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eta_c drop in efficiency [message #12731]

Wed, 19 October 2011 18:02

Gianluigi Boca
Messages: 177
Registered: March 2004

first-grade participant

From: *gsi.de

hello,
I investigated the discrepancy in efficiency in the Eta_c channel
when using the july11 release or the latest trunk version.
( pandaroot/macro/run/tdrct/eta_c directory).

In my opinion the problem is in the generation/digitization of the
Eta_c events.

In fact, when I use the events generated and digitized (i.e. the
evt_points_stt.root and evt_params_stt.root and evt_digi_stt.root files) with the july11 libraries AND I ANALYSE THEM WITH THE
CURRENT TRUNK REVISION I obtain the same Eta_c plots obtained
when I ANALYSE THE SAME EVENTS WITH THE july11 VERSION OF THE CODE.

Please look at the attachment plots : trunk.pdf is when
the analysis is done with trunk, july11.pdf when I use the
july11 library.

Gianluigi

Attachment: trunk.pdf
(Size: 17.48KB, Downloaded 476 times)
Attachment: july11.pdf
(Size: 17.58KB, Downloaded 418 times)

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[Message index]

		eta_c drop in efficiency By: Gianluigi Boca on Wed, 19 October 2011 18:02
		Re: eta_c drop in efficiency By: Dima Melnychuk on Wed, 19 October 2011 22:22
		Re: eta_c drop in efficiency By: StefanoSpataro on Thu, 20 October 2011 10:00

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