Results 71 to 80 of about 172 (118)
Techniques for cooling and trapping of atoms applied to strontium atoms
, 2013 Este trabalho descreve os métodos usados para obtenção de uma amostra ultra-fria de átomos de estrôncio. Os métodos usados para preparar a amostra são: um desacelerador Zeeman e duas armadilhas magneto-ópticas (MOT).
Maria Luiza Miguez, Miguez, Maria Luiza
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Combining laser cooling and Zeeman deceleration for precision spectroscopy in supersonic beams
Physical Review APrecision spectroscopic measurements in atoms and molecules play an increasingly important role in chemistry and physics, e.g., to characterize structure and dynamics at long timescales, to determine physical constants, or to search for physics beyond the standard model of particle physics.
Gloria Clausen +6 more
openaire +3 more sources
, 2010 A lithographically-etched chip containing 1254 microscopic electrodes at a center-to-center spacing of 40 micron is used to produce an array of electric field strength minima 25 micron above the surface with a spacing between neighboring minima of 120 ...
Meek, Samuel A., Meek, S.
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FINE STRUCTURE OF METASTABLE 4He2 USING ZEEMAN-DECELERATED MOLECULAR-BEAM RESONANCE SPECTROSCOPY
The $a\,^3\Sigma_u^+$ state of $^{4}$He$_{2}$ is a metastable state with a lifetime of about $18$\,s. The spin-spin and spin-rotation interactions result in a splitting of each rotational level $N$ into three components $J=N, N\pm1$.
Semeria, Luca
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Manipulating hydrogen atoms using permanent magnets: Characterisation of a velocity-filtering guide
, 2019 A Halbach array composed of 12 permanent magnets in a hexapole configuration is employed to deflect hydrogen atoms as they exit a Zeeman decelerator.
Toscano, Jutta +10 more
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Towards sympathetic cooling of large molecules: Cold collisions between benzene and rare gas atoms
, 2009 This paper reports on calculations of collisional cross sections for the complexes Z-CDH6 (X = 3He, 4He, Ne) at temperatures in the range 1)μK - 10K and shows that relatively large cross sections in the 103-105Å2 range are available for collisional ...
P Barletta +5 more
core
, 2011 The development of various techniques to control both the internal and external degrees of freedom of molecules and to produce (ultra-) cold, trapped molecular ensembles open various avenues to physics and chemistry in the low temperature regime.
Bera, Manabendra Nath
core
Recent progress of laser spectroscopy experiments on antiprotonic helium. [PDF]
Philos Trans A Math Phys Eng Sci, 2018 Hori M.
europepmc +1 more source
A novel molecular synchrotron for cold collision and EDM experiments. [PDF]
Sci Rep, 2016 Hou S, Wei B, Deng L, Yin J.
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Optimal beam sources for Stark decelerators in collision experiments: a tutorial review. [PDF]
EPJ Tech Instrum, 2015 Vogels SN, Gao Z, van de Meerakker SY.
europepmc +1 more source