Low-energy photodisintegration of the deuteron and Big-Bang nucleosynthesis

W. Tornow, N. G. Czakon, C. R. Howell, A. Hutcheson, J. H. Kelley, V. N. Litvinenko, S. F. Mikhailov, I. V. Pinayev, G. J. Weisel, H. Witała

Research output: Contribution to journalArticlepeer-review

42 Scopus citations

Abstract

The photon analyzing power for the photodisintegration of the deuteron was measured for seven gamma-ray energies between 2.39 and 4.05 MeV using the linearly polarized gamma-ray beam of the high-intensity gamma-ray source at the Duke Free-Electron Laser Laboratory. The data provide a stringent test of theoretical calculations for the inverse reaction, the neutron-proton radiative capture reaction at energies important for Big-Bang nucleosynthesis. Our data are in excellent agreement with potential model and effective field theory calculations. Therefore, the uncertainty in the baryon density Ω Bh2 obtained from Big-Bang Nucleosynthesis can be reduced at least by 20%.

Original languageEnglish (US)
Pages (from-to)8-13
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume574
Issue number1-2
DOIs
StatePublished - Nov 6 2003

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Fingerprint

Dive into the research topics of 'Low-energy photodisintegration of the deuteron and Big-Bang nucleosynthesis'. Together they form a unique fingerprint.

Cite this