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LArg 5% dead FEBs problem
https://www.hep.phy.cam.ac.uk/~lester/ATLAS/index.html10 Dec 2009: Furthermore, we found what may be a new diagnostic plot for MET which allows us to make an eta-phi map of the energy scale contributing to MET for the leading -
PandoraPFA
https://www.hep.phy.cam.ac.uk/~thomson/pandoraPFA/24 Nov 2009: A new implementation is under development. In the meantime, either use the stable tagged version or the development version below:. -
Bryan Webber: Top Physics Simulations CERN Top Quark Institute ...
https://www.hep.phy.cam.ac.uk/theory/webber/WebberTopInst09.pdf8 Oct 2009: ISR, decay, interference? Spin correlations are significant. Sensitive to new physics. ... Testing ground for new physics searches. MT2, global inclusive observables,. 39. -
pp2004_beyond.dvi
https://www.hep.phy.cam.ac.uk/~thomson/lectures/partIIparticles/pp2004_beyond.pdf28 Nov 2009: By making precise measurements we are sensitive toparticles which are not being produced directly - thusplacing constraints on possible new particles/physicsbeyond the Standard Model. ... New acceleratorbased experiments coming online soon (e.g. -
Lecture2.dvi
https://www.hep.phy.cam.ac.uk/theory/webber/IPMUlect2.pdf15 Sep 2009: V V V SUSY trilepton Done. V V bb̄ VBF H V V , tt̄H, new physics DoneV V 2 jets VBF H V V VBFV 3 jets various new physics signatures ... 4 jets various new physics signatures gg gggg. “Done” does not necessarily mean a (parton-level) event -
pp2004_rqm.dvi
https://www.hep.phy.cam.ac.uk/~thomson/lectures/partIIparticles/pp2004_rqm.pdf28 Nov 2009: Since are matrices, need 2 componentwave-functions - WEYL SPINORS. The wave-function is forced to have a new degree offreedom - the spin of the fermion. -
MC4BSM3 Bryan Webber MC Theory Overview • General-purpose event ...
https://www.hep.phy.cam.ac.uk/theory/webber/MC4BSMbw.pdf8 Oct 2009: old, intermediate & new models1,11,21 Multiple-Parton Scattering on, for. old, intermediate & new modelsMSTP(82) 1. ... New event generator, written from scratch in C++. Matrix elements from AMEGIC,combined with own parton shower implementation. -
ParticleExchange
https://www.hep.phy.cam.ac.uk/~thomson/lectures/partIIIparticles/Handout3_2009.pdf28 Nov 2009: If we are then presented with a new Feynman diagram we don’t want to go through the full calculation again. -
Black Holes at Colliders CERN 23/02/09 Phenomenology of Black ...
https://www.hep.phy.cam.ac.uk/theory/webber/BH_LHC2FC.pdf8 Oct 2009: 27. Black Holes at Colliders CERN 23/02/09. New CHARYBDIS2 parameters. 28. ... discussed and a new technique has been introduced. This new technique has been shown. -
Particle Flow Calorimetry and ILC Detector Design
https://www.hep.phy.cam.ac.uk/~thomson/talks/PFA_Plenary_Thomson.pdf30 Sep 2009: PFA can achieve <4 % jet energy resolution for new particle decays• Gives few % mass resolution for new particle decays • Sufficient to separate W/Z for gauge bosons produced in association. ... Properly designed code Increased flexibility – needed -
Lecture1.dvi
https://www.hep.phy.cam.ac.uk/theory/webber/IPMUlect1.pdf10 Sep 2009: Due to successive. branching, a parton cascade or shower develops. Each outgoing line is source of new. -
WeakLeptons
https://www.hep.phy.cam.ac.uk/~thomson/lectures/partIIIparticles/Handout10_2009.pdf28 Nov 2009: term to allow for parity violation. New structure function. •For anti-neutrino scattering new structure function enters with opposite sign. -
Hadronization ECT* 08 Bryan Webber Hadronization: Concepts and Models …
https://www.hep.phy.cam.ac.uk/theory/webber/TrentoHadro.pdf8 Oct 2009: fragmentation!New feature: universalGluon = kink on string the string effect. -
pp2004_qcd.dvi
https://www.hep.phy.cam.ac.uk/~thomson/lectures/partIIparticles/pp2004_qcd.pdf28 Nov 2009: crease linearly with separa-tion. When. new pairs can becreated. -3. -2. -
ElectronProton
https://www.hep.phy.cam.ac.uk/~thomson/lectures/partIIIparticles/Handout5_2009.pdf28 Nov 2009: the new term:. Prof. M.A. Thomson Michaelmas 2009 165. •The above differential cross-section depends on a single parameter. -
QCD Effects in Particle Searches Bonn 07/12/09 Bryan Webber ...
https://www.hep.phy.cam.ac.uk/theory/webber/QCDinSearches.pdf6 Dec 2009: QCD Effects in Particle Searches Bonn 07/12/09. Bryan Webber. 1. QCD Radiative Effects in New Particle Searches. ... QCD Effects in Particle Searches Bonn 07/12/09. Conclusions. 49. New ideas on reducing ISR jet contamination. -
Prof. M.A. Thomson Michaelmas 2009 451 Particle PhysicsMichaelmas…
https://www.hep.phy.cam.ac.uk/~thomson/lectures/partIIIparticles/Handout13_2009.pdf28 Nov 2009: The new diagram interferes negatively with the above two diagrams fixing the unitarity problem. ... The new boson is associated with a new gauge symmetry similar to thatof electromagnetism : U(1)Y. -
IOP HEPP 2009 LHC Phenomenology Phenomenology for LHC: A ...
https://www.hep.phy.cam.ac.uk/theory/webber/BWIoPHEPP09.pdf8 Oct 2009: E.g. new channels at NLO. Sorry, just NLO! LO rescaled to fit cross section. ... 9. pp bb̄bb̄ Higgs and new physics signatures. Calculations beyond NLO added in 2007. -
Prof. M.A. Thomson Michaelmas 2009 175 Particle PhysicsMichaelmas…
https://www.hep.phy.cam.ac.uk/~thomson/lectures/partIIIparticles/Handout6_2009.pdf28 Nov 2009: For inelastic scattering introduce four new kinematic variables:. Define:Bjorken x (Lorentz Invariant). ... Relationships between Kinematic Variables. Prof. M.A. Thomson Michaelmas 2009 179. •Can rewrite the new kinematic variables in terms of the -
https://www.hep.phy.cam.ac.uk/~thomson/pandoraPFA/PandoraPFAProcessor.…
https://www.hep.phy.cam.ac.uk/~thomson/pandoraPFA/PandoraPFAProcessor.cc24 Nov 2009: coded numbers removed) // : handle new DHCAL // v03-00-01 : Count tail catcher hits separately in cluster energy by // subdetector counts // : Tidy up hit energy correction code and make more flexible // ... 00-00 : New fully ILD compatible version // : -
Publications List (Prof Mark Andrew Thomson) Publication List In ...
https://www.hep.phy.cam.ac.uk/~thomson/publications/publis.pdf14 Nov 2009: 79] “Decay-mode independent searches for new scalar bosons with the OPAL detector atLEP”,OPAL Collaboration, G. ... OPAL Collaboration, G. Abbiendi et al.,Phys. Lett. B476 (2000) 256-272. [143] “Search for New Physics in Rare B Decays”,OPAL -
https://www.hep.phy.cam.ac.uk/~thomson/pandoraPFA/ProtoCluster.cc
https://www.hep.phy.cam.ac.uk/~thomson/pandoraPFA/ProtoCluster.cc24 Nov 2009: float approach = genericDistanceToTrackSeed(_hitsByPseudoLayer[searchLayer][ihit],distance); if(approach1.)check = true; } } // New style tracking if(_trackingWeight==2){ if(searchLayer=2)check=true; for(int il = searchLayer-3; ilsearchLayer;il++){ -
Mass & Spin Determination KEK 18/09/2009 Bryan WebberCambridge…
https://www.hep.phy.cam.ac.uk/theory/webber/KEK_BW.pdf29 Sep 2009: MT2 will be an important observable. New ideas on reducing ISR jet contamination. ... massive new particle A. We assume that the masses of the four unknown particles A, B, C. -
Quarks
https://www.hep.phy.cam.ac.uk/~thomson/lectures/partIIIparticles/Handout7_2009.pdf28 Nov 2009: Now add an additional up or down quark. From each of the above 4 statesget two new isospin states with. -
Prof. M.A. Thomson Michaelmas 2009 243 Particle PhysicsMichaelmas…
https://www.hep.phy.cam.ac.uk/~thomson/lectures/partIIIparticles/Handout8_2009.pdf28 Nov 2009: Gluon Self-Interactions Two new vertices (no QED analogues). triple-gluonvertex quartic-gluonvertex. In addition to quark-quark scattering, therefore can have gluon-gluon scattering. -
Dirac
https://www.hep.phy.cam.ac.uk/~thomson/lectures/partIIIparticles/Handout2_2009.pdf28 Nov 2009: Introduce a new concept “HELICITY”. Helicity plays an important role in much that follows. ... Introduce a new 4x4 operator:. where are the Pauli spin matrices: i.e. -
pp2004_intro.dvi
https://www.hep.phy.cam.ac.uk/~thomson/lectures/partIIparticles/pp2004_intro.pdf28 Nov 2009: E-M s. WEAK s. Accelerator physics - particle scattering:Direct production of new massive particles in. -
ElectroWeak
https://www.hep.phy.cam.ac.uk/~thomson/lectures/partIIIparticles/Handout14_2009.pdf28 Nov 2009: ONLY 3 GENERATIONS (unless a new 4th generation neutrino has very large mass). -
NeutrinoOscillations
https://www.hep.phy.cam.ac.uk/~thomson/lectures/partIIIparticles/Handout11_2009.pdf28 Nov 2009: taking data: K2K, MINOS, CNGS, Project X• Opening up a new era in precision neutrino physics.
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