SLC束流破坏的实验证据

Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366) Pub Date : 1999-05-21 DOI:10.1109/PAC.1999.795691

T. Barklow, G. Bower, F. Decker, C. Field, L. Hendrickson, T. Markiewicz, D. McCormick, M. Minty, N. Phinney, P. Raimondi, M. Ross, K. Thompson, T. Usher, M. Woodley, F. Zimmermann

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引用次数: 4

摘要

在1997- 1998年SLAC直线对撞机(SLC)运行期间，首次观测到光束破坏引起的显著光度增强。干扰或夹紧效应是由于在碰撞过程中，由于每束光束被另一束光束的场聚焦而导致有效光束尺寸的减小。当光束强度为4.0 10/sup 10/ /束，束长为1.1 mm，水平和垂直光束尺寸为/spl sigma//sub x/=1.5 /spl mu/m和/spl sigma//sub y/=0.65 /spl mu/m时，破坏光度增加超过100%。SLD探测器记录的测量数据速率与理论计算的中断增强一致。

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Experimental evidence for beam-beam disruption at the SLC

A significant luminosity enhancement from beam-beam disruption was observed for the first time during the 1997-98 run of the SLAC Linear Collider (SLC). Disruption, or pinch effect, is due to the decrease in effective beam size during collisions as each beam is focused by the field of the other beam. With beam intensities of 4.0 10/sup 10/ per bunch, bunch lengths of 1.1 mm, and horizontal and vertical beam sizes of /spl sigma//sub x/=1.5 /spl mu/m and /spl sigma//sub y/=0.65 /spl mu/m, the luminosity increase from disruption was more than 100%. Measured data rates as recorded by the SLD detector were in agreement with the theoretically calculated disruption enhancement.

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Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366)

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