Andres Tiko "Measurement of Single-top Quark Properties with the CMS detector" | University of Tartu Institute of Physics

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Contacts of UT units

Faculty of Arts and Humanities
Faculty phone: 
+372 737 5341
Faculty address: 
Jakobi 2, rooms 116–121, 51005 Tartu
  • Dean's Office
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    + 372 737 5341
    Faculty address: 
    Jakobi 2, rooms 116–121, 51005 Tartu
  • Institute of History and Archaeology
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    Jakobi 2, 51005 Tartu
  • Institute of Estonian and General Linguistics
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    Faculty address: 
    Jakobi 2, 51005 Tartu
  • Institute of Philosophy and Semiotics
    Faculty phone: 
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    Faculty address: 
    Jakobi 2, rooms 309–352, 51005 Tartu
  • Institute of Cultural Research
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    Ülikooli 16, 51003 Tartu
  • School of Theology and Religious Studies
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    +372 737 5301
    Faculty address: 
    Ülikooli 18–310, 50090 Tartu
  • College of Foreign Languages and Cultures
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    Lossi 3, 51003 Tartu
  • Viljandi Culture Academy
    Faculty phone: 
    +372 435 5232
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    Posti 1, 71004 Viljandi
Faculty of Social Sciences
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+372 737 5957
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Lossi 36, 51003 Tartu
  • Dean's Office
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    Lossi 36, 51003 Tartu
  • Institute of Education
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    Salme 1a–29, 50103 Tartu
  • Johan Skytte Institute of Political Studies
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    Lossi 36–301, 51003 Tartu
  • School of Economics and Business Administration
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  • Institute of Psychology
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  • Institute of Biomedicine and Translational Medicine
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  • Institute of Sport Sciences and Physiotherapy
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Faculty of Science and Technology
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Vanemuise 46–208, 51014 Tartu
  • Dean's Office
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  • Institute of Computer Science
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  • Estonian Marine Institute
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  • Institute of Physics
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  • Institute of Chemistry
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  • Institute of Mathematics and Statistics
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  • Institute of Molecular and Cell Biology
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  • Tartu Observatory
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  • Institute of Technology
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  • Institute of Ecology and Earth Sciences
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    Vanemuise 46, 51003 Tartu
Institutions
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    +372 737 5702
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    W. Struve 1, 50091 Tartu
  • Youth Academy
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    Faculty address: 
    Uppsala 10, 51003 Tartu
  • Institute of Genomics
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    +372 737 4000
    Faculty address: 
    Riia 23b, 51010 Tartu
  • Museum
    Faculty phone: 
    +372 737 5674
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    Lossi 25, 51003 Tartu
  • University of Tartu Natural History Museum and Botanical Garden
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    +372 737 6076
    Faculty address: 
    Vanemuise 46, 51003 Tartu
Support Units
  • Administrative Office
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    Faculty address: 
    Ülikooli 18a, 51005 Tartu
  • Centre for Entrepreneurship and Innovation
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    +372 737 4809
    Faculty address: 
    Narva mnt 18, 51009, Tartu
  • University Office in Tallinn
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    +372 737 6600
    Faculty address: 
    Teatri väljak 3, 10143 Tallinn
  • Estates Office
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    +372 737 5137
    Faculty address: 
    Ülikooli 18a, 51005 Tartu
  • Finance Office
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    +372 737 5125
    Faculty address: 
    Jakobi 4, 51005 Tartu
  • Grant Office
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    Faculty address: 
    Lossi 3, III floor, 51003 Tartu
  • Information Technology Office
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    Ülikooli 18a, 51005 Tartu
  • Human Resources Office
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    Ülikooli 18, rooms 302 and 304, 50090 Tartu
  • Internal Audit Office
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  • Marketing and Communication Office
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    Faculty address: 
    Ülikooli 18, rooms 102, 104, 209, 210, 50090 Tartu
  • Office of Academic Affairs
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    +372 737 5620
    Faculty address: 
    Ülikooli 18, 50090 Tartu
  • Procurement Office
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    Faculty address: 
    Ülikooli 18a, 51005 Tartu
  • Rector's Strategy Office
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    Faculty address: 
    Ülikooli 18, 50090 Tartu
  • Student Council
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    Ülikooli 18b, 51005 Tartu
  • University of Tartu Press
    Faculty phone: 
    +372 737 5945
    Faculty address: 
    W. Struve 1, 50091 Tartu
Other Units
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    Faculty address: 
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  • Tartu Student Village
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    Faculty address: 
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  • Tartu Students’ Club
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    Faculty address: 
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  • Tartu University Hospital
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    L. Puusepa 1a, 50406 Tartu
  • University of Tartu Foundation
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  • View all other units

Andres Tiko "Measurement of Single-top Quark Properties with the CMS detector"

Date: 
21.10.2016 - 14:00

Andres Tiko will defend his doctoral thesis titled "Measurement of Single-top Quark Properties with the CMS detector" on 21. October 2016 at 14.15 at W. Ostwaldi 1, room B103.

Supervisors:
Dr. Andrea Giammanco, Université catholique de Louvain, Belgium
Dr. Mario Kadastik, National Institute of Chemical Physics and Biophysics,
Prof. Martti Raidal, Institute of Physics, University of Tartu / National Institute of Chemical Physics and Biophysics,

Oponent: 
Dr. Oliver Maria Kind, Humboldt University, Germany

Summary: 

After the recent discovery of the Higgs boson, all particles predicted by the standard model of particle physics (SM) have been found. However, since many phenomena, such as dark matter or neutrino masses, are not explained by SM, there is reason to believe that it is not the final theory. A particularly interesting object of study to check for possible deviations from SM predictions is the top quark. Top quark is the heaviest discovered particle. Its very high mass causes the top quark to decay before forming hadrons in contrast to other quarks, which always form composite particles. Thus, the top quark gives us a special opportunity to study a bare quark. Due to its mass, the top quark is also the particle with the strongest interaction with the Higgs boson. Top quarks are created either in quark-antiquark pairs through the strong interaction or less frequently as single top (anti)quarks through weak interaction. The probability of being created is measured by production cross section, which is an important property of all particle physics processes. Despite the smaller production cross section, single top production offers possibilities to study some of the top quark properties in a better way compared to pair production. For example, all single top quarks are created left-handed according to SM prediction, and as the top quark decays before the spin has time to change, the spin of the top quark can be measured through the decay products. Single top quark production was first observed only recently, in 2009. The Large Hadron Collider (LHC) is the world’s biggest and highest energy particle collider with a circumference of 27 km, colliding beams of protons circulating in opposite directions at centre-of-mass energies up to 14 TeV. There are seven experiments in operation at the LHC, this work utilises the data collected with the general purpose detector Compact Muon Solenoid (CMS). In this thesis, the measurement of single top quark cross section is performed at proton-proton collisions at the centre-of-mass energies of 7 and 8 TeV, and single top quark polarisation is measured at 8 TeV.

 

Location: 
Physicum, aud B103
Event category: