Muonium chemistry in liquids: evidence for transient radicals

Journal Article · Tue Jan 01 04:00:00 EST 1974 · Phys. Rev., A, v. 9, no. 1, pp. 495-507

DOI:https://doi.org/10.1103/PhysRevA.9.495· OSTI ID:4328624

Brewer, J H; Crowe, K M; Gygax, F N; Johnson, R F; Fleming, D G; Schenck, A

Polarized positive muons are stopped in solutions in magnetic fields transverse to their polarization. Positrons from the asymmetric decay are detected as the muons precess, allowing measurement of the magnitude and direction (phase) of the apparent initial polarization P/sub res/. Variation s of P/sub res/ with reagent concentration are compared with theoretical predictions. Measurement of both magnitude and phase of P/sub res/ allows sensitive tests of the mechanism of fast'' mu /sup +/ depolarization. Evidence is found for both epithermal hot-atom'' reactions and chemical reactions of muonium involving formation of rapidly reacting radicals. Chemical rate constants are extracted and compared with rates for analogous reactions of atomic hydrogen. (auth)

• Research Organization: Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
• Sponsoring Organization: USDOE
• NSA Number: NSA-29-025158
• OSTI ID: 4328624
• Journal Information: Phys. Rev., A, v. 9, no. 1, pp. 495-507, Journal Name: Phys. Rev., A, v. 9, no. 1, pp. 495-507; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

*BENZENE-- CHEMICAL REACTIONS
*BROMINE-- CHEMICAL REACTIONS
*HYDROCHLORIC ACID-- CHEMICAL REACTIONS
*HYDROGEN PEROXIDE-- CHEMICAL REACTIONS
*IODINE-- CHEMICAL REACTIONS
*IRON CHLORIDES-- CHEMICAL REACTIONS
*IRON COMPOUNDS-- CHEMICAL REACTIONS
*IRON NITRATES-- CHEMICAL REACTIONS
*METHANOL-- CHEMICAL REACTIONS
*MUONIC ATOMS-- HOT ATOM CHEMISTRY
*MUONIUM-- CHEMICAL REACTIONS
*MUONS PLUS-- DEPOLARIZATION
*NITRIC ACID-- CHEMICAL REACTIONS
*PERCHLORATES-- CHEMICAL REACTIONS
CHEMICAL REACTION KINETICS
N40410 --Chemistry--Radiochemistry & Nuclear Chemistry--Hot Atom Chemistry
N60300* --Physics (Atomic & Molecular)--Positronium
Muonium
& Mesic Atoms & Molecules
POLARIZED BEAMS
RADICALS
SPIN ORIENTATION