AD keeps records coming
The Accelerator Division achieved three new records last week and obtained some of the highest luminosity stores yet.
During approximately the last two weeks, initial luminosity has been steadily climbing from 300 µb-1/s to more than 350. With high initial luminosities and sustained integration time, the chances of discovery-generating collisions increases.
The average weekly integrated luminosity for the week ending Monday, March 8, rose to 61.84 inverse picobarns. This marks the third week in a row averaging over 60 inverse picobarns. In addition, two of this last week’s stores ranked among the top five largest ever.
While AD Run Coordinators Mary Convery and Cons Gattuso were announcing these records during the March 10 All Experimenter’s meeting, the Tevatron reached yet another new height, setting an average initial luminosity record of 354.4 µb-1/s up from the previous level of 353.2 .
This week of record-setting work is far from an outlier. The Tevatron’s overall integrated and peak luminosities are ahead of where they were at this time last fiscal year.
The Accelerator Division credits the success to a combination of hard work by all division lines, machine reliability that allows the stores to build upon one another, fine-tuning of equipment and, last week, studies using only an antiproton store. While the antiproton study requires more downtime, the run coordinators said it pays off in a luminosity boost and has become a regular part of accelerator operations.
You can view all of the recent luminosity plots here.
-- Tona Kunz