Henry R. Weller

Henry R. Weller

Professor Emeritus of Physics

Office Location: 
Tunl, Durham, NC 27708
Front Office Address: 
Box 90308, Durham, NC 27708-0308
Phone: 
(919) 660-2633

Overview

Dr. Weller's research program at TUNL has been concentrated on using radiative capture reactions induced by polarized beams of protons and deuterons to study nuclear systems. These measurements have permitted him to observe the "D-state" in the 4He nucleus, which arises from the two body tensor force. This result changes the rate of the d+d fusion reaction by almost a factor of 50 at very low energies. This is of great interest in nuclear astrophysics. In the past year, he has focused on studies of (d,n) reactions using very low energy polarized beams. Such studies have not been previously performed. These reactions are of great interest in nuclear astrophysics. Dr. Weller is also working to help develop an intense beam of polarized gamma-rays using the facilities of the Duke Free Electron Laser Laboratory. (Dr. Weller is the Nuclear Physics Program Manager and is in charge of the development of the target room for the HIGS Project at DFELL). This beam will ultimately allow new experimental studies capable of testing fundamental aspects of Quantum Chromodynamics in the low-energy sector, such as the up-to-down quark mass ratio. The experiments at HIGS require very sophisticated targets and detector systems. Dr. Weller is leading the development of these. The first experiments using these setups and the upgraded HIGS facility are expected to begin in the spring of 2008.

Education & Training

  • Ph.D., Duke University 1967

FELDMAN, G., et al. “H-3(P,GAMMA)HE-4 REACTION AND THE (GAMMA,P) (GAMMA,N) RATIO IN HE-4.” Physical Review C, vol. 42, no. 4, Oct. 1990, pp. R1167–70. Wos-lite, doi:10.1103/PhysRevC.42.R1167. Full Text

Weller, H. R. “The d-state of 4He and the 2H(d,γ) 4He reaction from Ed = 800 keV-to-50 MeV.” Nuclear Physics, Section A, vol. 508, no. C, Jan. 1990, pp. 273–79. Scopus, doi:10.1016/0375-9474(90)90484-4. Full Text

Riley, J. C., et al. “Radiative capture of tensor and vector polarized deuterons by 3H at 400 keV.Physical Review. C, Nuclear Physics, vol. 40, no. 3, Sept. 1989, pp. 1517–19. Epmc, doi:10.1103/physrevc.40.1517. Full Text

Wagenaar, D. J., et al. “Evidence for M1 strength in the 3H(p.” Physical Review. C, Nuclear Physics, vol. 39, no. 2, Feb. 1989, pp. 352–58. Epmc, doi:10.1103/physrevc.39.352. Full Text

Weller, H. R., and D. R. Lehman. “Manifestations of the D-State in Light Nuclei.” Annual Review of Nuclear and Particle Science, vol. 38, no. 1, Annual Reviews, Dec. 1988, pp. 563–608. Crossref, doi:10.1146/annurev.ns.38.120188.003023. Full Text

Vetterli, M. C., et al. “Vector analyzing powers for 1H(d.” Physical Review. C, Nuclear Physics, vol. 38, no. 6, Dec. 1988, pp. 2503–08. Epmc, doi:10.1103/physrevc.38.2503. Full Text

Weller, H. R., et al. “The energy dependence of polarization observables in the 2H(d,γ)4He reaction.” Physics Letters B, vol. 213, no. 4, Nov. 1988, pp. 413–18. Scopus, doi:10.1016/0370-2693(88)91283-X. Full Text

Headly, D. M., et al. “Gamma decay of high spin states in 25Mg above 6.1 MeV.Physical Review. C, Nuclear Physics, vol. 38, no. 4, Oct. 1988, pp. 1698–721. Epmc, doi:10.1103/physrevc.38.1698. Full Text

Langenbrunner, J. L., et al. “2H(d.” Physical Review. C, Nuclear Physics, vol. 38, no. 1, July 1988, pp. 565–68. Epmc, doi:10.1103/physrevc.38.565. Full Text

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