Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 95 for “"Large Hadron Collider (LHC)"”.
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Machine learning for particle identification & deep generative models towards fast simulations for the Alice Transition Radiation Detector at CERN
… pursued by physicists working with the ALICE (A Large Ion Collider Experiment) Transition Radiation Detector (TRD), within the Large Hadron Collider (LHC) at CERN (The European Organization for Nuclear Research).
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A systematic resolution study of [tau][tau] decays at CMS at the LHC
… Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) at CERN. I performed this analysis using Monte Carlo simulated events with a Higgs boson which decays into two tau particles with initial mass mH = 90 - 500 GeV/c ² . The two daughter taus were required to then decay …
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Infrared subtraction at next-to-next-to-leading order for gluonic initial states
… state, and in particular two-jet production in hadron-hadron collisions at accelerators such as the Large Hadron Collider (LHC). We derive explicit formulae for subtracting the single and double unresolved contributions from the double radiation gluonic processes using antenna functions with …
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Micron precision calibration methods for alignment sensors in particle accelerators
Large Hadron Collider (LHC) at CERN, the European Organization for Nuclear Research, has, on each side of its four experiments, a set of three magnets, called low-beta magnets. These magnets provide the final-focus for the beams that collide head on in the experiments. The magnets have to be …
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Modeling exascale data generation and storage for the large hadron collider computing network
The Large Hadron Collider (LHC) is the world's largest and highest energy particle accelerator. With the particle collisions produced at the LHC and measured with the Compact Muon Solenoid (CMS) detector, the CMS experimental group performs precision measurements and general searches for new …
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Analisi degli spettri di particelle neutre prodotte a piccolo angolo con l’esperimento LHCf a LHC
… loro produzione e accelerazione. L'esperimento LHC-forward (LHCf) presso il Large Hadron Collider (LHC) svolge un ruolo chiave nell'affrontare queste incertezze, fornendo preziose misurazioni della produzione di particelle in avanti nelle collisioni protone-protone e protone-ione. Questa tesi …
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UNDERLYING EVENTS AND SOFT QCD
… and 13 TeV with the CMS Collaboration at the Large Hadron Collider (LHC). Such soft QCD phenomena are of huge phenomenological and experimental interest at the LHC as they dominate most of the proton-proton interaction cross-section and contribute to the background of other rare and …
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LHCb distributed data analysis on the computing grid
LHCb is one of the four Large Hadron Collider (LHC) experiments based at CERN, the European Organisation for Nuclear Research. The LHC experiments will start taking an unprecedented amount of data when they come online in 2007. Since no single institute has the compute resources to handle this …
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Electron identification and ZZ -->4l̳ (e̳, [mu]) cross section measurement with the CMS detector
… the Compact Muon Solenoid (CMS) detector at the Large Hadron Collider (LHC). In particular, we carry out three central investigations: the determination of electron efficiencies, electron fake rates, and ZZ -->4l(e, [mu]) cross sections. Reconstructed Z boson decays are used as a benchmark in …
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Development of dense scintillating hard fluoride glasses for the electromagnetic caorimeter of the proposed compact muon solenoid
… Muon Solenoid (CMS), a proposed detector for the Large Hadron Collider (LHC) at CERN, Geneva. Incorporating CeF 3 in these transparent glasses results in scintillators with fast time constants that are typical of crystalline CeF 3. Typical decay components of 9 ns (30 %) and 25 ns (70 %) have been …
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Phenomenology of new physics beyond the Standard Model: signals of Supersymmetry with displaced vertices and an extended Higgs sector at colliders
… physics. What this new physics may look like at colliders motivates the original work in this thesis, which comprises three studies: the prospects of future electron-positron colliders in testing a model with an extended Higgs sector with a scalar triplet, doublet and singlet; the discovery …
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Analysis of Beauty Quark Hadronization in Vacuum and Quark-Gluon Plasma with CMS
… 𝐵ₛ⁰ and 𝐵⁺ mesons decay into 𝐽/𝜓 and strange hadrons using Compact Muon Solenoid (CMS) Experiment 2017 𝑝𝑝 dataset and 2018 PbPb data at the center of mass energy per nucleon √𝑠𝑁𝑁 = 5.02 TeV at the Large Hadron Collider (LHC) is presented. We apply machine learning techniques along with …
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A study of tau identification with the CMS detector at the LHC
… the Compact Muon Solenoid (CMS) detector on the Large Hadron Collider (LHC) at CERN. The two components of particle identification, efficiencies of [tau] identification from generator level information, along with fake rates of the current default algorithm have been determined and analyzed for a …
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Single muon production as a function of charged-particle multiplicity in proton-proton collisions at 8 TeV with ALICE at the LHC
At the Large Hadron Collider (LHC), ALICE (A Large Ion Collider Experiment) is a general purpose heavy-ion detector. ALICE is also studying proton-proton collisions, both as a reference for lead-lead and proton-lead collisions, and in physics areas where ALICE is competitive with other LHC …
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Search for new phenomena using three-photon final states in data collected with the ATLAS detector at the Large Hadron Collider
… used for this analysis was collected at the CERN Large Hadron Collider (LHC) during the run period from 2015 to 2018. The proton-proton collision center-of-mass energy was 13\,TeV and the corresponding integrated luminosity recorded by the ATLAS detector was $139\,{\rm fb^{-1}}$. </p>
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Physics performance studies for the ALICE experiment at the CERN LHC
The ALICE experiment at the CERN Large Hadron Collider (LHC) will explore a primordial state of matter that existed in the early Universe. Resonance production at the LHC is of great interest in the study of the phase state of hadronic matter known as Quark Gluon Plasma (QGP). Results are presented …
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Inclusive Electroweak measurements in the muon channel with pp collisions at [the square root of] s=7 TeV
… at [the square root of]s = 7 TeV with the Large Hadron Collider (LHC). In the LHC, W and Z bosons are produced at a high rate, providing for large yields, which along with the clean signature of W boson decay into a muon and neutrino and the Z boson decay into two muons, allow for precision …
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Studies of Jet Modification in Heavy Ion Collisions with the CMS Experiment
… the Compact Muon Solenoid (CMS) detector at the Large Hadron Collider (LHC), lead ions are collided at ultra-relativistic velocities to produce Quark-Gluon Plasma (QGP), a state of matter where quarks and gluons are deconfined and move collectively. Jets are produced in high-momentum transfer …
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Diboson physics with CMS detector
… with the Compact Muon Solenoid (CMS) detector at Large Hadron Collider (LHC). A study of Z+gamma process is performed on the data collected by the CMS during 2011 and corresponding to integrated luminosity L= 5 fb[superscript]-1. The study consists of two parts: cross section measurement and …
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A distributed analysis and monitoring framework for the compact Muon solenoid experiment and a pedestrian simulation
… Physics. Access to the data produced by the Large Hadron Collider (LHC) has to be provided for more than five thousand scientists all over the world. Users who run analysis jobs on the Grid do not necessarily have expertise in Grid computing. Simple, userfriendly and reliable monitoring of …
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