/[PAMELA software]/DarthVader/TrackerLevel2/src/F77/analysisflight.f
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Annotation of /DarthVader/TrackerLevel2/src/F77/analysisflight.f

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Revision 1.18 - (hide annotations) (download)
Tue Dec 23 11:28:36 2008 UTC (15 years, 11 months ago) by pam-fi
Branch: MAIN
Changes since 1.17: +1 -1 lines
more severe condition for second-track search and some protections added

1 mocchiut 1.1 *************************************************************************
2     * Program analysis.f
3     *
4     * - reads cluster information (LEVEL1, reduction.f output ntuple)
5     * - perform track identification and fit
6     * - create LEVEL2 ntuple
7     *
8     *************************************************************************
9 pam-fi 1.15 subroutine analysisflight
10 mocchiut 1.1
11     include 'commontracker.f'
12 pam-fi 1.4 include 'level1.f'
13 mocchiut 1.1 include 'common_momanhough.f'
14     include 'common_mech.f'
15     include 'common_xyzPAM.f'
16     include 'common_mini_2.f'
17     include 'calib.f'
18     include 'level2.f'
19    
20 pam-fi 1.10 * input flag
21     *
22 pam-fi 1.15 c integer fin
23 pam-fi 1.10
24 mocchiut 1.1 * flag to chose PFA
25     character*10 PFA
26     common/FINALPFA/PFA
27    
28     c parameter (inf=1.e8) !just a huge number...
29    
30     * external functions
31     external npl
32     external acoordsi,coordsi,nld,coord,dcoord
33    
34 pam-fi 1.17 integer hitplanex(6)
35     integer hitplaney(6)
36    
37     logical BAD_NUCLEUS
38    
39 mocchiut 1.1 ************************************************************
40     ************************************************************
41     ************************************************************
42     *
43     * track analysis
44     *
45     ************************************************************
46     ************************************************************
47     ************************************************************
48 pam-fi 1.15
49     call idtoc(pfaid,PFA)
50    
51 mocchiut 1.1
52 pam-fi 1.16 if(DEBUG.EQ.1)then
53 mocchiut 1.1 print*,'----------------------------------'
54 pam-fi 1.15 print*,'Settings: '
55 pam-fi 1.16 print*,'PFA ',pfaid,' ---> ',PFA
56 pam-fi 1.15 print*,'tracking mode ',trackmode
57     print*,'fit-tolerance factor ',fact
58     print*,'minimum n.step ',istepmin
59 pam-fi 1.16
60 mocchiut 1.1 endif
61    
62 pam-fi 1.17 RECOVER_SINGLETS = .false.
63     RECOVER_NUCLEI = .false.
64     SECOND_SEARCH = .false.
65 mocchiut 1.1
66 pam-fi 1.17 ntrk_old = 0
67    
68 mocchiut 1.1 do i=1,nclstr1
69     cl_used(i)=0 !init mask of clusters associated to a track
70     enddo
71 pam-fi 1.17 dedx_x_min = dedx_x_min_mip
72     dedx_y_min = dedx_y_min_mip
73     *------------------------------------------------------
74     call init_level2
75     call init_hough
76     *------------------------------------------------------
77    
78     888 continue
79 mocchiut 1.1
80 pam-fi 1.17
81 mocchiut 1.1 * ///////////////////////////////////////////////
82     * \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
83    
84     iflag=0
85     call track_finding(iflag)
86     if(iflag.eq.1)then !bad event
87     goto 880 !fill ntp and go to next event
88     endif
89    
90 pam-fi 1.17 * -------------------------------------
91     * fill hough output variables only for the first searc
92     * -------------------------------------
93     if(.not.SECOND_SEARCH)call fill_hough
94 pam-fi 1.7
95 mocchiut 1.1 iflag=0
96     call track_fitting(iflag)
97    
98 pam-fi 1.17
99     * ////////////////////////////////////////////////
100     * PATCH to recover events with less than 3 couples
101     * ////////////////////////////////////////////////
102     * if no tracks have been found
103     * and n.planes with at least one couple (planehit)
104     * is less than 3 try to recover applying the hough
105     * transform to singlet
106     nplanehit=0
107     do ip=1,NPLANES
108     if(ncp_plane(ip).gt.0)nplanehit=nplanehit+1
109     enddo
110     if(DEBUG.eq.1)then
111     cc if(.true.)then
112     print*,''
113     print*,'-----------------------------------'
114     print*,'n.tracks ',ntrk
115     print*,'n.hit-planes ',nplanehit
116     endif
117     if(
118     $ .not.RECOVER_SINGLETS.and. !recover only once
119     $ ntrk.eq.0 .and. !no tracks has been found
120     $ nplanehit.le.3 .and. !if less than 3 hit planes (n.real couples)
121     $ .true.)then
122     RECOVER_SINGLETS=.true.
123     cc if(.true.)
124     if(DEBUG.EQ.1)
125     $ print*,' -----> ((( TRY TO RECOVER SINGLETS )))'
126     goto 888 !back to track finding
127     endif
128    
129    
130     * ////////////////////////////////////////////////
131     * PATCH to recover nuclei
132     * ////////////////////////////////////////////////
133     itrk = ntrk !check the last track first
134     isimage = 0
135     BAD_NUCLEUS=.false.
136     150 continue
137    
138     dedxav = 0.
139     npt = 0
140     dedxmin = 1000000
141     if(itrk.gt.0)then
142     do ip=1,NPLANES
143     cc print*,ip,' ** ',dedx_x(ip,itrk),dedx_y(ip,itrk)
144     if(xgood_nt(ip,itrk).eq.1)then
145     dedxav = dedxav + abs(dedx_x(ip,itrk))
146     if(abs(dedx_x(ip,itrk)).lt.dedxmin)
147     $ dedxmin=abs(dedx_x(ip,itrk))
148     npt = npt + 1
149     endif
150     if(ygood_nt(ip,itrk).eq.1)then
151     dedxav = dedxav + abs(dedx_y(ip,itrk))
152     if(abs(dedx_y(ip,itrk)).lt.dedxmin)
153     $ dedxmin=abs(dedx_y(ip,itrk))
154     npt = npt + 1
155     endif
156     enddo
157     if(npt.gt.0)dedxav = dedxav/npt
158     if( dedxav.gt.dedx_min_nuclei )then
159     if( (dedxav-dedxmin)/dedxav.gt.ddedx_min_nuclei )
160     $ BAD_NUCLEUS=.true.
161     endif
162     endif
163     if(DEBUG.eq.1)then
164     cc if(.true.)then
165     print*,''
166     print*,'-----------------------------------'
167     print*,'itrk ',itrk
168     print*,'dedx(average) ',dedxav,' cut ',dedx_min_nuclei
169     print*,'dedx(minimum) ',dedxmin
170     if(dedxav.gt.0)print*,'(av-min)/av',(dedxav-dedxmin)/dedxav
171     $ ,' cut ',ddedx_min_nuclei
172     print*,'BAD_NUCLEUS ? ',BAD_NUCLEUS
173     endif
174    
175     itrk=0
176     if(ntrk.gt.0)itrk = image(ntrk)
177     if(itrk.gt.0.and.isimage.eq.0)then !hence check the image
178     isimage=1
179     goto 150
180     endif
181    
182    
183     if(
184     $ .not.RECOVER_NUCLEI.and. !recover only once
185     $ (ntrk.eq.0.or.BAD_NUCLEUS).and. !no tracks found or bad nucleus
186     $ .true.)then
187    
188     RECOVER_NUCLEI = .true.
189     dedx_x_min = dedx_x_min_nuclei
190     dedx_y_min = dedx_y_min_nuclei
191     cc if(.true.)
192     if(DEBUG.EQ.1)
193     $ print*,' -----> ((( TRY TO RECOVER NUCLEI )))'
194     * ----------------------------------------------
195     * in case of re-tracking, un-tag used clusters
196     * ----------------------------------------------
197     if(ntrk.ne.0)then
198     do ip=1,NPLANES
199     if(cltrx(ip,ntrk).ne.0)cl_used(cltrx(ip,ntrk)) = 0 !un-tag used clusters
200     if(cltry(ip,ntrk).ne.0)cl_used(cltry(ip,ntrk)) = 0 !un-tag used clusters
201     enddo
202     ntrk = ntrk-1 !decrement track
203     if(isimage.eq.1)then
204     do ip=1,NPLANES
205     if(cltrx(ip,ntrk).ne.0)cl_used(cltrx(ip,ntrk)) = 0 !un-tag used clusters
206     if(cltry(ip,ntrk).ne.0)cl_used(cltry(ip,ntrk)) = 0 !un-tag used clusters
207     enddo
208     ntrk = ntrk-1 !decrement track image
209     endif
210     endif
211     goto 888 !back to track finding
212    
213     endif
214     * ----------------------------------------------
215     * back to default parameters for the second-track search
216     * ----------------------------------------------
217     if(RECOVER_NUCLEI)then
218     dedx_x_min = dedx_x_min_mip
219     dedx_y_min = dedx_y_min_mip
220     RECOVER_NUCLEI = .false.
221     endif
222    
223     if(ntrk.eq.0)goto 880
224    
225     * /////////////////////////////////////////////////////
226     * PATCH to perform a more efficient second-track search
227     * /////////////////////////////////////////////////////
228     * -------------------------------------------------
229     * n. hit planes and number of clusters
230     * -------------------------------------------------
231     do ip=1,NPLANES
232     hitplanex(ip)=0
233     hitplaney(ip)=0
234     nclusters=0
235     enddo
236     do icl=1,nclstr1
237     ip = npl(VIEW(icl))
238     if(cl_good(icl).eq.0.or.cl_used(icl).eq.1)goto 9
239     if(mod(VIEW(icl),2).eq.1)hitplaney(ip)=hitplaney(ip)+1 !YY
240     if(mod(VIEW(icl),2).eq.0)hitplanex(ip)=hitplanex(ip)+1 !XX
241     nclusters=nclusters+1
242     9 continue
243     enddo
244     nhitplaney=0
245     nhitplanex=0
246     do ip=1,NPLANES
247     if(hitplaney(ip).gt.0)nhitplaney=nhitplaney+1
248     if(hitplanex(ip).gt.0)nhitplanex=nhitplanex+1
249     enddo
250     * -------------------------------------------------
251     * chi2 cut
252     * -------------------------------------------------
253     p0 = 1.111588e+00
254     p1 = 1.707656e+00
255     p2 = 1.489693e-01
256     chi2m025 = p0
257     $ + abs(al_nt(5,ntrk))*p1
258     $ + al_nt(5,ntrk)*al_nt(5,ntrk)*p2
259     chi2m025_0 = p0 + 0.07*p1 + 0.07*0.07*p2
260     cc chi2m = (chi2m025-chi2m025_0+12**0.25)**4. !95%
261     chi2m = (chi2m025-chi2m025_0+20.**0.25)**4. !???
262     * -------------------------------------------------
263     * image track
264     * -------------------------------------------------
265     ntrk_best = ntrk
266     chi2_best = chi2_nt(ntrk)
267     if(image(ntrk).ne.0)
268     $ chi2_best = min(chi2_nt(ntrk),chi2_nt(image(ntrk)))
269     if(DEBUG.eq.1)then
270     cc if(.true.)then
271     print*,''
272     print*,'-----------------------------------'
273     print*,'chi2_nt(',ntrk_best,') = ',chi2_best,' < ',chi2m,' ?'
274     print*,'nhitplanex',nhitplanex
275     print*,'nhitplaney',nhitplaney
276     print*,'nclusters',nclusters
277     endif
278     if(
279     $ ntrk.gt.ntrk_old.and. !one track must have been already found
280     $ chi2_best.gt.0 .and. !this track must not be garbage
281     $ chi2_best.lt.chi2m .and. !"
282     $ nhitplaney.ge.3.and. !a minimum number of hit planes is required
283     $ nhitplanex.ge.3.and. !"
284     $ nclusters.le.20.and. !limit on number of clusters to save time
285     $ .true.)then
286    
287     SECOND_SEARCH=.true.
288 pam-fi 1.18 c RECOVER_SINGLETS=.true. !OPTIMIZATION
289 pam-fi 1.17 ntrk_old=ntrk
290    
291     if(DEBUG.EQ.1)
292     cc if(.true.)
293     $ print*,'***** NEW SEARCH ****'
294     goto 888 !back to track finding
295 mocchiut 1.1
296 pam-fi 1.17 endif
297 mocchiut 1.1
298     880 continue
299    
300     * **********************************************************
301     * stores info about clusters not associated with any track
302     * **********************************************************
303    
304     call fill_level2_siglets
305    
306 pam-fi 1.16 if(DEBUG.EQ.1)then
307 mocchiut 1.1 print*,''
308     print*,'DONE!'
309     print*,''
310     print*,'* summary *'
311     print*,'tracks ',ntrk
312     print*,'cl used ',(cl_used(i),i=1,nclstr1)
313     print*,''
314     print*,''
315     endif
316 pam-fi 1.5
317     ngood = 0
318     do iv = 1,nviews
319     ngood = ngood + good1(iv)
320     enddo
321 mocchiut 1.1
322     8800 continue
323    
324    
325     * ///////////////////////////////////////////////
326     * \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
327    
328     100 continue
329    
330     return
331     end
332    
333    
334     ************************************************************
335    
336    

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