laboratoire Jean Alexandre Dieudonné (LJAD), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA), Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre de Mathématiques Appliquées - Ecole Polytechnique (CMAP), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Jean Alexandre Dieudonné (JAD), Université Côte d'Azur (UCA)-Université Nice Sophia Antipolis (... - 2019) (UNS), and COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Certified Descent Algorithm, Control and Optimization, 010103 numerical & computational mathematics, 01 natural sciences, Upper and lower bounds, Shape optimization, FOS: Mathematics, 49Q10, 65M60, 65N15, Mathematics - Numerical Analysis, 0101 mathematics, Mathematics - Optimization and Control, Electrical Impedance Tomography, A posteriori error estimator, Free energy principle, Mathematics, Estimator, Numerical Analysis (math.NA), Finite element method, 010101 applied mathematics, Parameter identification problem, Computational Mathematics, Optimization and Control (math.OC), Control and Systems Engineering, A priori and a posteriori, [MATH.MATH-OC]Mathematics [math]/Optimization and Control [math.OC], Descent direction, Algorithm, [MATH.MATH-NA]Mathematics [math]/Numerical Analysis [math.NA]
Abstract

International audience; In this paper we introduce a novel certified shape optimization strategy-named Certified Descent Algorithm (CDA)-to account for the numerical error introduced by the Finite Element approximation of the shape gradient. We present a goal-oriented procedure to derive a certified upper bound of the error in the shape gradient and we construct a fully-computable, constant-free a posteriori error estimator inspired by the complementary energy principle. The resulting CDA is able to identify a genuine descent direction at each iteration and features a reliable stopping criterion. After validating the error estimator, some numerical simulations of the resulting certified shape optimization strategy are presented for the well-known inverse identification problem of Electrical Impedance Tomography.; Dans cet article, on introduit une nouvelle stratégie d'optimisation de forme certifiée - Algorithme de Descente Certifiée (CDA) - qui prend en compte l'erreur introduite par l'approximation de la dérivée de forme par l'application de la méthode des éléments finis. On présente une procédure permettant d'obtenir une borne supérieure sur l'erreur réalisée lors du calcul de la dérivée de forme. L'estimation à posteriori est basée sur le principe de l'énergie complémentaire et ne dépend pas de constantes non explictement calculables. L'Algorithme de Descente Certifiée pour l'optimisation de forme identifie une véritable direction de descente à chaque itération et permet d'établir un critère d'arrêt fiable. Après avoir validé l'estimation de l'erreur, on applique l'Algorithme de Descente Certifiée à un problème inverse issu de la tomographie d'impédance électrique.

Published
2017

17. Interculturalité et pérennité des partenariats interentreprises : le cas des alliances stratégiques internationales

Author

Karim Trabelsi

Subjects
Pérennité, La gestión intercultural, Social Sciences and Humanities, Intercultural management, Alianzas estratégicas internacionales, 05 social sciences, General Medicine, International strategic alliances, Alliances stratégiques internationales, Interculturality, Interculturalidad, Management interculturel, Sustainability, 0502 economics and business, Sciences Humaines et Sociales, 050211 marketing, La sostenibilidad, 050203 business & management, Interculturalité
Abstract

Tandis que certains chercheurs perçoivent l’interculturalité comme un frein à la pérennité des alliances stratégiques internationales, d’autres la considèrent par contre comme un facteur de longévité de ces relations. Cette divergence, que l’on retrouve d’ailleurs chez bon nombre de dirigeants, influe sur l’objet du management interculturel. Elle conduit à minimiser les différences culturelles ou à intégrer les systèmes culturels des entreprises partenaires. Ces deux approches engendrant des procédés managériaux différents, notre travail vise à analyser leur complémentarité. Dans cette perspective, nous avons mené seize entretiens semi-directifs auprès de dirigeants français et tunisiens opérant dans huit alliances asymétriques franco-tunisiennes stables. Les résultats révèlent qu’un management interculturel bimodal, basé sur l’exploitation des avantages de la diversité culturelle et l’inhibition de ses inconvénients, est source de durabilité de la coopération., While some researchers perceive interculturality as a brake on the sustainability of international strategic alliances, others see it however as a longevity factor of these relationships. This divergence, which is found also among many leaders, affects the subject of intercultural management. It leads to seek to minimize cultural differences or to integrate cultural systems of partner companies. These two approaches generating various managerial processes, our work aims to analyze their complementarity. In this perspective, we conducted sixteen semi-structured interviews with french and tunisian managers operating in eight stable franco-tunisian asymmetric alliances. Our results show that bimodal intercultural management, based on the exploitation of the benefits of cultural diversity and inhibition of its disadvantages, is a source of sustainability of cooperation., Mientras algunos investigadores consideran la interculturalidad como un freno a la sostenibilidad de las alianzas estratégicas internacionales, otros lo ven como un factor de longevidad de estas relaciones. Esta divergencia, que se encuentra también entre muchos líderes afecta al tema de la gestión intercultural. Ella lleva a intentar minimizar las diferencias culturales o a integrar los sistemas culturales de las empresas asociadas. Estos dos enfoques generan diversos procesos de gestión, nuestro trabajo tiene como objetivo analizar su complementariedad. En esta perspectiva, se realizó dieciséis entrevistas semiestructuradas con los directores franceses y tunecinos que operan en ocho alianzas asimétricas franco-tunecinas estables. Los resultados muestran que une gestión intercultural bimodal, basada en la explotación de los beneficios de la diversidad cultural y en la inhibición de sus desventajas, es una fuente de sostenibilidad de la cooperación.

Published
2016

18. Observation of τ−→π−ντe+e− and search for τ−→π−ντμ+μ−

Author

Minakshi Nayak, Hisaki Hayashii, Tadeas Bilka, Saurabh Sandilya, RAJEEV KUMAR, Lu Cao, Yifan Jin, Jan Strube, Armine Rostomyan, Vitaly Vorobyev, Olivier Schneider, Shohei Nishida, David Dossett, ZACHARY LIPTAK, Anna Vinokurova, Frank Simon, Stephan Paul, Sam Cunliffe, Anselm Vossen, Thanh Dong, Umberto Tamponi, Marcello Campajola, Masako Iwasaki, Karim Trabelsi, Zbigniew Natkaniec, J B Singh, Jens Sören Lange, Hiroaki Ono, Dmitry Matvienko, Martin Sevior, Torben Ferber, Valentina Zhukova, Guido Russo, Makoto Takizawa, Takashi Mori, Prafulla Kumar Behera, Kiyoshi Tanida, Elena Solovieva, Kirill Chilikin, and Olga Werbycka

Subjects
Physics, Research program, Higher education, 010308 nuclear & particles physics, business.industry, media_common.quotation_subject, Library science, 01 natural sciences, Excellence, 0103 physical sciences, Agency (sociology), Natural science, 010306 general physics, business, National laboratory, China, Research center, media_common
Abstract

The authors thank Pablo G. Roig and Gabriel L. Castro from CINVESTAV for the extensive help and fruitful discussions. We thank the KEKB group for the excellent operation of the accelerator; the KEK cryogenics group for the efficient operation of the solenoid; the KEK computer group, and the Pacific Northwest National Laboratory (PNNL) Environmental Molecular Sciences Laboratory (EMSL) computing group for strong computing support; and the National Institute of Informatics, and Science Information NETwork 5 (SINET5) for valuable network support. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan, the Japan Society for the Promotion of Science (JSPS), and the Tau-Lepton Physics Research Center of Nagoya University; the Australian Research Council including Grants No. DP180102629, No. DP170102389, No. DP170102204, No. DP150103061, and No. FT130100303; Austrian Science Fund (FWF); the National Natural Science Foundation of China under Contracts No. 11435013, No. 11475187, No. 11521505, No. 11575017, No. 11675166, and No. 11705209; Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS), Grant No. QYZDJ-SSW-SLH011; the CAS Center for Excellence in Particle Physics (CCEPP); the Shanghai Pujiang Program under Grant No. 18PJ1401000; the Ministry of Education, Youth and Sports of the Czech Republic under Contract No. LTT17020; the Carl Zeiss Foundation, the Deutsche Forschungsgemeinschaft, the Excellence Cluster Universe, and the VolkswagenStiftung; the Department of Science and Technology of India; the Istituto Nazionale di Fisica Nucleare of Italy; National Research Foundation (NRF) of Korea Grants No. 2015H1A2A1033649, No. 2016R1D1A1B01010135, No. 2016K1A3A7A09005 603, No. 2016R1D1A1B02012900, No. 2018R1A2B3003 643, No. 2018R1A6A1A06024970, and No. 2018R1D1 A1B07047294; Radiation Science Research Institute, Foreign Large-size Research Facility Application Supporting project, the Global Science Experimental Data Hub Center of theKorea Institute of Science and Technology Information and KREONET/GLORIAD; the Polish Ministry of Science and Higher Education and the National Science Center; the Grant of the Russian Federation Government, Grant No. 14.W03.31.0026; the Slovenian Research Agency; Ikerbasque, Basque Foundation for Science, Spain; the Swiss National Science Foundation; the Ministry of Education and the Ministry of Science and Technology of Taiwan; and the United States Department of Energy and the National Science Foundation.

Published
2019

19. Pour une évaluation intégrative et multiperspectives de la performance des alliances asymétriques

Author

Karim Trabelsi

Subjects
Microbiology (medical), Immunology, Immunology and Allergy
Abstract

La thematique de la performance attire les efforts de nombreux chercheurs et praticiens, mais demeure a ce jour un concept controverse et ambigu. Ne derogeant pas a la regle, dans le cas des alliances asymetriques ou les motivations et les objectifs des partenaires ne sont pas integralement reveles et encore moins parfaitement convergents, la construction d’outils de mesure pertinents est un exercice perilleux. Les multiples critiques adressees a l’egard des criteres financiers ou temporels reputes « objectivistes », ou encore des mesures « subjectivistes », illustrent la complexite de cet exercice. En depit des insuffisances de ces mesures, nous partons du postulat selon lequel elles ne pourraient etre definitivement evincees. Afin de pallier leurs insuffisances et biais respectifs, nous explorons dans le prolongement des travaux de Meschi (2006), Arino (2003), Blanchot (2006), Luo (2008), Robson et al. (2008) et Ren et al. (2009), les conditions de leur complementarite dans le contexte specifique des alliances asymetriques franco-tunisiennes.

Published
2015

20. Towards a Decay Rate Assignment Based Design for Time-Delay Systems with Multiple Spectral Values

Author

Islam Boussaada, Silviu Niculescu, Karim Trabelsi, Laboratoire des signaux et systèmes (L2S), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Dynamical Interconnected Systems in COmplex Environments (DISCO), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), and Institut Polytechnique des Sciences Avancées (IPSA)

Subjects
[MATH.MATH-DS]Mathematics [math]/Dynamical Systems [math.DS], [SPI.AUTO]Engineering Sciences [physics]/Automatic
Abstract

International audience; Recent results on maximal multiplicity induced-dominancy for spectral values in reduced-order Time-Delay Systems naturally apply in controllers design. As a matter of fact, the approach is merely a delayed-output-feedback where the candidates' delays and gains result from the manifold defining the maximal multiplicity of a real spectral value, then, the dominancy is shown using the argument principle. Various reduced order examples illustrate the applicative perspectives of the approach.

Published
2018

21. Influence de la famille et du réseau relationnel sur l’acte entrepreneurial : cas des entrepreneurs tunisiens

Author

Sami Boudabbous, Karim Trabelsi, and Sarhan Abdennadher

Subjects
Microbiology (medical), Immunology, Immunology and Allergy
Abstract

Le mythe schumpeterien de l’entrepreneur isole et heroique etant de plus en plus critique, l’etude de l’incidence de la famille et du reseau relationnel sur l’acte entrepreneurial suscite l’interet de nombreux chercheurs. Dans la lignee des travaux de McGee (2000) et de Verstraete et Saporta (2006), le propos du present article est de mettre en lumiere la nature et les determinants de l’influence de ces acteurs sociaux sur la creation d’entreprise. Les resultats d’une serie d’entretiens semi-directifs menes aupres de 30 entrepreneurs tunisiens revelent que pour la famille, cette influence est multiforme, ambivalente, partielle et tributaire de la qualite de la relation entretenue avec le futur entrepreneur. Ainsi, quand bien meme la famille desapprouve l’orientation entrepreneuriale de l’un de ses membres, elle stimule l’acte entrepreneurial en pourvoyant inconditionnellement des ressources financieres. Quant au reseau relationnel, il agit comme un catalyseur a la creation d’entreprise voire un substitut au soutien familial des lors que celui-ci fait defaut. En ce sens que lorsque les parents inhibent l’acte entrepreneurial, le reseau relationnel prend la releve en soutenant psychologiquement et materiellement le porteur de projet.

Published
2015

22. Les pratiques managériales, clés de la maîtrise des effets de l’interculturalité sur les alliances stratégiques internationales

Author

Karim Trabelsi

Subjects
General Medicine
Abstract

L’interculturalite ayant souvent ete assimilee dans la litterature a un obstacle a la reussite des alliances strategiques internationales, nombreuses sont les recherches a s’etre penchees sur ce phenomene. Si cet interet de la communaute academique a permis par la suite de relativiser ce postulat en devoilant, au contraire, les bienfaits de la diversite culturelle, rares sont les etudes qui ont porte explicitement sur les pratiques d’integration culturelle et sociale des acteurs et sur la regulation des retombees de cette diversite.A partir de ce constat, outre la mise en lumiere des effets benefiques et perturbateurs des dissemblances culturelles sur le fonctionnement et la performance des alliances transfrontalieres, nous etudierons dans cet article les pratiques cles du succes en matiere de management interculturel.Les entretiens semi-directifs que nous avons menes aupres de 22 allianceurs (managers d’alliances) et de 11 salaries tunisiens et francais operant dans 11 alliances franco-tunisiennes asymetriques stables revelent que l’audit culturel, la generalisation et l’acceleration du rapprochement interculturel (via la sensibilisation des parties prenantes a l’interculturalite, la formation interculturelle interne et/ou externe, la mise en place d’une organisation aplatie et la promotion de la parite au niveau de l’equipe manageriale et des equipes de travail) representent des pratiques cles d’une gestion reussie de la diversite culturelle au sein d’une alliance strategique entre entreprises de nationalites differentes.

Published
2015

23. Derivation of nonlinear shell models combining shear and flexure: application to biological membranes

Author

Karim Trabelsi, Olivier Pantz, Shape reconstruction and identification (DeFI ), Centre de Mathématiques Appliquées - Ecole Polytechnique (CMAP), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)-Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Analyse et synthèse sonores [Paris], Sciences et Technologies de la Musique et du Son (STMS), Institut de Recherche et Coordination Acoustique/Musique (IRCAM)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche et Coordination Acoustique/Musique (IRCAM)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Direction de la Recherche et de l'Innovation de l'IPSA (DRII), Institut Polytechnique des Sciences Avancées (IPSA), Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre de Mathématiques Appliquées - Ecole Polytechnique (CMAP), and École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Numerical Analysis, Mean curvature, Materials science, [PHYS.PHYS.PHYS-BIO-PH]Physics [physics]/Physics [physics]/Biological Physics [physics.bio-ph], Biological membrane, [PHYS.MECA]Physics [physics]/Mechanics [physics], Strain energy, Computational Mathematics, Nonlinear system, Classical mechanics, Shear (geology), Homogeneous, [PHYS.MECA.SOLID]Physics [physics]/Mechanics [physics]/Solid mechanics [physics.class-ph], Compressibility, [INFO.INFO-DL]Computer Science [cs]/Digital Libraries [cs.DL], Anisotropy, [MATH.MATH-NA]Mathematics [math]/Numerical Analysis [math.NA], Civil and Structural Engineering
Abstract

International audience; Biological membranes are often idealized as incompressible elastic surfaces whose strain energy only depends on their mean curvature and pos-sibly on their shear. We show that this type of model can be derived using a formal asymptotic method by considering biological membranes to be thin, strongly anisotropic, elastic, locally homogeneous bodies.

Published
2015

24. Observation of the Decays Λb0→χc1pK− and Λb0→χc2pK−

Author

Riccardo Cenci, Barak Raimond Gruberg Cazon, Dmytro Melnychuk, Patrick Koppenburg, Ana Trisovic, Heather Wark, Sheldon Stone, Andrea Contu, Melissa Maria Cruz Torres, Karlis Dreimanis, Sergii Kandybei, Eluned Smith, Marina Artuso, Chris Burr, Maurizio Martinelli, Stephan Eisenhardt, Olaf Steinkamp, Pasquale Di Nezza, Michał Dziewiecki, Laure Massacrier, Agnieszka Oblakowska-Mucha, Lluís Garrido Beltran, Ivan Belyaev, Antonio Romero Vidal, Giovanni Passaleva, Gianluigi Casse, Victor Egorychev, Konrad Klimaszewski, Artur Ukleja, Elnur Sadykhov, Yanxi Zhang, Elena Graverini, Sofia Kotriakhova, Valerio Bocci, Angelo Di Canto, Mariusz Witek, Kazuyoshi Carvalho Akiba, Federico Betti, Andrea Mauri, Clara Matteuzzi, Alessandro Pistone, Alexandru Tudor Grecu, Patrick Haworth Owen, Olivier Leroy, Gabriele Simi, Alexander Bitadze, Heinrich Schindler, Shanzhen Chen, Francesca Dordei, Marcello Rotondo, Sergey Filippov, Johannes Albrecht, Olivier Schneider, Jeroen Van Tilburg, Fedor Baryshnikov, Michael Alexander, Paula Alvarez Cartelle, Matthew Kenzie, Irina Nasteva, Marco Cattaneo, Diego Martinez Santos, Zhenwei Yang, Cristina Lazzeroni, Pablo Vázquez Regueiro, Philip Ilten, Nicola Serra, Diego Tonelli, Andrei Tsaregorodtsev, Christopher Betancourt, Nigel Watson, Evelina Gersabeck, Victor Coco, Massimiliano Fiorini, Anton Poluektov, Mitesh Patel, Christoph Frei, Wojciech Wislicki, Marcin Kucharczyk, Anna Lupato, Murilo Rangel, Mick Mulder, Biplab Dey, Sam Cunliffe, Giovanni Punzi, Maxime Schubiger, Marta Calvi, Fernando Martinez Vidal, Illya Shapoval, Claudio Gotti, Francesco Dettori, Ricardo Graciani Diaz, Antonino Sergi, Abraham Antonio Gallas Torreira, Celestina Satriano, Paolo Gandini, Justine Serrano, Michele Veltri, Marek Idzik, Jean-François Marchand, David Hutchcroft, Jan Mickelle Maratas, Paul Seyfert, Bogdan Popovici, Frédéric Blanc, Renaud Le Gac, Michael Wilkinson, Tom Hadavizadeh, Maxim Borisyak, Jeremy Dalseno, Régis Lefèvre, Alexey Dzyuba, Eduardo Rodrigues, GIULIA MANCA, Rosen Matev, Matthew Needham, Martino Borsato, Alexander Bondar, Karim Trabelsi, Franco Bedeschi, Jolanta Brodzicka, Domenico Galli, Alessandro Cardini, Thomas Latham, Eduardo Picatoste, Claudia Patrignani, Eric Cogneras, David Chamont, Marcus Ebert, Tomasz Fiutowski, Mark Williams, Ricardo Vazquez Gomez, Miriam Calvo Gomez, Albert Comerma, Miroslaw Firlej, Conor Fitzpatrick, Xabier Cid Vidal, Holger Stevens, Luis Miguel Garcia Martin, Tomasz Szumlak, Themistocles Bowcock, Méril Reboud, Michael Winn, Marco Santimaria, Alison Tully, Gerhard Raven, Mirco Dorigo, Stéphane T'Jampens, Paolo Carniti, Ulrik Egede, Igor Gorelov, Jakub Moron, Bartłomiej Rachwał, Michael Schmelling, Federico Redi, Oliver Lupton, Antonio Augusto Alves Junior, Carlos Vázquez Sierra, Adriano Lai, Fernando Rodrigues, Manuel Tobias Schiller, Giampiero Mancinelli, Albert Puig Navarro, Lars Eklund, Jacco De Vries, Stanislav Poslavsky, Jairo Alexis Rodriguez L, Paul Soler, Cibrán Santamarina Ríos, Leandro De Paula, Eugeni Graugés, Sevda Esen, George Lafferty, Máximo Pló Casasús, Gloria Corti, Konstantin Belous, Michel De Cian, Edgar Lemos Cid, Roberta Cardinale, Carla Marin Benito, Dominik Stefan Mitzel, Chris Parkes, Andrey Ustyuzhanin, Gerco Onderwater, Alessandro Petrolini, Lorenzo Capriotti, Olivier Deschamps, Eleonora Luppi, Wojciech Krzemien, Simone Bifani, Timofei Maltsev, Pietro Marino, Roberto Calabrese, Tadeusz Lesiak, David Gascon, Maria Vieites Diaz, Suzanne Klaver, Daniel Craik, Laurent Dufour, Arantza Oyanguren, Vincent Tisserand, Claire Prouve, Stefano Perazzini, Juan José Saborido Silva, Agnieszka Dziurda, and Vladimir Gligorov

Subjects
Quantum chromodynamics, Physics, Large Hadron Collider, 010308 nuclear & particles physics, Branching fraction, General Physics and Astronomy, 01 natural sciences, Bottom quark, Nuclear physics, Baryon, 0103 physical sciences, Atomic physics, 010306 general physics, Spectroscopy
Abstract

The first observation of the decays Λ0b→χc1pK− and Λ0b→χc2pK− is reported using a data sample corresponding to an integrated luminosity of 3.0 fb−1, collected by the LHCb experiment in pp collisions at centre-of-mass energies of 7 and 8 TeV. The following ratios of branching fractions are measured B(Λ0b→χc1pK−)B(Λ0b→J/ψpK−)=0.242±0.014±0.013±0.009,B(Λ0b→χc2pK−)B(Λ0b→J/ψpK−)=0.248±0.020±0.014±0.009,B(Λ0b→χc2pK−)B(Λ0b→χc1pK−)=1.02±0.10±0.02±0.05, where the first uncertainty is statistical, the second systematic and the third due to the uncertainty on the branching fractions of the χc1→J/ψγ and χc2→J/ψγ decays. Using both decay modes, the mass of the \Lb baryon is also measured to be mΛ0b=5619.44±0.28±0.26 MeV/c2, where the first and second uncertainties are statistical and systematic, respectively.

Published
2017

25. influences des déterminants de la qualité relationnelle des banques islamiques sur l’engagement de leurs clients

Author

Imen GDOURA ABDENNADHER, Karim TRABELSI, and Tarek ABDELLATIF

Abstract

Au-delà de leurs fondements et préceptes religieux, les banques islamiques sont avant tout des établissements financiers se devant de présenter au moins un niveau de compétitivité similaire à celui des banques conventionnelles (Razak et al., 2013). Dans la présente recherche, nous explorons les déterminants de la qualité relationnelle des banques islamiques susceptibles d’accroître leur capacité à faire face à leurs concurrents. Sur la base d’une enquête par questionnaire réalisée auprès de 44 experts, nous avons procédé à une modélisation par la méthode des cartes cognitives. Une analyse structurelle opérée à l’aide du logiciel MICMAC révèle que l’éthique religieuse islamique et la satisfaction agissent comme variables motrices de la qualité relationnelle des banques islamiques tunisiennes, alors que la confiance joue le rôle de variable relais.

Published
2017

26. Measurement of the Bs0→μ+μ− Branching Fraction and Effective Lifetime and Search for B0→μ+μ− Decays

Author

Riccardo Cenci, Barak Raimond Gruberg Cazon, Dmytro Melnychuk, Patrick Koppenburg, Ana Trisovic, Heather Wark, Sheldon Stone, Andrea Contu, Melissa Maria Cruz Torres, Samuel Coquereau, Karlis Dreimanis, Sergii Kandybei, Eluned Smith, Marina Artuso, Chris Burr, Maurizio Martinelli, Stephan Eisenhardt, Olaf Steinkamp, Laure Massacrier, Agnieszka Oblakowska-Mucha, Lluís Garrido Beltran, Ivan Belyaev, Antonio Romero Vidal, Giovanni Passaleva, Gianluigi Casse, Victor Egorychev, Konrad Klimaszewski, Artur Ukleja, Elnur Sadykhov, Yanxi Zhang, Elena Graverini, Sofia Kotriakhova, Valerio Bocci, Angelo Di Canto, Mariusz Witek, Kazuyoshi Carvalho Akiba, Federico Betti, Andrea Mauri, Clara Matteuzzi, Alexandru Tudor Grecu, Patrick Haworth Owen, Olivier Leroy, Gabriele Simi, Alexander Bitadze, Fedor Ratnikov, Heinrich Schindler, Shanzhen Chen, Francesca Dordei, Marcello Rotondo, Sergey Filippov, Johannes Albrecht, Olivier Schneider, Jeroen Van Tilburg, Fedor Baryshnikov, Michael Alexander, Paula Alvarez Cartelle, Matthew Kenzie, Irina Nasteva, Marco Cattaneo, Diego Martinez Santos, Zhenwei Yang, Cristina Lazzeroni, Pablo Vázquez Regueiro, Philip Ilten, Nicola Serra, Diego Tonelli, Andrei Tsaregorodtsev, Christopher Betancourt, Nigel Watson, Evelina Gersabeck, Victor Coco, Massimiliano Fiorini, Anton Poluektov, Mitesh Patel, Christoph Frei, Wojciech Wislicki, Marcin Kucharczyk, Anna Lupato, Murilo Rangel, Flavio Archilli, Mick Mulder, Biplab Dey, Sam Cunliffe, Giovanni Punzi, Maxime Schubiger, Marta Calvi, Fernando Martinez Vidal, Illya Shapoval, Claudio Gotti, Francesco Dettori, Ricardo Graciani Diaz, Antonino Sergi, Abraham Antonio Gallas Torreira, Celestina Satriano, Paolo Gandini, Justine Serrano, Michele Veltri, Marek Idzik, Jean-François Marchand, David Hutchcroft, Jan Mickelle Maratas, Paul Seyfert, Bogdan Popovici, Frédéric Blanc, Renaud Le Gac, Michael Wilkinson, Tom Hadavizadeh, Jeremy Dalseno, Régis Lefèvre, Alexey Dzyuba, Eduardo Rodrigues, GIULIA MANCA, Rosen Matev, Matthew Needham, Alexander Bondar, Karim Trabelsi, Jaap Velthuis, Franco Bedeschi, Jolanta Brodzicka, Domenico Galli, Alessandro Cardini, Thomas Latham, Eduardo Picatoste, Claudia Patrignani, Eric Cogneras, David Chamont, Marcus Ebert, Tomasz Fiutowski, Mark Williams, Ricardo Vazquez Gomez, Miriam Calvo Gomez, Albert Comerma, Miroslaw Firlej, Conor Fitzpatrick, Xabier Cid Vidal, Mathieu Perrin-Terrin, Luis Miguel Garcia Martin, Tomasz Szumlak, Themistocles Bowcock, Michael Winn, Marco Santimaria, Alison Tully, Gerhard Raven, Mirco Dorigo, Stéphane T'Jampens, Paolo Carniti, Ulrik Egede, Igor Gorelov, Jakub Moron, Michael Schmelling, Federico Redi, Oliver Lupton, Antonio Augusto Alves Junior, Pieter David, Carlos Vázquez Sierra, Adriano Lai, Fernando Rodrigues, Manuel Tobias Schiller, Giampiero Mancinelli, Albert Puig Navarro, Lars Eklund, Jacco De Vries, Stanislav Poslavsky, Jairo Alexis Rodriguez L, Paul Soler, Cibrán Santamarina Ríos, Leandro De Paula, Eugeni Graugés, Sevda Esen, George Lafferty, Máximo Pló Casasús, Gloria Corti, Konstantin Belous, Michel De Cian, Edgar Lemos Cid, Roberta Cardinale, Carla Marin Benito, Dominik Stefan Mitzel, Chris Parkes, Gerco Onderwater, Barbara Storaci, Alessandro Petrolini, Lorenzo Capriotti, Olivier Deschamps, Eleonora Luppi, Wojciech Krzemien, Simone Bifani, Giovanni Cavallero, Timofei Maltsev, Pietro Marino, Roberto Calabrese, Tadeusz Lesiak, David Gascon, Victor Daussy-Renaudin, Maria Vieites Diaz, Suzanne Klaver, Daniel Craik, Laurent Dufour, Arantza Oyanguren, Vincent Tisserand, Claire Prouve, Stefano Perazzini, Juan José Saborido Silva, Agnieszka Dziurda, and Vladimir Gligorov

Subjects
Physics, Nuclear physics, Particle physics, Large Hadron Collider, Luminosity (scattering theory), 010308 nuclear & particles physics, Branching fraction, 0103 physical sciences, General Physics and Astronomy, 010306 general physics, 01 natural sciences, Standard Model
Abstract

A search for the rare decays B0s→μ+μ− and B0→μ+μ− is performed at the LHCb experiment using data collected in pp collisions corresponding to a total integrated luminosity of 4.4 fb−1. An excess of B0s→μ+μ− decays is observed with a significance of 7.8 standard deviations, representing the first observation of this decay in a single experiment. The branching fraction is measured to be B(B0s→μ+μ−)=(3.0±0.6+0.3−0.2)×10−9, where the first uncertainty is statistical and the second systematic. The first measurement of the B0s→μ+μ− effective lifetime, τ(B0s→μ+μ−)=2.04±0.44±0.05 ps, is reported. No significant excess of B0→μ+μ− decays is found and a 95 % confidence level upper limit, B(B0→μ+μ−)

Published
2017

27. Observation of the decay Bs0→ϕπ+π− and evidence for B0→ϕπ+π−

Author

Riccardo Cenci, Barak Raimond Gruberg Cazon, Michael Joseph Morello, Dmytro Melnychuk, Patrick Koppenburg, Ana Trisovic, Heather Wark, Sheldon Stone, Dmitry Golubkov, Andrea Contu, Melissa Maria Cruz Torres, Karlis Dreimanis, Sergii Kandybei, Eluned Smith, Marina Artuso, Chris Burr, Maurizio Martinelli, Stephan Eisenhardt, Olaf Steinkamp, Agnieszka Oblakowska-Mucha, Lluís Garrido Beltran, Ivan Belyaev, Antonio Romero Vidal, Giovanni Passaleva, Fergus Wilson, Victor Egorychev, Konrad Klimaszewski, Artur Ukleja, Elnur Sadykhov, Yanxi Zhang, Elena Graverini, Angelo Di Canto, Mariusz Witek, Kazuyoshi Carvalho Akiba, Federico Betti, Andrea Mauri, Clara Matteuzzi, Alessandro Pistone, Alexandru Tudor Grecu, Patrick Haworth Owen, Olivier Leroy, Gabriele Simi, Alexander Bitadze, Heinrich Schindler, Shanzhen Chen, Francesca Dordei, Marcello Rotondo, Sergey Filippov, Johannes Albrecht, Olivier Schneider, Jeroen Van Tilburg, Jinlin Fu, Michael Alexander, Paula Alvarez Cartelle, Matthew Kenzie, Irina Nasteva, Marco Cattaneo, Simone Stracka, Diego Martinez Santos, Zhenwei Yang, Cristina Lazzeroni, Pablo Vázquez Regueiro, Philip Ilten, Nicola Serra, Diego Tonelli, Andrei Tsaregorodtsev, Nigel Watson, Evelina Gersabeck, Victor Coco, Massimiliano Fiorini, Anton Poluektov, Mitesh Patel, Christoph Frei, Wojciech Wislicki, Marcin Kucharczyk, Murilo Rangel, Flavio Archilli, Mick Mulder, Biplab Dey, Sam Cunliffe, Giovanni Punzi, Maxime Schubiger, Marta Calvi, Fernando Martinez Vidal, Illya Shapoval, Claudio Gotti, Francesco Dettori, Ricardo Graciani Diaz, Antonino Sergi, Abraham Antonio Gallas Torreira, Celestina Satriano, Paolo Gandini, Justine Serrano, Michele Veltri, Marek Idzik, Jean-François Marchand, David Hutchcroft, Paul Seyfert, Bogdan Popovici, Frédéric Blanc, Renaud Le Gac, Michael Wilkinson, Tom Hadavizadeh, Maxim Borisyak, Jeremy Dalseno, Régis Lefèvre, Alexey Dzyuba, Eduardo Rodrigues, GIULIA MANCA, Rosen Matev, Matthew Needham, Alexander Bondar, Karim Trabelsi, Franco Bedeschi, Jolanta Brodzicka, Domenico Galli, Alessandro Cardini, Thomas Latham, Eduardo Picatoste, Claudia Patrignani, Eric Cogneras, Tomasz Fiutowski, Mark Williams, Ricardo Vazquez Gomez, Miriam Calvo Gomez, Albert Comerma, Miroslaw Firlej, Conor Fitzpatrick, Xabier Cid Vidal, Luis Miguel Garcia Martin, Tomasz Szumlak, Themistocles Bowcock, Gianmaria Collazuol, Marco Santimaria, Alison Tully, Gerhard Raven, Mirco Dorigo, Stéphane T'Jampens, Paolo Carniti, Ulrik Egede, Jakub Moron, Michael Schmelling, Giulio Dujany, Federico Redi, Oliver Lupton, Antonio Augusto Alves Junior, Pieter David, Carlos Vázquez Sierra, Adriano Lai, Fernando Rodrigues, Manuel Tobias Schiller, Giampiero Mancinelli, Albert Puig Navarro, Lars Eklund, Jacco De Vries, Stanislav Poslavsky, Jairo Alexis Rodriguez L, Paul Soler, Cibrán Santamarina Ríos, Leandro De Paula, Eugeni Graugés, Sevda Esen, George Lafferty, Máximo Pló Casasús, Gloria Corti, Konstantin Belous, Michel De Cian, Edgar Lemos Cid, Roberta Cardinale, Carla Marin Benito, Dominik Stefan Mitzel, Chris Parkes, Gerco Onderwater, Alessandro Petrolini, Lorenzo Capriotti, Olivier Deschamps, Eleonora Luppi, Wojciech Krzemien, Simone Bifani, Giovanni Cavallero, Timofei Maltsev, Pietro Marino, Roberto Calabrese, Tadeusz Lesiak, David Gascon, Victor Daussy-Renaudin, Maria Vieites Diaz, Suzanne Klaver, Daniel Craik, Laurent Dufour, Arantza Oyanguren, Vincent Tisserand, Claire Prouve, Stefano Perazzini, Juan José Saborido Silva, Agnieszka Dziurda, and Vladimir Gligorov

Subjects
Physics, 010308 nuclear & particles physics, 0103 physical sciences, Atomic physics, 010306 general physics, 01 natural sciences
Published
2017

28. Les ddterminants de la qualitt relationnelle des banques islamiques : visionnage par cartes cognitives (The Determiners of the Relational Quality of Islamic Banks: Visionnage by Cognitive Maps)

Author

Imen Abdennadher Gdoura, Tarek Abdellatif, and Karim Trabelsi

Subjects
media_common.quotation_subject, Quality (business), Islam, Sociology, Humanities, Religious Ethics, media_common
Abstract

French Abstract: Cette etude tente d’explorer les particularites relationnelles dans une banque islamique specifiquement en termes des influences des determinants de la qualite relationnelle dans les banques islamiques. La methodologie a ete basee sur une etude exploratoire qualitative realisee aux pres 22 experts. On a utilise la modelisation par les cartes cognitives en realisant une analyse structurelle des influences des determinants de la qualite relationnelle dans les banques islamiques par la methode« Matrice d’Impacts Croises – Multiplication Appliquee a un Classement » en utilisant le logiciel MICMAC. Cette recherche met l’accent sur l’importance: de l'ethique religieuse islamique et la satisfaction comme variables motrices et la confiance comme variable relai de la qualite relationnel dans les banques islamique. English Abstract: This study tries to explore the relational features in a specifically Islamic bank in terms of influences of the determinants of relational quality. The methodology is based on a quantitative exploratory study in the near 22 experts. Modeling was used by the cognitive maps by performing a structural analysis of the influences of the determinants of the quality of relationships in Islamic banks by the method "Cross-Impact Matrix - Multiplication Applied to a ranking" using the MICMAC software. This research emphasizes the importance of Islamic religious ethics and satisfaction as driving variables and confidence as variable relay the relational quality in Islamic banks.

Published
2017

29. Study of Bc+ decays to the K+K−π+ final state and evidence for the decay Bc+→χc0π+

Author

Riccardo Cenci, Barak Raimond Gruberg Cazon, Michael Joseph Morello, Dmytro Melnychuk, Patrick Koppenburg, Ana Trisovic, Heather Wark, Sheldon Stone, Dmitry Golubkov, Andrea Contu, Melissa Maria Cruz Torres, Samuel Coquereau, Sergii Kandybei, Eluned Smith, Marina Artuso, Chris Burr, Maurizio Martinelli, Stephan Eisenhardt, Olaf Steinkamp, Lluís Garrido Beltran, Ivan Belyaev, Antonio Romero Vidal, Giovanni Passaleva, Fergus Wilson, Victor Egorychev, Konrad Klimaszewski, Artur Ukleja, Elnur Sadykhov, Yanxi Zhang, Elena Graverini, Angelo Di Canto, Mariusz Witek, Kazuyoshi Carvalho Akiba, Federico Betti, Andrea Mauri, Clara Matteuzzi, Alessandro Pistone, Alexandru Tudor Grecu, Patrick Haworth Owen, Olivier Leroy, Gabriele Simi, Alexander Bitadze, Heinrich Schindler, Shanzhen Chen, Francesca Dordei, Marcello Rotondo, Sergey Filippov, Johannes Albrecht, Olivier Schneider, Jeroen Van Tilburg, Jinlin Fu, Michael Alexander, Paula Alvarez Cartelle, Matthew Kenzie, Irina Nasteva, Marco Cattaneo, Simone Stracka, Diego Martinez Santos, Zhenwei Yang, Cristina Lazzeroni, Pablo Vázquez Regueiro, Philip Ilten, Nicola Serra, Diego Tonelli, Andrei Tsaregorodtsev, Nigel Watson, Evelina Gersabeck, Victor Coco, Massimiliano Fiorini, Anton Poluektov, Mitesh Patel, Christoph Frei, Wojciech Wislicki, Murilo Rangel, Flavio Archilli, Mick Mulder, Biplab Dey, Sam Cunliffe, Giovanni Punzi, Maxime Schubiger, Marta Calvi, Fernando Martinez Vidal, Illya Shapoval, Claudio Gotti, Francesco Dettori, Ricardo Graciani Diaz, Antonino Sergi, Abraham Antonio Gallas Torreira, Celestina Satriano, Paolo Gandini, Justine Serrano, Michele Veltri, Marek Idzik, Jean-François Marchand, David Hutchcroft, Paul Seyfert, Bogdan Popovici, Frédéric Blanc, Renaud Le Gac, Michael Wilkinson, Nicola Neri, Tom Hadavizadeh, Maxim Borisyak, Jeremy Dalseno, Régis Lefèvre, Alexey Dzyuba, Eduardo Rodrigues, GIULIA MANCA, Rosen Matev, Matthew Needham, Alexander Bondar, Karim Trabelsi, Franco Bedeschi, Jolanta Brodzicka, Domenico Galli, Alessandro Cardini, Thomas Latham, Eduardo Picatoste, Claudia Patrignani, Eric Cogneras, Tomasz Fiutowski, Mark Williams, Ricardo Vazquez Gomez, Miriam Calvo Gomez, Albert Comerma, Miroslaw Firlej, Conor Fitzpatrick, Xabier Cid Vidal, Luis Miguel Garcia Martin, Tomasz Szumlak, Themistocles Bowcock, Gianmaria Collazuol, Michael Winn, Marco Santimaria, Alison Tully, Gerhard Raven, Mirco Dorigo, Stéphane T'Jampens, Paolo Carniti, Ulrik Egede, Igor Gorelov, Jakub Moron, Michael Schmelling, Giulio Dujany, Federico Redi, Oliver Lupton, Antonio Augusto Alves Junior, Pieter David, Carlos Vázquez Sierra, Adriano Lai, Fernando Rodrigues, Manuel Tobias Schiller, Giampiero Mancinelli, Albert Puig Navarro, Lars Eklund, Jacco De Vries, Jairo Alexis Rodriguez L, Paul Soler, Cibrán Santamarina Ríos, Leandro De Paula, Eugeni Graugés, Sevda Esen, George Lafferty, Máximo Pló Casasús, Gloria Corti, Konstantin Belous, Michel De Cian, Edgar Lemos Cid, Roberta Cardinale, Carla Marin Benito, Dominik Stefan Mitzel, Chris Parkes, Gerco Onderwater, Lorenzo Capriotti, Concezio Bozzi, Olivier Deschamps, Eleonora Luppi, Wojciech Krzemien, Simone Bifani, Giovanni Cavallero, Timofei Maltsev, Pietro Marino, Roberto Calabrese, Tadeusz Lesiak, David Gascon, Victor Daussy-Renaudin, Maria Vieites Diaz, Suzanne Klaver, Valery Pugatch, Daniel Craik, Laurent Dufour, Arantza Oyanguren, Vincent Tisserand, Claire Prouve, Stefano Perazzini, Juan José Saborido Silva, Agnieszka Dziurda, and Vladimir Gligorov

Subjects
Physics, Luminosity (scattering theory), Annihilation, Meson, 010308 nuclear & particles physics, Branching fraction, Generator (category theory), Analytical chemistry, State (functional analysis), 01 natural sciences, 0103 physical sciences, Pi, Atomic physics, 010306 general physics
Abstract

A study of B+c→K+K−π+ decays is performed for the first time using data corresponding to an integrated luminosity of 3.0 fb−1 collected by the LHCb experiment in pp collisions at centre-of-mass energies of 7 and 8 TeV. Evidence for the decay B+c→χc0(→K+K−)π+ is reported with a significance of 4.0 standard deviations, resulting in the measurement of σ(B+c)σ(B+)×B(B+c→χc0π+) to be (9.8+3.4−3.0(stat)±0.8(syst))×10−6. Here B denotes a branching fraction while σ(B+c) and σ(B+) are the production cross-sections for B+c and B+ mesons. An indication of b¯c weak annihilation is found for the region m(K−π+)

Published
2016

30. Measurement of theBs0→Ds(*)+Ds(*)−branching fractions

Author

Riccardo Cenci, Michael Joseph Morello, Dmytro Melnychuk, Patrick Koppenburg, Ana Trisovic, Sheldon Stone, Dmitry Golubkov, Andrea Contu, Melissa Maria Cruz Torres, Samuel Coquereau, Sergii Kandybei, Eluned Smith, Marina Artuso, Chris Burr, Cédric Potterat, Maurizio Martinelli, Stephan Eisenhardt, Olaf Steinkamp, Lluís Garrido Beltran, Roger Barlow, Ivan Belyaev, Antonio Romero Vidal, Giovanni Passaleva, Fergus Wilson, Victor Egorychev, Konrad Klimaszewski, Artur Ukleja, Yanxi Zhang, Elena Graverini, Angelo Di Canto, Mariusz Witek, Kazuyoshi Carvalho Akiba, Valentin Niess, Andrea Mauri, Clara Matteuzzi, Alessandro Pistone, Alexandru Tudor Grecu, Patrick Haworth Owen, Olivier Leroy, Gabriele Simi, Heinrich Schindler, Shanzhen Chen, Francesca Dordei, Marcello Rotondo, Sergey Filippov, Johannes Albrecht, Olivier Schneider, Jeroen Van Tilburg, Jinlin Fu, Michael Alexander, Paula Alvarez Cartelle, Matthew Kenzie, Irina Nasteva, Marco Cattaneo, Simone Stracka, Diego Martinez Santos, Stefano De Capua, Zhenwei Yang, Cristina Lazzeroni, Pablo Vázquez Regueiro, Philip Ilten, Nicola Serra, Diego Tonelli, Andrei Tsaregorodtsev, Nigel Watson, Evelina Gersabeck, Victor Coco, Massimiliano Fiorini, Anton Poluektov, Mitesh Patel, Christoph Frei, Wojciech Wislicki, Murilo Rangel, Flavio Archilli, Biplab Dey, Sam Cunliffe, Giovanni Punzi, Maxime Schubiger, Marta Calvi, Fernando Martinez Vidal, Illya Shapoval, Claudio Gotti, Francesco Dettori, Ricardo Graciani Diaz, Antonino Sergi, Abraham Antonio Gallas Torreira, Celestina Satriano, Paolo Gandini, Justine Serrano, Michele Veltri, Marek Idzik, Jean-François Marchand, David Hutchcroft, Paul Seyfert, Bogdan Popovici, Frédéric Blanc, Renaud Le Gac, Michael Wilkinson, Nicola Neri, Osvaldo Aquines, Tom Hadavizadeh, Maxim Borisyak, Jeremy Dalseno, Régis Lefèvre, Alexey Dzyuba, Eduardo Rodrigues, GIULIA MANCA, Rosen Matev, Matthew Needham, Alexander Bondar, Karim Trabelsi, Franco Bedeschi, Jolanta Brodzicka, Domenico Galli, Alessandro Cardini, Thomas Latham, Eduardo Picatoste, Claudia Patrignani, Eric Cogneras, Nicholas Brook, Tomasz Fiutowski, Mark Williams, Lucio Anderlini, Ricardo Vazquez Gomez, Miriam Calvo Gomez, Albert Comerma, Miroslaw Firlej, Conor Fitzpatrick, Xabier Cid Vidal, Tomasz Szumlak, Themistocles Bowcock, Gianmaria Collazuol, Marco Santimaria, Gerhard Raven, Mirco Dorigo, Stéphane T'Jampens, Paolo Carniti, Ulrik Egede, Jakub Moron, Michael Schmelling, Giulio Dujany, Federico Redi, Oliver Lupton, Antonio Augusto Alves Junior, Pieter David, Carlos Vázquez Sierra, Adriano Lai, Fernando Rodrigues, Manuel Tobias Schiller, Giampiero Mancinelli, Albert Puig Navarro, Lars Eklund, Jacco De Vries, Jairo Alexis Rodriguez L, Paul Soler, Cibrán Santamarina Ríos, Leandro De Paula, Eugeni Graugés, Sevda Esen, George Lafferty, Máximo Pló Casasús, Gloria Corti, Michel De Cian, Edgar Lemos Cid, Roberta Cardinale, Carla Marin Benito, Dominik Stefan Mitzel, Chris Parkes, Gerco Onderwater, Barbara Storaci, Alessandro Petrolini, Lorenzo Capriotti, Concezio Bozzi, Olivier Deschamps, Eleonora Luppi, Wojciech Krzemien, Simone Bifani, Giovanni Cavallero, Pietro Marino, Roberto Calabrese, Tadeusz Lesiak, David Gascon, Victor Daussy-Renaudin, Maria Vieites Diaz, Suzanne Klaver, Valery Pugatch, Daniel Craik, Laurent Dufour, Arantza Oyanguren, Vincent Tisserand, Alessandro Mapelli, Claire Prouve, Stefano Perazzini, Juan José Saborido Silva, Agnieszka Dziurda, and Vladimir Gligorov

Subjects
Nuclear physics, Physics, 010308 nuclear & particles physics, 0103 physical sciences, 010306 general physics, 01 natural sciences
Published
2016

31. Observation of Λ b 0 → ψ(2S)pK− and Λ b 0 → J/ψπ + π −pK− decays and a measurement of the Λ b 0 baryon mass

Author

Riccardo Cenci, Michael Joseph Morello, Dmytro Melnychuk, Patrick Koppenburg, Ana Trisovic, Sheldon Stone, Dmitry Golubkov, Andrea Contu, Melissa Maria Cruz Torres, Samuel Coquereau, Sergii Kandybei, Eluned Smith, Marina Artuso, Chris Burr, Cédric Potterat, Maurizio Martinelli, Stephan Eisenhardt, Olaf Steinkamp, Lluís Garrido Beltran, Roger Barlow, Ivan Belyaev, Antonio Romero Vidal, Giovanni Passaleva, Fergus Wilson, Victor Egorychev, Konrad Klimaszewski, Artur Ukleja, Yanxi Zhang, Elena Graverini, Angelo Di Canto, Mariusz Witek, Kazuyoshi Carvalho Akiba, Valentin Niess, Federico Betti, Andrea Mauri, Clara Matteuzzi, Alessandro Pistone, Alexandru Tudor Grecu, Patrick Haworth Owen, Olivier Leroy, Gabriele Simi, Heinrich Schindler, Shanzhen Chen, Francesca Dordei, Marcello Rotondo, Sergey Filippov, Johannes Albrecht, Olivier Schneider, Jeroen Van Tilburg, Jinlin Fu, Michael Alexander, Paula Alvarez Cartelle, Matthew Kenzie, Irina Nasteva, Marco Cattaneo, Simone Stracka, Diego Martinez Santos, Stefano De Capua, Zhenwei Yang, Cristina Lazzeroni, Pablo Vázquez Regueiro, Philip Ilten, Nicola Serra, Diego Tonelli, Andrei Tsaregorodtsev, Nigel Watson, Evelina Gersabeck, Victor Coco, Massimiliano Fiorini, Anton Poluektov, Mitesh Patel, Christoph Frei, Wojciech Wislicki, Murilo Rangel, Flavio Archilli, Biplab Dey, Sam Cunliffe, Giovanni Punzi, Maxime Schubiger, Marta Calvi, Fernando Martinez Vidal, Illya Shapoval, Claudio Gotti, Francesco Dettori, Ricardo Graciani Diaz, Antonino Sergi, Abraham Antonio Gallas Torreira, Celestina Satriano, Paolo Gandini, Justine Serrano, Michele Veltri, Marek Idzik, Jean-François Marchand, David Hutchcroft, Paul Seyfert, Bogdan Popovici, Frédéric Blanc, Renaud Le Gac, Michael Wilkinson, Nicola Neri, Osvaldo Aquines, Tom Hadavizadeh, Maxim Borisyak, Jeremy Dalseno, Régis Lefèvre, Alexey Dzyuba, Eduardo Rodrigues, GIULIA MANCA, Rosen Matev, Matthew Needham, Martino Borsato, Alexander Bondar, Karim Trabelsi, Franco Bedeschi, Jolanta Brodzicka, Domenico Galli, Alessandro Cardini, Thomas Latham, Eduardo Picatoste, Claudia Patrignani, Eric Cogneras, Nicholas Brook, Tomasz Fiutowski, Mark Williams, Lucio Anderlini, Ricardo Vazquez Gomez, Miriam Calvo Gomez, Albert Comerma, Miroslaw Firlej, Conor Fitzpatrick, Xabier Cid Vidal, Tomasz Szumlak, Themistocles Bowcock, Gianmaria Collazuol, Marco Santimaria, Gerhard Raven, Mirco Dorigo, Stéphane T'Jampens, Paolo Carniti, Ulrik Egede, Jakub Moron, Michael Schmelling, Giulio Dujany, Federico Redi, Oliver Lupton, Antonio Augusto Alves Junior, Pieter David, Carlos Vázquez Sierra, Adriano Lai, Fernando Rodrigues, Manuel Tobias Schiller, Giampiero Mancinelli, Albert Puig Navarro, Lars Eklund, Jacco De Vries, Jairo Alexis Rodriguez L, Paul Soler, Cibrán Santamarina Ríos, Leandro De Paula, Eugeni Graugés, Sevda Esen, George Lafferty, Máximo Pló Casasús, Gloria Corti, Michel De Cian, Edgar Lemos Cid, Roberta Cardinale, Carla Marin Benito, Dominik Stefan Mitzel, Chris Parkes, Gerco Onderwater, Barbara Storaci, Lorenzo Capriotti, Concezio Bozzi, Olivier Deschamps, Eleonora Luppi, Wojciech Krzemien, Simone Bifani, Giovanni Cavallero, Pietro Marino, Roberto Calabrese, Tadeusz Lesiak, David Gascon, Victor Daussy-Renaudin, Maria Vieites Diaz, Suzanne Klaver, Valery Pugatch, Daniel Craik, Laurent Dufour, Arantza Oyanguren, Vincent Tisserand, Alessandro Mapelli, Claire Prouve, Stefano Perazzini, Juan José Saborido Silva, Agnieszka Dziurda, and Vladimir Gligorov

Subjects
Physics, Baryon, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, 0103 physical sciences, Pi, High Energy Physics::Experiment, 010306 general physics, Lambda, 01 natural sciences
Abstract

The decays $ \Lambda_b^0 \to \psi(2S)pK^-$ and $ \Lambda_b^0 \to J/\psi \pi^+ \pi^- pK^-$ are observed in a data sample corresponding to an integrated luminosity of 3fb$^{-1}$, collected in proton-proton collisions at 7 and 8TeV centre-of-mass energies by the LHCb detector. The $\psi(2S)$ mesons are reconstructed through the decay modes $\psi(2S)\to\mu^+\mu^-$ and $\psi(2S)\to J/\psi\pi^+\pi^-$. The branching fractions relative to that of $ \Lambda_b^0 \to J/\psi pK^-$ are measured to be \begin{eqnarray*} \frac{\mathcal{B}(\Lambda_b^0 \to \psi(2S) pK^-)} {\mathcal{B}(\Lambda_b^0 \to J/\psi pK^-)} & = & (20.70\pm 0.76\pm 0.46\pm 0.37)\times10^{-2} \,, \frac{\mathcal{B}(\Lambda_b^0 \to J/\psi \pi^+ \pi^- pK^-)} {\mathcal{B}(\Lambda_b^0 \to J/\psi pK^-)} & = & (20.86\pm 0.96\pm 1.34)\times10^{-2} \,, \end{eqnarray*} where the first uncertainties are statistical, the second are systematic and the third is related to the knowledge of $J/\psi$ and $\psi(2S)$ branching fractions. The mass of the $\Lambda_b^0$ baryon is measured to be $$ M(\Lambda_b^0) = 5619.65 \pm 0.17 \pm 0.17\mathrm{MeV}/c^2,$$ where the uncertainties are statistical and systematic.

Published
2016

32. L'asymétrie du pouvoir dans les alliances stratégiques dyadiques : fondements et perspectives

Author

Karim Trabelsi

Abstract

Cet article analyse les alliances strategiques dyadiques a la lumiere du concept de pouvoir. Suite a une enumeration des fondements de l’asymetrie du pouvoir dans les alliances sous l’angle theorique, nous montrons que malgre la capacite de la partie dominante d’imposer ses conditions a l’echange et ses choix strategiques, cette capacite n’est pas suivie d’effet des lors que la motivation a preserver la relation sur le long-terme plutot que la maximisation des benefices individuels a court-terme est plus forte, quand la confiance mutuelle prend fermement le pas sur l’opportunisme et lorsque la voie de la negociation integrative, plutot que distributive, est adoptee. Pour illustrer empiriquement ce choix, nous avons procede a des etudes de cas d’alliances tuniso-francaises qui ont corrobore et enrichi les postulats conceptuels avances.

Published
2012

33. A Post-Treatment of the Homogenization Method for Shape Optimization

Author

Karim Trabelsi and Olivier Pantz

Subjects
Mathematical optimization, Control and Optimization, Applied Mathematics, Composite number, Applied mathematics, Shape optimization, Minification, Material density, Post treatment, Microstructure, Homogenization (chemistry), Mathematics
Abstract

We propose an alternative to the classical post-treatment of the homogenization method for shape optimization. Rather than penalize the material density once the optimal composite shape is obtained (by the homogenization method) in order to produce a workable shape close to the optimal one, we macroscopically project the microstructure of the former through an appropriate procedure that roughly consists in laying the material along the directions of lamination of the composite. We have tested our approach in the framework of compliance minimization in two-dimensional elasticity. Numerical results are provided.

Published
2008

34. La confiance : la « plate-forme » de l'alliance stratégique

Author

Karim Trabelsi

Abstract

L’essor fulgurant qu’ont connues les alliances strategiques depuis plus de deux decennies a induit un accroissement exponentiel des recherches traitant de ce phenomene. En effet, plusieurs recherches, selon des optiques d’etudes diverses, ont emerge afin d’analyser ce phenomene. Maintes etudes ont ainsi permis de mettre en exergue le role central de la confiance en vue de favoriser une cooperation effective entre les partenaires.Dans ce contexte, nous proposons de mettre d’abord en lumiere les contours des concepts d’« alliance strategique » et de « confiance » emanant de la litterature. Ensuite, nous portons notre interet sur le lien entre confiance et apprentissage organisationnel. Puis, nous decrivons le processus a travers lequel la confiance pourrait etre « construite ».

Published
2007

35. Measurement of the branching fraction ratioB(Bc+→ψ(2S)π+)/B(Bc+→J/ψπ+)

Author

Riccardo Cenci, Michael Joseph Morello, Dmytro Melnychuk, Patrick Koppenburg, Ana Trisovic, Sheldon Stone, Dmitry Golubkov, Andrea Contu, Melissa Maria Cruz Torres, Samuel Coquereau, Sergii Kandybei, Eluned Smith, Marina Artuso, Cédric Potterat, Maurizio Martinelli, Stephan Eisenhardt, Olaf Steinkamp, Lluís Garrido Beltran, Roger Barlow, Ivan Belyaev, Antonio Romero Vidal, Giovanni Passaleva, Fergus Wilson, Victor Egorychev, Konrad Klimaszewski, Artur Ukleja, Yanxi Zhang, Elena Graverini, Angelo Di Canto, Mariusz Witek, Kazuyoshi Carvalho Akiba, Valentin Niess, Andrea Mauri, Clara Matteuzzi, Alessandro Pistone, Alessio Gianelle, Alexandru Tudor Grecu, Patrick Haworth Owen, Olivier Leroy, Gabriele Simi, Heinrich Schindler, Shanzhen Chen, Francesca Dordei, Marcello Rotondo, Sergey Filippov, Johannes Albrecht, Olivier Schneider, Jeroen Van Tilburg, Emanuele Santovetti, Pavel Krokovny, Jinlin Fu, Michael Alexander, Paula Alvarez Cartelle, Matthew Kenzie, Irina Nasteva, Marco Cattaneo, Simone Stracka, Giovanni Carboni, Diego Martinez Santos, Stefano De Capua, David Dossett, Zhenwei Yang, Cristina Lazzeroni, Pablo Vázquez Regueiro, Philip Ilten, Nicola Serra, Diego Tonelli, Andrei Tsaregorodtsev, Nigel Watson, Evelina Gersabeck, Victor Coco, Massimiliano Fiorini, Anton Poluektov, Mitesh Patel, Christoph Frei, Wojciech Wislicki, Alessio Sarti, Murilo Rangel, Flavio Archilli, Biplab Dey, Sam Cunliffe, Giovanni Punzi, Maxime Schubiger, Victor Fernandez, Fernando Martinez Vidal, Illya Shapoval, Claudio Gotti, Francesco Dettori, Ricardo Graciani Diaz, Abraham Antonio Gallas Torreira, Celestina Satriano, Paolo Gandini, Justine Serrano, Michele Veltri, Marek Idzik, Jean-François Marchand, David Hutchcroft, Paul Seyfert, Bogdan Popovici, Frédéric Blanc, Renaud Le Gac, Andrew McNab, Michael Wilkinson, Nicola Neri, Osvaldo Aquines, Tom Hadavizadeh, Jeremy Dalseno, Régis Lefèvre, Alexey Dzyuba, Eduardo Rodrigues, GIULIA MANCA, Rosen Matev, Matthew Needham, Alexander Bondar, Karim Trabelsi, Franco Bedeschi, Jolanta Brodzicka, Domenico Galli, Alessandro Cardini, Thomas Latham, Eduardo Picatoste, Claudia Patrignani, Eric Cogneras, Nicholas Brook, Tomasz Fiutowski, Mark Williams, Ricardo Vazquez Gomez, Miriam Calvo Gomez, Albert Comerma, Miroslaw Firlej, Conor Fitzpatrick, Xabier Cid Vidal, Tomasz Szumlak, Themistocles Bowcock, Gianmaria Collazuol, Marco Santimaria, Gerhard Raven, Mirco Dorigo, Stéphane T'Jampens, Paolo Carniti, Ulrik Egede, Jakub Moron, Michael Schmelling, Giulio Dujany, Federico Redi, Oliver Lupton, Antonio Augusto Alves Junior, Pieter David, Carlos Vázquez Sierra, Adriano Lai, Fernando Rodrigues, Manuel Tobias Schiller, Giampiero Mancinelli, Albert Puig Navarro, Lars Eklund, Jacco De Vries, Jairo Alexis Rodriguez L, Paul Soler, Cibrán Santamarina Ríos, Leandro De Paula, Eugeni Graugés, Sevda Esen, George Lafferty, Máximo Pló Casasús, Gloria Corti, Josue Danilo Molina Rodriguez, Michel De Cian, Roberta Cardinale, Carla Marin Benito, Dominik Stefan Mitzel, Chris Parkes, Gerco Onderwater, Barbara Storaci, Alessandro Petrolini, Lorenzo Capriotti, Concezio Bozzi, Olivier Deschamps, Eleonora Luppi, Simone Bifani, Giovanni Cavallero, Pietro Marino, Barbara Sciascia, Roberto Calabrese, Tadeusz Lesiak, David Gascon, Maria Vieites Diaz, Suzanne Klaver, Valery Pugatch, Daniel Craik, Laurent Dufour, Arantza Oyanguren, Vincent Tisserand, Alessandro Mapelli, Claire Prouve, Stefano Perazzini, Juan José Saborido Silva, Agnieszka Dziurda, and Vladimir Gligorov

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Branching fraction, Branching (polymer chemistry)
Abstract

Using pp collision data collected by LHCb at center-of-mass energies s=7TeV and 8 TeV, corresponding to an integrated luminosity of 3fb-1, the ratio of the branching fraction of the Bc+→ψ(2S)π+ decay relative to that of the Bc+→J/ψπ+ decay is measured to be 0.268±0.032(stat)±0.007(syst)±0.006(BF). The first uncertainty is statistical, the second is systematic, and the third is due to the uncertainties on the branching fractions of the J/ψ→μ+μ- and ψ(2S)→μ+μ- decays. This measurement is consistent with the previous LHCb result, and the statistical uncertainty is halved.

Published
2015

36. An a posteriori error estimator for shape optimization: application to EIT

Author

Olivier Pantz, Karim Trabelsi, Matteo Giacomini, Centre de Mathématiques Appliquées - Ecole Polytechnique (CMAP), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Institut Polytechnique des Sciences Avancées (IPSA), Shape reconstruction and identification (DeFI ), Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre de Mathématiques Appliquées - Ecole Polytechnique (CMAP), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)-Inria Saclay - Ile de France, and Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)

Subjects
History, Mathematical optimization, Estimator, Upper and lower bounds, Finite element method, Computer Science Applications, Education, Parameter identification problem, A priori and a posteriori, Shape optimization, [MATH.MATH-OC]Mathematics [math]/Optimization and Control [math.OC], Descent direction, Electrical impedance tomography, Algorithm, ComputingMilieux_MISCELLANEOUS, [MATH.MATH-NA]Mathematics [math]/Numerical Analysis [math.NA], Mathematics
Abstract

In this paper we account for the numerical error introduced by the Finite Element approximation of the shape gradient to construct a guaranteed shape optimization method. We present a goal-oriented strategy inspired by the complementary energy principle to construct a constant-free, fully-computable a posteriori error estimator and to derive a certified upper bound of the error in the shape gradient. The resulting Adaptive Boundary Variation Algorithm (ABVA) is able to identify a genuine descent direction at each iteration and features a reliable stopping criterion for the optimization loop. Some preliminary numerical results for the inverse identification problem of Electrical Impedance Tomography are presented.

Published
2015

37. Simultaneous shape, topology, and homogenized properties optimization

Author

Olivier Pantz and Karim Trabelsi

Subjects
Control and Optimization, Control and Systems Engineering, Topology, Computer Graphics and Computer-Aided Design, Homogenization (chemistry), Software, Computer Science Applications, Mathematics
Abstract

In this brief note, we present an approach that combines the three classical techniques in structural optimization, i.e. the boundary variation and the topological and the homogenization methods. As a first test of this method, we apply it to the compliance opti-mization in \(\mathbb{R}^{2}\).

Published
2006

38. MODELING OF A MEMBRANE FOR NONLINEARLY ELASTIC INCOMPRESSIBLE MATERIALS VIA GAMMA-CONVERGENCE

Author

Karim Trabelsi

Subjects
Integral representation, Membrane, Internal energy, Applied Mathematics, Hyperelastic material, Convergence (routing), Mathematical analysis, Limit (mathematics), Relaxation (approximation), Analysis, Incompressible material, Mathematics
Abstract

In this paper, we derive nonlinearly elastic membrane plate models for hyperelastic incompressible materials using Γ-convergence arguments. We obtain an integral representation of the limit two-dimensional internal energy owing to a result of singular functionals relaxation due to Ben Belgacem [6].

Published
2006

39. NONLINEARLY ELASTIC THIN PLATE MODELS FOR A CLASS OF OGDEN MATERIALS II: THE BENDING MODEL

Author

Karim Trabelsi

Subjects
Asymptotic analysis, Nonlinear system, Ogden, Applied Mathematics, Hyperelastic material, Finite strain theory, Mathematical analysis, Zero (complex analysis), Calculus, Bending, Function (mathematics), Analysis, Mathematics
Abstract

This paper is a sequel to Part I (Trabelsi [11]) in which a new two-dimensional membrane model was derived via a formal asymptotic procedure for a family of hyperelastic nonlinear materials proposed by Ciarlet and Geymonat whose stored energy function is polyconvex and becomes infinite when the determinant of the deformation gradient tends to zero, and can be adjusted to arbitrary Lamé constants. Here, we continue the asymptotic analysis by making legitimate assumptions on the data to produce an inextensional two-dimensional model.

Published
2005

40. Incompressible nonlinearly elastic thin membranes

Author

Karim Trabelsi

Subjects
Membrane, Hyperelastic material, Mathematical analysis, Convergence (routing), Compressibility, Relaxation (physics), Geometry, General Medicine, Limit (mathematics), Thin membrane, Incompressible material, Mathematics
Abstract

Nonlinearly elastic thin membrane models are derived for hyperelastic incompressible materials using Γ -convergence arguments. We obtain an integral representation of the limit two-dimensional energy owing to a result of singular functionals relaxation due to Ben Belgacem [ESAIM Control Optim. Calc. Var. 5 (2000) 71–85 (electronic)]. To cite this article: K. Trabelsi, C. R. Acad. Sci. Paris, Ser. I 340 (2005).

Published
2005

41. Nonlinear thin plate models for a family of Ogden materials

Author

Karim Trabelsi

Subjects
Nonlinear system, Pure mathematics, Ogden, Calculus, General Medicine, Mathematics
Abstract

Nonlinear two-dimensional thin plate models are derived via a formal asymptotic procedure due to Pantz, for a family of Ogden materials proposed by Ciarlet and Geymonat (C. R. Acad. Sci. Paris, Ser. II 295 (4) (1982) 423–426). These materials are more realistic than the Saint Venant–Kirchhoff material. As a consequence, the derived models generalize those obtained for this material. To cite this article: K. Trabelsi, C. R. Acad. Sci. Paris, Ser. I 337 (2003).

Published
2003

42. Non-existence of minimizers for a nonlinear membrane plate under compression

Author

Karim Trabelsi

Subjects
Nonlinear system, Plane (geometry), Compression (functional analysis), Mathematical analysis, Plate theory, Minimization problem, Existence theorem, General Medicine, Elasticity (physics), Arch, Mathematics
Abstract

The classical equations of a nonlinearly elastic membrane plate, made of Saint Venant–Kirchhoff material, have been justified by Fox et al. (Arch. Rational Mech. Anal. 124 (2) (1993) 157–199). We show that, under compression, the associated minimization problem admits no solution. The proof is based on a result of non-existence of minimizers of non-convex functionals due to Dacorogna and Marcellini (Arch. Rational Mech. Anal. 131 (4) (1995) 359–399). We generalize the application of their result from plane elasticity to membrane plates. To cite this article: K. Trabelsi, C. R. Acad. Sci. Paris, Ser. I 337 (2003).

Published
2003

43. Physics perspectives for the belle detector

Author

Karim Trabelsi

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Upgrade, Physics::Instrumentation and Detectors, Detector, Physics::Accelerator Physics, CP violation, High Energy Physics::Experiment, B meson, Atomic and Molecular Physics, and Optics
Abstract

We present the possible improvements for the sin 2φ1 determination and the preliminary results on searches for rare B meson decays which will be used in a next future for CP violation study. The perspectives for the accelerator and the possible upgrade of the detector are reported.

Published
2001

45. Construction of minimization sequences for shape optimization

Author

Karim Trabelsi, Olivier Pantz, Institut Polytechnique des Sciences Avancées (IPSA), Centre de Mathématiques Appliquées - Ecole Polytechnique (CMAP), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Shape reconstruction and identification (DeFI ), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)-Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre de Mathématiques Appliquées - Ecole Polytechnique (CMAP), and École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Mathematical optimization, Computer science, elastic structure, Composite number, post treatment method, 010103 numerical & computational mathematics, 01 natural sciences, Homogenization (chemistry), Composite structure, geometrical optimization, Lattice (order), computational geometry, Shape optimization, homogenization method, 0101 mathematics, [MATH]Mathematics [math], minimization sequences, ComputingMilieux_MISCELLANEOUS, shapes (structures), minimisation, Minimization problem, compliance minimization problem, 010101 applied mathematics, structural engineering, shape optimization, Minification, Shape analysis (digital geometry)
Abstract

In most shape optimization problems, the optimal solution does not belong to the set of genuine shapes but is a composite structure. The homogenization method consists in relaxing the original problem thereby extending the set of admissible structures to composite shapes. From the numerical viewpoint, an important asset of the homogenization method with respect to traditional geometrical optimization is that the computed optimal shape is quite independent from the initial guess (at least for the compliance minimization problem). Nevertheless, the optimal shape being a composite, a post-treatement is needed in order to produce an almost optimal non-composite (i.e. workable) shape. The classical approach consists in penalizing the intermediate densities of material, but the obtained result deeply depends on the underlying mesh used and the level of details is not controllable. In a previous work, we proposed a new post-treatement method for the compliance minimization problem of an elastic structure. The main idea is to approximate the optimal composite shape with a locally periodic composite and to build a sequence of genuine shapes converging toward this composite structure. This method allows us to balance the level of details of the final shape and its optimality. Nevertheless, it was restricted to particular optimal shapes, depending on the topological structure of the lattice describing the arrangement of the holes of the composite. In this article, we lift this restriction in order to extend our method to any optimal composite structure for the compliance minimization problem.

Published
2010

47. Charm Physics at Belle

Author

Karim Trabelsi

Subjects
Physics, Nuclear physics, Particle physics, Meson, Excited state, Continuum (design consultancy), D meson, Radiative decay, High Energy Physics::Experiment, B meson, Charm (quantum number), Resonance (particle physics)
Abstract

We present recent charm results from the Belle Collaboration: an updated study of double cc production in the e+e− continuum, the production of D meson excited states in B decays, measurements of DsJ resonance properties and its production in B decays and the observation of the radiative decay D0 → φγ.

Published
2004

48. Is Tsallis thermodynamics nonextensive?

Author

Mariappan Paranthaman, Luc Beaulieu, Bongsoo Kim, Francisco Cervera-Moreno, Lynn Boatner, Andrzej Olszewski, Massimiliano GIONA, Joseph Izen, Vladislav Pantuev, Robert Newby, Krzysztof Woźniak, Elżbieta Banaś, Shohei Nishida, Pavel Krokovny, Naoki Hayashi, Cefe Lopez, Alessandra Adrover, Michal Patrick Decowski, Alfred Forchel, Alice Bean, Flavio Seno, Steven Manly, Glenn Moloney, Marcos Pimenta, Naohito SAITO, Föhlisch Alexander, Masashi Yokoyama, Jose Sanchez-Dehesa, Karim Trabelsi, Zbigniew Natkaniec, Liaoyuan Dong, Javier Buceta, Jerzy Michalowski, Oleg Konovalov, Edward Hartouni, Gerald Brezesinski, Enzo Orlandini, Piotr Kapusta, Martin Sevior, Pavel Pakhlov, Antoni Planes, Eduard Vives, Alfred Shapere, Junji Haba, Takanori HARA, Maria Rozanska, Adam Trzupek, Jaime Alvarez-Muniz, Burt Holzman, Andrei Gritsan, Ado Jorio, Ryugo Hayano, Prafulla Kumar Behera, Stefano CERBELLI, Stephane Randoux, Klaus Hornberger, CONSTANZA RUBIO MICHAVILA, and Universitat de Barcelona

Subjects
Physics, Statistical Mechanics (cond-mat.stat-mech), Fluctuation theorem, H-theorem, Entropy (statistical thermodynamics), Tsallis entropy, Principle of maximum entropy, Tsallis statistics, Maximum entropy thermodynamics, General Physics and Astronomy, FOS: Physical sciences, Statistical mechanics, Mecànica estadística, Termodinàmica, Thermodynamics, Statistical physics, Condensed Matter - Statistical Mechanics
Abstract

Within the Tsallis thermodynamics' framework, and using scaling properties of the entropy, we derive a generalization of the Gibbs-Duhem equation. The analysis suggests a transformation of variables that allows standard thermodynamics to be recovered. Moreover, we also generalize Einstein's formula for the probability of a fluctuation to occur by means of the maximum statistical entropy method. The use of the proposed transformation of variables also shows that fluctuations within Tsallis statistics can be mapped to those of standard statistical mechanics., Comment: 4 pages, no figures, revised version, new title, accepted in PRL

Published
2001

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