Darien Wood

Experimental Particle Physics

Darien Wood

PhD University of California at Berkeley, 1987

Research Summary:

Prof. Wood is currently studying high energy (2 TeV) collisions of protons and antiprotons with the DØ Experiment at the Tevatron collider at Fermilab and higher energy (7TeV) collisions of protons with the CMS experiment at the Large Hadron Collder at CERN.

DØ finished taking data in 2011.  In its nearly two decades of operation, the experiment observed the elusive top quark and measured its mass, and made many precise measurements of the properties of other particles. Prof. Wood’s particular area of interest is the study of the electroweak sector of particles, in particular the W and Z bosons, the carriers of the weak force and the Higgs boson, the particle responsible for their masses. Prof. Wood led the DØ Experiment as co-spokesperson from 2007 to 2009. In the past he has worked on the system to detect muons, and he led an effort to upgrade the experimental “trigger” system which decides (in a few microseconds) which events to discard and which ones to retain for further study.

CMS began operating with high energy colliding beams in 2010. The experiment is studying quark and gluon scattering at the highest available energies, and is searching for new particles. Prof. Wood is leading a project to improve the detection of muons in the forward region of the detector and is studying the production of multiple Z bosons and searching for rare decays of the Higgs boson into candidates for Dark Matter.

Before joining the DØ Experiment, Prof. Wood worked on the UA2 experiment at CERN, which was also dedicated to the study of proton-antiproton collisions. Before that, he studied high energy electron-positron collisions at SLAC in California..

Recent Publications:

“Observation of ZZ Production in ppbar Collisions at sqrt(s) = 1.96 TeV ” Phys. Rev. Lett. 101, 171803 (2008).

“”Evidence for Production of Single Top Quarks and First Direct Measurement of |V_tb|”, Phys. Rev. Lett. {98}, 181902 (2007).

“”The Upgraded D0 Detector” Nucl. Instr. and Methods A {565}, 463 (2006).

“Search for the Standard Model Hhiggs Boson in the ppbar->ZH->nu nubar b bbar Channel” Phys. Rev. Lett. {97}, 161803 (2006).

“The RunIIb Trigger Upgrade for the DØ Experiment” IEEE Trans. of Nucl. Science {51} 340 (2004).

Related links:

National Science Foundation discovery video featuring Prof. Wood Fermilab home page