Ultra-peripheral heavy ion collisions provide a unique opportunity to study the parton distributions in the colliding nuclei via the measurement of photo-nuclear jet production. An analysis of jet production in ultra-peripheral Pb+Pb collisions at √ s NN = 5.02 TeV performed using data collected with the ATLAS detector in 2015 is described. The data set corresponds to a total Pb+Pb integrated luminosity of 0.38 nb −1 . The ultra-peripheral collisions are selected using a combination of forward neutron and rapidity gap requirements. The cross-sections, not unfolded for detector response, are compared to results from Pythia Monte Carlo simulations re-weighted to match a photon spectrum obtained from the STARlight model. Qualitative agreement between data and these simulations is observed over a broad kinematic range suggesting that using these collisions to measure nuclear parton distributions is experimentally realisable.
Objective of the study: the main objective of the present study was to investigate the relationship between personality traits, life satisfaction, the perceived impact of the pandemic and the psychological suffering of Brazilian entrepreneurs.Methodology: 631 respondents (51% female) with a mean age of 39.34 years (SD = 10.75), from different Brazilian states. Entrepreneurs answered an online collection form that assessed their personality, psychological distress, life satisfaction, and questions about the perception of the pandemic.Originality/relevance: studies on the mental health of entrepreneurs are scarce, even in crisis situations, such as the covid-19 pandemic. This study sought to fill part of this gap.Main results: Structural equation modeling shows that personality traits and life satisfaction are directly associated with the psychological distress of entrepreneurs. The relationship between neuroticism, extraversion and conscientiousness and psychological distress was partially mediated by life satisfaction.Theoretical/methodological contributions: this study contributes to the identification of individual and social variables and the way they are associated in the prediction of psychological suffering, in major health crises, such as covid-19.Social /management contributions: the results of this study can be used by managers, entities, and support services for entrepreneurs in order to build policies and actions aimed at coping with medium and long-term emotional consequences, uncertainties and setbacks resulting from the pandemic. of covid-19 for the entrepreneur and his business.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.