Polarization of the large COMPASS<sup>14</sup>NH<sub>3</sub>target

Koivuniemi, J.H.; Doshita, N.; Gautheron, F.; Heß, C.; Iwata, Tadahisa; Kisselev, Yu.; Kondo, K.; Meyer, W.; Michigami, T.; Reicherz, G.

doi:10.1088/1742-6596/150/1/012023

Cited by 2 publications

(2 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Polarized Target (PT) system [3,4] has an important role in COMPASS spin structure studies. It can provide large amount 2 of target material polarized to a high degree 3 .…”

Section: Polarized Targetmentioning

confidence: 99%

See 1 more Smart Citation

COMPASS polarized target for Drell-Yan

Pešek¹,

Matoušek²

2014

Proceedings of XVth International Workshop on Polarized Sources, Targets, and Polarimetry — PoS(PSTP2013)

View full text Add to dashboard Cite

In the COMPASS Drell-Yan experiment the pion beam with momentum of 190 GeV/c and intensity up to 10 8 pions/s will interact with transversely polarized proton target producing muon pair via Drell-Yan process. The solid-state NH 3 will be polarized by dynamic nuclear polarization. Maximum polarization reached during data taking is expected to be up to 90%. The non-interacting beam and other particles produced inside the target will be stopped in the hadron absorber after the target. Two target cells, sepparated by a 20 cm gap in between, each 55 cm long and 4 cm in diameter give the target material volume about 691 cm 3. The target platform needs to be moved by 2.3 m in upstream direction from the position used in previous experiments in order to accomodate the absorber. During the beam time higher radiation is expected in the area of the control room. Thus a new target remote control system is needed. The target magnet is undergoing a substantial upgrade. Drell-Yan data taking is expected to start in 2014-2015 for period of approximately 180 days. Current status of the target, the required modifications and future plans are presented.

show abstract

“…The Polarized Target (PT) system [3,4] has an important role in COMPASS spin structure studies. It can provide large amount 2 of target material polarized to a high degree 3 .…”

Section: Polarized Targetmentioning

confidence: 99%

“…The high intensity pion beam together with the hadron absorber will cause higher radiation dose 4 in the experimental building. Because of that the control room will be moved to another building.…”

Section: Drell-yan Program At Compassmentioning

confidence: 99%