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coulomb excitation data analysis codes; gosia 2007 - Physics and ...

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5.31 INPUT OF EXPERIMENTAL γ-RAY YIELDS FROM COULOMB EX-CITATIONThe experimental γ-ray yields from the Coulomb <strong>excitation</strong> experiments should be put in a separate fileTAPE3. (See also OP,FILE in section 5.9). GOSIA then creates TAPE4 if OP,CORR is executed.The structure of the file is as follows:IEXP, NG, ZP, AP, EP, ND, WTexperiment <strong>and</strong> <strong>data</strong> set.This header record appears before the experimental yields for eachIEXP This is the experiment number. The experiments must be input in the same order as used forEXPT <strong>and</strong> OP,YIEL.NGZPAPEPNDNumber of <strong>data</strong> sets for experiment IEXP. is equivalent to the OP,YIEL NDST.Charge number of the projectile.Mass number of the projectile.Bombarding energy of the projectile (MeV).Number of experimental γ-ray yields to be in-put for the specific IEXP <strong>and</strong> <strong>data</strong> set.WTThe weighting factor assigned to a given <strong>data</strong> set (see Eq.3.25). Normally WT=1.0. This weightfactor can be made less than one or zero to reduce or switch off respectively the influence of thisparticular <strong>data</strong> set.All the entries of the header, except WT <strong>and</strong> ND, are used only for reprint of experimental <strong>data</strong>,thereforeusingthevaluesdefined in EXPT <strong>and</strong> OP,YIEL inputs is not strictly required. Nevertheless, it isrecommended to enter IEXP,ZP,AP,EP <strong>and</strong> NG according to the previous definition to make sure thatthe sequence of experimental yields is correct.Each header should be trailed by ND records for that particular experiment <strong>and</strong> <strong>data</strong> set. The formatis:II, IF, Y, ∆Ywhere:IIIFY,DYInitial level index.Final level index.The arbitrarily normalized γ-ray yield for transitionII → IF with absolute experimental error ±∆Y .For unresolved doublets, consisting of the II1 → IF1 transition plus the II2 → IF2 transition, the inputformat is: (100 ∗ II1+II2), (100 ∗ IF1+IF2), Y 1 + Y 2 , ∆(Y 1 + Y 2 ) where:II1,II2 Are the initial level indices for transition 1 <strong>and</strong> 2.IF1,IF2 Are the final level indices for transition 1 <strong>and</strong> 2.Y 1 + Y 2 , ∆(Y 1 + Y 2 )Is the summed yield of the unresolved transitionsII1 → IF12 <strong>and</strong> II2 → IF2 with error ±∆(Y 1 + Y 2 ).There are no restrictions regarding the sequence of the experimental <strong>data</strong> within the single <strong>data</strong> set. Datasets within an experiment should be ordered according to the highest logical detector index. If no clustersare defined (see OP,RAW) this is equivalent to ordering the <strong>data</strong> sets according to the sequence of logicaldetectors defined in OP,YIEL.117

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