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qe res dis coh. qe res dis coh. qe res dis coh. qe res dis coh. n from p - ,K - :. n from m +. n from p - ,K - :. n from m +. Different components to antineutrino spectrum. le010z185i. le010z185i. le100z200i. le100z200i. qe res dis coh. qe res dis coh.

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qe

res

dis

coh

qe

res

dis

coh

qe

res

dis

coh

qe

res

dis

coh

n from p-,K-:

n from m+

n from p-,K-:

n from m+

Different components to antineutrino spectrum

le010z185i

le010z185i

le100z200i

le100z200i


qe

res

dis

coh

qe

res

dis

coh

component/all n

All n

From le010z185i MC to determine fraction of antineutrino spectrum corresponding to each component

le010z185i

Use these ratios to determine the components for the le100z200i configuration as well.


MC

MC with syst

MC

MC with syst

MC

MC with syst

MC

MC with syst

n from p-,K-

n from p-,K-

n from m+

n from m+

Example: qel and res components increased by 30%, pME-POT=1e19

LE

pME

LE

pME


Example: qel and res components increased by 30%, pME-POT=1e19

Fluctuate the pME histograms to create fake data set (which now includes these systematics) and fit in usual way:


But original pME-POT=1e19m+ spectra got modified by systematics, so parLE and parME are not the right parameters to look at to find out systematic error.

Consider sucLE and sucME parameters, defined by:

#antineutrinos from m+ predicted by fit, LE

sucLE =

#antineutrinos from m+ in fake data, LE

#antineutrinos from m+ predicted by fit, pME

sucME =

#antineutrinos from m+ in fake data, pME

~6.5% systematic error in our antineutrinos from m+ in LE measurement

For qel and res both increased by 30%, with 1e19 POT of pME-POT

Evidently, when no systematics are added then parLE=sucLE and parME=sucME


qel and res components increased by 30%, different pME-POT pME-POT=1e19

2.5e19 POT

5e19 POT

1e20 POT

7.5e19 POT


MC pME-POT=1e19

MC with syst

n from p-,K-

n from p-,K-

n from m+

n from m+

qel and res components decreased by 30%, pME-POT = 1e19

LE

pME

LE

pME


qel and res components pME-POT=1e19decreased by 30%, different pME-POT

2.5e19 POT

5e19 POT

1e20 POT

7.5e19 POT


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