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mocchiut |
1.1 |
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* |
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* Common for the track analysis, performed by the routine mini.f |
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* |
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*************************************************************************** |
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c PARAMETER (PIGR=3.141592654)!??????????????????? |
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* ------------------------------------------------------------------------- |
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* A TRACK is defined by: |
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* - the measured points associated to it |
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* - their spatial resolution |
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* - the track status vector AL-pha |
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* |
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* This common must be filled when calling mini_2. After the fit, |
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* the initial values of AL-pha (initial guess, for instance from Hough) |
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* are replaced with the minimization result. |
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* |
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* About the measured points: |
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* - a COUPLE defines a point in the space; in this case you should set |
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* |
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* XGOOD = 1 |
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* YGOOD = 1 |
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* XM,YM,ZM = coordinates of the point in cm |
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* RESX = spatial resolution of cl-x |
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* RESY = spatial resolution of cl-y |
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* |
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* - a SINGLET (single cluster x/y) defines a segment AB, parallel to |
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* the x/y strips; in this case you should set, for example in the case |
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* of a cl-x: |
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* |
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* XGOOD = 1 |
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* YGOOD = 0 |
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* ZM = average z coordinate of the segment AB in cm |
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* XM_A,YM_A = coordinates of extreme point A |
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* XM_B,YM_B = coordinates of extreme point B |
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* RESX = spatial resolution of cl-x |
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* |
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* NB!!! ZM must be always initialized, at least with the mechanical positions |
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* |
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* (All the needed quantities for couples and singlets can be evaluated |
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* by means of the routine xyz_PAM) |
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* ------------------------------------------------------------------------- |
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REAL*8 AL |
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REAL*8 XM,YM,ZM |
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REAL*8 XM_A,YM_A!,ZM_A |
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REAL*8 XM_B,YM_B!,ZM_B |
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REAL*8 XGOOD,YGOOD |
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REAL*8 RESX,RESY |
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c REAL*8 DEDXTRK !(1) |
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REAL*8 DEDXTRK_X !(1) |
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REAL*8 DEDXTRK_Y !(1) |
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COMMON/TRACK/ |
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$ AL(5) !track parameters |
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$ ,XM(NPLANES),YM(NPLANES),ZM(NPLANES) !couple => xyz point |
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$ ,XM_A(NPLANES),YM_A(NPLANES)!,ZM_A(NPLANES) !single cl => segment AB |
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$ ,XM_B(NPLANES),YM_B(NPLANES)!,ZM_B(NPLANES) ! |
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$ ,RESX(NPLANES),RESY(NPLANES) !spatial resolution |
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$ ,XGOOD(NPLANES),YGOOD(NPLANES) !mask of included views |
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c $ ,DEDXTRK(NPLANES) !energy release |
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$ ,DEDXTRK_X(NPLANES),DEDXTRK_Y(NPLANES) !(1) |
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c****************************************************** |
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cccccc 06/10/2005 modified by elena vannuccini ---> (1) |
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c****************************************************** |
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* ------------------------------------------------------------------------- |
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* The FIT info includes: |
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* - REDUCED chi2 |
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* - number of d.o.f. |
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* - evaluated coordinates (track intersection with the silicon planes) |
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* - projected angles |
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* - parameter covariance matrix |
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* ------------------------------------------------------------------------- |
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REAL*8 CHI2 |
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REAL*8 XV,YV,ZV |
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REAL*8 AXV,AYV |
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REAL*8 COV |
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COMMON/FIT_INFO/ |
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$ CHI2 |
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$ ,XV(NPLANES),YV(NPLANES),ZV(NPLANES) |
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$ ,AXV(NPLANES),AYV(NPLANES) |
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$ ,COV(5,5) |
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* ------------------------------------------------------------------------- |
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* Other commons needed by the minimization procedures: |
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* ------------------------------------------------------------------------- |
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* computation of chi^2 and its derivatives |
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REAL*8 CHI2D,CHI2DD !first and second derivatives of chi^2 |
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REAL*8 DXDAL,DYDAL !first derivatives of x and y on AL-pha |
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REAL*8 STEPAL ! |
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REAL*8 ZINI !z coordinate of reference plane |
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COMMON/MINICOM/ |
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$ CHI2D(5),CHI2DD(5,5) |
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$ ,DXDAL(NPLANES,5),DYDAL(NPLANES,5) |
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$ ,STEPAL(5) |
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$ ,ZINI |
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* ------------------------------------------------------------------------- |
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* convergence conditions |
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REAL*8 ALTOL !tolerances on AL-pha parameters |
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REAL*8 ALMAX,ALMIN !maximum and minimum value for AL-pha parameters |
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INTEGER ISTEPMAX !maximum number of steps |
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COMMON/MINICON/ |
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$ ALTOL(5) |
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$ ,ALMAX(5),ALMIN(5) |
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$ ,ISTEPMAX |
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* ------------------------------------------------------------------------- |
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* variables for the tracking (routine posxy) |
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REAL*8 VECT,VECTINI,VOUT !vectors for Runge-Kutta method |
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REAL*8 TOLL !tolerance from plane |
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REAL*8 STEPMAX !maximum number of steps |
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REAL*8 CHARGE !sign of electric charge |
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COMMON/TRACKING/VECT(7),VECTINI(7),VOUT(7),TOLL,STEPMAX, |
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$ CHARGE |
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