| DATE: |
2006-03-03 13:30 - 15:00 |
| PLACE: |
Room 203 in the building 2, 2nd floor |
| TITLE: |
Accelerator Seminar [Producing micro-bunched beams for rare K-decay experiments] |
| CONTACT: |
masahito.tomizawa kek.jp |
| SPEAKER: |
Dr. Kevin Brown (BNL) |
| LANGUAGE: |
English |
| ABSTRACT: |
Rare K-decay experiments, particularly neutral decays with very
small branching ratios, need to be able to resolve the Kaon
momentum in order to kinematically reject background events from
larger branching ratio decay modes. One simple way to resolve the
Kaon momentum is through time of flight measurements. Producing
a high frequency bunched beam (25 MHz) with very short bunches
(200-300 psec) is necessary to get the required momentum resolution
and kinematic rejection levels needed in a real experiment. The
actual frequency and bunch lengths required depend somewhat on
the detector geometry, of course. In this talk I will describe the motivations
for the bunched beams, the micro-bunching technique
as proposed to have been done at the AGS, and methods of producing
micro-bunched beams at JPARC.
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