Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 41 for “"8 TeV"”.
-
Identifying fake leptons in ATLAS while hunting SUSY in 8 TeV proton-proton collisions
For several theoretically and experimentally motivated reasons, super- symmetry (SUSY) has for some time been identified as an interesting candidate for a theory of fundamental particle physics beyond the Stan- dard Model. The ATLAS collaboration, of which I am a member, possess a detector emplaced …
-
A search for Z' bosons in the dimuon decay channel in 8 TeV proton-proton collisions
… of $p$-$p$ collisions at $\sqrt{s} = 8 $ TeV, produced during the 2012 run at the Large Hadron Collider at CERN, using the ATLAS detector to record the collision products. The search proceeds via a comparison of the reconstructed dimuon invariant mass distribution with the expected …
-
Search For Contact Interactions In The Dielectron Channel In P-P Collisions At Sqrt(s) = 8 Tev At Cms
… utilizes data recorded in 2012 at sqrt(s) = 8 TeV, corresponding to an integrated luminosity of 19.6 fb-1. The dielectron mass spectrum above</p> <p>300 GeV shows no significant deviation from the prediction of the Standard Model. In the framework of the left-left iso-scalar model of eeqq …
-
Search For Contact Interactions Using The Dimuon Mass Spectrum In P-P Collisions At Sqrt(s) = 8 Tev At Cms
… using the data collected in 2012 at sqrt(s) = 8 TeV corresponding to an integrated luminosity of 20.6 fb-1. The comparison of the observed mass spectrum with fully simulated Monte Carlo predictions for contact interactions in the context of the left-left isoscalar model with compositeness energy …
-
Measurement of the tt̅W and tt̅Z Cross Sections using Proton-Proton Collisions at √s = 8 TeV with the ATLAS Detector
… of data from proton-proton collisions at √s = 8 TeV collected by the ATLAS detector at the Large Hadron Collider. Four different final states are considered: two opposite-sign leptons, two same-sign leptons, three leptons, and four leptons. The t t̅ W and t t̅ Z cross sections are simultaneously …
-
Single muon production as a function of charged-particle multiplicity in proton-proton collisions at 8 TeV with ALICE at the LHC
… reconstructed in proton-proton collisions at 8 TeV.
-
Search for Diboson resonances in 8 tev and 13 tev proton-proton collisions at the large hadron collider with the atlas detector
… collisions with a center of mass energy √s = 8 TeV. This search looks for the decay channels G∗ → WW → lνjj and W′ → WZ → lνjj. No evidence for resonant diboson production is observed, and resonance masses below 760 GeV and 1490 GeV are excluded at 95% confidence level for the spin-2 …
-
Measurements of ψ(2S) and X(3872) → J/ψ π+π- production in pp collisions at √s = 8 TeV with the ATLAS detector
… using 11.4 fb−1 of pp collisions at √ s = 8 TeV by the ATLAS detector at the LHC. The ratio of cross sections X(3872)/ψ(2S) is also given, separately for prompt and non-prompt components, as well as the non-prompt fractions of X(3872) and ψ(2S). Assuming independent single effective lifetimes …
-
Evidence for a narrow Higgs-like diphoton resonance with a mass of 125 GeV in pp collisions at [square root of]s = 7 - 8 TeV
… collisions at the LHC at [square root of]s = 7-8 TeV with the CMS detector. Having analyzed data corresponding to 5.1 fb-1 at [square root of]s = 7 TeV (2011) and 5.3 fb-1 at [square root of]s = 8 TeV (2012), a statistically significant excess of events is observed with respect to the background …
-
A Search For New Physics Using tt(bar) Resonances in the Lepton Plus Jets Channel at √(s) = 8 TeV in 20 fb⁻¹ of pp Collision Data at the ATLAS Experiment
… in this dissertation uses 20.3 fb⁻¹ of √s = 8 TeV pp collision data from the ATLAS experiment to search for evidence of new physics in the single-lepton plus jets tt(bar) decay channel. This is done by requiring one electron or muon, large missing transverse momentum and additional hadronic …
-
Statistical interpretation of exotics monojet data in search of an invisibly decaying Higgs Boson
… This study corresponds to 4.7 fb!1 of 7 TeV proton-proton collisions and 20.3 fb!1 of 8 TeV proton-proton collisions. At the time of thesis submission, the 8 TeV results were not unblinded by the ATLAS Collaboration, so toy-data are presented here to demonstrate the procedure. The …
-
Study of the Higgs Boson Produced in Association with a Weak Boson and Decaying to WW* with a Same Sign Dilepton and Jets Final State in √ s =8 TeV pp Collisions with the ATLAS Detector at the LHC
… in the H → W W ∗ decay mode, using 20 fb −1 of 8 TeV data collected in 2012. The specific final state studied in this thesis has the associated W boson and one of the W bosons from the Higgs decaying leptonically, while the last W boson decays hadronically, giving two leptons, jets, and missing …
-
Collider phenomenology of heavy neutrinos
… production of the multilepton events at $8$ TeV with a luminosity of $19.5$ fb$^{-1}$, we derive the direct upper bounds on the light-heavy neutrino mixing parameter as a function of the heavy neutrino mass. Using a variety of initial states such as quark-quark, quark-gluon and gluon-gluon as …
-
Measurement of the Drell--Yan differential cross section with the CMS detector at the LHC
… collision data at √<em>s</em> = 7 and 8\TeV recorded with the Compact Muon Solenoid detector at the CERN Large Hadron Collider during the first years of operation. Measurements of the differential Drell–Yan cross section in the dimuon and dielectron channels covering the dilepton mass …
-
Measurement of the relative width difference of the B0 - B‾0 system with the ATLAS detector
… detector at the LHC in pp collisions at √s=7 TeV and √s=8 TeV is presented. The analysis described in this thesis incorporates results previously published by the ATLAS collaboration while providing greater detail and additional studies. The measured value is ∆Γd/Γd = (−0.1±1.1 (stat.)±0.9 …
-
Observation and examination of a Higgs boson in the ZZ to four lepton channel
… collisions at a center of mass energy of 7 TeV and 19.7 fb- 1 at 8 TeV in a search for decays of the Standard Model (SM) Higgs boson to two Z bosons to four charged leptons. We observe a single excess above background expectation with a significance of 7.4 standard deviations at a mass of …
-
Search for the standard model Higgs Boson in the Z gamma channel
… 1 and 19 fb-1 at center-of-mass energies of 7 TeV and 8 TeV, respectively.
-
Measurement of CP Observables in B- -> D0 K- pi+ pi- Decays
… third taken at center of mass energy sqrt(s) = 7 TeV and the remaining two thirds taken at sqrt(s) = 8 TeV.</p> <p>The data is analyzed for the decays B- → D0 K- π+ π- and B- → D0 π- π+ π-$, </p> <p>with the D0 &rarr K+π-, K+K-, π-π+ or K-π+. </p> <p>The CP violation sensitive observables R_(CP+), …
-
Search for the Higgs boson in its decay into tau leptons at CMS
… of proton collisions at [square root of]s = 7 TeV and 19.5 fb-1 at [square root of]s = 8 TeV. The search is based on di-tau events in which one tau decays into an electron or muon, and the other tau decays into hadrons. The search focuses on Higgs masses between 110 GeV and 145 GeV. The …
-
Top quark mass measurement in the electron+jets decay channel using the Matrix Element Method
… of the year 2012 at a center of mass energy of 8 TeV. Data recorded by the Compact Muon Solenoid at CERN, were filtered in order to isolate collisions giving rise to a top anti-top quark pair. These quarks decay into an electron and four jets. For a recorded luminosity 19.8 fb-1, 8898 events were …
Page 1 of 3