Dear JH and Flemming, Thanks for the clarification, and with this definition I certainly agree that it is being misused in the text! ..steve J.H. Lee wrote: > Dear Steve, > Here is the definition of exclusive measurement of interactions > what the community (mainly HEP) understand and use. > > "A measurement of particle interactions in which all participating particles > are identified and measured or computed in momentum (for the opposite, > Inclusive Measurement of Interactions). Exclusive measurements including all > particles of an interaction are usually possible only at relatively low > laboratory energies and for simple interaction types like two- and > three-body final states. " > > The word "exclusive" is rarely used in the heavy ion community, because it's > very hard to measure a HI event exclusively, as we all know. > > JH > > > ----- Original Message ----- > From: "Stephen J. Sanders" <ssanders@ku.edu> > To: <brahms-l@bnl.gov> > Sent: Wednesday, November 21, 2001 12:05 PM > Subject: Re: MULT PAPER. vers. 33. That's it. > > >> Hi JH, >> This statement has been bothering me since it suggests I have the wrong >> idea the difference between exclusive and inclusive measurements. >> With the spectrometer arms we can determe the particle type and >> momentum: I would consider that to be an "exclusive" measurement >> since we know everything there is to know. This is in contrast with, >> for example, the si and tile detectors where we only and deduce the >> number of particles--what I would consider to be an inclusive measurement. >> In this context, I think the wording in the draft if correct. >> Or, are you taking issue with the admittedly abbreviated use of >> "magnetic spectrometers" to stand for "magnetic spectrometers with > > Cherenkov > >> and time-of-flight paritcle identification"? >> >> Regards, Steve >> >> >>> - page 3: "The BRAHMS experiment consists of ... for measuring >>> >>> exclusive charged particle..." >>> >>> We measure inclusive and semi-inclusive spectra, but certainly can't >>> >>> measure exclusive particle spectra. >>>
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