Bremsstrahlung in {alpha} Decay Reexamined

Journal Article · Fri Jul 13 00:00:00 EDT 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.99.022505· OSTI ID:20957877

Boie, H; Scheit, H; Jentschura, U D; Koeck, F; Lauer, M; Schwalm, D ^[1]; Milstein, A I; Terekhov, I S ^[2]

---

1. Max-Planck-Institut fuer Kernphysik, D-69117 Heidelberg (Germany)
2. Budker Institute of Nuclear Physics, 630090 Novosibirsk (Russian Federation)

A high-statistics measurement of bremsstrahlung emitted in the {alpha} decay of {sup 210}Po has been performed, which allows us to follow the photon spectra up to energies of {approx}500 keV. The measured differential emission probability is in good agreement with our theoretical results obtained within the quasiclassical approximation as well as with the exact quantum mechanical calculation. It is shown that, due to the small effective electric dipole charge of the radiating system, a significant interference between the electric dipole and quadrupole contributions occurs, which is altering substantially the angular correlation between the {alpha} particle and the emitted photon.

• OSTI ID: 20957877
• Journal Information: Physical Review Letters, Vol. 99, Issue 2; Other Information: DOI: 10.1103/PhysRevLett.99.022505; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALPHA DECAY
ALPHA PARTICLES
ANGULAR CORRELATION
APPROXIMATIONS
BREMSSTRAHLUNG
ELECTRIC DIPOLES
INTERFERENCE
KEV RANGE 100-1000
PHOTON EMISSION
PHOTONS
POLONIUM 210
PROBABILITY
QUADRUPOLES
QUANTUM MECHANICS
SPECTRA
STATISTICS