Advanced search

Showing result 11 - 15 of 16 essays matching the above criteria.

  1. 11. PARTON SHOWER UNCERTAINTIES ON THE TOP MASS

    University essay from Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

    Author : Hristina Georgieva Hristova; [2019]
    Keywords : top quark mass; uncertainty; Lund Monte Carlo; Pythia; Physics and Astronomy;

    Abstract : The non-Abelian QCD nature allows for pp collisions to contain gluon emissions off quarks as well as gluon branchings into further gluons — a structure that can be described by the parton shower model. In this project we present the results of the impact the shower has on the reconstruction of the W-boson and top quark masses using Pythia, the Lund Monte Carlo event generator. READ MORE

  3. 12. Studies of Dark Matter Signals at the LHC

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

    Author : Martin Angelsmark; [2017]
    Keywords : Large Hadron Collider; resolution; detector; ATLAS; physics; particle; dark; matter; Martin; Angelsmark; di-jet; CERN; Physics and Astronomy;

    Abstract : Standard matter, the matter that we can see, only make up about 6% of the universe. Astronomical observations have found that there exist other matter, which is non-luminous, called dark matter. This matter can interact gravitationally with standard matter, but it is unknown if it can interact weakly with the help of some other force as well. READ MORE

  4. 13. Parton Shower Algorithms - Possible Improvements

    University essay from Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation; Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

    Author : Baptiste Cabouat; [2017]
    Keywords : Parton shower; event generators; Monte Carlo simulations; QCD; Pythia; Final-state radiation; Initial-State radiation; evolution variable; dipole; recoils; deep inelastic scattering; Physics and Astronomy;

    Abstract : In this Master thesis, two directions have been explored to improve the current parton shower algorithm of the event generator Pythia. Firstly, three choices of transverse-momentum-ordered evolution variable have been studied for final-state radiation in order to allow more flexibility within the algorithm. READ MORE

  5. 14. (S)examensarbete

    University essay from Konstfack/Textil

    Author : Cecilia Pfaff; [2016]
    Keywords : art; textile art; knitting; crochet; sex; sexy; sexiness; Instagram; selfie; performance; sun chair; craftivism; Dolly Parton; body; feminism; #xxxjobb; #123sexy; konst; textilkonst; stickning; virkning; sex; sexig; sexighet; Instagram; selfie; performance; solstol; craftivism; Dolly Parton; kropp; feminism; #xxxjobb; #123sexy;

    Abstract : Preface: Thank you to all the women in my life who have supported me through this process; to my mother, to my other mother (Susan), to Kara, to Jordan and, of course, to Dolly. Summary: (S)examensarbete is a journey through which I have questioned if knitting can be sexy. READ MORE

  6. 15. A new dipole-based jet clustering algorithm

    University essay from Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Author : Toni Sculac; [2014]
    Keywords : jet; algorithm; dipole; Physics and Astronomy;

    Abstract : Jet production occurs very often in particle physics experiments, and a very good understanding of how partons evolve into jets has been achieved over the last 30 years. The main tool in jet analysis is jet clustering algorithms, and because the problem of clustering particles back to initial partons can not be solved exactly, many different algorithms have been developed. READ MORE