David Ross Boyd Professor
My research is in Experimental Particle Physics. I am currently studying data from the ATLAS detector using the Large Hadron Collider (LHC) at CERN laboratory near Geneva, Switzerland. This is the world's best instrument for testing the predictions of the Standard Model of elementary particles and fields and to look for experimental deviations from those predictions.
The LHC is the highest energy particle collider in the world and has the potential of discovering new phenomena which may extend or supersede the standard model. Studies indicate that answers to fundamental questions about the nature of mass, the asymmetry between matter and antimatter, and even the particles that make up the dark matter in the universe may be discovered at the LHC.
With the discovery of the Higgs Boson at the LHC in 2012, we now must determine if there is a single standard model Higgs Boson or a family of Higgs Bosons. Using ATLAS data from the LHC I am currently involved research looking for evidence of non-standard model Higgs Bosons decaying to two charged leptons and two neutrinos. I am also making precision measurements of the Higgs Boson to determine if it is exactly the predicted standard model particle, or has some properties not consistent with those predicted.
With the excellent performance of the LHC, the future potential for the discovery and observation of new and interesting phenomena in the field of elementary particles and fields looks extremely promising. It is an exciting time to be doing experimental physics in this field.
"Observation of the associated production of a top quark and a Z boson in pp collisions at √s= 13 TeV with the ATLAS detector," ATLAS Collaboration, Journal High Energy Physics, 124, (2020) DOI: 10.1016/j.physletb.2018.03.023
"Search for large missing transverse momentum in association with one top-quark in proton-proton collisions at √s = 13 TeV with the ATLAS detector," ATLAS Collaboration, Journal of High Energy Physics, 41, (2019) DOI: 10.1007/JHEP05(2019)041
"Measurement of the production cross-section of a single top quark in association with a Z boson in proton–proton collisions at 13 TeV with the ATLAS detector," ATLAS Collaboration, Journal of High Energy Physics, 780, (2018) DOI: 10.1016/j.physletb.2018.03.023
"Measurement of the t ¯ t production cross section in the τ + jets final state in p p collisions at √ s = 8 TeV using the ATLAS detector," ATLAS Collaboration, Physical Review D, 95, (2017) DOI: 10.1103/PhysRevD.95.072003
"Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC ," ATLAS Collaboration, Physics Letters B, 716(1), 1-29, (2012) arXiv: arXiv:1207.7214 [hep-ex] DOI: 10.1016/j.physletb.2012.08.020
"Measurement of the Dijet Invariant Mass Cross Section in p-p̅ Collisions at √s =1.96 TeV," DØ Collaboration, Phys. Lett. B, 693, 531, (2010) ADS: 2010PhLB..693..531D
"Measurement of the Inclusive Jet Cross Section in p-p̅ Collisions √s =1.96 TeV," DØ Collaboration, Phys. Rev. Lett., 101, 062001, (2008) ADS: 2008PhRvL.101f2001A