DIPAC2011 - List of Keywords (beam-beam-effects)

Paper	Title	Other Keywords	Page
MOPD73	Study of Beam Size Blowup due to Transverse Bunch Feedback Noise on e⁺e⁻ Collider	luminosity, feedback, simulation, injection	212
	M. Tobiyama, K. Ohmi KEK, Ibaraki, Japan
	Vertical beam size blowup with the gain of the transverse bunch feedback systems has been observed in KEKB B-factory rings. With the numerical simulation, large beam-beam effect enhances small oscillation induced by the broadband noise of the bunch feedback kick. To examine the simulation, beam response, effective beam size and the luminosity change with artificial external noise injected in the transverse feedback system have beem measuredn in KEKB LER ring during collision. The result has been compaired with the simulation including beam-beam effect and showed good agreement.
	Poster MOPD73 [0.296 MB]

Paper

Title

Other Keywords

Page

MOPD73

Study of Beam Size Blowup due to Transverse Bunch Feedback Noise on e⁺e⁻ Collider

luminosity, feedback, simulation, injection

212

M. Tobiyama, K. Ohmi
KEK, Ibaraki, Japan

Vertical beam size blowup with the gain of the transverse bunch feedback systems has been observed in KEKB B-factory rings. With the numerical simulation, large beam-beam effect enhances small oscillation induced by the broadband noise of the bunch feedback kick. To examine the simulation, beam response, effective beam size and the luminosity change with artificial external noise injected in the transverse feedback system have beem measuredn in KEKB LER ring during collision. The result has been compaired with the simulation including beam-beam effect and showed good agreement.

Poster MOPD73 [0.296 MB]