Heavy Neutral Particle Decays to Tau Pairs

Heavy Neutral Particle Decays to Tau Pairs PDF Author: Michail Bachtis
Publisher: Springer
ISBN: 9783319380780
Category : Science
Languages : en
Pages : 0

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Book Description
The work presented in this thesis spans a wide range of experimental particle physics subjects, starting from level-1 trigger electronics to the final results of the search for Higgs boson decay and to tau lepton pairs. The thesis describes an innovative reconstruction algorithm for tau decays and details how it was instrumental in providing a measurement of Z decay to tau lepton pairs. The reliability of the analysis is fully established by this measurement before the Higgs boson decay to tau lepton pairs is considered. The work described here continues to serve as a model for analysing CMS Higgs to tau leptons measurements.

Heavy Neutral Particle Decays to Tau Pairs

Heavy Neutral Particle Decays to Tau Pairs PDF Author: Michail Bachtis
Publisher: Springer
ISBN: 9783319380780
Category : Science
Languages : en
Pages : 0

Get Book Here

Book Description
The work presented in this thesis spans a wide range of experimental particle physics subjects, starting from level-1 trigger electronics to the final results of the search for Higgs boson decay and to tau lepton pairs. The thesis describes an innovative reconstruction algorithm for tau decays and details how it was instrumental in providing a measurement of Z decay to tau lepton pairs. The reliability of the analysis is fully established by this measurement before the Higgs boson decay to tau lepton pairs is considered. The work described here continues to serve as a model for analysing CMS Higgs to tau leptons measurements.

Heavy Neutral Particle Decays to Tau Pairs in Proton Collisions at Sqrt(s)

Heavy Neutral Particle Decays to Tau Pairs in Proton Collisions at Sqrt(s) PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 434

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Book Description
This thesis describes a study of the tau-pair final state in proton collisions at a center of mass energy of 7 TeV using the CMS Experiment at the CERN Large Hadron Collider. Tau leptons usually decay to hadrons and their efficient detection is very challenging in a hadronic environment. A novel tau reconstruction algorithm that maintains tau detection efficiency for low background rates was developed. Events were then selected from the CMS 2011 data sample in three T T final states depending on the tau decays: mu + T (h), e+ T (h) , e+mu where T (h) denotes a hadronic tau decay. Those events were used to measure the Z-boson production cross section where Z yields T T . A search for the Standard Model and Minimal Supersymmetric Standard Model (MSSM) Higgs bosons was also performed. No signal was observed in the Higgs search and stringent new bounds were set for the SM Higgs production and in the MSSM parameter space.

Heavy Neutral Particle Decays to Tau Pairs

Heavy Neutral Particle Decays to Tau Pairs PDF Author: Michail Bachtis
Publisher: Springer Science & Business Media
ISBN: 3319032577
Category : Science
Languages : en
Pages : 161

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Book Description
The work presented in this thesis spans a wide range of experimental particle physics subjects, starting from level-1 trigger electronics to the final results of the search for Higgs boson decay and to tau lepton pairs. The thesis describes an innovative reconstruction algorithm for tau decays and details how it was instrumental in providing a measurement of Z decay to tau lepton pairs. The reliability of the analysis is fully established by this measurement before the Higgs boson decay to tau lepton pairs is considered. The work described here continues to serve as a model for analysing CMS Higgs to tau leptons measurements.

Search for a Heavy Neutral Particle Decaying to E Mu, E Tau, Or Mu Tau in Pp Collisions at {u221A}s

Search for a Heavy Neutral Particle Decaying to E Mu, E Tau, Or Mu Tau in Pp Collisions at {u221A}s PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
This Letter presents a search for a heavy neutral particle decaying into an opposite-sign different-flavor dilepton pair, e±?∓, e±?∓, or ?±?∓ using 20.3 fb-1 of pp collision data at √s=8 TeV collected by the ATLAS detector at the LHC. The numbers of observed candidate events are compatible with the standard model expectations. Limits are set on the cross section of new phenomena in two scenarios: the production of ????????? in R-parity-violating supersymmetric models and the production of a lepton-flavor-violating Z' vector boson.

Decays of the Tau Lepton

Decays of the Tau Lepton PDF Author: Patricia Burchat
Publisher: Ann Arbor, Mich. : University Microfilms International
ISBN:
Category : Leptons (Nuclear physics)
Languages : en
Pages : 292

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Book Description


Search for a Heavy Neutral Particle Decaying to E[mu], E[tau], Or [mu][tau] in Pp Collisions at [arrow]"

Search for a Heavy Neutral Particle Decaying to E[mu], E[tau], Or [mu][tau] in Pp Collisions at [arrow] Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Decays of the Heavy Lepton, Tau (1785)

Decays of the Heavy Lepton, Tau (1785) PDF Author: Craig Alan Blocker
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 264

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Chaptong sani

Chaptong sani PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Search for Heavy Resonances Decaying to Tau Lepton Pairs in Proton-proton Collisions at $\sqrt{s}$

Search for Heavy Resonances Decaying to Tau Lepton Pairs in Proton-proton Collisions at $\sqrt{s}$ PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
A search for heavy resonances that decay to tau lepton pairs is performed using proton-proton collisions at \sqrt{s}$ = 13 TeV. The data were collected with the CMS detector at the CERN LHC and correspond to an integrated luminosity of 2.2 inverse femtobarns. The observations are in agreement with standard model predictions. An upper limit at 95% confidence level on the product of the production cross section and branching fraction into tau lepton pairs is calculated as a function of the resonance mass. For the sequential standard model, the presence of Z' bosons decaying into tau lepton pairs is excluded for Z' masses below 2.1 TeV, extending previous limits for this final state. For the topcolor-assisted technicolor model, which predicts Z' bosons that preferentially couple to third-generation fermions, Z' masses below 1.7 TeV are excluded, representing the most stringent limit to date.

Search for a Heavy Neutral Particle Decaying to E Mu, E Tau, Or Mu Tau in Pp Collisions at Root S

Search for a Heavy Neutral Particle Decaying to E Mu, E Tau, Or Mu Tau in Pp Collisions at Root S PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description