Rutgers D0 Physics

Welcome to the Rutgers University Experimental High Energy Physics D0 Research page. D0 is an experiment at Fermilab, which is currently home to the world's most powerful particle accelerator called the Tevatron. The Tevatron accelerates protons and antiprotons close to the speed of light, and then makes them collide head-on inside the D0 detector. The D0 detector is used to study the products of such collisions. By doing this we try to reconstruct what happened in the collision and ultimately try to figure out how matter is put together and what forces nature uses to create the world around us!

People involved in D0:

Faculty:

• Yuri Gershtein

Postdoc:

• Oleksiy Atramentov
• Dan Duggan

Undergrad:

• Dave DeMair

Former Postdoc:

• Andrew Askew (now an assistant professor at FSU)

Former Graduate Student:

• Edgar Carrera (PhD 2008 FSU, now postdoc at Boston U)

Rutgers D0 Physics:

The background-subtracted charge-signed rapidity difference between lepton and photon. The black points represent the data, black error bars are the total uncertainties, and the shaded areas are the systematic uncertainties. The solid line is the distribution predicted by the SM (chi^2 test using full covariance matrix yields 17 for 12 degrees of freedom). Reference

The excluded region of possible masses of the lightest chargino and the dark photon for B=0.5 are shown as the shaded region. The dash-dotted line is the expected limit, and the vertical black line shows the diphoton exclusion. Reference

Publications:

Standard Model:

• First Study of the Radiation-Amplitude Zero in Wgamma Production and Limits on Anomalous WWgamma Couplings at sqrt(s) =1.96TeV ,
  Phys. Rev. Lett. 100, 241805 (2008)
• Measurement of the Electron Charge Asymmetry in PPbar --> W+X --> e nu + X Events at sqrt(s)=1.96TeV ,
  Phys. Rev. Lett. 101, 211801 (2008)
• Measurement of the PPbar --> WZ+X cross section at sqrt(s)=1.96TeV and limits on WWZ trilinear gauge couplings ,
  Phys. Rev. D 76, 111104(R) (2007)

Higgs Searches:

• Search for Decay of a Fermiophobic Higgs Boson h_f --> gamma gamma with the D0 Detector at sqrt(s)=1.96TeV ,
  Phys. Rev. Lett. 101, 051801 (2008)

Supersymmetry:

• Search for supersymmetry in di-photon final states at sqrt(s)=1.96TeV,
  Phys. Lett.B 659, 856 (2008)

Exotic:

• Search for Dark Photons from Supersymmetric Hidden Valleys ,
  Phys. Rev. Lett. 103, 081802 (2009)
• Search for Long-Lived Particles Decaying into Electron or Photon Pairs with the D0 Detector ,
  Phys. Rev. Lett. 101, 111802 (2008)
• Search for Large Extra Dimensions via Single Photon plus Missing Energy Final States at sqrt(s)=1.96TeV ,
  Phys. Rev. Lett. 101, 011601 (2008)
• Search for particles decaying into a Z boson and a photon in PPbar collisions at sqrt(s)=1.96TeV,
  Phys. Lett. B 641, 415 (2006)