Note on polarized RHIC bunch arrangement
We discuss what combinations of bunch polarization in the two RHIC rings are necessary to do the physics measurements at various interaction regions. We also consider the bunches for both the pion inclusive and p-p elastic polarization measurements. Important factors to consider are the direction of the polarization with respect to the momentum in each bunch, the beam gas backgrounds, and the simulation of zero - polarization in one beam by averaging + and - helicity, and luminosity monitoring for normalization. These considerations can be addressed by setting the relative number of each of the 9 combinations possible at each of the 6 interaction regions. The combinations are (+ empty -) yellow X (+ empty -)blue, where yellow and blue are the counter-rotating rings.
- Research Organization:
- Argonne National Lab., IL (United States). High Energy Physics Div.
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 406054
- Report Number(s):
- ANL-HEP-TR-96-73; ON: DE97001023; IN: AGS/RHIC/SN-035; TRN: 97:001196
- Resource Relation:
- Other Information: PBD: 30 Aug 1996
- Country of Publication:
- United States
- Language:
- English
Similar Records
Required Accuracy of the RHIC Circumference
RHIC Polarized Proton Performance in Run-8