From: Marco Germinario (germina@hilux03.nbi.dk)
Date: Sat Apr 19 2003 - 18:15:03 EDT
Hi, I just wanted to inform that I made some BRAG simulations to calculate the momentum dependent correction for protons and deuterons absorption at 90 and 35 degrees. I needed them to correct the proton and deuteron spectra before to calculate the coalescence parameter B2 (for my master thesis), and maybe they could be useful for some of you. I used the option 'hadr = 4' for protons. Since the same option didn't work for deuterons (the ratio was 1 in all the momentum range), after consulting with Peter i used the option 'hadr =2' which gave reasonable results. The plots can be seen at http://www.nbi.dk/~germina/brag/ Deuteron absorption correction at 90 deg. appears to be consistent with the protons one, being ca. the double for momentum bigger than one. Now I miss absorption calculation for antideuterons. As you know know BRAG doesn't have antideuterons. So,since i use deuterons with momentum larger than one, I was thinking to use the double of the correction for anti-protons as reasonable approximation. Thanks Marco -- Marco Germinario -------------------------------------------------- University address : Personal address : Niels Bohr Institute : Noerre Alle' 75,518 Blegdamesvej 17,Ta-2 : Egmont kollegium Copenhagen, Danmark : 2100 Copenhagen Mail: germina@nbi.dk : Danmark Tlf : + 45 35325305 : Tlf: +45 82320518 Mob: +45 26720446 ---------------------------------------------------
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