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Brian C. Odom





KICP Fellow

Brian C. Odom

 
Current Research: Bubble Chambers for Direct Detection of Dark Matter (COUPP collaboration)
 
Thesis Research: Harvard University Electron g-Factor Measurement
 
Curriculum Vitae
 
Publications
 
Secondary Reports on Thesis Research

Brian C. Odom, KICP Fellow
Phone: (773) 702-7851
Fax: (773) 834-8279
Location: LASR 224
E-mail: odomkicp.uchicago.edu
Curriculum Vitae: CV (pdf format)

Current Research: Bubble Chambers for Direct Detection of Dark Matter (COUPP collaboration)

Heavy-liquid bubble chambers can be made sufficiently stable to be used in searches for Weakly Interacting Massive Particles (WIMPs). Advantages of this approach are optimal choice of target liquid - CF3I, maximally sensitive to both spin-dependent (SD) and spin-independent (SI) WIMP interactions, low cost, good scalability, room temperature operation, extraordinary intrinsic rejection of minimally-ionizing backgrounds, and a number of features permitting rejection of irreducible neutron backgrounds. The COUPP (Chicagoland Observatory for Underground Particle Physics) collaboration has successfully completed an engineering run with a 2 kg prototype chamber installed 300 meters water equivalent underground in Fermilab's NuMi gallery. Even with the small prototype mass, improved limits on spin-dependent WIMP-proton coupling are set. Next-generation chambers, totaling a target mass of 80 kg, are currently under construction.

Thesis Research: Harvard University Electron g-Factor Measurement

In my Ph.D. thesis, supervised by Jerry Gabrielse at Harvard University, I reported the first fully quantum measurement of the electron magnetic moment. This 0.8 parts per trillion result for the g-factor, a dimensionless representation of the magnetic moment, is slightly shifted from the best previous measurement and is six times more accurate. Quantum Electrodynamics (QED) predicts a small deviation of g from the Dirac value of 2. Combining a measurement of the electron g-2 with existing QED theory yields a new value for the fine structure constant, also the most accurate to date. Our measurement uses quantum spectroscopy of transitions between the ground and first-excited cyclotron and spin states of a single electron, cooled by a dilution refrigerator. The measurement is performed in a cylindrical trap cavity with well characterized electromagnetic standing-wave modes, making possible the first cavity-shift correction to the measured magnetic moment. Comparison of this result against other measurements of the fine structure constant provides the most stringent test of Quantum Electrodynamics and is a sensitive probe for electron internal structure. My thesis work was awarded the 2006 DAMOP Thesis Award, and the g-factor measurement was the AIP Physics News Update story of the year for 2006.

Curriculum Vitae

CV (pdf format)

Education and Training

2004 - presentKavli Institute Fellow, University of Chicago, Center for Cosmological Physics
2004Ph.D. Physics, Harvard University
1998A.M. Physics, Harvard University
1995B.S. Physics with Honors, Stanford University

Awards and Honors

2006Arthur H. Compton Lecturer, Enrico Fermi Institute, University of Chicago, IL
2006Division of Atomic, Molecular Optical Physics (DAMOP) Thesis Award, American Physical Society
2004Kavli Institute Fellowship, University of Chicago

Invited Presentations

2008University of California, Santa Barbara. HEP Seminar. Santa Barbara, CA.
2008University of California, Berkeley. AMO Seminar. Berkeley, CA.
2008Massachusetts Institute of Technology. Nuclear and Particle Colloquium. Boston, MA.
2008University of Michigan. CM/AMO Seminar. Ann Arbor, MI.
2008New York University. Physics Colloquium. New York, NY.
2008New York Univeristy. CCPP Seminar. New York, NY.
2008University of Chicago. James Franck Institute Seminar. Chicago, IL.
2007Stanford Linear Accelerator Center. Experimental Seminar. Menlo Park, CA
2006Argonne National Laboratory. Medium Energy Physics Seminar. Argonne, IL
2006Yale University. Weak Interactions Seminar. New Haven, CT
2006University of Maryland. Combined Nuclear/HEP Seminar. College Park, MD
2006Northwestern University. Physics Colloquium. Evanston, IL
2006Division of Nuclear Physics, Dark Matter Mini-Symposium, Nashville, TN
2006Arthur H. Compton Lecturer, Enrico Fermi Institute, University of Chicago, IL
20066th International Workshop on The Identification of Dark Matter. Rhodes, Greece
2006APS Division of Atomic Molecular Physics, Thesis Prize presentation. Knoxville, TN
2005SNOLAB 2005 Workshop. Lively, Canada.
2005Northwestern University. HEP seminar. Evanston, IL.
2004University of Chicago. Kavli Institute seminar. Chicago, IL.
2004Argonne National Laboratory. AMO seminar. Argonne, IL.
2004Third Meeting on CPT and Lorentz Symmetry. Bloomington, IN.
2003University of Chicago. HEP seminar. Chicago, IL.
2002Fermi National Accelerator Laboratory. Special seminar. Batavia, IL.
1999Smithsonian Institute for Astrophysics. AMO seminar. Cambridge, MA.

Contributed Presentations

2007IEEE Nuclear Science Symposium. Honolulu, HI
2007Topics in Underground and Particle Physics (TAUP). Sendai, Japan
2006Neutrino 2006. Santa Fe, NM
2005IEEE 2005 Nuclear Science Symposium. Fajardo, Puerto Rico.
2005Topics in Underground and Particle Physics (TAUP) 2005. Zaragoza, Spain.

Teaching Experience

2002Reality Physics, Harvard University, Prof. Jerry Gabrielse
1996-1997Undergraduate Electricity and Magnetism Lab, Harvard University, Prof. John Doyle
1995-1996Undergraduate Quantum Mechanics, Stanford University, Prof. Michael Peskin

Publications

1.Spin-Dependent WIMP Limits from a Bubble Chamber, E. Behnke, J.I. Collar, P.S. Cooper, K. Crum, M. Crisler, M. Hu, I. Levine, D. Nakazawa, H. Nguyen, B. Odom, E. Ramberg, J. Rasmussen, N. Riley, A. Sonnenschein, M. Szydagis, and R. Tschirhart, Science 319, 933 (2008).
2.WIMP identification through a combined measurement of axial and scalar couplings, G. Bertone, D.G. Cerdeno, J.I. Collar, and B. Odom, Phys. Rev. Lett. 99, 151301 (2007).
3.Dark Matter Detection with Bubble Chambers, E. Behnke, J.I. Collar, P.S. Cooper, K. Crum, M. Hu, I. Levine, S. Mishra, D. Nakazawa, B. Odom, E. Ramberg, J. Rasmussen, N. Riley, A. Sonnenschein, M. Szydagis, R. Tschirhart, and N. Vander Werf, J. Phys.: Conf. Series, in press.
4.Development of Bubble Chambers With Enhanced Stability and Sensitivity to Low-Energy Nuclear Recoils, W.J. Bolte, J.I. Collar, M. Crisler, J. Hall, D. Holmgren, D. Nakazawa, B. Odom, K. O'Sullivan, R. Plunkett, E. Ramberg, A. Raskin, A. Sonnenschein, J.D. Vieira, Nucl. Instrum. Meth. A 577, 569 (2007).
5.New Measurement of the Electron Magnetic Moment Using a One-Electron Quantum Cyclotron, B. Odom, D. Hanneke, B. D'Urso, and G. Gabrielse, Phys. Rev. Lett. 97, 030801 (2006).
6.New Determination of the Fine Structure Constant from the Electron g Value and QED, G. Gabrielse, D. Hanneke, T. Kinoshita, M. Nio, and B. Odom, Phys. Rev. Lett. 97, 030802 (2006).
7.A Bubble Chamber for Dark Matter Detection (the COUPP Project Status), W.J. Bolte, J.I. Collar, M. Crisler, J. Hall, J. Krider, K. Crum, D. Holmgren, C.M. Lei, D. Nakazawa, H. Nguyen, B. Odom, K. O'Sullivan, R. Plunkett, E. Ramberg, A. Raskin, J. Rasmussen, R. Schmit, A. Sonnenschein, M. Szydagis, and J.D. Vieira, Journal of Physics: Conference Series 39 (2006).
8.Single-Particle Self-excited Oscillator, B. D'Urso, R. Van Handel, B. Odom, and G. Gabrielse, Phys. Rev. Lett. 94, 113002 (2005).
9.Fully Quantum Measurement of the Electron Magnetic Moment, B. Odom. Thesis supervised by Gerald Gabrielse, Harvard University (2004).
10.COUPP: A Heavy-Liquid Bubble Chamber for WIMP Detection, J. Bolte, J.I. Collar, M. Crisler, D. Holmgren, D. Nakazawa, B. Odom, K. O'Sullivan, R. Plunkett, E. Ramberg, A. Raskin, A. Sonnenschein, J.D. Vieira, Proceedings from IDM2004, Edinburgh, Scotland (2004).
11.Feedback Cooling of a One-Electron Oscillator, B. D'Urso, B. Odom, and G. Gabrielse, Phys. Rev. Lett. 90, 043001 (2003).
12.One-Electron Cyclotron (and Implications for Cold Antihydrogen), G. Gabrielse, S. Peil, B. Odom, and B. D'Urso, In Atomic Physics 17, Vol. 551, edited by E. Arimondo, P. DeNatale, and M. Inguscio. American Institute of Physics, Melville, New York, pp. 108-120 (2001).
13.QND Observation of Quantum Jumps between Fock States: a One-Electron Cyclotron Oscillator at 70 mK to 4.2 K, G. Gabrielse, S. Peil, B. Odom, and B. D'Urso, Proceedings from Quantum Electronics and Laser Science Conference, Baltimore, MD, USA (1999).
14.Spectroscopy of Buffer-Gas Cooled Vanadium Monoxide in a Magnetic Trapping Field, J.D. Weinstein, R. deCarvalho, K. Amar, A. Boca, B.C. Odom, B. Friedrich, J.M. Doyle. J. Chem. Phys. 109, 2656 (1998).
15.Quantum Interference in Electron Collision, R. Liu, B. Odom, Y. Yamamoto, and S. Tarucha, Nature 391, 6664 (1998).

Secondary Reports on Thesis Research

1.The Physics Story of the Year for 2006, P. Schewe and B. Stein, Physics News Update 804. Dec. 5, 2006.
2.Finer Fine-Structure Constant, Riken Research Highlights, Nov. 2, 2006.
3.In constant search of 'alpha', M. Inman, New Scientist 2568, Sept. 12, 2006.
4.For Quantum Theory, A Jump, J. Zhang, Harvard Crimson, Sept. 11, 2006.
5.Gyromagnetic ratio of a lone trapped electron is measured better than a part per trillion, B. Schwarzschild, Physics Today, Search and Discovery, Aug. 2006.
6.A finer constant, A. Czarnecki, Nature 442, Aug. 3, 2006.
7.Refining the fine-structure constant, PhysicsWeb Summaries, Aug. 1, 2006.
8.A More Precise Fine Structure Constant, D. Kleppner, Science 313, July 28, 2006.
9.Plumbing the Electron's Depths, P. Schewe and B. Stein, Physics News Update 783, July 5, 2006.


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Last update: March 2, 2008