The 2009 Europhysics Conference on High Energy Physics

The LHCb detector has been designed to study CP violation and other rare phenomena in B-meson decays up to a luminosity of $\sim 5.10^{32}\rm cm^{-2}s^{-1}$. We will describe the current limitations that prevent LHCb from exploiting the much higher luminosities available at the LHC, and what modifications can be made that allow data taking at an order of magnitude higher instantaneous...

With LHC about to start collisions, plans are advancing on detector upgrades necessary to cope with the scenario of the super-LHC collider, with ten-fold increase in the collision rate. The expected experimental conditions and the current detector studies, including an entirely new inner tracker system, are summarized. The detector technologies being considered for the upgrade of the Muon...

Following an expected increase of the LHC luminosity beyond its design value of 10^34 cm^-2s^-1 the CMS collaboration is planning for an upgrade of the experimental apparatus. In particular the silicon tracker should undergo a major rebuild to cope with the new ultimate luminosity of the upgraded collider (SLHC) which is foreseen to be a factor ten greater than the present limit. In these...

It is foreseen to significantly increase the luminosity of the Large Hadron Collider(LHC) at CERN around 2018 by upgrading the LHC towards the sLHC (Super-LHC). Due to the radiation damage to the silicon detectors used, the physics experiment will require new tracking detectors for sLHC operation. All-silicon central trackers are being studied in ATLAS, CMS and LHCb, with extremely radiation...

High-speed data transmission in a high radiation environment poses an immense challenge in the detector design. We investigate the feasibility of using optical links for the silicon trackers of the ATLAS experiment for the planned upgrade of the LHC. The planned upgrade with ten times higher collision rate will produce a similar increase in the radiation. One possibility for the optical...

A readout system for microstrip silicon sensors has been developed as a result of collaboration among the University of Liverpool, the CNM of Barcelona and the IFIC of Valencia. The name of this collaboration is ALIBAVA and it is integrated in the RD50 Collaboration. This system is able to measure the collected charge in one or two microstrip silicon sensors by reading out all the channels of...

The CALICE collaboration is developing calorimeters for use in the Particle Flow approach (PFA) to jet energy measurement in future particle accelerator experiments. A highly granular electromagnetic calorimeter is central to this program and two prototypes , based on two different technologies were consequently built. Both are sampling calorimeters: Silicon-Tungsten and...

A prototype of a highly granular CALICE scintillator-steel hadron calorimeter using SiPMs as photodetectors has been tested in electron and hadron beams at CERN and Fermilab in the energy range 1-80 GeV. More than 7600 SiPMs - the highest number ever used - performed well over a period longer than 2 years and did not show an increase of noise. The electron data were used to validate the...

A Time Projection Chamber (TPC) is a candidate for the central tracker of the future International Linear Collider (ILC) detectors. TPCs have already demonstrated very good performance in past collider experiments. However the tracking system of the ILC should have a very good track momentum resolution (delta(1/pt) ~ 5 10**-5 /GeV/c), which is an order of magnitude more precise than in...

The Tokai-to-Kamiokande (T2K) experiment is a second generation long baseline neutrino oscillation experiment which will start taking data at the end of 2009. A high intensity muon neutrino beam produced at the new JPARC proton accelerator complex at Tokai, Japan is aimed at the Super-Kamiokande detector which is 295 km away. The goals of the experiment include the precision measurement of the...

CMOS sensors of the MIMOSA (standing for Minimum Ionising particle MOS Active pixel sensor) series are developped at IPHC since a decade and have ended up with full scale devices used in beam telescopes and in demonstrators of future vertex detectors. The sensors deliver analogue, unfiltered, signals and are therefore limited to read-out frequencies of ~1 kframe/s. Since a few...

The STAR collaboration is preparing a tracking detector upgrade, the Heavy Flavor Tracker (HFT) and the Forward GEM Tracker (FGT) to further investigate fundamental properties of the new state of strongly interacting matter produced in relativistic-heavy ion collisions at RHIC and to provide fundamental studies of the proton spin structure and dynamics in high-energy polarized...