Measurement of the branching fraction for the decay KS --> pi e nu

We present a measurement of the branching ratio BR(KS --> pi e nu) performed using the KLOE detector. KS mesons are produced in the reaction e+ e- --> phi --> KS KL at the DAFNE collider. In a sample of about 5 million KS-tagged events we find 624 +- 30 semileptonic KS decays. Normalizing to the KS --> pi+ pi- count in the same data sample, we obtain BR(KS --> pi e nu) = (6.91 +- 0.37) 10^-4, in agreement with the Standard Model expectation.Comment: 9 pages, 5 Encapsulated Postscript figures. Submitted to Phys. Lett.

Study of the Decay phi --> eta pi0 gamma with the KLOE detector

In a sample of 5.3x10^7 phi-decays observed with the KLOE detector at the Frascati phi-factory Dafne we find 605 eta pi0 gamma events with eta --> gamma\gamma and 197 eta pi0 gamma events with eta --> pi+ pi- pi0. The decay phi --> eta pi0 gamma is dominated by the process phi --> a0 gamma. From a fit to the eta pi0 mass spectrum we find BR(phi --> ao(980) gamma)= (7.4 +- 0.7)x10^-5.Comment: 12 pages, 6 figures, submitted to Phys.Lett.

Complicity and contestation in the gentrifying urban primary school.

The transformation of primary schools in gentrifying localities has sometimes been referred to as a form of ‘class colonisation’. This article draws on ethnographic research with teachers, teaching assistants, and parents in two inner-London primary schools to explore the largely unexamined role of school leaders (headteachers) in mediating gentrification processes within urban schools. It argues that institutional history, contexts of headship and leadership style all play an important role in negotiating and recontextualising middle-class mobilisation and power to re-shape primary schools. Headteachers’ relationship to gentrification is therefore not simply one of complicity, but often of contestation and conflict. This article therefore challenges understandings of gentrification as a hegemonic process, and contributes to a more nuanced picture of the educational consequences of gentrification, particularly the institutional realities and experiences of urban social change

The beam and detector of the NA62 experiment at CERN

NA62 is a fixed-target experiment at the CERN SPS dedicated to measurements of rare kaon decays. Such measurements, like the branching fraction of the K+ → π+ ν bar nu decay, have the potential to bring significant insights into new physics processes when comparison is made with precise theoretical predictions. For this purpose, innovative techniques have been developed, in particular, in the domain of low-mass tracking devices. Detector construction spanned several years from 2009 to 2014. The collaboration started detector commissioning in 2014 and will collect data until the end of 2018. The beam line and detector components are described together with their early performance obtained from 2014 and 2015 data

A call to engage: considering the role of gentrification in public health research

Unidad de excelencia María de Maeztu CEX2019-000940-MAs interest in incorporating gentrification into public health research grows, so too does the need for developing conceptual models and methods for understanding the role of dynamic processes such as gentrification in assessing neighborhood effects on health. This requires public health researchers to engage in ongoing active debates within the social sciences on the definition, causes and consequences of gentrification, going beyond the simple application of measurements borrowed or adapted from the social sciences. Having a stance on gentrification informs measurement, the research question, study design and the role of gentrification in quantitative models employed by public health researchers

Gentrification, displacement and the arts: Untangling the relationship between arts industries and place change

© 2016, © Urban Studies Journal Limited 2016. The arts have long played a role in debates around gentrification and displacement, yet their roles and impacts as change agents are not clear-cut. According to the standard account, artists facilitate gentrification and ultimately engender the displacement of lower income households, but more recent research complicates the accepted narrative. This article seeks to untangle the relationship between the arts, gentrification and displacement through a statistical study of neighbourhood-level arts industry activity within large US regions. The findings indicate that the standard arts-led gentrification narrative is too generalised or simply no longer applicable to contemporary arts-gentrification processes. Rather, the arts have multiple, even conflicting relationships with gentrification and displacement that depend on context and type of art. These results have important implications for how we study the role of the arts in neighbourhood change and for how governments approach the arts and creative industries in urban policy