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Top Quark Physics at the CMS Experiment
The top quark is the known elementary particle. It is expected to play a special role in many theories beyond the Standard Model (SM). At the LHC, top quarks are produced abundantly, mainly in pairs by gluon fusion. The top quark mass has been measured to be 172.9 ±0.6(stat.) ±0.9±(syst.) GeV and th...
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| Lenguaje: | eng |
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2015
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| Acceso en línea: | https://dx.doi.org/10.1142/9789814663618_0065 http://cds.cern.ch/record/2159109 |
| Sumario: | The top quark is the known elementary particle. It is expected to play a special role in many theories beyond the Standard Model (SM). At the LHC, top quarks are produced abundantly, mainly in pairs by gluon fusion. The top quark mass has been measured to be 172.9 ±0.6(stat.) ±0.9±(syst.) GeV and the width of the top quark is found to be Λt = 2.0 ±0.7(stat.) ±0.6±(syst.) GeV. This implies a lifetime much shorter than the hadronization time-scale, , and opens the possibility to study the properties of a bare quark. The advent of pp collisions at the Large Hadron Collider (LHC) has started a new phase of top quark physics. |
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