DiphotonX 2015 Update on Plans and Progress Bruce

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Diphoton+X 2015: Update on Plans and Progress Bruce Schumm SCIPP On Behalf of the

Diphoton+X 2015: Update on Plans and Progress Bruce Schumm SCIPP On Behalf of the Photon+X Working Group La Plata, LPNHE Paris, Milano, Tokyo Tech, UCSC 15 July 2015

Overall View • Different groups (diphoton, photon+jets, photon+l) continue to work together effectively •

Overall View • Different groups (diphoton, photon+jets, photon+l) continue to work together effectively • Updates since Walk. Through largely infrastructurerelated; not much visible progress • Diphoton: Initial Data/MC comparsions, optimization focus points, 2012 data studies for new QCD model • Photon+jets: Grid preparation July 15 2015 2

Diphoton Tasks Overview From Walkthrough KEY: DONE UNDERWAY • Code/Infrastructure • x. AOD •

Diphoton Tasks Overview From Walkthrough KEY: DONE UNDERWAY • Code/Infrastructure • x. AOD • Derivations • Higher-level infrastructure (Ryan’s package) • Events variables (MET with photons, etc. ) • Event selection • Preliminary studies • Optimization July 15 2015 UPCOMING • Backgrounds • QCD • Electroweak • Irreducible • Models • SM samples • Strong & EW grids • Full vs. fast sim 3

Focus Points for Diphoton Analysis As before, optimize separately for low/high bino mass for

Focus Points for Diphoton Analysis As before, optimize separately for low/high bino mass for both strong (gluino) and EW (wino) production Assume same a*e (about 12%) and expected #events limits (3 events for strong and 5 events for weak production) Assume 1. 5 fb-1 luminosity at 13 Te. V è Mass of focus point is that giving cross section of 3 events = (1. 5 fb-1) * ( gluino) * (0. 12) gluino = 17 fb 5 events = (1. 5 fb-1) * ( wino) * (0. 12) è Mgluino = 1500 Ge. V wino = 28 fb Mwino = 600 Ge. V (Mgluion, Mbino) = (1500, 100), (1500, 1300); (Mwino, Mbino) = (600, 100), (600, 500) Generation completed, Exot 10 derivation requested July 15 2015 4

Re-Evaluation of Δφ Cuts For Run I, we made cuts on the minimum values

Re-Evaluation of Δφ Cuts For Run I, we made cuts on the minimum values of Δφ( -MET) and Δφ(jet-MET) These cuts were one-sided, and rejected events if Δφ < 0. 5 Since mismeasurement of the (pseudo)-photon or jet might go in either direction, perhaps we can gain further advantage by cutting around as well We are looking into this with the 2012 data July 15 2015 5

2012 Δφ(jet-MET) MET > 60 • 2 -sided cut likely warranted • Need to

2012 Δφ(jet-MET) MET > 60 • 2 -sided cut likely warranted • Need to form min variables (one and two sided); compare to signal MC • Need to do same type of study for ( -MET), for both real and pseudophotons July 15 2015 6

QCD Background Estimate Old approach: • “Data” in above plot is pseudophoton control sample

QCD Background Estimate Old approach: • “Data” in above plot is pseudophoton control sample • is from MC • Use MET shape of pseudophoton sample, after subtracting off contribution, to estimate QCD background July 15 2015 7

Monophoton Pseudophoton Def’n 12. 03. 2021 8

Monophoton Pseudophoton Def’n 12. 03. 2021 8

New (Monophoton) Approach (? ) Isolation Energy Can we use same approach as monophoton

New (Monophoton) Approach (? ) Isolation Energy Can we use same approach as monophoton analysis? pp t = tight p = pseudo Question might be that of statistics, since we operate in the Nback 0 limit pt+tp >> tt Good, but what happens when HT, MET cuts applied? July 15 2015 tp tt none pt 9

Wrap Up July 15 2015 10

Wrap Up July 15 2015 10

Wrap UP July 15 2015 11

Wrap UP July 15 2015 11