Difference between revisions of "UMICH-2015: Inflation"

Latest revision as of 13:33, 2 November 2015

Session Organizers:

Coordinators: Lloyd Knox
Moderators:
- break-out session 1: Jo Dunkley
- break-out session 2: Raphael Flauger
- break-out session 3: Sarah Shandera

Action Items (from end of Michigan meeting)

Start writing (making a strong case for r)
Study prospects for r and nt for various configurations and values of r (Fisher matrix forecasts including foregrounds that will feed into more detailed simulations)
Study possibility to establish departure from scale invariance even for extended parameters space for both S3 and S4
Quantify improvements on other inflationary observables (running, non-Gaussianity, etc. while varying neutrino mass/Neff)
Given the improvements on fNL, are there interesting models that CMB S4 could see hints for (e.g. modulated reheating)
Quantify dependence of error bars on lmin
Think about science drivers that would affect design of experiment (e.g. absolute calibration of polarization angles)

Some questions we may want to address / items for discussion:

It would probably be useful to have a review of the assumptions made for the Snowmass forecasting.
What are key aspects of that forecasting that should be improved?
What theoretical model spaces should we consider for forecasting? That is, what parameters that are nuisances from an inflation standpoint, should we include?
The Snowmass document is pretty thin in terms of specific forecasts for constraints on non-Gaussianity. What should we add?
How will progress on non-Gaussianity constraints compare to what will be happening with galaxy surveys? How are they complementary?
How will CMB-S4 lensing in particular help with non-Gaussianity studies from LSS surveys?
Would CMB-S4 help at all with curvature, given DESI BAO? Maybe by helping to distinguish between neutrino mass and/or variation from w = -1?

@@ Line 7: / Line 7: @@
 ** break-out session 3: Sarah Shandera
-Action Items: updated list, with names (November 2, 2015)
-* Start writing (making a strong case for r): RF and SS will get started right away.
-* Study prospects for r and nt for various configurations and values of r (Fisher matrix forecasts including foregrounds that will feed into more detailed simulations) -- RF
-* Study possibility to establish departure from scale invariance even for extended parameters space for both S3 and S4 -- RF
-* Quantify improvements on other inflationary observables (running, non-Gaussianity, etc. while varying neutrino mass/Neff) -- RF
-* Given the improvements on fNL, are there interesting models that CMB S4 could see hints for (e.g. modulated reheating):  Joel Meyers
-* Quantify dependence of error bars on lmin [RF: will add some plots and words to wiki]
-* Think about science drivers that would affect design of experiment (e.g. absolute calibration of polarization angles) -- ?
-* Isocurvature forecasts -- no obvious targets, but there should be some quantification. How to parameterize? -- Julien Lesgourgues
 Action Items (from end of Michigan meeting)