Kspipi 0 UPDDALITZ

Intro

Peter generated new MC by using the corrected Dalitz structure for Kspipi0. We'd like to see what't the effect on the yields.

The "signflip" MC (new Dalitz structure) for Ks pi pi0 is available in
/nfs/cor/an1/ponyisi/dhad/summerconf/signal/dtuple_c_0525_p2_1104, in
all the files with "Kspipi0_UPDDALITZ" in the name.

Process

• Get the fit parameters ¹

Only the line with Kspipi0 changed with respect to the original fit.

Mode	sigma (MeV)	fa	fb	sa	sb
D0 &rarr K- &pi+	4.05 ± 0.17	0.182 ± 0.045	0.0053 ± 0.0025	2.30 ± 0.14	3.52 ± 0.70
D0 &rarr K- &pi+ &pi0	6.95 ± 0.28	0.196 ± 0.036	0.0215 ± 0.0052	2.48 ± 0.15	3.16 ± 0.43
D0 &rarr K- &pi+ &pi- &pi+	4.60 ± 0.18	0.096 ± 0.039	0.0093 ± 0.0053	2.37 ± 0.33	2.81 ± 0.57
D+ &rarr K- &pi+ &pi+	4.36 ± 0.16	0.137 ± 0.039	0.0073 ± 0.0016	2.22 ± 0.14	4.00 ± 0.16
D+ &rarr K- &pi+ &pi+ &pi0	6.21 ± 0.37	0.186 ± 0.055	0.0512 ± 0.0168	2.48 ± 0.33	2.92 ± 0.56
D+ &rarr KS0 &pi+	4.11 ± 0.26	0.166 ± 0.066	0.0049 ± 0.0018	2.25 ± 0.17	4.00 ± 0.33
D+ &rarr KS0 &pi+ &pi0	6.06 ± 2.03	0.500 ± 0.468	0.0923 ± 0.0235	1.62 ± 1.51	3.17 ± 0.33
D+ &rarr KS0 &pi+ &pi+ &pi-	4.32 ± 0.31	0.162 ± 0.059	0.0104 ± 0.0044	2.62 ± 0.28	4.00 ± 2.36
D+ &rarr K+ K- &pi+	4.57 ± 0.22	0.121 ± 0.057	0.0085 ± 0.0037	2.22 ± 0.28	3.13 ± 0.51

• Do the single tag fit and compare the yields ²

Mode	signal diff(%)
D0 &rarr K- &pi+	0.00
D 0&rarr K+ &pi-	0.00
D0 &rarr K- &pi+ &pi0	0.00
D 0&rarr K+ &pi- &pi0	0.00
D0 &rarr K- &pi+ &pi- &pi+	0.00
D 0&rarr K+ &pi- &pi+ &pi-	0.00
D+ &rarr K- &pi+ &pi+	0.00
D- &rarr K+ &pi- &pi-	0.00
D+ &rarr K- &pi+ &pi+ &pi0	0.00
D- &rarr K+ &pi- &pi- &pi0	0.00
D+ &rarr KS0 &pi+	0.00
D- &rarr KS0&pi-	0.00
D+ &rarr KS0 &pi+ &pi0	4.96
D- &rarr KS0&pi- &pi0	4.95
D+ &rarr KS0 &pi+ &pi+ &pi-	0.00
D- &rarr KS0&pi- &pi- &pi+	0.00
D+ &rarr K+ K- &pi+	0.00
D- &rarr K- K+ &pi-	0.00

Conclusion

Difference of the yield in 5% level. Must use this for the regular fit.

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1. Fitting plots see here. Table details see here.

2. Fitting plots see here. Table details see here.