Essays about: "B meson"

Showing result 1 - 5 of 6 essays containing the words B meson.

  1. 1. Explaining B-> D^(*) tau nu Decays with a Two Higgs Doublet Model using the Froggatt-Nielsen Framework

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

    Author : Emil Andersson; [2017]
    Keywords : Two Higgs Doublet Model; 2HDM; Froggatt-Nielsen; Flavon; B-meson; Higgs; Beyond Standard Model; BSM; Theoretical Particle Physics; Physics and Astronomy;

    Abstract : In recent years, the BaBar, Belle and LHCb experiments have observed an excess of $B\to D^{(*)}\tau\nu$ decays compared to Standard Model predictions. In this thesis, we investigate if it is possible to explain this excess with a two Higgs doublet model using the Froggatt-Nielsen framework. READ MORE

  3. 2. Production of φ Mesons as a Function of Multiplicity & Spherocity

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

    Author : Adrian Nassirpour; [2017]
    Keywords : Physics and Astronomy;

    Abstract : The purpose of this project is to further investigate whether the collective behavior observed in high energy proton-proton (p-p) collision can be attributed to the formation of Quark-Gluon Plasma (QGP). This is done by measuring the production rate of the strange φ meson in high multiplicity p-p collisions at √sNN = 13 TeV. READ MORE

  4. 3. RGE properties of 2HDM in relation to data on B->Dtu

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

    Author : Joel Oredsson; [2014]
    Keywords : particle physics; high energy physics; B meson; two Higgs doublet model; 2HDM; Higgs; RGE; BSM; Physics and Astronomy;

    Abstract : In this thesis we investigate the properties of a specific two Higgs Doublet Model (2HDM) that can be used to explain the data on B->Dtu and B->D*tu, which deviate from the Standard Model (SM) by 3.4 sigma. The 2HDM is the simplest extension of the Standard model scalar sector. READ MORE

  5. 4. Charm and bottom production at particle colliders

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

    Author : Fabricio Jimenez; [2014]
    Keywords : High Energy Physics. Collider Physics. Monte Carlo Event Generators. Pythia. Heavy flavours.; Physics and Astronomy;

    Abstract : High energy particle collisions involve complex physics, beyond analytical control. Instead, Monte Carlo event generators like Pythia have been used to simulate particle collisions since decades. A study of the production of heavy quarks (namely, charm and bottom) is presented for two different scenarios: lepton (e+e−) and hadron (pp) collisions. READ MORE

  6. 5. The Rare Decay of the Neutral Pion into a Dielectron

    University essay from Uppsala universitet/Kärnfysik

    Author : Hazhar Ghaderi; [2013]
    Keywords : rare pion decay; Mellin transform; Mellin-Barnes representation; dispersive representation; dispersion relation; Kramers-Kronig relations; Cutkosky cutting rules; Feynman Loop diagram calculations;

    Abstract : We give a rather self-contained introduction to the rare pion to dielectron decay which in nontrivial leading order is given by a QED triangle loop. We work within the dispersive framework where the imaginary part of the amplitude is obtained via the Cutkosky rules. We derive these rules in detail. READ MORE