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SUBROUTINE NSHOWER(IERR,RNUMX,RNUMY,ENERGIAX,ENERGIAY) |
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C---------------------------------------------------------------------- |
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C- |
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C- Purpose and Methods : IT IDENTIFIES ELECTROMAGNETIC SHOWERS USING : |
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C- CENTER OF GRAVITY IN THE FIRST HALF - SECOND HALF OF THE CALORIMETER . |
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C- RNUMX AND RNUMY (X AND Y VIEW) ARE THE DISTANCES IN mm OF THE CLUSTERS |
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C- CLOSEST TO THE TRACK NORMALIZED TO THE TRACK . |
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C- ENERGIAX AND ENERGIAY ARE THE ENERGY OF THESE CLUSTERS . |
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C- THE CENTERS OF GRAVITY AND THE CLUSTERS COME FROM THE ROUTINE CLUSTER2 . |
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C- |
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C- Inputs : |
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C- Outputs : |
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C- Controls: |
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C- |
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C- Created 3-NOV-1993 MIRKO BOEZIO |
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C- |
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C---------------------------------------------------------------------- |
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INCLUDE 'INTEST.TXT' |
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C |
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INTEGER LK(2) |
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INTEGER IBAR(2,NPLAV) |
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INTEGER ITL,I,LPIANO |
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REAL RX(2),RY(2) |
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REAL RIL(NCHA/2) |
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REAL BAR(2,NPLAV) |
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REAL TG(2) |
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REAL DAD |
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COMMON / VARIE / MAX |
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SAVE / VARIE / |
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COMMON / INIZIO / INPIA |
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SAVE / INIZIO / |
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COMMON / IMPULSO / QUAMOT |
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SAVE / IMPULSO / |
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COMMON / DOVE / NX, NY, LUNGH |
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SAVE / DOVE / |
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COMMON / TANGENTI / TG |
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SAVE / TANGENTI / |
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COMMON / ANGOLO / BAR, IBAR |
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SAVE / ANGOLO / |
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DATA DAD / 0. / |
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C |
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LPIANO = NPLA / 2 |
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c |
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CALL CLUSTER2 |
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C |
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ITL = 0 |
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IALFA = 0 |
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CONTINUE |
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C |
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DO I = 1,NCHA/2 |
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RIL(I) = 1000. |
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ENDDO |
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C |
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DAD = 0. |
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RX(1) = 0. |
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RX(2) = 0. |
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RY(1) = 0. |
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RY(2) = 0. |
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C |
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DO M = 1,2 |
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DO J = 1,2 |
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C |
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DO I = 1,NCHA/2 |
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RIL(I) = 1000. |
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ENDDO |
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C |
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LK(J) = 0 |
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C |
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IF (J.EQ.1) ITL = (LPIANO + 1) / 2 |
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IF (J.EQ.2) ITL = (NPLA + LPIANO + 1) / 2 |
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C |
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DAD = BAR(M,ITL) |
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C |
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C EM |
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C |
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IF (DAD.LT.-6..OR.DAD.GT.246.) GOTO 555 |
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C |
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C END EM |
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C |
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NGIR = NCL2(M,J) |
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IF (NGIR.EQ.0) GO TO 555 |
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DO L = 1,NGIR |
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RIL(L) = ABS(DAD - CLUS2(M,J,L)) |
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ENDDO |
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MM = NCHA/2 |
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LK(J) = LVMIN(RIL,MM) |
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C |
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IF (CLUS2(M,J,LK(J)+NCHA/2).GT.EMIN) THEN |
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IF (M.EQ.1) THEN |
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ENERGIAX = ENERGIAX + CLUS2(M,J,LK(J)+NCHA/2) |
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RX(J) = CLUS2(M,J,LK(J)) - DAD |
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ENDIF |
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IF (M.EQ.2) THEN |
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ENERGIAY = ENERGIAY + CLUS2(M,J,LK(J)+NCHA/2) |
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RY(J) = CLUS2(M,J,LK(J)) - DAD |
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ENDIF |
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ENDIF |
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C |
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555 CONTINUE |
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ENDDO |
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C |
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IF (M.EQ.1) RNUMX = ABS( RX(2) - RX(1) ) |
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IF (M.EQ.2) RNUMY = ABS( RY(2) - RY(1) ) |
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C |
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ENDDO |
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C |
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ESOGLIATOT = 50. |
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EINT = 10. |
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C |
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IF (ENERGIAX.EQ.0.OR.ENERGIAY.EQ.0) THEN |
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II = 1 |
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ENDIF |
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C |
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EINF = ENERGIAX - EINT |
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ESUP = ENERGIAX + EINT |
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ETOT = ENERGIAX + ENERGIAY |
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C |
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IF (ENERGIAY.LT.EINF.OR.ENERGIAY.GT.ESUP.OR. |
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& ETOT.LT.ESOGLIATOT) GO TO 2 |
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C |
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GO TO 10 |
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C |
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2 IERR = 1 |
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C |
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10 CONTINUE |
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|
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RETURN |
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END |
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