Deceleration and Trapping of SrF Molecules.

Autor: Aggarwal P; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25, 9747 AA Groningen, The Netherlands.; Nikhef, National Institute for Subatomic Physics, Science Park 105, 1098 XG Amsterdam, The Netherlands., Yin Y; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25, 9747 AA Groningen, The Netherlands.; Nikhef, National Institute for Subatomic Physics, Science Park 105, 1098 XG Amsterdam, The Netherlands., Esajas K; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25, 9747 AA Groningen, The Netherlands.; Nikhef, National Institute for Subatomic Physics, Science Park 105, 1098 XG Amsterdam, The Netherlands., Bethlem HL; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25, 9747 AA Groningen, The Netherlands.; Department of Physics and Astronomy, and LaserLaB, Vrije Universiteit, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands., Boeschoten A; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25, 9747 AA Groningen, The Netherlands.; Nikhef, National Institute for Subatomic Physics, Science Park 105, 1098 XG Amsterdam, The Netherlands., Borschevsky A; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25, 9747 AA Groningen, The Netherlands.; Nikhef, National Institute for Subatomic Physics, Science Park 105, 1098 XG Amsterdam, The Netherlands., Hoekstra S; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25, 9747 AA Groningen, The Netherlands.; Nikhef, National Institute for Subatomic Physics, Science Park 105, 1098 XG Amsterdam, The Netherlands., Jungmann K; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25, 9747 AA Groningen, The Netherlands.; Nikhef, National Institute for Subatomic Physics, Science Park 105, 1098 XG Amsterdam, The Netherlands., Marshall VR; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25, 9747 AA Groningen, The Netherlands.; Nikhef, National Institute for Subatomic Physics, Science Park 105, 1098 XG Amsterdam, The Netherlands., Meijknecht TB; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25, 9747 AA Groningen, The Netherlands.; Nikhef, National Institute for Subatomic Physics, Science Park 105, 1098 XG Amsterdam, The Netherlands., Mooij MC; Nikhef, National Institute for Subatomic Physics, Science Park 105, 1098 XG Amsterdam, The Netherlands.; Department of Physics and Astronomy, and LaserLaB, Vrije Universiteit, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands., Timmermans RGE; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25, 9747 AA Groningen, The Netherlands.; Nikhef, National Institute for Subatomic Physics, Science Park 105, 1098 XG Amsterdam, The Netherlands., Touwen A; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25, 9747 AA Groningen, The Netherlands.; Nikhef, National Institute for Subatomic Physics, Science Park 105, 1098 XG Amsterdam, The Netherlands., Ubachs W; Department of Physics and Astronomy, and LaserLaB, Vrije Universiteit, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands., Willmann L; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25, 9747 AA Groningen, The Netherlands.; Nikhef, National Institute for Subatomic Physics, Science Park 105, 1098 XG Amsterdam, The Netherlands.
Jazyk: angličtina
Zdroj: Physical review letters [Phys Rev Lett] 2021 Oct 22; Vol. 127 (17), pp. 173201.
DOI: 10.1103/PhysRevLett.127.173201
Abstrakt: We report on the electrostatic trapping of neutral SrF molecules. The molecules are captured from a cryogenic buffer-gas beam source into the moving traps of a 4.5-m-long traveling-wave Stark decelerator. The SrF molecules in X^{2}Σ^{+}(v=0,N=1) state are brought to rest as the velocity of the moving traps is gradually reduced from 190  m/s to zero. The molecules are held for up to 50 ms in multiple electric traps of the decelerator. The trapped packets have a volume (FWHM) of 1  mm^{3} and a velocity spread of 5(1)  m/s, which corresponds to a temperature of 60(20) mK. Our result demonstrates a factor 3 increase in the molecular mass that has been Stark decelerated and trapped. Heavy molecules (mass>100  amu) offer a highly increased sensitivity to probe physics beyond the standard model. This work significantly extends the species of neutral molecules of which slow beams can be created for collision studies, precision measurement, and trapping experiments.
Databáze: MEDLINE