Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Search For A Heavy Top Like Quark In Pp Collisions At Square Root S
Download Search For A Heavy Top Like Quark In Pp Collisions At Square Root S full books in PDF, epub, and Kindle. Read online Search For A Heavy Top Like Quark In Pp Collisions At Square Root S ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Search for a Heavy Top-like Quark in Pp̄ Collisions at [square Root] S by : David J. Cox
Download or read book Search for a Heavy Top-like Quark in Pp̄ Collisions at [square Root] S written by David J. Cox and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present the results of a search for pair production of a heavy top-like (t') quark decaying to Wq final states using data corresponding to an integrated luminosity of 5.6 fb−1 collected by the CDF II detector in proton-antiproton collisions at [square root s] = 1.96 TeV center of mass energy. A searche for t' --> Wb in events containing a lepton and four or more jets is conducted. By performing a fit to the two-dimensional distribution of total transverse energy versus reconstructed t' quark mass, we set upper limits on the t't̄' pair production cross section and exclude a standard model fourth-generation t' quark decaying to Wb with mass below 358 GeV/c2 at 95% CL.
Book Synopsis Search for a Heavy Bottom-like Quark in Pp Collisions at Sqrt(s) by :
Download or read book Search for a Heavy Bottom-like Quark in Pp Collisions at Sqrt(s) written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A search for pair-produced bottom-like quarks in pp collisions at sqrt(s) = 7 TeV is conducted with the CMS experiment at the LHC. The decay b' to tW is considered in this search. The b' b'-bar to tW-̂ t-bar W+̂ process can be identified by the distinctive signature of trileptons and same-sign dileptons. With a data sample corresponding to an integrated luminosity of 34 inverse picobarns, no excess above the standard model background predictions is observed and a b' quark with a mass between 255 and 361 GeV/c2̂ is excluded at the 95% confidence level.
Book Synopsis Search for the Top Quark in P̄p Collisions at [square Root Of]3 by : John Joseph Walsh
Download or read book Search for the Top Quark in P̄p Collisions at [square Root Of]3 written by John Joseph Walsh and published by . This book was released on 1990 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for Scalar Top Quark and Scalar Bottom Quark in Pp̄ Collisions at [square Root]S by : Christopher Matthew Holck
Download or read book Search for Scalar Top Quark and Scalar Bottom Quark in Pp̄ Collisions at [square Root]S written by Christopher Matthew Holck and published by . This book was released on 1999 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for the Top Quark Decaying to a Charged Higgs Boson in P̄p Collisions at [square Root]s by : Jinsong Wang
Download or read book Search for the Top Quark Decaying to a Charged Higgs Boson in P̄p Collisions at [square Root]s written by Jinsong Wang and published by . This book was released on 1994 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for the Top Quark in the Dielectron Channel in Pp̄ Collisions at [square Root Of] S by : Balamurali V
Download or read book Search for the Top Quark in the Dielectron Channel in Pp̄ Collisions at [square Root Of] S written by Balamurali V and published by . This book was released on 1994 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for a Vectorlike Quark with Charge 2/3 in T+Z Events from Pp Collisions at Sqrt[s] by :
Download or read book Search for a Vectorlike Quark with Charge 2/3 in T+Z Events from Pp Collisions at Sqrt[s] written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 the LHC. Events consistent with the flavor-changing-neutral-current decay of a T quark to a top quark and a Z boson are selected by requiring two leptons from the Z-boson decay, as well as an additional isolated charged lepton. In a data sample corresponding to an integrated luminosity of 1.14 inverse femtobarns, the number of observed events is found to be consistent with the standard model background prediction. Assuming a branching fraction of 100% for the decay T to tZ, a T quark with a mass less than 475 GeV/c2̂ is excluded at the 95% confidence level.
Book Synopsis Search for Singly Produced Top Partners in Trilepton Final State Using Data Collected by the ATLAS Detector from Pp Collisions at [square Root] S by : Avik Roy (Ph. D.)
Download or read book Search for Singly Produced Top Partners in Trilepton Final State Using Data Collected by the ATLAS Detector from Pp Collisions at [square Root] S written by Avik Roy (Ph. D.) and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents the search for a heavy, up-type vector-like quark (VLQ), or Top Partner, with charge +2/3. Top Partners are predicted in well motivated models of new physics beyond the Standard Model. Having collected data with the ATLAS detector during 2015-2018 run of the LHC at a center-of-mass energy of 13 TeV, I describe in this dissertation an analysis searching for Top Partners produced by the fusion of a W boson and a bottom quark and decaying into a Z boson and a top quark with a kinematic signature of three leptons. Since the search performed by analyzing the data collected in 2015-16 does not provide sufficient evidence in favor of VLQ discovery, we set limits on Top Partner mass as a function of its coupling constants. In order to extend this search for the entire dataset collected by ATLAS in Run 2 and facilitate a general interpretation and combination of all single VLQ searches in ATLAS, a generalized, semi-analytical framework for model-independent interpretation of the results of a generic search for the single production of VLQs in terms of the free parameters in the VLQ Lagrangian is presented. Additional studies are performed to facilitate computationally manageable signal generation for a fine grid of VLQ mass and couplings, probe interference between VLQ and standard model processes, and quantify contribution of sub-dominant diagrams. Finally, an updated analysis strategy to expand the previously mentioned search for the entire Run 2 dataset is described with initial results for kinematic distributions as well as expected limits on cross-sections, Top Partner masses, and couplings
Book Synopsis Search for Flavour-changing Neutral-current Interactions of a Top Quark and a Gluon in Pp Collisions at [square Root]s by : [Study Group] ATLAS Collaboration CERN
Download or read book Search for Flavour-changing Neutral-current Interactions of a Top Quark and a Gluon in Pp Collisions at [square Root]s written by [Study Group] ATLAS Collaboration CERN and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 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 by : ATLAS Collaboration CERN
Download or read book 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 written by ATLAS Collaboration CERN and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 momentum is performed. Signal regions are designed to search for two-, three-, and four-body decays of the directly pair-produced supersymmetric partner of the top quark (stop). Additional signal regions are designed specifically to search for spin-0 mediators that are produced in association with a pair of top quarks and decay into a pair of dark-matter particles. The search is performed using the Large Hadron Collider proton-proton collision dataset at a centre-of-mass energy of s√ = 13 TeV recorded by the ATLAS detector from 2015 to 2018, corresponding to an integrated luminosity of 139 fb−1. No significant excess above the Standard Model background is observed, and limits at 95% confidence level are set in the stop-neutralino mass plane and as a function of the mediator mass or the dark-matter particle mass. Stops are excluded up to 1200 GeV (710 GeV) in the two-body (three-body) decay scenario. In the four-body scenario stops up to 640 GeV are excluded for a stop-neutralino mass difference of 60 GeV. Scalar and pseudoscalar dark-matter mediators are excluded up to 200 GeV when the coupling strengths of the mediator to Standard Model and dark-matter particles are both equal to one and when the mass of the dark-matter particle is 1 GeV
Book Synopsis Evidence for Top Quark Production in P̄p Collisions at [square Root Symbol] S̳ by : Gordon T. Watts
Download or read book Evidence for Top Quark Production in P̄p Collisions at [square Root Symbol] S̳ written by Gordon T. Watts and published by . This book was released on 1994 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for Dark Matter in Association with a Top Quark and a W-boson in [square Root]s by : Paul Moder
Download or read book Search for Dark Matter in Association with a Top Quark and a W-boson in [square Root]s written by Paul Moder and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The Standard Model (SM) is the only model in particle physics containing all observed elementary particles and their interactions. Over the years, its predictions were tested and observed in a number of experiments. However, there are still observations that can not be explained by the SM with one of the most prominent ones being the existence of Dark Matter (DM). While the existence of DM was first theorised through astronomical observations, extensions of the SM allow for a search of DM at the Large Hadron Collider (LHC) as well. Since DM can not be detected directly, final states analysing its existence at the LHC are always designed around high missing transverse energy. This thesis presents a search for DM with data collected by the ATLAS detector in the years 2015-2018 corresponding to an integrated luminosity of 139~\mathrm{fb}^{-1}$ at a center of mass energy of 13~\TeV. The analysis is based on an extended two Higgs doublet model (2HDM+a) where a pseudo-scalar mediator allows the production of DM in the final state. In addition to the DM, a top quark and a \Wboson-boson are produced in the final state. This thesis mainly focuses on a final state with zero leptons which results in both the \Wboson-boson and the top quark being required to decay hadronically. In addition to that, the \Wboson-boson can be expected to have a high momentum in the signal process. Therefore, a dedicated identification algorithm using large-radius jets is employed to select events with at least one hadronically decaying \Wboson-boson. This allows for a strong distinction against SM background events. In this analysis, several different signal processes are considered, since different parameters can affect the cross section and the distributions of the signal processes. These parameters include different values for the mass of the mediator $a$, the mass of the heavy Higgs boson $H$ and $\tan\beta$. Since no significant excess was found in the signal regions when comparing SM prediction to data, upper exclusion limits on the cross section of the signal processes were calculated with a 95\% confidence level (CL). These limits are presented in three different model parameter planes. One such plane presents the upper limits for different values of the mass of the mediator, $m_a$, and the mass of the heavy Higgs boson, $m_H$, while keeping $\tan\beta = 1$. The second and third plane present the upper limits for different values of the mass of the heavy Higgs boson, $m_H$, and $\tan\beta$ while the mass of the mediator $a$ stays constant at $m_a = 250~\GeV$ and $m_a = 150~\GeV$. In addition to the upper limits for signal processes with one top quark in the final state, this thesis also provides an upper exclusion limit where this signal process is combined with a process that includes two top quarks in the final state
Book Synopsis A Search for Supersymmetric Quarks and Gluons in Pp̄ Collisions at [square Root Of] S by : Farhad Keyvan
Download or read book A Search for Supersymmetric Quarks and Gluons in Pp̄ Collisions at [square Root Of] S written by Farhad Keyvan and published by . This book was released on 1996 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for a Heavy Particle Decaying to a Top Quark and a Light Quark in $p\bar{p}$ Collisions at $\sqrt{s} by :
Download or read book Search for a Heavy Particle Decaying to a Top Quark and a Light Quark in $p\bar{p}$ Collisions at $\sqrt{s} written by and published by . This book was released on 2012 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a search for a new heavy particle M produced in association with a top quark, p{bar p} → t(M → {bar t}q) or p{bar p} → {bar t}({bar M} → t{bar q}), where q stands for up quarks and down quarks. Such a particle may explain the recent anomalous measurements of top-quark forward-backward asymmetry. If the light-flavor quark (q) is reconstructed as a jet (j), this gives a {bar t}+j or t+j resonance in t{bar t}+jet events, a previously unexplored experimental signature. In a sample of events with exactly one lepton, missing transverse momentum and at least five jets, corresponding to an integrated luminosity of 8.7 fb−1 collected by the CDF II detector, we find the data to be consistent with the standard model. We set cross-section upper limits on the production (p{bar p} → Mt or {bar M} {bar t}) at 95% confidence level from 0.61 pb to 0.02 pb for M masses ranging from 200 GeV/c2 to 800 GeV/c2, respectively.
Book Synopsis Search for a Heavy Top-Like Quark in $p\bar{p}$ Collisions at ${\surd}s by :
Download or read book Search for a Heavy Top-Like Quark in $p\bar{p}$ Collisions at ${\surd}s written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present the results of a search for pair production of a heavy top-like (t') quark decaying to W q final states using data corresponding to an integrated luminosity of 5.6 fb−1 collected by the CDF II detector in p{anti p} collisions at √{ovr s} = 1.96 TeV. We perform parallel searches for t' → W b and t' → W q (where q is a generic down-type quark) in events containing a lepton and four or more jets. By performing a fit to the two-dimensional distribution of total transverse energy versus reconstructed t' quark mass, we set upper limits on the t'{anti t}' production cross section and exclude a standard model fourth-generation t' quark decaying to W b (W q) with mass below 358 (340) GeV/c2 at 95% CL.
Book Synopsis Search for Flavor-changing Neutral Current Top Quark Decays T - Hq, with H - Bb, in Pp Collisions at [square Root Of] 2 by : Shota Tsiskaridze
Download or read book Search for Flavor-changing Neutral Current Top Quark Decays T - Hq, with H - Bb, in Pp Collisions at [square Root Of] 2 written by Shota Tsiskaridze and published by . This book was released on 2015 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for Single-top-quark Production in Pp̄ Collisions at [square Root of Strange Quark] by : Sarah Kristina Wolinski
Download or read book Search for Single-top-quark Production in Pp̄ Collisions at [square Root of Strange Quark] written by Sarah Kristina Wolinski and published by . This book was released on 2002 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download Search for a Heavy Top-like Quark in Pp̄ Collisions at [square Root] S PDF Online Free](https://books.google.com/books/content/images/frontcover/WRPLoAEACAAJ?fife=w200-h370)
![Download Search for the Top Quark in P̄p Collisions at [square Root Of]3 PDF Online Free](https://books.google.com/books/content/images/frontcover/INGXtgAACAAJ?fife=w200-h370)
![Download Search for Scalar Top Quark and Scalar Bottom Quark in Pp̄ Collisions at [square Root]S PDF Online Free](https://books.google.com/books/content/images/frontcover/4omONwAACAAJ?fife=w200-h370)
![Download Search for the Top Quark Decaying to a Charged Higgs Boson in P̄p Collisions at [square Root]s PDF Online Free](https://books.google.com/books/content/images/frontcover/2jIjOAAACAAJ?fife=w200-h370)
![Download Search for the Top Quark in the Dielectron Channel in Pp̄ Collisions at [square Root Of] S PDF Online Free](https://books.google.com/books/content/images/frontcover/73ritgAACAAJ?fife=w200-h370)
![Download Search for a Vectorlike Quark with Charge 2/3 in T+Z Events from Pp Collisions at Sqrt[s] PDF Online Free](https://books.google.com/books/content/images/frontcover/2gY9zQEACAAJ?fife=w200-h370)
![Download Search for Singly Produced Top Partners in Trilepton Final State Using Data Collected by the ATLAS Detector from Pp Collisions at [square Root] S PDF Online Free](https://books.google.com/books/content/images/frontcover/pPJSzwEACAAJ?fife=w200-h370)
![Download Search for Flavour-changing Neutral-current Interactions of a Top Quark and a Gluon in Pp Collisions at [square Root]s PDF Online Free](https://books.google.com/books/content/images/frontcover/E7XgzwEACAAJ?fife=w200-h370)
![Download 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 PDF Online Free](https://books.google.com/books/content/images/frontcover/ujimzwEACAAJ?fife=w200-h370)
![Download Evidence for Top Quark Production in P̄p Collisions at [square Root Symbol] S̳ PDF Online Free](https://books.google.com/books/content/images/frontcover/h6lTHAAACAAJ?fife=w200-h370)
![Download Search for Dark Matter in Association with a Top Quark and a W-boson in [square Root]s PDF Online Free](https://books.google.com/books/content/images/frontcover/n67NzwEACAAJ?fife=w200-h370)
![Download A Search for Supersymmetric Quarks and Gluons in Pp̄ Collisions at [square Root Of] S PDF Online Free](https://books.google.com/books/content/images/frontcover/L0JWNwAACAAJ?fife=w200-h370)
![Download Search for Flavor-changing Neutral Current Top Quark Decays T - Hq, with H - Bb, in Pp Collisions at [square Root Of] 2 PDF Online Free](https://books.google.com/books/content/images/frontcover/SE86ygEACAAJ?fife=w200-h370)
![Download Search for Single-top-quark Production in Pp̄ Collisions at [square Root of Strange Quark] PDF Online Free](https://books.google.com/books/content/images/frontcover/VgceAQAAMAAJ?fife=w200-h370)
