bin: p=3-6, pt=0.3-0.5 Track configuration: vt1 or vt2 or vt2+mt or vt1+vt2+mt, few wrong-side No tracking problems here. Should be careful with any bx,by cuts! Positives --------- 5: really main vertex track? 10: not well determined momentum, 11 points in vt1 51: V0 candidate, (bx=14cm, by=-7cm) 53: V0 candidate with perfect bx,by 88: not main vertex track (bx=17cm, by=0cm) 99: very good! Negatives --------- 10: not main vertex track (bx=-15cm, by=0cm) 18,38: very good (ppoints)! 40: kink in mt or #34 is another track 42,43,46,48,87: very short pieces (7,8,10,13,13 points) 56: extrapolation lines stop between vt1 and mt, track is ok 61: magic Positives 12 ++-----------**--***---------+-------------+--------------+------------++ 10 ++ ** * * + + + ++ 8 ++ **** *** ** * ++ 6 ++ ** * **** * * ** ++ 4 ++ * *** *** *** ****** ++ 2 ++** + **** * ** ****** ** *** + ++ 0 ***-----------+-------**-***-**------*******-************************--++ 0 50 100 150 200 250 Number of points Negatives 9 ++--------$$$$$$$$$----------+--------------+-------------+-------------++ 7 ++ $$$$$ $ $$ $$ $ + + + ++ 6 ++ $ $ $ $$ $ ++ 4 ++ $ $$$$ $$ $$ $$$ ++ 3 ++$$ $ $ $ ++ 1 ++$ + $$$$$$$$$$$$$$$$$ $$ $$ + + ++ 0 $$$------------+--------$$---+--------$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$--++ 0 50 100 150 200 250 Number of points Positives 45 ++-----+------+-------+------+------**-----+------+-------+------+-----++ 43 ++ + + + + ** + + + + ++ 40 ++ ** ++ 38 ++ ** ++ 35 ++ ** ++ 32 ++ ** ++ 30 ++ ** ++ 27 ++ ** ++ 25 ++ *** ++ 22 ++ * * ++ 20 ++ * * ++ 17 ++ * * ++ 15 ++ * * ++ 12 ++ * * ++ 19 ++ * * ++ 7 ++ * * ++ 4 ++ * * ++ 2 ++ + + + + ***+**** + + + + ++ 0 **********************************--+---********************************* -50 -40 -30 -20 -10 0 10 20 30 40 50 bx [cm] Negatives 27 ++-----+------+-------+------+------$------+------+-------+------+-----++ 25 ++ + + + + $ + + + + ++ 24 ++ $ ++ 22 ++ $ ++ 21 ++ $ ++ 19 ++ $ ++ 18 ++ $ ++ 16 ++ $ ++ 15 ++ $ ++ 13 ++ $ ++ 12 ++ $ ++ 10 ++ $$ ++ 9 ++ $$ ++ 7 ++ $$ ++ 6 ++ $$$ ++ 4 ++ $$$ ++ 3 ++ $$ $ ++ 1 ++ + + + $+ $$$$ +$$$$ +$ $ + + ++ 0 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$--+-$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ -10 -8 -6 -4 -2 0 2 4 6 8 10 by [cm]