New radiation-tolerant thin planar and 3D columnar n+^+ on p silicon pixel sensors

The High Luminosity upgrade of the CERN Large Hadron Collider (HL-LHC) calls for new high radiation-tolerant solid-state pixel sensors, capable of surviving irradiation fluences up to a few $10^{16}\\$\,n$_{\rm eq}$/cm$^2$ at $\sim3$\,cm from the interaction point. The INFN ATLAS-CMS joint research activity, in collaboration with Fondazione Bruno Kessler, is aiming at the development of thin n$^+$ on p type pixel sensors to be operated at the HL-LHC. The R\&D covers both planar and 3D pixel devices made with the Direct Wafer Bonding technique. The active thickness of the planar sensors studied in this paper is 100\,$\mu$m or 130\,$\mu$m, that of 3D sensors 130\,$\mu$m. First prototypes of hybrid modules, bump-bonded to the present CMS readout chips, have been characterized in beam tests. First results on their performance before and after irradiation are reported in this article

The SuperB silicon vertex tracker.

In the current design of the high luminosity SuperB asymmetric e+-e- collider, the center of mass boost is reduced with respect to BaBar and to ef\ufb01ciently perform the time-dependent measurements an improved vertex resolution is required. A vertex tracker based on the layout of the BaBar Silicon Vertex Tracker (SVT) with an additional innermost layer (Layer0) is a design that achieves such a tracking resolution, provided that the extra layer is placed at radius of 1.5 cm from the interaction point, its thickness is less than 1% X_0 and it is able to withstand a background rate of several MHz/cm^2. The different options for the Layer0 are reviewed, starting from the most technologically mature solution, a high resistivity short strip detector, describing then a small-pitch hybrid pixel detector and \ufb01nally presenting the most challenging proposal, based on CMOS MAPS

SuperB: A High-Luminosity Asymmetric e+ e- Super Flavor Factory. Conceptual Design Report.

The physics objectives of SuperB, an asymmetric electron-positron collider with a luminosity above 10^36/cm^2/s are described, together with the conceptual design of a novel low emittance design that achieves this performance with wallplug power comparable to that of the current B Factories, and an upgraded detector capable of doing the physics in the SuperB environment