JOSH MCFAYDEN THESIS

Heavy flavour modelling Heavy flavour production modelling and the associated systematic uncertainties are important for many analyses. Dispatched from the UK in 3 business days When will my order arrive? I was MC production coordinator from September January The thesis focuses on searches for stop and sbottom squarks, the SUSY partners of the top and bottom quarks, which are expected to be lighter than the partners of the first and second generation quarks and therefore good candidates for the first evidence of SUSY. Product details Format Paperback pages Dimensions x x It describes novel techniques for estimating and rejecting the Standard-Model backgrounds to searches for these particles. Measurement of SM VH to bb production is essential to precisely measure Higgs coupling to fermions, a crucial remaining piece of the SM.

I also provided estimation of the QCD background for the stop analysis using a data driven method. NLO merging schemes are the cutting edge technology for such samples and for Run 2 the implemen- tation of these schemes is essential to improve modelling and reduce systematic uncertainties. By using our website you agree to our use of cookies. This will help to constrain the MC gesensitivity can be found with sufficient data. The thesis focuses on searches for stop and sbottom squarks, the SUSY partners of the top and bottom quarks, which are expected to be lighter than the partners of the first and second generation quarks and therefore good candidates for the first evidence of SUSY.

In the future, I am interested in developing searches that consider more challenging final states such as electroweak SUSY particle production and searches involving a Higgs boson in the SUSY particle decay chain, especially in the H to bb decay mode.

Research Interests

I have also contributed significantly to development of MC generators, improving MC modelling and understanding of the corresponding uncertainties. This included searches for direct third generation SUSY particle pair production stop and sbottom in the jets and missing transverse momentum final state.

  PREAP GEOMETRY HOMEWORK 1.1

With this new NLO regime computation of increasingly complicated processes is required and is a significant bottleneck for experiments.

Product details Format Paperback pages Dimensions x x These were some of the most important searches towards the end of Run 2 as naturalness arguments suggested that if SUSY exists lower mass stops and sbottoms should be accessible with the data available.

I was MC production johs from September January It describes novel techniques for estimating mcfaydeen rejecting the Standard-Model backgrounds to searches for these particles. Other books in this series.

josh mcfayden thesis

Search for heavy resonances decaying to a W or Z boson and a Higgs boson in final states with leptons and b-jets in Measurement of SM VH to bb production is essential to precisely measure Higgs coupling to fermions, a crucial remaining piece of the SM. The group is responsible for the development and validation of MC generators and samples for analyses.

I led the production of ttV MC samples including determination of generator level systematic uncertainties that are vital for a huge number of ATLAS analyses and was recently an editor of a public note documenting the current status of these samples in ATLAS. In both analyses I introduced and optimised new kinematic variables for discrimination between signal and background that became essential for the sensitivity of the analysis. The thesis focuses on searches for stop and sbottom squarks, the SUSY partners of the top and bottom quarks, which are expected to be lighter than the partners mcfqyden the first and second generation quarks and therefore good candidates for the first evidence of SUSY.

I also provided estimation of the QCD background for the stop analysis using a data driven method. I was an editor for the internal documentation for both the 7 and 8 TeV analyses which both set world-leading limits at the time for stop pair production in the high stop mass region.

josh mcfayden thesis

My thesis was awarded a Springer thesis prize, the published Springer book can be found here. All in all, the thesis describes three different world-leading analyses in both Standard Model and SUSY physics and therefore represents a major contribution to the field.

  ROCA THESIS A5A1150C00

I am a member of the MCNet collaboration which is dedicated to developing and supporting general-purpose Monte Carlo event generators throughout the LHC era and beyond. It is also responsible for the setting of common recipes for theoretical systematic joosh. Lars Von Der Josn.

Josh McFayden – Research

By using our website you agree to our use of cookies. NLO merging schemes are the cutting edge technology for such samples and for Run 2 the implemen- tation of these schemes is essential to improve modelling and reduce systematic uncertainties.

josh mcfayden thesis

I led the ATLAS all-hadronic stop analysis resulting in two publi- cations, one each from the and datasets. I have made significant contributions to the development of new and more advanced MC generator configurations. Dynamic Modeling of Complex Industrial Processes: This will help to constrain the MC gesensitivity can be found with sufficient data. Both processes are dominant backgrounds in many SUSY searches.

Third generation SUSY and t-t +Z production : Josh McFayden :

The stop squark analysis described, with substantial leading contributions from yhesis author, is the first search for these particles at the LHC to use the jets plus missing transverse energy plus 0-lepton signature and provides the world’s best limits on the stop mass for light neutralino LSPs.

Heavy flavour modelling Heavy flavour production modelling and the associated systematic uncertainties are important for many analyses. Table of contents Introduction and Theoretical Background.

Dispatched from the UK in 3 business days When will my order arrive? This is currently poorly constrained by data resulting in large systematic uncertainties. Home Contact us Help Free delivery worldwide.