[Clas_lmd] Photon rates in CLAS12

[s.schadmand]

You are correct, we need a very conservative estimate. Experience tells that, too.
I do hope we get more beam time than with g12.



On Sep 8, 2015, at 20:57, Amaryan, Moskov <MAmaryan at odu.edu<mailto:MAmaryan at odu.edu>> wrote:

Michael,

One more thing should be taken into account. In CLAS12 Liquid Hydrogen target will be 5cm long compared
to 40cm used for example in g11 run.

This makes expected count rate probably very similar to CLAS6, one should be very careful to not overstate.

Best regards,
Moskov.

On Sep 8, 2015, at 12:09 PM, Michael C. Kunkel <mkunkel at jlab.org<mailto:mkunkel at jlab.org>> wrote:

Greetings,

I see that I was low by one order of magnitude, which means my total events seen should be higher than when I presented.
Either way, the number of eta' dalitz decays in CLAS12 exceeds previous CLAS numbers.

This is mostly due to the increase of efficiency of CLAS and also the amount of particles traversing through e+e- detection due to lorentz boost.


BR
MK
----------------------------------------
Michael C. Kunkel, PhD
Forschungszentrum Jülich
Nuclear Physics Institute and Juelich Center for Hadron Physics
Experimental Hadron Structure (IKP-1)
www.fz-juelich.de/ikp<http://www.fz-juelich.de/ikp>

On 9/8/15 5:33 PM, Amaryan, Moskov wrote:
N_gamma = 60*10^{-9}*10^{-3}/(1.6*10^{-19} ~ 4*10^8


Prof. Moskov Amaryan
Department of Physics
Old Dominion University
4600 Elkhorn Avenue
Norfolk, VA 23529

phone:757-683-4614



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