'3 jet' diaporamas de présentation

CMS QCD physics results

CMS QCD physics results. Olga Kodolova, SINP MSU on behalf of the CMS Collaboration. Outline. Motivation Scope of studies Soft physics Hard physics Summary. QCD is the theory that explains strong interactions as part of the Standard Model. QCD at hadron colliders.

1.32k views • 43 slides

Electromagnetic Interactions

t. Electromagnetic Interactions. Dimensionless coupling constant specifying strenght of interaction between charged particles and photons Fine structure costant: (it determines spin-orbit splitting in atomic spectra) Em fields have vector transformation properties.

473 views • 31 slides

Event shape distributions at LEP

407 views • 24 slides

Top mass reconstruction at the LHC

Top mass reconstruction at the LHC. Chris Tevlin The University of Manchester. Motivation - Why the top mass?. Measure properties of a quark (very short lifetime) Constrain the mass of the SM Higgs Also many BSMs - expect new physics to couple strongly to top

316 views • 21 slides

Inter-string Bose-Einstein Correlations in Hadronic Z Events using the L3 Detector at LEP Qin Wang

Inter-string Bose-Einstein Correlations in Hadronic Z Events using the L3 Detector at LEP Qin Wang Radboud University Nijmegen. Motivation of inter-string study Comparison of 2-jet and 3-jet events Comparison of quark and gluon jet Conclusion. Motivation of our inter-string study.

299 views • 17 slides

Tancredi.Carli@cern.ch

303 views • 17 slides

QCD Multijet Study at CMS

Outline Motivation Definition of various multi-jet variables Tevatron results Detector effects Energy and Position resolution Systematic uncertainties Trigger Bias Event selection Comparison with Matrix Element caculations

247 views • 17 slides

Studies of the hadronic decays of Z bosons at LEP

Alessandro De Angelis University of Udine and INFN Trieste. Studies of the hadronic decays of Z bosons at LEP. 105) OPAL: Charge multiplicities in Z decays to u,d,s pairs 163) ALEPH: Inclusive Production of the w (782)

242 views • 13 slides

W+jets observables

W+jets observables. J. Huston Michigan State University LHC EWWG meeting 22/05/12. Cuts on jets. p T cuts on jets: m ultiple jet thresholds p hysics can be different for different thresholds (SCET resummation studies) Jet algorithms antikT ( kT , SISCone ?)

192 views • 10 slides