ePIC pfRICH mailing list

["Kiselev, Alexander" <ayk AT bnl.gov>]

  Hi Thomas,

  so we agree it should be 7, among ourselves? 🙂

  My main concern is that sooner or later somebody more influential (or vocal) than I am realizes that 3 sigma separation is a situation where two gaussians with a sigma of 1.0 are sitting at a distance of 3.0 from each other, which means they are overlapping like hell. It was nice for those who came up with this definition first (I actually do not know who were they; first definition I saw was in a CLAS12 publication) to proudly claim in a paper that "we achieved 3 sigma separation up to N GeV/c", but in reality I'm sorry this is a lousy 1.5 sigma equivalent overlap.

    Cheers,

     Alexander.

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From: Eic-projdet-pfrich-l <eic-projdet-pfrich-l-bounces AT lists.bnl.gov> on behalf of Thomas Ullrich via Eic-projdet-pfrich-l <eic-projdet-pfrich-l AT lists.bnl.gov>
Sent: Wednesday, November 9, 2022 5:28 PM
To: eic-projdet-pfrich-l AT lists.bnl.gov <eic-projdet-pfrich-l AT lists.bnl.gov>
Subject: [Eic-projdet-pfrich-l] on the upper p limit

 

Hi All,

from the YR:
Table 8.20 in Summary of Requirements says clearly 7 GeV/c

Table 8.2 from SIDIS says 7 GeV/c


Table 3.1 in Exec Summary says 10 GeV/c

If you look at the attached plot you see that 7 GeV/c is truely getting
most of it. Interestingly this is where h/e ~ 1.

- Thomas