| Title | MUONIUM ATOM SPIN-EXCHANGE WITH ALKALI-METAL VAPORS - MU+CS |
| Publication Type | Journal Article |
| Year of Publication | 1993 |
| Authors | Pan, JJ, Senba, M, Arseneau, DJ, Kempton, JR, Fleming, DG, Baer, S, Gonzalez, AC, Snooks, R |
| Journal | Physical Review A |
| Volume | 48 |
| Pagination | 1218-1226 |
| Date Published | Aug |
| Type of Article | Article |
| ISBN Number | 1050-2947 |
| Keywords | ADDITION-REACTIONS, COLLISIONS, CROSS-SECTIONS, ENERGIES, HYDROGEN-ATOMS, LOW-PRESSURE GASES, MU-SR, RATE CONSTANTS, relaxation, SCATTERING |
| Abstract | The thermally averaged total electron spin-flip cross sections (sigma(SF)) for Mu-Cs have been measured in a 2 atm N2 moderator at 543, 566, and 643 K using the muon-spin-rotation technique. Within an overall experimental error of +/-15%, the measured cross sections can be taken as temperature independent, sigma(SF)=39.7+/-6.0 X 10(-16) cm2, though there may be a trend to decreased values at the lower temperatures. This average value is considerably lower than either the early calculated results of Dalgarno and Rudge [Proc. R. Soc. London Ser. A 286, 519 (1965)] or the more recent ones of Cole and Olson [Phys. Rev. A 31, 2137 (1985)] for the corresponding H-Cs collisions, indicating a dramatic isotope effect. |
| URL | <Go to ISI>://A1993LQ99000046 |
