A NALYSIS OVERVIEW & “T HE M ISSING P HYSICS ” V. Blackmore CM38 23rd February /14

Purpose of this talk... You will hear about Our (physics) readiness for carrying out Step IV Our (physics) preparations for Step V or Step VI This talk is what you will not hear about. If there’s something that is mentioned in none of these talks, then it truly is “missing physics” Everyone is encouraged to think about their favourite physics topic and what we are (or are not) doing to satisfy that. 2/14

A full and definitive exploration of the ionisation cooling equation + Proof that we can predict it + Proof that we can measure it Depends on material Depends on magnetic latticeDepends on upstream beam line (mostly diffuser) Depends on particle species  backgrounds! Multiple scattering Ionisation Cooling Measure a change in emittance Analysis at Step IV 3/14

“Sounds simple enough...” Depends on material Depends on magnetic latticeDepends on upstream beam line (mostly diffuser) Depends on particle species  backgrounds! Multiple scattering Ionisation Cooling Measure a change in emittance Analysis at Step IV 4/14 famous last words!

Step IV Operating States SS1SS2FC CKOVs EMR TOF0TOF1TOF2KL Diffuser Tracker planesAbsorber 7.5—8m Fields, LH2Fields, solid absorber LiH wedge LiH Plastic, Al,... No fields, LH2No fields, solid absorber No/empty absorberWith absorber No fields Fields (Flip/Solenoid mode) No fields, no absorber Fields, no absorber Noble Goal: Always have a Monte Carlo before taking data! 5/14 Presented as part of the “analysis wishlist” discussion on Sunday

No fields, no absorberNo fields, LH2No fields, solid absorber PID and straight track reconstruction Detector alignmentMultiple scattering: high-Z Multiple scattering: low-Z Background study NB: Each consists of many sub-analyses. indicates “influences” 6/14 Presented as part of the “analysis wishlist” discussion on Sunday

No fields, no absorberFields, no absorberNo fields, LH2No fields, solid absorber PID and straight track reconstruction Detector alignmentMultiple scattering: high-Z Full track reconstruction & PIDCharacterise lattice Multiple scattering: low-Z Background study indicates “influences” 7/14 NB: Each consists of many sub-analyses. Presented as part of the “analysis wishlist” discussion on Sunday

Heating term No fields, no absorberFields, no absorberFields, LH2Fields, solid absorberNo fields, LH2No fields, solid absorber PID and straight track reconstruction Detector alignmentMultiple scattering: high-Z Full track reconstruction & PIDCharacterise lattice Multiple scattering: low-Z Background study Multiple scattering: low-Z Background study Repeat for each type of absorber: liquid, disc or wedge 8/14 Presented as part of the “analysis wishlist” discussion on Sunday

Heating term No fields, no absorberFields, no absorberFields, LH2Fields, solid absorberNo fields, LH2No fields, solid absorber PID and straight track reconstruction Detector alignmentMultiple scattering: high-Z Full track reconstruction & PIDCharacterise lattice Multiple scattering: low-Z Background study Multiple scattering: low-Z Background study Cooling term 9/14 Presented as part of the “analysis wishlist” discussion on Sunday Repeat for each type of absorber: liquid, disc or wedge

Heating term No fields, no absorberFields, no absorberFields, LH2Fields, solid absorberNo fields, LH2No fields, solid absorber PID and straight track reconstruction Detector alignmentMultiple scattering: high-Z Full track reconstruction & PIDCharacterise lattice Equilibrium emittance & ionisation cooling Multiple scattering: low-Z Background study Multiple scattering: low-Z Background study Cooling term 10/14 Presented as part of the “analysis wishlist” discussion on Sunday Repeat for each type of absorber: liquid, disc or wedge

Full track reconstruction & PID Detector alignment PID and straight track reconstruction Heating term No fields, no absorberFields, no absorberFields, LH2Fields, solid absorberNo fields, LH2No fields, solid absorber Multiple scattering: high-Z Characterise lattice Equilibrium emittance & ionisation cooling Multiple scattering: low-Z Background study Multiple scattering: low-Z Background study Cooling term What you won’t hear about today... 11/14 + All of the calibrations/configuration/systematic analyses that make these possible!

Heating term No fields, no absorberFields, no absorberFields, LH2Fields, solid absorberNo fields, LH2No fields, solid absorber PID and straight track reconstruction Detector alignmentMultiple scattering: high-Z Full track reconstruction & PIDCharacterise lattice Equilibrium emittance & ionisation cooling Multiple scattering: low-Z Background study Multiple scattering: low-Z Background study Cooling term Progress (MC only): “Circle of Glory” “Circle of Gloom” “Circle of Hope” The proportion of green is a “guesstimate” + all of this influences Step V, Step VI... 12/14 Presented as part of the “analysis wishlist” discussion on Sunday

Thank you to Asfandiyarov, Blondel, Carlisle, Cobb, Dobbs, Drielsma, Hanlet, Kaplan, Lagrange, Leonova, Long, Middleton, Nugent, Orestano, Overton, Pasternak, Pidcott, Popovic, Rajaram, Rogers, Santos, Soler, Snopok, Speirs, Taylor, Uchida who have balanced physics analyses with their other responsibilities and provided us with support. Summary 13/14 Photograph’s from “The Secret Life of Harvest Mice”, taken by Jean-Louis Klein and Marie-Luce Hubert

Summary 14/14 Photograph’s from “The Secret Life of Harvest Mice”, taken by Jean-Louis Klein and Marie-Luce Hubert Analysis meetings are full of discussion There’s a bit of physics for everybody Everyone is welcome to do physics, no which mouse you are With everyone’s support, we’ll get to our goals As seen by a common harvest mouse