Sökning: "Charged Higgs"

Visar resultat 1 - 5 av 17 uppsatser innehållade orden Charged Higgs.

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

   Master-uppsats, Lunds universitet/Partikel- och kärnfysik; Lunds universitet/Fysiska institutionen

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

   Sammanfattning : 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. LÄS MER

3. 2. Searching for doubly charged Higgs bosons using same-sign hadronic tau final states - A focused study on the charge-flip background of hadronic taus

   Master-uppsats, Lunds universitet/Partikel- och kärnfysik; Lunds universitet/Fysiska institutionen

   Författare :Shi Qiu; [2019]
   Nyckelord :doubly charged Higgs bosons; neutrino; ATLAS; charge-flip; charge misidentification; Physics and Astronomy;

   Sammanfattning : The search for doubly charged Higgs bosons (H±±) aims at resolving the mass generation mechanism of neutrinos in the Standard Model. The current search by the ATLAS Same-Sign Dilepton group uses the decay product of H±± to a pair of same-sign hadronic τ-leptons, which is an extension of their previous search using same-sign dielectrons and dimuons. LÄS MER

4. 3. Doubly Charged Higgs Signal with Same-Sign Tau-inclusive Dilepton Final States

   Magister-uppsats, Lunds universitet/Partikel- och kärnfysik; Lunds universitet/Fysiska institutionen

   Författare :Simon Arnling Bååth; [2018]
   Nyckelord :ATLAS; same-sign; dilepton; higgs; LHC; signal sample; Physics and Astronomy;

   Sammanfattning : Abstract The current Standard Model of particle physics contains few interactions resulting in a final state with two leptons with the same charge. Any observation of an excess of such same-sign dileptons would be an indication of new physics processes, making it a useful channel when searching for exotic physics. LÄS MER

5. 4. Searching for the charged Higgs boson in the tau nu analysis using Boosted Decision Trees

   Master-uppsats, Uppsala universitet/Högenergifysik

   Författare :Jesper Hallberg; [2016]
   Nyckelord :Higgs; charged higgs; atlas; machine learning; ML; BDT; boosted decision trees; LHC; BSM; BSM physics; standard model; MSSM;

   Sammanfattning : his thesis implements a multivariate analysis in the current cut- based search for the charged Higgs bosons, which are new scalar particles predicted by several extensions to the Standard Model. Heavy charged Higgs bosons (mH± mtop) produced in association with a top quark de- caying via H± → τν are considered. LÄS MER

7. 5. Improving off-shell calculations of charged Higgs to quarks decays

   Kandidat-uppsats, Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation; Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

   Författare :Rasmus Hansen; [2015]
   Nyckelord :Decay; Doublet; Charged; Higgs; Physics and Astronomy;

   Sammanfattning : .... LÄS MER