Essays about: "Hadron"

Showing result 21 - 25 of 144 essays containing the word Hadron.

1. 21. Spin correlations in top quark pair production at the Large Hadron Collider

   University essay from Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

   Author : Simon Ahlstedt; [2022]
   Keywords : Top quarks; Top quark pair production; LHC; Spin correlations; MadGraph5_aMC@NLO; Dilepton decay channel; Leading order; Interference effects; Event generation.; Physics and Astronomy;

   Abstract : In this work we investigate the spin correlation effect of the interference between signal and irreducible background events present in top quark pair production at the LHC at LO in the dilepton channel. To simulate the high energy proton-proton collisions of the LHC, MadGraph5_aMC@NLO framework is used as an event generator. READ MORE

3. 22. Complementarity of high energy and high intensity experiments for dark photon benchmarks

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

   Author : Joshua Greaves; [2022]
   Keywords : Dark matter; LDMX; Dark photon; Complementarity; Snowmass; Relic density; Thermal relic; Relic abundance; Cross section; Constraints; Limits; Minimal models; Energy frontier; Intensity frontier; Madgraph; Madanalysis; Vector mediated; Physics and Astronomy;

   Abstract : Physical phenomena that are unexplained by the Standard Model (SM) of particle physics, are the subject of the area of research known as physics Beyond the Standard Model (BSM). BSM physics contains many Dark Matter (DM) theories which have emerged; from particles such as axions, neutrinos, and Weakly Interacting Massive Particles (WIMPs), to primordial black holes and others. READ MORE

4. 23. Rare Weak Decays of the Omega Baryon

   University essay from Uppsala universitet/Kärnfysik

   Author : Cornelis Johannes Gerardus Mommers; [2022]
   Keywords : hadron; physics; nuclear; particle;

   Abstract : We study rare decays of the Omega baryon using SU(3) chiral perturbation theory, a successfuleffective field theory of quantum chromodynamics at low energies. At leading-order, we calculatethe branching fractions of the decay Ω− → Ξππ for all possible combinations of pions. READ MORE

5. 24. Optimising the present and designing the future: a novel SPS injection system

   University essay from Uppsala universitet/FREIA

   Author : Elias Waagaard; [2022]
   Keywords : Numerical optimisation; injection; Super Proton Synchrotron; neural networks;

   Abstract : The Super Proton Synchrotron (SPS) injection system plays a fundamental role to preserve the quality of injected high-brightness beams for the Large Hadron Collider (LHC) physics program and to maintain the maximum storable intensity. The present system is the result of years of upgrades and patches of a system not conceived for such intensities and beam qualities. READ MORE

6. 25. Study of the doubly charged Higgs boson single production using lepton parton distribution functions with the ATLAS detector

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

   Author : Daniel Magdalinski; [2022]
   Keywords : doubly charged Higgs boson; ATLAS; lepton parton distribution function; same-sign; dilepton; beyond standard model; LHC; Physics and Astronomy;

   Abstract : Searches for the doubly charged Higgs(H±±) aim to find evidence for models that could explain the origin of neutrino masses. Earlier searches at the LHC have used different production processes for the H±±, with the recent development of lepton parton distribution functions new leptonic production processes are able to be studied. READ MORE