Heng Fai Chang - Profile on Academia.edu (original) (raw)

Master Thesis by Heng Fai Chang

Research paper thumbnail of A STUDY OF FEYNMAN INTEGRAL AND SOFT COLLINEAR EFFECTIVE FIELD THEORY

Minkowskian metric g µν = + − −− Scalar propagator i p 2 +i 0 To avoid the confusion with various... more Minkowskian metric g µν = + − −− Scalar propagator i p 2 +i 0 To avoid the confusion with various dimensional regulators, we shall use i 0 to denote the infinitesimal imaginary part in the denominator of a propagator

Undergraduate Thesis by Heng Fai Chang

Research paper thumbnail of Search for new phenomena in dilepton final states of different lepton flavor in pp collision at √ s = 13 TeV with the ATLAS detector

In this report, we review several classes of models beyond the Standard Model of Particle Physics... more In this report, we review several classes of models beyond the Standard Model of Particle Physics and how these models predict new heavy resonances decaying into two charged leptons of different flavor. We then present our latest progress on the experimental search for a heavy Z bo-son, Quantum Black Holes, Supersymmetric tau neutrino in three Lepton Flavor Violating channels, eµ, eτ , µτ using a dataset of 34.5 fb −1 collected with the ATLAS detector at the LHC operating at √ s = 13 TeV. No significant excess over the expected Standard Model background is observed in any of the three LFV channels. The prospects for setting the 95% Confidence Level limits on the masses of various heavy particles are also discussed.

CERN Summer Student Internship by Heng Fai Chang

Research paper thumbnail of Search for Supersymmetry in ATLAS with two or three leptons: background studies

A study of the modeling of t ¯ tV (V = W or Z) production at √ s = 13 TeV has been conducted. Thi... more A study of the modeling of t ¯ tV (V = W or Z) production at √ s = 13 TeV has been conducted. This is one of the main backgrounds in the search for Supersymmetry with same-sign dileptons or three leptons final state.

Research paper thumbnail of A STUDY OF FEYNMAN INTEGRAL AND SOFT COLLINEAR EFFECTIVE FIELD THEORY

Minkowskian metric g µν = + − −− Scalar propagator i p 2 +i 0 To avoid the confusion with various... more Minkowskian metric g µν = + − −− Scalar propagator i p 2 +i 0 To avoid the confusion with various dimensional regulators, we shall use i 0 to denote the infinitesimal imaginary part in the denominator of a propagator

Research paper thumbnail of Search for new phenomena in dilepton final states of different lepton flavor in pp collision at √ s = 13 TeV with the ATLAS detector

In this report, we review several classes of models beyond the Standard Model of Particle Physics... more In this report, we review several classes of models beyond the Standard Model of Particle Physics and how these models predict new heavy resonances decaying into two charged leptons of different flavor. We then present our latest progress on the experimental search for a heavy Z bo-son, Quantum Black Holes, Supersymmetric tau neutrino in three Lepton Flavor Violating channels, eµ, eτ , µτ using a dataset of 34.5 fb −1 collected with the ATLAS detector at the LHC operating at √ s = 13 TeV. No significant excess over the expected Standard Model background is observed in any of the three LFV channels. The prospects for setting the 95% Confidence Level limits on the masses of various heavy particles are also discussed.

Research paper thumbnail of Search for Supersymmetry in ATLAS with two or three leptons: background studies

A study of the modeling of t ¯ tV (V = W or Z) production at √ s = 13 TeV has been conducted. Thi... more A study of the modeling of t ¯ tV (V = W or Z) production at √ s = 13 TeV has been conducted. This is one of the main backgrounds in the search for Supersymmetry with same-sign dileptons or three leptons final state.