Observation of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi>B</mml:mi><mml:mi>s</mml:mi><mml:mn>0</mml:mn></mml:msubsup><mml:mo>→</mml:mo><mml:mi>J</mml:mi><mml:mo>/</mml:mo><mml:mi>ψ</mml:mi><mml:msup><mml:mi>K</mml:mi><mml:mo>*</mml:mo></mml:msup><mml:mo stretchy="false">(</mml:mo><mml:mn>892</mml:mn><mml:msup><mml:mo stretchy="false">)</mml:mo><mml:mn>0</mml:mn></mml:msup></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi>B</mml:mi><mml:mi>s</mml:mi><mml:mn>0</mml:mn></mml:msubsup><mml:mo>→</mml:mo><mml:mi>J</mml:mi><mml:mo>/</mml:mo><mml:mi>ψ</mml:mi><mml:msubsup><mml:mi>K</mml:mi><mml:mi>S</mml:mi><mml:mn>0</mml:mn></mml:msubsup></mml:math>decays

We report the first observation of two Cabibbo-suppressed decay modes of the Bs0 meson. Using a sample of pp̄ collisions at √s=1.96TeV corresponding to 5.9fb-1 of integrated luminosity collected with the CDF II, the collider detector at the Fermilab Tevatron, we search for new Bs0 decay modes in a sample of events containing J/ψ→μ+μ - decays. We reconstruct a Bs0→J/ψK*(892)0 signal with K*(892)0→K+π-, observing a yield of 151±25 events with a statistical significance of 8.0σ. We also reconstruct a Bs0→J/ψKS0 signal with KS0→π+π-, observing a yield of 64±14 events with a statistical significance of 7.2σ. From these yields, we extract the branching ratios B(Bs0→J/ψK*(892)0)=(8. 3±3.8)×10-5 and B(Bs0→J/ψK0)=(3.5±0.8) ×10-5, where statistical, systematic, and fragmentation- fraction uncertainties are included in the combined uncertainty. © 2011 American Physical Society

Measurement of the Bs0 lifetime in fully and partially reconstructed Bs0→Ds-(Φπ \u3csup\u3e-\u3c/sup\u3e)X decays in p̄p collisions at √s=1.96TeV

We present a measurement of the Bs0 lifetime in fully and partially reconstructed Bs0→Ds-(Φπ -)X decays in 1.3fb -1 collected in pp̄ collisions at √s=1.96TeV by the CDF II detector at the Fermilab Tevatron. We measure τ(Bs0)=1.518±0.041(stat)±0. 027(syst)ps. The ratio of this result and the world average B0 lifetime yields τ(Bs0)/τ(B0)=0.99±0.03, which is in agreement with recent theoretical predictions. © 2011 American Physical Society

Search for Randall-Sundrum gravitons in the diphoton channel at CDF

We report on a search for new particles in the diphoton channel using a data sample of p (p) over bar collisions at root s = 1.96 TeV collected by the CDF II detector at the Fermilab Tevatron, with an integrated luminosity of 5.4 fb(-1). The diphoton invariant mass spectrum of the data agrees well with the standard model expectation. We set upper limits on the production cross section times branching ratio for the Randall-Sundrum graviton, as a function of diphoton mass. We subsequently derive lower limits on the graviton mass of 459 GeV = c(2) and 963 GeV = c(2), at the 95% confidence level, for coupling parameters ( k/(M) over bar (Pl)) of 0.01 and 0.1, respectively

'It's either Maccas or uni': A Bourdieusian analysis of working-class youth in New Zealand

&lt;p&gt;School to work transitions is often presented as a binary choice. You either pursue a university education that is framed as a sure-fire pathway to both social and economic mobility, or you pursue a ‘lesser’ form of industrial and vocational training, with little of hope of advancement. However, this thesis argues that this assumption must be contested, as it obscures the complexity of all school to work transitions and the potential for social mobility in these ‘lesser’ forms of education. Through interviews with young men and women who are training as an apprentice or have recently completed their apprenticeship, this thesis hopes to provide a more complex snapshot of school to work transitions, focusing on how apprentices find and adapt to their new trade.  My overall argument centres on Bourdieu’s theory of practice which is often discussed concerning the specific class-based outcomes of education for students from different class conditions (Bourdieu 1977). While this approach is useful to showing the complexity of school to work transitions from supposedly ‘lesser’ pathways, this approach is overly reliant on habitus, presenting a type of individual agency that is primarily reproductive and non-conducive to any potential transformation. Instead of focusing on just habitus in understanding this transition, a greater emphasis is placed on Bourdieu’s concept of ‘field’. Specifically, how field conditions can influence both the degree and the type of agency within a field, presenting a more complicated conception of agency that can be simultaneously reproductive and transformative.&lt;/p&gt;</jats:p

'It's either Maccas or uni': A Bourdieusian analysis of working-class youth in New Zealand

&lt;p&gt;School to work transitions is often presented as a binary choice. You either pursue a university education that is framed as a sure-fire pathway to both social and economic mobility, or you pursue a ‘lesser’ form of industrial and vocational training, with little of hope of advancement. However, this thesis argues that this assumption must be contested, as it obscures the complexity of all school to work transitions and the potential for social mobility in these ‘lesser’ forms of education. Through interviews with young men and women who are training as an apprentice or have recently completed their apprenticeship, this thesis hopes to provide a more complex snapshot of school to work transitions, focusing on how apprentices find and adapt to their new trade.  My overall argument centres on Bourdieu’s theory of practice which is often discussed concerning the specific class-based outcomes of education for students from different class conditions (Bourdieu 1977). While this approach is useful to showing the complexity of school to work transitions from supposedly ‘lesser’ pathways, this approach is overly reliant on habitus, presenting a type of individual agency that is primarily reproductive and non-conducive to any potential transformation. Instead of focusing on just habitus in understanding this transition, a greater emphasis is placed on Bourdieu’s concept of ‘field’. Specifically, how field conditions can influence both the degree and the type of agency within a field, presenting a more complicated conception of agency that can be simultaneously reproductive and transformative.&lt;/p&gt;</jats:p

24. Commission des Parallaxes Stellaires et des Mouvements Propres

In November 1931 the President circulated a letter to the members of the Commission which in part was as follows:In view of the fact that it is now over a quarter of a century since Schlesinger by photography began to determine trigonometric parallaxes by a long focus telescope, and fifteen years since Adams and Kohlschütter derived the first spectroscopic parallaxes, it would seem appropriate to take stock of our present position and to make plans for future development.Will you be good enough, therefore, to furnish such statements concerning the following topics as are appropriate to the work of your observatory?</jats:p