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Physics and detector simulation studies of B-meson decays in ATLAS
This thesis has two objectives; the first is to study the phenomenology of heavy quarks in high energy proton- proton collisions at the Large Hadron Collider (LHC) at the European Laboratory for Particle Physics (CERN). The second objective is to estimate the performance for B- physics analysis of t...
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| Lenguaje: | eng |
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Uppsala U.
2001
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| Acceso en línea: | http://cds.cern.ch/record/550141 |
| _version_ | 1780898475129438208 |
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| author | Damet, J |
| author_facet | Damet, J |
| author_sort | Damet, J |
| collection | CERN |
| description | This thesis has two objectives; the first is to study the phenomenology of heavy quarks in high energy proton- proton collisions at the Large Hadron Collider (LHC) at the European Laboratory for Particle Physics (CERN). The second objective is to estimate the performance for B- physics analysis of the Inner Tracking Detector in the ATLAS experimental set-up at the LHC. Phenomenological models of B-meson production-asymmetry and prompt J/ψ production are examined to investigate, and better understand, the different non perturbative QCD models and their description of potential sources of background in CP violation measurements. A Monte Carlo evaluation is made of the precision that can be reached in measurements of CP-violation in the <math> <f> <rm>B<sup>0</sup><inf>d</inf>→J/<g>y</g>K<sup>0</sup><inf> s</inf></rm></f> </math> decay channel as well as of the possibilities of ATLAS to detect physics beyond the Standard Model in the B<super>+</super> → K<super>+</super>K<super> +</super>π− decay channel. It is shown that after three years of running at low luminosity (30 fb<super>−1</super>) with ATLAS at LHC: (1) a statistical accuracy in the measurement of <italic>sin</italic>2β, δ<italic><sub> stat</sub></italic>(<italic>sin</italic>2β) = 0.010 for an assumed value of <italic>sin</italic>2β of 0.60 can be reached; and (2) an upper limit on R- parity violating couplings λ<super>′</super> can be set:<display-math> <fd> <fl><rad><rcd><fen lp='vb'><sum align='c'><ll>i=1</ll><ul>3</ul></sum> <g>l</g><sup>′</sup><inf>i32</inf><g>l</g><sup>′* </sup><inf>i21</inf><rp post='vb'></fen><sup>2</sup>+<fen lp='vb'> <sum align='c'><ll>i=1</ll><ul>3</ul></sum><g>l</g><sup>′ </sup><inf>i12</inf><g>l</g><sup>′*</sup><inf>i23</inf> <rp post='vb'></fen><sup>2</sup></rcd></rad><5.4˙10<sup> -5</sup>.</fl> </fd> </display-math> |
| id | cern-550141 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2001 |
| publisher | Uppsala U. |
| record_format | invenio |
| spelling | cern-5501412019-09-30T06:29:59Zhttp://cds.cern.ch/record/550141engDamet, JPhysics and detector simulation studies of B-meson decays in ATLASDetectors and Experimental TechniquesParticle Physics - ExperimentThis thesis has two objectives; the first is to study the phenomenology of heavy quarks in high energy proton- proton collisions at the Large Hadron Collider (LHC) at the European Laboratory for Particle Physics (CERN). The second objective is to estimate the performance for B- physics analysis of the Inner Tracking Detector in the ATLAS experimental set-up at the LHC. Phenomenological models of B-meson production-asymmetry and prompt J/ψ production are examined to investigate, and better understand, the different non perturbative QCD models and their description of potential sources of background in CP violation measurements. A Monte Carlo evaluation is made of the precision that can be reached in measurements of CP-violation in the <math> <f> <rm>B<sup>0</sup><inf>d</inf>→J/<g>y</g>K<sup>0</sup><inf> s</inf></rm></f> </math> decay channel as well as of the possibilities of ATLAS to detect physics beyond the Standard Model in the B<super>+</super> → K<super>+</super>K<super> +</super>π− decay channel. It is shown that after three years of running at low luminosity (30 fb<super>−1</super>) with ATLAS at LHC: (1) a statistical accuracy in the measurement of <italic>sin</italic>2β, δ<italic><sub> stat</sub></italic>(<italic>sin</italic>2β) = 0.010 for an assumed value of <italic>sin</italic>2β of 0.60 can be reached; and (2) an upper limit on R- parity violating couplings λ<super>′</super> can be set:<display-math> <fd> <fl><rad><rcd><fen lp='vb'><sum align='c'><ll>i=1</ll><ul>3</ul></sum> <g>l</g><sup>′</sup><inf>i32</inf><g>l</g><sup>′* </sup><inf>i21</inf><rp post='vb'></fen><sup>2</sup>+<fen lp='vb'> <sum align='c'><ll>i=1</ll><ul>3</ul></sum><g>l</g><sup>′ </sup><inf>i12</inf><g>l</g><sup>′*</sup><inf>i23</inf> <rp post='vb'></fen><sup>2</sup></rcd></rad><5.4˙10<sup> -5</sup>.</fl> </fd> </display-math>Uppsala U.oai:cds.cern.ch:5501412001 |
| spellingShingle | Detectors and Experimental Techniques Particle Physics - Experiment Damet, J Physics and detector simulation studies of B-meson decays in ATLAS |
| title | Physics and detector simulation studies of B-meson decays in ATLAS |
| title_full | Physics and detector simulation studies of B-meson decays in ATLAS |
| title_fullStr | Physics and detector simulation studies of B-meson decays in ATLAS |
| title_full_unstemmed | Physics and detector simulation studies of B-meson decays in ATLAS |
| title_short | Physics and detector simulation studies of B-meson decays in ATLAS |
| title_sort | physics and detector simulation studies of b-meson decays in atlas |
| topic | Detectors and Experimental Techniques Particle Physics - Experiment |
| url | http://cds.cern.ch/record/550141 |
| work_keys_str_mv | AT dametj physicsanddetectorsimulationstudiesofbmesondecaysinatlas |