A5100758469- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Computational Physics and Python Applications
- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Radiation Detection and Scintillator Technologies
- Medical Imaging Techniques and Applications
- Particle Accelerators and Free-Electron Lasers
- Distributed and Parallel Computing Systems
- Gamma-ray bursts and supernovae
- Nuclear reactor physics and engineering
- Atomic and Subatomic Physics Research
- CCD and CMOS Imaging Sensors
- Radiation Therapy and Dosimetry
- Optical properties and cooling technologies in crystalline materials
- Nuclear Physics and Applications
- Big Data Technologies and Applications
- International Science and Diplomacy
- Scientific Computing and Data Management
- Nuclear physics research studies
Institut Pluridisciplinaire Hubert Curien
2016-2025
Centre National de la Recherche Scientifique
2016-2025
Université de Strasbourg
2016-2025
Institute of High Energy Physics
2012-2024
University of Antwerp
2024
A. Alikhanyan National Laboratory
2024
Institut de Physique des 2 Infinis de Lyon
2023
Institute of Nuclear Physics of Lyon
2013-2023
Institut National de Physique Nucléaire et de Physique des Particules
2010-2022
Université de Haute-Alsace
2009-2022
This document is the final report of ATLAS-CMS Dark Matter Forum, a forum organized by ATLAS and CMS collaborations with participation experts on theories Matter, to select minimal basis set dark matter simplified models that should support design early LHC Run-2 searches. A prioritized, compact benchmark proposed, accompanied studies parameter space these repository generator implementations. also addresses how apply Effective Field Theory formalism for collider searches present results...
The CMS detector team describes their experiment and observation of decay products from a standard model Higgs boson, allowing its mass to be determined.
The CMS detector at the CERN LHC features a silicon pixel as its innermost subdetector. original has been replaced with an upgraded system (CMS Phase-1 detector) in extended year-end technical stop of 2016/2017. is designed to cope higher instantaneous luminosities that have achieved by after upgrades accelerator during first long shutdown 2013–2014. Compared detector, better tracking performance and lower mass four barrel layers three endcap disks on each side provide hit coverage up...
We explore scenarios where top quarks may be produced singly in association with missing energy, a very distinctive signature, which, analogy monojets, we dub monotops. find that monotops can variety of modes, typically characterized by baryon number-violating or flavorchanging neutral interactions. build simplified model encompasses all the possible (tree-level) production mechanisms and study LHC sensitiveness to few representative considering fully hadronic decays. constraints on such...
We investigate new physics scenarios where systems comprised of a single top quark accompanied by missing transverse energy, dubbed monotops, can be produced at the LHC. Following simplified model approach, we describe all possible monotop production modes via an effective theory and estimate sensitivity LHC, assuming $20\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ collisions center-of-mass energy 8 TeV, to observation state. Considering both leptonic hadronic decays, show that large...
The upgrade of the LHC to High-Luminosity (HL-LHC) is expected increase design luminosity by an order magnitude. This will require silicon tracking detectors with a significantly higher radiation hardness. CMS Tracker Collaboration has conducted irradiation and measurement campaign identify suitable sensor materials strip designs for future outer tracker at experiment. Based on these results, collaboration chosen use n-in-p type sensors focus further investigations optimization that type....
The LHC discovery potential of heavy top partners decaying into a quark and Z boson is studied in the trilepton channel at $$ \sqrt{s}=13 TeV single production mode. clean multilepton final state allows to strongly reduce background contaminations reconstruct T ′ mass. We show that simple cut-and-count analysis probes parameter space simplified model as efficiently dedicated multivariate analysis. signature finally turns out be sensitive low mass region complementary with fully hadronic...
Abstract The CMS Inner Tracker, made of silicon pixel modules, will be entirely replaced prior to the start High Luminosity LHC period. One crucial components new Tracker system is readout chip, being developed by RD53 Collaboration, and in particular its analogue front-end, which receives signal from sensor digitizes it. Three different front-ends (Synchronous, Linear, Differential) were designed implemented RD53A demonstrator chip. A dedicated evaluation program was carried out select most...
High-luminosity particle collider experiments such as the ones planned at High-Luminosity Large Hadron Collider require ever-greater vertexing precision of tracking detectors, necessitating also reductions in material budget detectors. Traditionally, fractional radiation length ($x/X_0$) detectors is either estimated using known properties constituent materials, or measured dedicated runs final detector. In this paper, we present a method direct measurement CMS prototype module designed for...
A new CMS tracker detector will be installed for operation at the High Luminosity LHC (HL-LHC). This comprises modules with two closely spaced parallel sensor plates and front-end ASICs capable of transmitting tracking information to Level-1 (L1) trigger 40 MHz beam crossing rate. The inclusion in L1 decision essential selecting events interest efficiently HL-LHC. Binary Chip (CBC) has been designed read out correlate hits from pairs sensors, forming so-called track stubs. For first time, a...
Abstract The Large Hadron Collider (LHC) at CERN will undergo major upgrades to increase the instantaneous luminosity up 5–7.5×10 34 cm -2 s -1 . This High Luminosity upgrade of LHC (HL-LHC) deliver a total 3000–4000 fb proton-proton collisions center-of-mass energy 13–14 TeV. To cope with these challenging environmental conditions, strip tracker CMS experiment be upgraded using modules two closely-spaced silicon sensors provide information include tracking in Level-1 trigger selection....
During the high-luminosity phase of LHC (HL-LHC), planned to start in 2027, accelerator is expected deliver an instantaneous peak luminosity up 7.5×1034 cm−2 s−1. A total integrated 0300 or even 0400 fb−1 foreseen be delivered general purpose detectors ATLAS and CMS over a decade, thereby increasing discovery potential experiments significantly. The detector will undergo major upgrade for HL-LHC, with entirely new tracking consisting Outer Tracker Inner Tracker. However, system exposed...
Abstract The Large Hadron Collider at CERN will undergo an upgrade in order to increase its luminosity 7.5 × 10 34 cm -2 s -1 . increased during this High-Luminosity running phase, starting around 2029, means a higher rate of proton-proton interactions, hence larger ionizing dose and particle fluence for the detectors. current tracking system CMS experiment be fully replaced cope with new operating conditions. Prototype planar pixel sensors Inner Tracker square 50 μm rectangular 100 25...
Abstract During the operation of CMS experiment at High-Luminosity LHC silicon sensors Phase-2 Outer Tracker will be exposed to radiation levels that could potentially deteriorate their performance. Previous studies had determined planar float zone with n-doped strips on a p-doped substrate was preferred over an substrate. The last step in evaluating optimal design for mass production about 200 m 2 compare baseline thickness (about 300 μm) thinned 240 μm), which promised several benefits...
The high luminosity upgrade of the Large Hadron Collider, foreseen for 2026, necessitates replacement CMS experiment’s silicon tracker. innermost layer new pixel detector will be exposed to severe radiation, corresponding a 1 MeV neutron equivalent fluence up $$\Phi _{eq} = 2 \times 10^{16}$$ cm $$^{-2}$$ , and an ionising dose $${\approx } 5$$ MGy after integrated 3000 fb $$^{-1}$$ . Thin, planar sensors are good candidates this application, since degradation signal produced by traversing...
In 2017 a new pixel detector was installed in the CMS detector. This so-called Phase-1 features four barrel layers central region and three disks per end forward regions. The upgraded requires an data acquisition (DAQ) system to accept format larger event sizes. A DAQ control has been developed based on combination of custom commercial microTCA parts. Custom mezzanine cards standard carrier provide front-end driver for readout, two types controller configuration distribution clock trigger...
The Future Circular Collider electron-positron (FCCee) feasibility study involves assessing the capabilities and performances of potential detector configurations. This focuses on impact various parameters tracking performances. Specifically, influence different geometries, material budgets, magnetic field strengths precision efficiency performance within CLIC-Like Detector is investigated. Tracking evaluated using full simulations. provides valuable insights into optimising design FCCee to...
Abstract A new tracking detector will be installed as part of the Phase-2 upgrade CMS for high-luminosity LHC era. This includes Inner Tracker, equipped with silicon pixel sensor modules, and Outer consisting modules two parallel stacked sensors. The Tracker front-end ASICs able to correlate hits from charged particles in these sensors perform on-module discrimination transverse momenta ( p T ). information is generated at a frequency 40 MHz used Level-1 trigger decision CMS. Prototypes...
The measurements of the inclusive t cross section is presented for proton-proton collisions recorded at = 7 and 8 TeV by ATLAS CMS experiments using lepton+jets dilepton events. most precise single measurement σt 161.9 ± 2.5(stat.)+5.1−5.0(syst.)±3.6(lumi.) pb, a luminosity 2.3 fb−1. from two are also combined to reach higher precision. With about 1 fb−1, cross-section 173.3±2.3(stat.)±9.8(syst.) pb. At TeV, measured in channels with detector corresponding 227 3(stat.)±11(syst.)±10(lumi.)
Abstract The Short Strip ASIC (SSA) is one of the four front-end chips designed for upgrade CMS Outer Tracker High Luminosity LHC. Together with Macro-Pixel (MPA) it will instrument modules containing a strip and macro-pixel sensor stacked on top each other. SSA provides both full readout hit information when triggered, and, together MPA, correlated clusters called stubs from two sensors use by Level-1 (L1) trigger system. Results first prototype module consisting are presented. has been...