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 136 for “"transverse momentum"”.
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Axial and transverse momentum balance in subchannel analysis.
Thesis. 1975. M.S.--Massachusetts Institute of Technology. Dept. of Nuclear Engineering.
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J/ψ production and polarization with the inclusion of transverse momentum effects
… Model (CSM). Quite remarkably, in the small transverse momentum region these parameters are sensitive to the transverse momentum dependent (TMD) distributions of gluons inside the proton. We then propose a revised factorized formula valid for SIDIS-related observables evaluated at small …
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TRANSVERSE MOMENTUM EVOLUTION OF HADRON-V0 CORRELATIONS IN PP COLLISIONS AT 7 TEV
The Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN) in Geneva, Switzerland, is capable of accelerating beams of protons (pp) and heavy-ions (Pb+Pb) up to nearly the speed of light, which corresponds to center of mass energies of 7 TeV and 2.76 TeV, respectively. …
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Analysis of a deep neural network for missing transverse momentum reconstruction in ATLAS
… particles can be inferred by the observed momentum imbalance in the transverse plane. In this work, a deep neural network was trained using supervised learning to measure this imbalance. The performance of this network was evaluated in MC simulation and in 43 fb⁻¹ of data recorded at ATLAS. …
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Inclusive Pion Production at Large and Small Transverse Momentum in a Model of Hadrons
Made available in DSpace on 2015-05-13T15:21:58Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7606935.PDF: 2102921 bytes, checksum: b89f129eef5c4b78b2f26f81a452a094 (MD5) Previous issue date: 1975
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Inclusive pion production at large and small transverse momentum in a model of hadrons
Inclusive pion production at large and small transverse momentum PT has been studied in a model of hadrons. The model has the Feynman diagram structure of the multiperipheral model. The off-shell hadron amplitudes are taken from field theoretic ideas, the relationship with electroproduction, …
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Transverse momentum dependent nucleon structure from pions impinged on a transversely polarized proton target
The transverse momentum structure of the nucleon generalizes the 1-dimensional parton distribution functions (PDFs) to a 3-dimensional description. The extended distributions are called transverse momentum dependent (TMD) parton distribution functions. TMD functions include transverse quark and …
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Studies of high transverse momentum phenomena in heavy ion collisions using the PHOBOS detector
… Relativistic Heavy Ion Collider (RHIC): 1. The transverse momentum spectra of charged particles produced near mid rapidity in Cu+Cu collisions with center-of-mass energies of 62.4 and 200 GeV per nucleon pair 2. Two-particle correlations with a high transverse momentum trigger particle (pT > 2.5 …
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Study of high transverse momentum charged particle suppression in heavy ion collisions at LHC
The charged particle spectrum at large transverse momentum (PT), dominated by hadrons originating from parton fragmentation, is an important observable for studying the properties of the hot, dense medium produced in high-energy heavy-ion collisions. The study of the modifications of the PT …
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Second Order And Fluctuating Hydrodynamic Theory Of Two-Particle Transverse Momentum Correlations In Nuclear Collisions
… theory for the evolution of two-particle transverse momentum correlations. We use general temper- ature dependent transport and relaxation coefficients as well as the latest information on equations of state and use both first and second order relativistic viscous hydro- dynamics to …
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Measurement of Z Boson Transverse Momentum In Proton-Antiproton Collisions At sqrt(s)=1.96 TeV
… a measurement of the shape of the boson transverse momentum distribution in $p\bar{p}\rightarrow Z/\gamma^{*}\rightarrow e^+e^- +X$ events at a center-of-mass energy of 1.96 TeV. The measurement is made for events with electron-positron mass between $70 < M_{ee} < 110$ GeV/c$^{2}$ and …
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Analysis of Events with Isolated Leptons and Missing Transverse Momentum in ep Collisions at HERA
… of events with isolated leptons and missing transverse momentum in ep collisions is presented. Within the Standard Model (SM) such topologies are expected mainly from production of real W bosons with subsequent leptonic decay. This thesis continues the analysis of such events done in the …
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Two leptons, jets, and missing transverse momentum in ATLAS: yet more non-evidence for supersymmetry
Searching for new phenomena is an essential endeavour of experimental physics, and is helped by guidance from plausible theoretical predictions. This thesis presents such a search for signals of high-energy protons scattering to massive resonances with dramatic decays, which are predicted by …
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Identified particle transverse momentum distributions from AU + AU collisions at 62.4 GeV per nucleon pair
Transverse momentum (PT) distributions for pions, kaons, protons and antiprotons have been measured near mid-rapidity for Au+Au collisions at sNN = 62.4 GeV using the PHOBOS detector at the Relativistic Heavy-Ion Collider (RHIC) in Brookhaven National Laboratory. Particle identification is …
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Precision measurement of and search for dark matter in the transverse momentum spectra of Z bosons
… precision of the measurement at lower values of transverse momentum. In tandem, a search for new physics in events with a Z boson produced in association with large missing transverse momentum is presented. The results of this search are interpreted in the context of several dark matter models: …
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Determination of the gluon polarisation in the nucleon using hadron pairs with high transverse momentum at COMPASS
… contributions from gluons and orbital angular momentum are not constrained. <br> <br>This thesis is dedicated to the determination of the gluon polarisation in the nucleon. The analysis is based on the data taken by the COMPASS experiment at CERN during the years 2002 and 2003. From deep …
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Centrality dependence of two-particle number and transverse momentum correlations in 200 gev au+au collisions at rhic
… correlation measurements of number and transverse momentum as a function of relative azimuth, pseudorapidity and centrality. All three observables show the onset of a ``ridge" feature of enhanced correlations in pseudorapidity with increasing centrality. The plots of real data are …
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Energy Dependence of Transverse Momentum Correlations and an Exploration of the Color String Percolation Model in AuAu Collisions
The Relativisic Heavy Ion Collider (RHIC) conducted a two year beam energy
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Search for new physics in events with high transverse momentum leptons with the CMS detector at the LHC
En esta tesis se presentan medidas de procesos del SM y búsquedas de procesos BSM en sucesos con leptones de alto momento medidos en el detector CMS del LHC. Los estudios se realizan con datos correspondientes a colisiones protón-protón a √s=13
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Charged hadron transverse momentum spectra in Au+Au and d+Au collisions at 200 GeV per nucleon pair
… the nuclei will create a condensate of the low momentum gluons within the nuclei before any collisions occur. This condensate is termed the Color Glass Condensate (CGC). Both of these predictions can be tested by studying the transverse momentum, ..., spectra of charged hadrons produced in the …
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