| Autor: |
Joseph Brennan, M. Blaskiewicz, Christoph Montag, Steven Tepikian, F. Pilat, P. Cameron, Roger Connolly, Vadim Ptitsyn, Wolfram Fischer, Dejan Trbojevic, Steve Peggs |
| Rok vydání: |
2004 |
| Předmět: |
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| Zdroj: |
Proceedings of the 2003 Bipolar/BiCMOS Circuits and Technology Meeting (IEEE Cat. No.03CH37440). |
| Popis: |
RHIC is currently the only hadron collider in which strong-strong beam-beam effects can be seen. For the first time, coherent beam-beam modes were observed in a bunched beam hadron collider. Other beam-beam effects in RHIC were observed in operation and in dedicated experiments with gold ions, deuterons and protons. Observations include measurements of beam-beam induced tune shifts, lifetime and emittance growth measurements with and without beam-beam interaction, and background rates as a function of tunes. During ramps unequal radio frequencies in the two rings cause the crossing points to move longitudinally. Thus bunches experience beam-beam interactions only in intervals and the tunes are modulated. In this article we summarize the most important beam-beam observations made so far. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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