INSS 2019 Group Work Presentation - indico.fnal.gov · Group Work Presentation Group 10: Sean...
Transcript of INSS 2019 Group Work Presentation - indico.fnal.gov · Group Work Presentation Group 10: Sean...
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INSS 2019 Group Work Presentation
Group 10: Sean Gilligan Katie Mason Yue Wang Rafaela Rossi Ohana Benevides
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1. Given the following sets of oscillation parameters, what would be the optimal run plan for NOvA to determine specifically the mass hierarchy ? Assume and monochromatic beam at .
1.
2.
3.
4.
2. For the case where we do not know those parameters beforehand, what would the run plan be?
3. For which case the run plan for question #2 would fail?
36 × 1020 POTE = 1.9 GeV
NH, sin2(θ23) = 0.6, δcp =3π2
NH, sin2(θ23) = 0.4, δcp =3π2
IH, sin2(θ23) = 0.6, δcp =3π2
IH, sin2(θ23) = 0.4, δcp =π2
Section 4: Long Baseline Oscillation Experiments Problem 1
810 km
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Procedure • Plot the
• Identify the points in it that correspond to the question cases
• Include the error bars
• Project those points in each of the axis
• Look for separation of the peaks (is it better in the neutrino mode or on the antineutrino?)
P(νμ → νe) versus P(ν̄μ → ν̄e)
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Methodology • We are given: , for
• To find the signal count values for ...
• ,
• for and , for , for NH and IH
N0.5; ν or ν̄S or B 6 × 1020 POT
sin2(θ23) = 0.4 or 0.6
N0.4S = 6 × N0.5 ×
P(νμ → νe)0.4
P(νμ → νe)0.5
ν ν̄ δcp =π2
and3π2
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Results - General
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Case 1 and 3 Case 1 and 4 Results
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ResultsCase 2 and 3 Case 2 and 4
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Conclusion
Case 3 Case 4
Case 1 Mostly at neutrino Fully at neutrino
Case 2 Fully at antineutrino Fully at neutrino
Case 1- �
Case 3 - �
Case 2- �
Case 4- �
NH, sin2θ23 = 0.6, δcp = 3π /2
IH, sin2θ23 = 0.6, δcp = 3π /2
NH, sin2θ23 = 0.4, δcp = 3π /2
IH, sin2θ23 = 0.4, δcp = π /2
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Thank you
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Numerical Methodology
N0.4S, NH = α × N0.4, ν
S, NH + (1 − α) × N0.4, ν̄S, NH
N0.4S, IH = α × N0.4, ν
S, IH + (1 − α) × N0.4, ν̄S, IH
f(α) = N0.4S, NH−N0.4
S,IH
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Numerical calculations σ
σν or ν̄ =NS
NS + NB
1NS
+1
NS + NB
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Results 2 - Projections of the general plot
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If we compare the hierarchy in the same set of parameters…
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