HiRA Wiki

Suwat, Mike, Rachel, Bec, Bill, Dan, Betty, Jack, Zibi

• EOS meeting in Syracuse, Italy September 2012. Only those with results get to go.
• Astrophysics meeting at MSU, October? 2012
• Nuclear structure meeting at Argonne, August 2012

• Yingxun will be here for 3 weeks, starting May 13
• Our summer student is arriving around May 9
• Sergio is coming sometime in April

• Lab Move: floor is finished, then they will paint the walls (maybe?). Possibly moving next week.
• Efficiency (Jack): Two methods. A. Calculate fraction of the solid angle for each pixel. B. phi vs theta, times sin(theta)–integrate. Should equal A. For Method B to work, need enough bins in phi, theta and enough bins for each pixel
• Lee's Experiment: no update on the preamp box. Got remaining chip boards.
• HiRA Cans: ordering more screws. Jack will make sure Jimmy has the correct drawings.

• Mike: E vs. Theta in lab and center of mass. No efficiency correction (yet). Theta/dOmega not smooth through theta
• Rachel: E vs Theta for 05049. Multiplicity issues: the miniball multiplicity is from the TDC, did not work for first 3/4 of the experiment. So for now will use CsI multiplicity for cuts
• Zibi: study of varying theta(cm) cuts. Does not see a big dependence on width of Theta(cm) cut.
• Cuts on centrality: affects single-yields but not double ratio
• BUU: DR(n/p) always flat, DR(t/3He) increases with increasing energy (in calcium).