B. Lee Roberts

    Professor of Physics

    Boston University

        Phone: 617-353-2187     

        Fax: 617-353-9393

        roberts@bu.edu.

B. Lee Roberts - Research Interests:

1. The search for a permanent electric dipole moment of the neutron at the Spallation Neutron Source in Oak Ridge.

2. Muon (g-2):  I was co-spokesman with Vernon Hughes for E821 at the Brookhaven AGS. Spires lists over 1400 citations to our physics papers from E821.

3. MuLan:  The muon lifetime experiment at the Paul Scherrer Insitut.  We have recently reported an 11 ppm measurment of the muon lifetime, a midpoint in our effort to measure the muon lifetime to 1 ppm, and the weak coupling (Fermi) constant G_m to ~0.5 ppm.

Past Research:

1. The CPLEAR Experiment at CERN.  We used proton-antiproton annihilation to produce the strong eigenstates of the K⁰ meson at t = 0, and studied the CP-violating decays as a function of proper time (the technique later used at the B-factories with B-mesons).  We made the first direct observation of time-reversal violation by measuring the rates for the K-zero to K-zero-bar transition, and for K-zero-bar to K-zero. 

2. Radiative kaon capture and Hyperon Decays - E811 at Brookhaven.  The radiative capture of a kaon at rest on a proton was measured to gain information on the structure of the  L(1405) resonance, which is below threshold in the K^-p system. Also the weak radiative decays,  L→ n g, and S⁺ →p g were studied.

My curriculum vitae in pdf format

Links:

Click here to go to my department web site.                      Click here to go to the B.U. Physics Department web site.
Click here to go to my internal g-2 page.                            Click here to go to my g-2 at J-PARC page.
Click here to go to my muon EDM page.

Invited talk (27MB .ppt) given at the Trueman-Fest in honor of T.L. Trueman's retirement from Brookhaven Laboratory, (12-May-2008)

Invited talk given at the Paul Scherrer Institut (19-Jan-2007) at the Workshop on Precision Measurements at Low Energy, (20MB)

Invited talk given at the Yukawa-Tomonaga Centennial Symposium - Progress in Modern Physics - (11-Dec-2006) (20MB) BL-Roberts-yukawa-tomonaga-web.ppt

Vanya Logashenko's presentation at the International Workshop   e+e- collisions from φ to ψ '06 in Novosibirsk (19 MB) (Feb. 2006)  Vanya-BINP2006.ppt  

My presentation at the same workshop (8Mb)

E969 Response from BNL Associate Lab Director T. Kirk  TK_HertzogMorseRoberts_9-18-04.pdf

Other Presentations: