Joe Boudreau 

Joe Boudreau

Associate Professor of Physics and Astronomy

200C Allen Hall

University of Pittsburgh

Pittsburgh PA 15260             

 In Pittsburgh:  412 634 9022   At Fermilab: 630 840 5001  At CERN:  41 22 767 5940

email boudreau@pitt.edu

I work on two major world-class experiments in experimental particle physics.  The first is the CDF Experiment at Fermilab. The second is the ATLAS experiment at CERN.  CERN is the French acronym for "The European Center for Particle Physics," which is located in Geneva Switzerland.

Other links to particle physics can be found here.

My current focus is CP violation in the B⁰_s system, a bound state of two rare quarks (b, “bottom”, and s, “strange). The system is particularly sensitive to new particles, new interactions, and new sources of the matter-antimatter asymmetry that may have ultimately generated all the matter we see in the universe. One of the more interesting results from the CDF experiment is the analysis of the decay B⁰_s®J/y f (something we definitely want to follow up at at the next collider, the LHC). Here is a:

· Plain English Explanation for interested nonexperts .

· Another “plain English” explanation.(from CDF)

· Yet another plain english summary…(from D0)

· Web page on the CDF result

· Fulltext of the CDF results both Tagged and Untagged

· Fulltext of the D0 result

· Fulltext of the Babar Result

· Press release, Nature Article, and Commentary : on the Belle result.

· Collection of talks on CP violation in the B⁰_s system and related topics. By me:

o B Physics at the Tevatron[Word97] (at DESY Hamburgh 1 April 2008 and DESY Zeuthen 2 April 2008)

o A New Measurement of DG in the B⁰_s system and the first flavor-tagged determination of bounds on the CP violation parameter b_s [Word97](at Syracuse University Feb 18 2007)

o New Measurements of B⁰_s meson properties from CDF [Word 97] (at Univ. of Victoria Feb 5 2008)

o Looking for CP violation in B⁰_s mesons (at University of Pittsburgh, November 12 2007)

o CP Violation in B⁰_s mesons: Results from a flavor tagged analysis of B⁰_s ® J/y f (at the University of Pennsylvania, April 22, 2008) [Word 97]

· Some of my best friends have also given talks on this…

o Karen Gibson’s wine and cheese at Fermilab, December 14 2007

o Chunlei’s Hopkins talk

o Chunlei’s APS talk

o Chunlei’s Lake Louise talk

o Diego at INFN[PPT][PDF]

o Petar at LBL

o Guillelmo at CERN

o Guillelmo at LHCB

o Gianpiero at Moriond Electroweak, 2008

· By members of the D0 collaboration..

o Bruce Hoeneisen, Wine and Cheese at Fermilab, 22 February 2008

· The UTFit’s “Evidence of New Physics in b®s Transitions” is still perhaps a bit of an overstatement…

· One explanation (from George W.S. Hou): new heavy quarks.

Other recent talks:

· New results in b hadron spectroscopy at the Tevatron (at HCP Elba May 20-26 2007)

Recent Publications:

Measurement of the L^0b Lifetime in L^0b®J/yL^0 in p Collisions at = 1.96 TeV, A. Abulencia et al., The CDF Collaboration, Phys. Rev. Lett. 98, 122001 (2007) Measurement of Exclusive B Lifetimes in the modes B^+®J/yK^+, B^0®J/yK*^0, B^0®J/yKs^0, B^0s®J/yf, and Lb®J/yL, and Measurement of the B^+/B^0, B^0s/B^0, and Lb/B^0 Lifetime Ratios, The CDF Collaboration, CDF Public Note 8524, March 7, 2007 Measurement of Lifetime and Decay-Width Difference in B^0s®J/y f decays, T. Aaltonen et al., The CDF Collaboration, arXiv:0712.2348v1 [hep-ex] 14 Dec 2007, submitted to Physical Review Letters. First Flavor-Tagged Determination of Bounds on the Mixing Induced CP Violation in B^0s®J/yf decays, T. Aaltonen et al., The CDF Collaboration, arXiv:0712.2397v1 [hep-ex] 14 Dec 2007, submitted to Physical Review Letters. Measurement of the Oscillation Frequency, A. Abulencia et al., The CDF Collaboration, Phys. Rev. Lett. 97, 062003 (2006). Observation of Oscillations, A. Abulencia et al., The CDF Collaboration, Phys. Rev. Lett. 97, 242003 (2006). What CDF sees with the Silicon Vertex Trigger, J. Boudreau, Modern Physics Letters A Vol 19. No. 22, 1633 (2004). Recent results in b-hadron Spectroscopy from CDF and D0, Joseph Boudreau on behalf of the CDF and D0 Experiments, to Appear in Nuclear Physics B (Proceedings Supplement)

Other CDF Publications are here.

ATLAS::

The GeoModel Toolkit for Detector Description, J. Boudreau and V. Tsulaia, in Computing in High Energy Physics and Nuclear Physics, CHEP 2004, Interlaken Switzerland, 27 Sep-01 Oct 2004

The Description of the ATLAS Detector, K.A. Assamagan et al., in Computing in High Energy Physics and Nuclear Physics, CHEP 2004, Interlaken Switzerland, 27 Sep-01 Oct 2004

The Simulation of the ATLAS Experiment: Present Status and Outlook, A. Rimoldi et al., in Computing in High Energy Physics and Nuclear Physics, CHEP 2004, Interlaken Switzerland, 27 Sep-01 Oct 2004

ATLAS Detector Simulation: Status and Outlook, M.V. Gallas et al., Nuclear Science Symposium Conference Record, 2005 IEEE 23-29 Oct. 2005

Fast Shower Simulation in the ATLAS Calorimeter, E. Barberio et al., in Computing in High Energy Physics and Nuclear Physics CHEP 2007, 2-7 September 2007, Victoria BC Canada

Here is a page to describe my recent work on the ATLAS experiment.

Oxford (2003 and 2004)

Starr Visiting Fellow with Lady Margaret Hall, University of Oxford.  I collaborate with both CDF colleagues and ATLAS colleagues from the Subdepartment of Nuclear and Particle Physics. Here is a public lecture (for a general audience) delivered during this fellowship.

08/27/08