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Lambda Lambdabar simulations [message #16309]

Tue, 15 April 2014 12:10

Karin Schönning
Messages: 65
Registered: August 2012
Location: Uppsala University

continuous participant

From: *physics.uu.se

Yesterday's meeting (which I regret I could not follow to the end) triggered some discussion on the Lambda Lambdabar channel and in particular the acceptance in the forward direction. Donghee has suggested it may be improved if the requirement of all four final state particles being reconstructed in the final state. This is probably true but I don't think this is the reason for the discrepancy with the physics book results (or the thesis of Sohie Grape where the details are given). Sophie required all final state particles (but no paricle ID), vertex fit of both Lambda and Lambdabar, mass cuts of the same and also a tree fit for pbar p -> Lambdabar Lambda. On the other hand, pandaroot was not used for these results but only the old, BABAR based framework. It is of course much less realistic but I would be surprised if it causes something as significant as the forward acceptance. I am also looking into the Lambdabar Lambda channel now and will check if I reproduce Donghee's findings.

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[Message index]

		Lambda Lambdabar simulations By: Karin Schönning on Tue, 15 April 2014 12:10
		Re: Lambda Lambdabar simulations By: StefanoSpataro on Tue, 15 April 2014 13:03
		Re: Lambda Lambdabar simulations By: donghee on Tue, 15 April 2014 14:21
		Re: Lambda Lambdabar simulations By: StefanoSpataro on Tue, 15 April 2014 14:23
		Re: Lambda Lambdabar simulations By: Klaus Götzen on Tue, 15 April 2014 14:51
		Re: Lambda Lambdabar simulations By: donghee on Wed, 16 April 2014 10:30
		Re: Lambda Lambdabar simulations By: Karin Schönning on Wed, 16 April 2014 10:47
		Re: Lambda Lambdabar simulations By: StefanoSpataro on Wed, 16 April 2014 12:28
		Re: Lambda Lambdabar simulations By: donghee on Thu, 17 April 2014 14:56
		Re: Lambda Lambdabar simulations By: StefanoSpataro on Thu, 17 April 2014 15:03
		Re: Lambda Lambdabar simulations By: donghee on Thu, 17 April 2014 16:09
		Re: Lambda Lambdabar simulations By: StefanoSpataro on Thu, 17 April 2014 17:10
		Re: Lambda Lambdabar simulations By: Klaus Götzen on Thu, 17 April 2014 17:34
		Re: Lambda Lambdabar simulations By: donghee on Fri, 18 April 2014 10:52
		Re: Lambda Lambdabar simulations By: StefanoSpataro on Fri, 18 April 2014 11:01
		Re: Lambda Lambdabar simulations By: Karin Schönning on Thu, 24 April 2014 11:39
		Re: Lambda Lambdabar simulations By: Bertram Kopf on Tue, 15 April 2014 15:19
		Re: Lambda Lambdabar simulations By: Karin Schönning on Tue, 15 April 2014 15:27
		Re: Lambda Lambdabar simulations By: donghee on Wed, 16 April 2014 11:00
		Re: Lambda Lambdabar simulations By: StefanoSpataro on Wed, 16 April 2014 12:19
		Re: Lambda Lambdabar simulations By: donghee on Wed, 16 April 2014 12:29
		Re: Lambda Lambdabar simulations By: donghee on Fri, 25 April 2014 02:00
		Re: Lambda Lambdabar simulations By: asanchez on Fri, 25 April 2014 12:41
		Re: Lambda Lambdabar simulations By: StefanoSpataro on Fri, 25 April 2014 12:56
		Re: Lambda Lambdabar simulations By: asanchez on Fri, 25 April 2014 13:04
		Re: Lambda Lambdabar simulations By: StefanoSpataro on Fri, 25 April 2014 13:06
		Re: Lambda Lambdabar simulations By: asanchez on Fri, 25 April 2014 13:57

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