Different cuts to present Josh Albert Notable Points about 07a MC - PowerPoint PPT Presentation

Different cuts to present Josh Albert

Notable Points about 07a MC • The cut on outer detector hits has been changed from nhitac<10 to nhitac<16, this is to bring it in line with SK-III standards. • Changing the nhitac cut has virtually no effect on sensitivity • Mine-san made a new version of POLfit to reduce backgrounds with minimal loss of signal. • All sensitivity plots are for 90% one sided confidence level, ν e from solar oscillation is counted as background

Old POLfit exposure plots !"#$%&$'()*+$,-+.$+-.(/-0 !"#$%&$'()*+$,-+.$+-.(/-0 !"#$%&$'()*$+,-./$/01,203 !"#$%&$'()*$+,-./$/01,203 90% CL 750 kW beam vs. time 90% CL 10 7 s beam vs. power 9 @ ?:',-.*,=@$1++(+$A+*@,=(< "B$':'$9 ! '=0-0 $'-<'=,=/=,: $+05+()(2()A 9#B$':'$9 ! '=0-0 ! 9 9# 7#B$':'$9 ! '=0-0 ! @ @" 9> @B ! ! CA+)01.)(4$D//,/$E/.4)(,5 $7$ $<$ 7 < '=< +(5 ! 7 9# 5,$+A+$@ ! +(303 B"#$+A+$@ ! +(303 >"#$+A+$@ ! +(303 ! > ! < 9# @" ! 9 < 9# @" 9 @ @" 7 123('4+-56778"%,$2$9:-*+; 8,'0/$9:;6$'()*$9<<=>:)$?$@" $+04,53+6 10% systematic 5 yr limit: sin 2 2 θ 13 =0.0067 30% systematic 100kW limit: sin 2 2 θ 13 =0.063

Old POLfit sensitivity plots ,-.!/0! ,-.!/0! !"#$%&'&(&') !"#$%&'&(&') ,-.!/0! ,-.!/0! !"#$%&'&(&') !"#$%&'&(&') ! ! ! ! 90% CL 750 kW 5 years beam 90% CL 750 kW 5 years beam ! * *- *+ *+ *+ *+ 6 ")%'#57'&8!9::;:!<:78'&;$ ")%'#78'&2!9::;:!<:82'&;$ 5 =.!%)%!* ! %&>#> 5.!%)%!* ! %&=#= *-.!%)%!* ! %&>#> *-.!%)%!* ! %&=#= ! 1 *- 4 1-.!%)%!* ! %&>#> 1-.!%)%!* ! %&=#= 2 1 !3#4 23 *+ " + 1 !5 " ! + *- 1 * ! 6 - *- ! + ! + ! 1 ! * ! 1 ! * *- *- *- *- *- *- * * 1 1 %&$ !1! !%#$%&'&(&') %&$ !1! !%#$%&'&(&') ! ! *+ *+ 10% systematic 5 yr limit: sin 2 2 θ 13 =0.0067

New POLfit exposure plots !"#$%&$'()*+$,-+.$+-.(/-0 !"#$%&$'()*+$,-+.$+-.(/-0 !"#$%&$'()*$+,-./$/01,203 !"#$%&$'()*$+,-./$/01,203 90% CL 750 kW beam vs. time 90% CL 10 7 s beam vs. power 9 @ ?:',-.*,=@$1++(+$A+*@,=(< "B$':'$9 ! '=0-0 $'-<'=,=/=,: $+05+()(2()A 9#B$':'$9 ! '=0-0 ! 9 9# 7#B$':'$9 ! '=0-0 ! @ @" 9> @B ! ! CA+)01.)(4$D//,/$E/.4)(,5 $7$ $<$ 7 < '=< +(5 ! 7 9# 5,$+A+$@ ! +(303 B"#$+A+$@ ! +(303 >"#$+A+$@ ! +(303 ! > ! < 9# @" ! 9 < 9# @" 9 @ @" 7 123('4+-56778"%,$2$9:-*+; 8,'0/$9:;6$'()*$9<<=>:)$?$@" $+04,53+6 10% systematic 5 yr limit: sin 2 2 θ 13 =0.0062 30% systematic 100kW limit: sin 2 2 θ 13 =0.062

New POLfit sensitivity plots ,-.!/0! ,-.!/0! !"#$%&'&(&') !"#$%&'&(&') ,-.!/0! ,-.!/0! !"#$%&'&(&') !"#$%&'&(&') ! ! ! ! 90% CL 750 kW 5 years beam 90% CL 750 kW 5 years beam ! * *- *+ *+ *+ *+ 6 ")%'#57'&8!9::;:!<:78'&;$ ")%'#78'&2!9::;:!<:82'&;$ 5 =.!%)%!* ! %&>#> 5.!%)%!* ! %&=#= *-.!%)%!* ! %&>#> *-.!%)%!* ! %&=#= ! 1 *- 4 1-.!%)%!* ! %&>#> 1-.!%)%!* ! %&=#= 2 1 !3#4 23 *+ " + 1 !5 " ! + *- 1 * ! 6 - *- ! + ! + ! 1 ! * ! 1 ! * *- *- *- *- *- *- * * 1 1 %&$ !1! !%#$%&'&(&') %&$ !1! !%#$%&'&(&') ! ! *+ *+ 10% systematic 5 yr limit: sin 2 2 θ 13 =0.0062

Table of cuts with new POLfit New POLfit ν µ + ν µ Background ν e Signal total 11074.53 172% 349.6 161% 489.5 153% truefid 7182.3 111% 226.7 104% 316.2 99% recfid 6456.0 100% 217.8 100.0% 319.8 100% nhitac 5679.0 213.0 314.5 88.0% 97.8% 98.3% evis 3398.5 185.2 304.9 52.6% 85.0% 95.3% onering 1582.6 24.5% 102.4 47.0% 266.4 83.3% elike 212.4 3.29% 99.42 45.65% 262.0 81.93% nomuedcy 161.4 2.50% 84.10 38.62% 242.6 75.86% cosine 98.93 42.95 212.9 1.53% 19.72% 66.55% pi0mass 28.24 32.43 199.4 0.44% 14.89% 62.34% pi0like 21.70 0.34% 30.79 14.14% 194.0 60.64% recnuE 10.14 0.16% 15.63 7.18% 149.1 46.61% *Histograms showing each cut can be found in the backup slides

K2K-style cuts. • remove cosine cut • remove pi0 likelihood cut • make pi0mass cut p dependant: • pi0mass increases linearly from 50 to 100 for momentum between 0 and 300 MeV. • For p>300 MeV, the cut is simply pi0mass<100.

K2K-style cut on signal POLfit π 0 mass vs. momentum 0 0 mass vs p mass vs p ! ! 300 mass (MeV) 10 10 250 Cut 0 ! 200 1 1 150 100 Keep 10 10 50 0 0 200 400 600 800 1000 1200 p (MeV)

K2K-style cut on background POLfit π 0 mass vs. momentum 0 0 mass vs p mass vs p ! ! 300 mass (MeV) 2 2 10 10 250 Cut 0 ! 200 10 10 150 100 1 1 Keep 50 0 0 200 400 600 800 1000 1200 p (MeV)

K2K style exposure plots !"#$%&$'()*+$,-+.$+-.(/-0 !"#$%&$'()*+$,-+.$+-.(/-0 !"#$%&$'()*$+,-./$/01,203 !"#$%&$'()*$+,-./$/01,203 90% CL 750 kW beam vs. time 90% CL 10 7 s beam vs. power 9 @ ?:',-.*,=@$1++(+$A+*@,=(< "B$':'$9 ! '=0-0 $'-<'=,=/=,: $+05+()(2()A 9#B$':'$9 ! '=0-0 ! 9 9# 7#B$':'$9 ! '=0-0 ! @ @" 9> @B ! ! CA+)01.)(4$D//,/$E/.4)(,5 $7$ $<$ 7 < '=< +(5 ! 7 9# 5,$+A+$@ ! +(303 B"#$+A+$@ ! +(303 >"#$+A+$@ ! +(303 ! > ! < 9# @" ! 9 < 9# @" 9 @ @" 7 123('4+-56778"%,$2$9:-*+; 8,'0/$9:;6$'()*$9<<=>:)$?$@" $+04,53+6 10% systematic 5 yr limit: sin 2 2 θ 13 =0.0061 30% systematic 100kW limit: sin 2 2 θ 13 =0.058

K2K style sensitivity plots ,-.!/0! ,-.!/0! !"#$%&'&(&') !"#$%&'&(&') ,-.!/0! ,-.!/0! !"#$%&'&(&') !"#$%&'&(&') ! ! ! ! 90% CL 750 kW 5 years beam 90% CL 750 kW 5 years beam ! * *- *+ *+ *+ *+ 6 ")%'#57'&8!9::;:!<:78'&;$ ")%'#78'&2!9::;:!<:82'&;$ 5 =.!%)%!* ! %&>#> 5.!%)%!* ! %&=#= *-.!%)%!* ! %&>#> *-.!%)%!* ! %&=#= ! 1 *- 4 1-.!%)%!* ! %&>#> 1-.!%)%!* ! %&=#= 2 1 !3#4 23 *+ " + 1 !5 " ! + *- 1 * ! 6 - *- ! + ! + ! 1 ! * ! 1 ! * *- *- *- *- *- *- * * 1 1 %&$ !1! !%#$%&'&(&') %&$ !1! !%#$%&'&(&') ! ! *+ *+ 10% systematic 5 yr limit: sin 2 2 θ 13 =0.0060

Comparison of all Cut setups Std Cuts (Old POLfit) Std Cuts (New POLfit) K2K Style Background Signal Background Signal Background Signal 154% 155% 154% 155% 154% 155% 11424.2 489.5 11424.2 489.5 11424.2 489.5 total 100% 100% 100% 100% 100% 100% 7409.0 316.2 7409.0 316.2 7409.0 316.2 truefid 6673.8 90% 319.8 101.2% 6673.8 90% 319.8 101.2% 6673.8 90% 319.8 101.2% recfid 79.5% 99.5% 79.5% 99.5% 79.5% 99.5% 5892.0 314.5 5892.0 314.5 5892.0 314.5 nhitac 48.4% 96.4% 48.4% 96.4% 48.4% 96.4% 3583.7 304.9 3583.7 304.9 3583.7 304.9 evis 22.7% 84.3% 22.7% 84.3% 22.7% 84.3% 1685.0 266.4 1685.0 266.4 1685 266.4 onering 311.8 4.21% 262.0 82.9% 311.8 4.21% 262.0 82.9% 311.8 4.21% 262.0 82.9% elike 3.31% 76.7% 3.31% 76.7% 3.31% 76.7% 245.5 242.6 245.5 242.6 245.5 242.6 nomuedcy 1.92% 67.3% 1.92% 67.3% --- --- 141.9 212.9 141.9 212.9 --- --- cosine 1.10% 63.1% 0.82% 60.6% 1.19% 67.6% 81.3 199.4 60.7 191.6 88.1 213.6 pi0mass 71.4 0.96% 194.0 61.3% 52.5 0.71% 185.9 58.8% --- --- --- --- pi0like 0.45% 47.2% 0.35% 45.2% 0.48% 51.6% 33.2 149.1 25.8 142.8 35.4 163.2 recnuE S 25.86 28.14 27.41 √ B sin 2 2 θ 13 limit for 0.0067/ 0.0062/ 0.0061/ 5 yrs 10 7 s 750kW 100kW 0.063 0.062 0.058 10% sys 30% sys • All differences are in the last 4 rows. • The new POLfit improves the ratio noticeably. S √ B

Backup slides • Comparision of old polfit with nhitac<10 vs. nhitac<16 • Sensitivity slides in order for easy flipping • Comparison tables of all cut values • Variation on 2-D cut histograms • Standard cut definitions and parameters • New POLfit cut histograms