[en] After making the usual model assumptions, the shape of the dsigma/dQ² distribution and the energy dependence and magnitude of the cross section were fit in order to determine the shape of the form factors for the reaction νd → μ^-pp. It is noted that one can also test the CVC hypothesis. The cross section is shown as a function of neutrino energy for the νn → μ^-p reaction. Also shown is the Q² dependence of the νn → μ^-p events

[en] Calcification and mineralization are fundamental physiological processes, yet the mechanisms of calcification, in trabecular bone and in calcified lesions in atherosclerotic calcification, are unclear. Recently, it was shown in in vitro experiments that vascular-derived mesenchymal stem cells can display self-organized calcified patterns. These patterns were attributed to activator/inhibitor dynamics in the style of Turing, with bone morphogenetic protein 2 acting as an activator, and matrix GLA protein acting as an inhibitor. Motivated by this qualitative activator-inhibitor dynamics, we employ a prototype Gierer-Meinhardt model used in the context of activator-inhibitor-based biological pattern formation. Through a detailed analysis in one and two spatial dimensions, we explore the pattern formation mechanisms of steady state patterns, including their dependence on initial conditions. These patterns range from localized holes to labyrinths and localized peaks, or in other words, from dense to sparse activator distributions (respectively). We believe that an understanding of the wide spectrum of activator-inhibitor patterns discussed here is prerequisite to their biochemical control. The mechanisms of pattern formation suggest therapeutic strategies applicable to bone formation in atherosclerotic lesions in arteries (where it is pathological) and to the regeneration of trabecular bone (recapitulating normal physiological development)

[en] This Letter presents the x and y distributions of events with visible strange particles produced in charged-current nu-barp interactions. It is shown that charmed-particle production via the process nu-bar/sub μ/s-bar→μ⁺c-bar is required. Using a simple model, we obtain, for the proton, ∫xs-bar(x)dx=0.007 +- 0.002 and ∫xs-bar(x)dx/∫xu(x)dx=0.019 +- 0.006 in the kinematic region 0.05< x< or =0.8 and 0.1< y< or =0.8. Moreover, these observations require a significant left-handed component for the (/sup c//sub s/) doublet

[en] We have measured response maps of the CDF central electromagnetic calorimeter with a 50 GeV electron beam. We present the results of these measurements in terms of the similarity and uniformity module-to-module and tower-to-tower. We derive the uniformity correction functions applicable to all 48 calorimeter modules, ensuring uniformity at the 1% level. (orig.)

[en] Technical details and methods used in constructing the CDF silicon vertex detector are presented. This description includes a discussion of the foam-carbon fiber composite structure used to silicon microstrip detectors and the procedure for achievement of 5 μm detector alignment. The construction of the beryllium barrel structure, which houses the detector assemblies, is also described. In addition, the 10 μm placement accuracy of the detectors in the barrel structure is discussed and the detector cooling and mounting systems are described. 12 refs