We study the potential of the future e + e- linear collider operated at a center-of-mass energy of 500 to 1000 GeV for the measurement of the neutral Higgs boson properties within the framework of ...the MSSM. The process of associated Higgs boson production with subsequent decays of Higgs bosons into b-quarks is considered. An integrated luminosity of 500 fb -1 is assumed at each energy. The Higgs boson masses and production cross sections are measured by reconstructing the \(\mathrm{b\bar{b}b\bar{b}}\) final state. The precision of these measurements, depending on the Higgs boson masses, is evaluated. Under the assumed experimental conditions, a statistical accuracy ranging from 0.1 to 1.0 GeV is achievable on the Higgs boson mass. The topological cross section \(\mathrm{\sigma(e^ + e^- \rightarrow HA\rightarrow b\bar{b}b\bar{b})}\) can be determined with the relative precision of 1.5-6.6 %. The 5\(\sigma\) discovery limit corresponds to the Higgs mass of around 385 GeV for the degenerate Higgs boson masses in the \(\mathrm{HA\to b\bar{b}b\bar{b}}\) channel at \(\sqrt{s}\) = 800 GeV with integrated luminosity of 500 fb-1. The potential of the Higgs mass determination for the benchmark point SPS 1a for the process \(\mathrm{HA\to b\bar{b}b\bar{b}}\) at \(\sqrt{s}\) = 1 TeV and luminosity 1000 fb-1 is investigated. The possibility of parameter measurements in a CP-violating MSSM scenario is shown. In the second part the inclusive method of charm and beauty cross section measurements in e + p collisions at H1 experiment for values of Q2 > 12 GeV2 is explained. Preliminary plots are shown.
The project VISPA@WEB provides a novel graphical development environment for physics analyses which only requires a standard web browser on the client machine. It resembles the existing analysis ...environment available from the project Visual Physics Analysis VISPA, including the connection and configuration of modules for different tasks. High level logic can be programmed using the Python language, while performance-critical tasks can be implemented in C++ modules. The use cases range from simple teaching examples to highly complex scientific analyses.
The job configuration system of the CMS experiment is based on the Python programming language. Software modules and their order of execution are both represented by Python objects. In order to ...investigate and verify configuration parameters and dependencies naturally appearing in modular software, CMS employs a graphical tool. This tool visualizes the configuration objects, their dependencies, and the information flow. Furthermore it can be used for documentation purposes. The underlying software concepts as well as the visualization are presented.
The Visual Physics Analysis (VISPA) project integrates different aspects of physics analyses into a graphical development environment. It addresses the typical development cycle of (re-)designing, ...executing and verifying an analysis. The project provides an extendable plug-in mechanism and includes plug-ins for designing the analysis flow, for running the analysis on batch systems, and for browsing the data content. The corresponding plug-ins are based on an object-oriented toolkit for modular data analysis. We introduce the main concepts of the project, describe the technical realization and demonstrate the functionality in example applications.
VISPA is a novel development environment for high energy physics analyses, based on a combination of graphical and textual steering. The primary aim of VISPA is to support physicists in prototyping, ...performing, and verifying a data analysis of any complexity. We present example screenshots, and describe the underlying software concepts.
We study the potential of the TESLA linear collider operated at a
center-of-mass energy of 500 to 1000 GeV for the measurement of the neutral
Higgs boson properties within the framework of the MSSM. ...The process of
associated Higgs boson production with subsequent decays of Higgs bosons into
b-quark and tau-lepton pairs is considered. An integrated luminosity of 500
fb^{-1} is assumed at each energy. The Higgs boson masses and production cross
sections are measured by reconstructing the bbbb and bb\tau\tau final states.
The precision of these measurements is evaluated in dependence of the Higgs
boson masses. Under the assumed experimental conditions a statistical accuracy
ranging from 0.1 to 1.0 GeV is achievable on the Higgs boson mass. The
topological cross section \sigma(e+e- -> HA -> bbbb) can be determined with the
relative precision of 1.5 - 6.6 % and cross sections \sigma(e+e- -> HA -> bb
\tau\tau) and \sigma(e+e- -> HA -> \tau\tau bb) with precision of 4 - 30 %.
Constraints on the Higgs boson widths can be set exploiting bb\tau\tau channel.
The 5\sigma discovery limit corresponds to the Higgs mass of around 385 GeV for
the degenerate Higgs boson masses in the HA -> bbbb channel at \sqrts = 800 GeV
with integrated luminosity of 500 fb^{-1}. The potential of the Higgs mass
determination for the benchmark point SPS 1a for the process e+e- -> HA -> bbbb
at \sqrt{s} = 1 TeV and luminosity 1000 fb^{-1} is investigated.
We study the potential of the TESLA linear collider operated at a center-of-mass energy of 500 to 1000 GeV for the measurement of the neutral Higgs boson properties within the framework of the MSSM. ...The process of associated Higgs boson production with subsequent decays of Higgs bosons into b-quark and tau-lepton pairs is considered. An integrated luminosity of 500 fb^{-1} is assumed at each energy. The Higgs boson masses and production cross sections are measured by reconstructing the bbbb and bb\tau\tau final states. The precision of these measurements is evaluated in dependence of the Higgs boson masses. Under the assumed experimental conditions a statistical accuracy ranging from 0.1 to 1.0 GeV is achievable on the Higgs boson mass. The topological cross section \sigma(e+e- -> HA -> bbbb) can be determined with the relative precision of 1.5 - 6.6 % and cross sections \sigma(e+e- -> HA -> bb \tau\tau) and \sigma(e+e- -> HA -> \tau\tau bb) with precision of 4 - 30 %. Constraints on the Higgs boson widths can be set exploiting bb\tau\tau channel. The 5\sigma discovery limit corresponds to the Higgs mass of around 385 GeV for the degenerate Higgs boson masses in the HA -> bbbb channel at \sqrts = 800 GeV with integrated luminosity of 500 fb^{-1}. The potential of the Higgs mass determination for the benchmark point SPS 1a for the process e+e- -> HA -> bbbb at \sqrt{s} = 1 TeV and luminosity 1000 fb^{-1} is investigated.
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