Essays about: "dijet"

Showing result 1 - 5 of 10 essays containing the word dijet.

  1. 1. Deep Autoencoders for Compression in High Energy Physics

    University essay from Lunds universitet/Partikel- och kärnfysik; Lunds universitet/Fysiska institutionen

    Author : Eric Wulff; [2020]
    Keywords : ATLAS; hadron jet; machine learning; autoencoder; dimensionality reduction; artificial intelligence; high energy physics; data compression; Physics and Astronomy;

    Abstract : Current technological limitations make it impossible to store the enormous amount of data produced from proton-proton collisions by the ATLAS detector at CERN's Large Hadron Collider. Therefore, specialised hardware and software is being used to decide what data, or which proton-proton \textit{collision events}, to save and which to discard. READ MORE

  3. 2. Preliminary studies toward Trigger-Level Analysis with Photons in ATLAS

    University essay from Lunds universitet/Partikel- och kärnfysik; Lunds universitet/Fysiska institutionen

    Author : Leo Östman; [2018]
    Keywords : Physics and Astronomy;

    Abstract : The Trigger-Level Analysis is a strategy for data analysis that enables recording larger amounts of events at the ATLAS experiment than the typical method of reconstructing events offline. This is done by only recording partial information about the event, and using that for analysis. READ MORE

  4. 3. Studies of new light resonances decaying into two hadronic jets produced in association with a radiated jet

    University essay from Lunds universitet/Partikel- och kärnfysik; Lunds universitet/Fysiska institutionen

    Author : Zhiying Li; [2018]
    Keywords : dark matter mediator; ATLAS; dijet ISR jet; light resonance; ISR jet; dijet; trijet final state; kinematics variables; combinatorics; mass combinations; significance; thrust; LHC; CERN; Physics and Astronomy;

    Abstract : This report presents combinatorics studies in the search for a resonance of below 800GeVwhich decay product is a pair of hadronic jets from quarks. The resonance, predicted as a dark matter mediator, has couplings to dark matter particles as well as quarks and gluons. READ MORE

  5. 4. Search for High-Mass Dijet Resonances Decaying into Top Quark Pairs using Machine Learning Techniques in the ATLAS Experiment

    University essay from Lunds universitet/Partikel- och kärnfysik; Lunds universitet/Fysiska institutionen

    Author : Stefio Yosse Andrean; [2018]
    Keywords : ATLAS; LHC; jet; dijet; resonance; top; machine learning; BDT; DNN; topocluster; Physics and Astronomy;

    Abstract : This thesis presents an application of machine learning techniques in a search for a high-mass resonance particle decaying into top quark pairs in high energy dijet events using the ATLAS experiment at the Large Hadron Collider. Top tagging is applied to the dijet events to select the events with top signature and suppress the background, increasing the sensitivity of the search. READ MORE

  6. 5. Development, Testing and Future Outlook of a Penalized Spline as a Representation of the Standard Model Background in Dijet Searches

    University essay from Lunds universitet/Partikel- och kärnfysik; Lunds universitet/Fysiska institutionen

    Author : Alexander Ekman; [2017]
    Keywords : spline; p-spline; SPLINTER; b-spline; penalized spline; standard model; standard model background; SM; SMB; dijet; ATLAS; dark matter; MadGraph; python; Physics and Astronomy;

    Abstract : The aim of this thesis is to develop, test and evaluate a penalized basis spline as a method for representing the Standard Model background in dijet searches from proton-proton collisions at the Large Hadron Collider. Current representations of the Standard Model background are complex and dependent on current assumptions of the Standard Model. READ MORE