Search for Vector-like T Quarks Using Events with Oppositely-charged Lepton Pairs and Jets in Proton-proton Collisions at Centre-of-mass Energy of 13 TeV with CMS Detector

Search for Vector-like T Quarks Using Events with Oppositely-charged Lepton Pairs and Jets in Proton-proton Collisions at Centre-of-mass Energy of 13 TeV with CMS Detector
Author: Dalath Rachitha Asanga Mendis
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Total Pages:
Release: 2019
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A search is performed for heavy vector-like top quark partner (T) with electric charge +2/3 by using proton-proton collision events from Large Hadron Collider (LHC) at a centre- of-mass energy of 13 TeV. The data corresponds to an integrated luminosity of 35.9fb−1 collected by the Compact Muon Solenoid (CMS) experiment during 2016. The production of this new hypothetical particle is assumed to be in pairs and strong interaction is responsible for such production mechanism. T quarks can decay to various combinations of third generation quarks and standard model bosons: T → bW, tZ, or tH, and hence the final states consist of pair of opposite-sign leptons consistent with coming from a Z boson and jets. No significant excess has been observed and hence 95% CL upper limits are obtained on TT production cross section by assuming different branching ratios. T quark mass values below 1280 GeV are excluded in case of 100% branching fraction for T → tZ.


Search for Vector-like T Quarks Using Events with Oppositely-charged Lepton Pairs and Jets in Proton-proton Collisions at Centre-of-mass Energy of 13 TeV with CMS Detector
Language: en
Pages:
Authors: Dalath Rachitha Asanga Mendis
Categories:
Type: BOOK - Published: 2019 - Publisher:

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A search is performed for heavy vector-like top quark partner (T) with electric charge +2/3 by using proton-proton collision events from Large Hadron Collider (
Search for Vector-like Charge 2/3 T Quarks in Proton-proton Collisions at $\sqrt{s}$
Language: en
Pages: 48
Authors:
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Type: BOOK - Published: 2015 - Publisher:

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Our search for fermionic top quark partners T of charge 2/3 is presented. The search is carried out in proton-proton collisions corresponding to an integrated l
Search for a Vectorlike Quark with Charge 2/3 in T+Z Events from Pp Collisions at Sqrt[s]
Language: en
Pages:
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Type: BOOK - Published: 2011 - Publisher:

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A search for pair-produced heavy vector-like charge-2/3 quarks, T, in pp collisions at a center-of-mass energy of 7 TeV, is performed with the CMS detector at t
Search for New Phenomena with Top Quark Pairs in Final States with One Lepton, Jets, and Missing Transverse Momentum in Pp Collisions at [square Root]s
Language: en
Pages: 0
Authors: ATLAS Collaboration CERN
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Type: BOOK - Published: 2021 - Publisher:

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Abstract: A search for new phenomena with top quark pairs in final states with one isolated electron or muon, multiple jets, and large missing transverse moment
Inclusive Search for a Vector-like T Quark with Charge $\frac{2}{3}$ in Pp Collisions at $\sqrt{s}$
Language: en
Pages: 23
Authors:
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Type: BOOK - Published: 2014 - Publisher:

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A search is performed for a massive new vector-like quark T, with charge 2/3, that is pair produced together with its antiparticle in proton-proton collisions.