Présidents de session
HEP experiments
- Jerome Baudot (IPHC)
HEP experiments
- Leonardo Rossi (INFN Genova)
HEP experiments
- Serhiy SENYUKOV (Institut Pluridisciplinaire Hubert CURIEN (IPHC))
In the high-luminosity era of the Large Hadron Collider, the instantaneous luminosity is expected to reach unprecedented values, resulting in up to 200 proton-proton interactions in a typical bunch crossing. To cope with the resulting increase in occupancy, bandwidth and radiation damage, the ATLAS Inner Detector will be replaced by an all-silicon system, the Inner Tracker (ITk). The innermost...
The CMS pixel detector is the innermost part of the CMS tracking system. The performance of the detector is monitored closely with frequent calibrations to measure expected degradation due to radiation damage. The pixel tracker provides high quality data for physics despite the ongoing challenges of Run 3. The operational experience and performance of the pixel tracker during 2022, 2023, and...
The Belle~II experiment at the SuperKEKB super B-factory collects data from asymmetric-energy $e^+e^-$ collisions at the $\Upsilon(4S)$ resonance since 2019.
Its goal is to collect a $B\bar{B}$ data set 50 times larger than that of the predecessor experiments Belle and Babar enabling new levels of accuracy in measurement of standard model processes and search for new physics at the...
The need for increased computing keeps growing at ultra high speed, required to support an ever larger and wider range of applications, with generative AI significantly accelerating this trend. Logic standard cell shrinkage remains at the core of the compute roadmap. Its momentum is expected to carry on, even as 2D scaling has become increasingly challenging, by introducing novel device...
The upgraded Inner Tracking System (ITS2) is instrumental for tracking and vertex reconstruction in the ALICE experiment. The new tracker consists of seven cylindrical layers equipped with silicon Monolithic Active Pixel Sensors (MAPS) with a pixel size of 27 by 29 μm. The sensors are thinned down to a thickness of 50 μm and 100 µm for the three innermost layers and for the four outer layers,...
LHCb is a high precision experiment, operating at the LHC accelerator at CERN. The experiment is primarily devoted to the search for new physics beyond the Standard Model by studying CP violation and rare decays in the b and c-quark sectors. During the second long shutdown of the Large Hadron Collider at CERN, the LHCb experiment has been upgraded and the new detector is currently operating at...
The increased particle flux expected at the HL-LHC poses a serious challenge for the ATLAS detector performance, especially in the forward region which has reduced detector granularities. The High-Granularity Timing Detector (HGTD), featuring novel Low-Gain Avalanche Detector silicon technology, will provide pile-up mitigation and luminosity measurement capabilities, and augment the new...
A gaseous beam monitor utilizing gas electron multiplier (GEM) and pixel sensors is being developed for the Cooling Storage Ring (CSR) external-target experiment (CEE) at Heavy Ion Research Facility in Lanzhou (HIRFL). The beam monitor is mainly used to track each beam particle, providing an accurate reconstruction of the primary vertex of the collision. Two generations of the pixel sensors...
The Inner Tracking System 3 (ITS3) is the next generation vertex detector for ALICE, the heavy-ion focused experiment at the CERN Large Hadron Collider foreseen to be installed during the Long Shut- down 3. The ITS3 will replace the innermost three layers of the current Inner Tracking System 2. ITS3 will consist of bent, wafer-scale monolithic pixel sensors manufactured in the TPSCo 65 nm...
The Belle II experiment currently records data at the SuperKEKB e+e- collider, which holds the world luminosity record of 4.7x10^34 cm-2.s-1 and plans to push up to 6x10^35 cm-2 s-1. In such luminosity range for e+e- collisions, the inner detection layers should both cope with a hit rate dominated by beam-induced parasitic particles and provide minute tracking precision. A R&D program has...
Following in the footsteps of the LHC, the Future Circular Collider (FCC) will be the next multi-generational international collider project. In the first stage, FCC-ee will collide intense beams of electrons and positrons at centre of mass energies between 88 and 365 GeV, making it an electroweak, flavour, Higgs and top factory. The unprecedented statistical precision requires FCC-ee...
