Hi, it assumes beta==1 for the multiple scattering. I know where this is set but I haven’t yet thought about if that is the only place you would change that to make it work for a different assumption. Maybe someone else has time to think about this, or better, have done this before? /pelle On Feb 10, 2015, at 4:11 PM, Graf, Norman A. <[log in to unmask]<mailto:[log in to unmask]>> wrote: Hello Sebouh, Energy loss is not currently accounted for in the track fit. Norman ________________________________ From: [log in to unmask]<mailto:[log in to unmask]> <[log in to unmask]<mailto:[log in to unmask]>> on behalf of Sebouh Paul <[log in to unmask]<mailto:[log in to unmask]>> Sent: Tuesday, February 10, 2015 11:09 AM To: hps-software Subject: reconstruction: does it account for multiple scattering/brehmstralung? I have been looking at the resolution of the SVT for reconstructing the A' invariant mass for muon events, and I have a question about the reconstruction software's internal workings: does it by default take into account energy loss and multiple scattering due to brehmstralung? I assume if so, then it is calibrated under the assumption that the particle is an electron. If this is the case, is there a way to either disable this feature or (better yet) have it make the assumption that the particle is a muon (so that I can get a more accurate measurement of the A' mass resolution)? thanks ________________________________ Use REPLY-ALL to reply to list To unsubscribe from the HPS-SOFTWARE list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=HPS-SOFTWARE&A=1 ________________________________ Use REPLY-ALL to reply to list To unsubscribe from the HPS-SOFTWARE list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=HPS-SOFTWARE&A=1 ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the HPS-SOFTWARE list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=HPS-SOFTWARE&A=1