Hauptseite > Publikationsdatenbank > Tests of amorphous carbon-coated storage cells for a polarized gas target at LHCb and further results > print

001     1046969
005     20251027132712.0
024 7 _ |a 10.1088/1674-1137/add70e
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024 7 _ |a 0254-3052
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082 _ _ |a 530
100 1 _ |a El-Kordy, Tarek
|0 P:(DE-Juel1)204381
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111 2 _ |a The 11th International Conference on Nuclear Physics at Strorage Rings
|g STORI´24
|c Huizhou
|d 2024-11-18 - 2024-11-22
|w Peoples R China
245 _ _ |a Tests of amorphous carbon-coated storage cells for a polarized gas target at LHCb and further results
260 _ _ |a Bristol [u.a.]
|c 2025
|b IOP Publ.
300 _ _ |a 7
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520 _ _ |a As the LHC beams cannot be polarized, introducing a dense polarized gas target at the LHCb experiment at CERN, to be operated concurrently with beam-beam collisions, will facilitate fixed-target interactions to explore a new energy regime of spin physics measurements. Unfortunately, typical surface coatings used to avoid polarization losses, such as water, Teflon, or aluminum, are prohibited due to restrictions imposed by vacuum and beam policies. The former atomic beam source for the polarized target at ANKE@COSY (Forschungszentrum Jülich), an accompanying Lamb-shift polarimeter, and a storage cell chamber inside a superconducting magnet provide a perfect test stand to investigate the properties of a storage cell coated with amorphous carbon. A significant recombination rate, ranging from 93% to 100%, and preservation of polarization during recombination surpassing 74% were observed. We successfully produced H$_2$ molecules with a nuclear polarization of P~0.59. In addition, we could produce polarized H$_3^+$ ions for the first time and observed the shift of the axis of rotation within HD molecules.
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536 _ _ |a DFG project G:(GEPRIS)533904660 - Eine vielseitige Polarisationsmethode für Teilchen mit einfachen Hyperfeinstrukturen (533904660)
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650 1 7 |a Nuclei and Particles
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700 1 _ |a Engels, Ralf W.
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700 1 _ |a Faatz, N.
|0 P:(DE-Juel1)192187
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700 1 _ |a Costa Pinto, P.
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700 1 _ |a Di Nezza, P.
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700 1 _ |a Ferro-Luzzi, M.
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700 1 _ |a Grigoryev, K.
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700 1 _ |a Langer, Chr.
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700 1 _ |a Kannis, C.
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700 1 _ |a Pütz, Simon Jakob
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773 _ _ |a 10.1088/1674-1137/add70e
|g Vol. 49, no. 8, p. 084002 -
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|t Chinese physics / C
|v 49
|y 2025
|x 1674-1137
856 4 _ |u https://juser.fz-juelich.de/record/1046969/files/El-Kordy_2025_Chinese_Phys._C_49_084002.pdf
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