Boosted objects and jet substructure at the LHC. Report of BOOST2012, held at IFIC Valencia, 23rd-27th of July 2012

This report of the BOOST2012 workshop presents the results of four working groups that studied key aspects of jet substructure. We discuss the potential of first-principle QCD calculations to yield a precise description of the substructure of jets and study the accuracy of state-of-the-art Monte Carlo tools. Limitations of the experiments' ability to resolve substructure are evaluated, with a focus on the impact of additional (pile-up) proton proton collisions on jet substructure performance in future LHC operating scenarios. A final section summarizes the lessons learnt from jet substructure analyses in searches for new physics in the production of boosted top quarks.

Instability of nonminimally coupled scalar fields in the spacetime of slowly rotating compact objects

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

O objeto transicional pode ser uma pessoa? teoria e clínica

The objective of this work is to answer the question posed in the title, based on the texts of D. W. Winnicott. To this effect we addressed the origins of the concept of transitional object in the author’s work, the chronology of its first appearances, direct references to the topic and a discussion of a clinical case. Winnicott rarely referred to a person as being another person’s transitional object, and when he did so, he situated this experience in the field of pathology, and when referring to it, used such terms as “comforter object”, “fetish object” and “regressive object”. In contrast, the concept of transitional object is linked to an experience indicative of mental health, of transition between fusion and mother-baby separation, and of the personal and symbolic use of objects of the sensory field. Maintaining this conceptual specificity enables us to discriminate nuances in the evolution of the use of material objects by the child, and helps to guide anamnesis, diagnosis and the therapeutic process.

Reflexões psicanalíticas winnicottianas sobre o sentido do silêncio no setting

We tried to analyze in this paper the meaning of silence into the analytical setting, based in Winnicott’s proposal of psychoanalysis and from clinical experience fragments of one the authors. Therefore, we surveyed the meaning of silence in the setting for some psychoanalysts and, afterwards, we made reference mainly to the concepts related to Winnicott’s Theory of the Emotional Maturity, such as holding, handling, the presentation of objects, and those concerning hesitation and transitionality. We further availed ourselves of the concepts of transference and count transference to ponder on the therapeutic dyad into the analytical setting. Our final considerations point to the need to consider silence as an important communication in certain circumstances of the therapeutic work, as well as suggesting that the setting, in this case study, requested hopeful non-invasive approach of the therapist, to allow the appearance of transitional space through which the emotional maturity can be resumed in this patient.