- About
-
The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 1 to 8 of 8 (0.134 seconds)Spelling suggestions: "subject:"crosssection measurement"" "subject:"cross·section measurement""
| 1 |
Diboson physics with CMS detectorSvintradze, Irakli January 1900 (has links)
Doctor of Philosophy / Department of Physics / Yurii Maravin / In this dissertation, you will find a study of di-boson production in pp collision 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 setting the limits on anomalous trilinear gauge couplings (aTGC) between a Z boson and a photon. The measured cross-section of Z+gamma agrees within the uncertainties with the standard model predicted cross section at next to leading order. Having found no excess in cross section measurement, we set the 95% con fidence level (C.L.) limit on aTGC.
Another study discussed is a study of a low-scale walking Technicolor model with rho[subscript]T and a[subscript]T production in the fully leptonic fi nal state at 95% C.L. in proton-proton collisions at center of mass energy 10 TeV scenario using Monte Carlo simulation. We conclude that such processes can be excluded with 366 pb[superscript]-1 of data for rho[superscript]T masses up to 400 GeV and the observation would require 2.8 fb[superscript]-1 of data with 5 sigma precision.
|
| 2 |
Measurement of the top pair production cross section at CDF using neural networksMarginean, Radu January 2004 (has links)
No description available.
|
| 3 |
Measurement Of (anti-)neutrino--nucleon Structure Functions In Chorus ExperimentKama, Sami 01 August 2005 (has links) (PDF)
In this work an analysis of the CHORUS
(anti-)neutrino-nucleon scattering data taken on lead--scintillator calorimeter
during the 1998 run is presented. The differential cross-sections are
measured in the range of $0.01le xle 0.7$, $0.05le y le 0.95$,
$10le E_nu le 200 GeV$ for both anti-neutrino and neutrino beam modes.
The anti-neutrino and neutrino--nucleon structure
functions Fone, Ftwo and Fthree is extracted by making 2, 3 and 6-parameter
fits to the measured differential cross-sections.
The comparisons of these results with
the earlier experiments, CDHSW and CCFR is given.
|
| 4 |
Measurement of Higgs boson properties using the decay channel to b-quarks following associated production with a vector boson in pp collisions at √s=13 TeV / 重心系エネルギー13 TeVの陽子陽子衝突におけるヒッグス粒子のbクォークへの崩壊とベクトルボソン随伴生成を使用したヒッグス粒子の性質測定Noguchi, Yohei 23 March 2021 (has links)
京都大学 / 新制・課程博士 / 博士(理学) / 甲第22999号 / 理博第4676号 / 新制||理||1671(附属図書館) / 京都大学大学院理学研究科物理学・宇宙物理学専攻 / (主査) 長野 邦浩, 教授 中家 剛, 准教授 吉岡 興一 / 学位規則第4条第1項該当 / Doctor of Science / Kyoto University / DFAM
|
| 5 |
Cross-section measurements of top-quark pair production in association with a hard photon at 13 TeV with the ATLAS detectorZoch, Knut 06 July 2020 (has links)
No description available.
|
| 6 |
Studies of Accelerator-Driven Systems for Transmutation of Nuclear Waste / Studier av acceleratordrivna system för transmutation av kärnavfallDahlfors, Marcus January 2006 (has links)
<p>Accelerator-driven systems for transmutation of nuclear waste have been suggested as a means for dealing with spent fuel components that pose potential radiological hazard for long periods of time. While not entirely removing the need for underground waste repositories, this nuclear waste incineration technology provides a viable method for reducing both waste volumes and storage times. Potentially, the time spans could be diminished from hundreds of thousand years to merely 1.000 years or even less. A central aspect for accelerator-driven systems design is the prediction of safety parameters and fuel economy. The simulations performed rely heavily on nuclear data and especially on the precision of the neutron cross section representations of essential nuclides over a wide energy range, from the thermal to the fast energy regime. In combination with a more demanding neutron flux distribution as compared with ordinary light-water reactors, the expanded nuclear data energy regime makes exploration of the cross section sensitivity for simulations of accelerator-driven systems a necessity. This fact was observed throughout the work and a significant portion of the study is devoted to investigations of nuclear data related effects. The computer code package EA-MC, based on 3-D Monte Carlo techniques, is the main computational tool employed for the analyses presented. Directly related to the development of the code is the extensive IAEA ADS Benchmark 3.2, and an account of the results of the benchmark exercises as implemented with EA-MC is given. CERN's Energy Amplifier prototype is studied from the perspectives of neutron source types, nuclear data sensitivity and transmutation. The commissioning of the n_TOF experiment, which is a neutron cross section measurement project at CERN, is also described.</p>
|
| 7 |
Studies of Accelerator-Driven Systems for Transmutation of Nuclear Waste / Studier av acceleratordrivna system för transmutation av kärnavfallDahlfors, Marcus January 2006 (has links)
Accelerator-driven systems for transmutation of nuclear waste have been suggested as a means for dealing with spent fuel components that pose potential radiological hazard for long periods of time. While not entirely removing the need for underground waste repositories, this nuclear waste incineration technology provides a viable method for reducing both waste volumes and storage times. Potentially, the time spans could be diminished from hundreds of thousand years to merely 1.000 years or even less. A central aspect for accelerator-driven systems design is the prediction of safety parameters and fuel economy. The simulations performed rely heavily on nuclear data and especially on the precision of the neutron cross section representations of essential nuclides over a wide energy range, from the thermal to the fast energy regime. In combination with a more demanding neutron flux distribution as compared with ordinary light-water reactors, the expanded nuclear data energy regime makes exploration of the cross section sensitivity for simulations of accelerator-driven systems a necessity. This fact was observed throughout the work and a significant portion of the study is devoted to investigations of nuclear data related effects. The computer code package EA-MC, based on 3-D Monte Carlo techniques, is the main computational tool employed for the analyses presented. Directly related to the development of the code is the extensive IAEA ADS Benchmark 3.2, and an account of the results of the benchmark exercises as implemented with EA-MC is given. CERN's Energy Amplifier prototype is studied from the perspectives of neutron source types, nuclear data sensitivity and transmutation. The commissioning of the n_TOF experiment, which is a neutron cross section measurement project at CERN, is also described.
|
| 8 |
Měření účinných průřezů v reaktorovém spektru: 55Mn(n,2n), 90Zr(n,2n), 127I(n,2n) / Cross section measurement in reactor spectrum: 55Mn(n,2n), 90Zr(n,2n), 127I(n,2n)Burianová, Nicola January 2018 (has links)
This diploma thesis deals with the validation of spectral average cross-sections (SACS) of 55 Mn(n,2n)54 Mn, 90 Zr(n,2n)89 Zr, 127 I(n,2n)126 I reactions in well-defined LR-0 reactor spectrum. The measurement of SACS for selected reactions is of high interest because they are used for the practical reactor dosimetry. Various experiments for description of neutron field in reactor and detector characterization, which are necessary for validation, are described. The spectral average cross-sections are derived from Net Peak Areas of irradiated samples measured using a semiconductor high purity germanium detector. Obtained result were compared with MCNP6 calculations using ENDF/B-VII.0, ENDF/B-VII.1, JEFF-3.1, JEFF-3.2, JENDL-3.3, JENDL-4, ROSFOND-2010, CENDL-3.1 and IRDFF nuclear data libraries. Notable discrepancies were found in 90 Zr(n,2n)89 Zr and 127 I(n,2n)126 I reactions. This thesis also contains a theoretical basis for the interaction of neutrons with matter.
|
Page generated in 0.1416 seconds