@article {ISI:000265469800122,
	title = {Toward the first study of chemical reaction dynamics of Mu with vibrational-state-selected reactants in the gas phase: The Mu + H-2{*}(v=1) reaction by stimulated Raman pumping},
	journal = {PHYSICA B-CONDENSED MATTER},
	volume = {404},
	number = {5-7},
	year = {2009},
	note = {11th International Conference on Muon Spin Rotation, Relaxation and Resonance, Tsukuba, JAPAN, JUL 21-25, 2008},
	month = {APR 15},
	pages = {1013-1016},
	publisher = {Japan World Exposit, Commemorat Organizat},
	abstract = {Stimulated Raman pumping (SRP) is used to produce H-2 in its first vibrational state, in order to measure, for the first time, the Mu + H-2{*}(v = 1) -> MuH + H reaction rate at room temperature, as a prototypical example of new directions in gas-phase muonium chemistry, utilizing the pulsed muon beam and a new dedicated laser system at the RIKEN/RAL Laboratory. Reported here is a preliminary result but the final results are expected to provide definitive new tests of reaction rate theory on the highly accurate H-3 potential energy surface. The major difficulty in this experiment, compared to the standard SRP process, is to ensure a homogeneous excitation over a volume of several cm(3) and of sufficient intensity to ensure a measurable Mu relaxation rate. The techniques used to accomplish this are described. The experiment utilizes the 2nd harmonic output of a Nd:YAG laser (532 nm) with pulse energies up to 500 mJ at a repetition rate of 25 Hz. Different optical setups have been constructed and tested in order to optimize the number of laser-pumped H-2 molecules and their overlap with the stopping profile of the muon beam in the reaction cell (total volume similar to 100 x 40 x 4 mm(3)). The first result of this experiment gives a measured relaxation rate due to laser excitation of lambda{*} = 0.085 +/- 0.051 mu s(-1), consistent with theory but limited by both low statistics and particularly a high background relaxation rate. (c) 2009 Elsevier B.V. All rights reserved.},
	issn = {0921-4526},
	doi = {10.1016/j.physb.2008.11.230},
	author = {Bakule, Pavel and Sukhorukov, Oleksandr and Matsuda, Yasuyuki and Pratt, Francis and Gumplinger, Peter and Momose, Takamasa and Torikai, Eiko and Fleming, Donald}
}
