タイトル | KEK-Report-2004-7 |
その他のタイトル | Crossing geometry and beam-beam tune-shift in a superbunch hadron collider スーパーバンチハドロン衝突器におけるクロッシング・ジオメトリ及びビーム・ビームチューンシフト |
著者(日) | 下崎 義人 |
著者(英) | Shimosaki, Yoshito |
著者所属(日) | 高エネルギー加速器研究機構 加速器研究施設 |
著者所属(英) | High Energy Accelerator Research Organization Accelerator Laboratory |
発行日 | 2004-09 |
発行機関など | National Laboratory for High Energy Physics |
刊行物名 | KEK-Report |
刊行年月日 | 2004-09 |
言語 | eng |
抄録 | An advanced analytic approach has been developed in order to estimate the beam-beam tune shift with an amplitude, even if particles have an unbalanced emittance, which means zero emittance in the horizontal direction and an extremely large emittance in the vertical, or its inverse. The developed approach has been qualitatively and quantitatively proved to be a useful tool to estimate the beam-beam tune shift. As an example, the relation between the beam-beam tune shift with the amplitude and the crossing geometry in a super-bunch hadron collider has been examined. The depressed tune shift and the pushed-up tune shift induced by the long-range interaction strongly depend on the emittance of particles, so that particles with zero emittance or unbalanced emittance illustrate the characteristic beam-beam tune shift on the tune diagram by combinating the crossing geometry. |
キーワード | hadron collider; beam-beam tune shift; crossing geometry; luminosity; space charge; nonlinearity; FFT analysis; ハドロン衝突器; ビーム・ビームチューンシフト; クロッシング・ジオメトリ; 輝度; 空間電荷; 非線形性; FFT解析 |
資料種別 | Technical Report |
SHI-NO | AA0047525000 |
レポートNO | KEK-Report-2004-7 |
URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/52065 |