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DTSTART:20250101T000000
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DTSTART;TZID=UTC:20250701T160000
DTEND;TZID=UTC:20250701T170000
DTSTAMP:20260415T015943
CREATED:20250626T213202Z
LAST-MODIFIED:20250626T213202Z
UID:2866-1751385600-1751389200@rpm.physics.lbl.gov
SUMMARY:Speaker: Marco Bonici (Waterloo) - Title: Taming projection effects in galaxy clustering analysis
DESCRIPTION:Research Progress Meeting \nDate: July 1\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Marco Bonici (Waterloo) \nTitle: Taming projection effects in galaxy clustering analysis \nAbstract: The analysis of galaxy clustering measurements from surveys like Euclid or DESI is likely to be affected by the so called projection effects\, which causes the 1D marginals of the analysis to not contain the bestfit; this is a serious issue which can potentially harm the cosmological interpretation of these analyses. I will outline three complementary strategies to mitigate this bias: (i) simulation-calibrated priors\, (ii) a frequentist framework based on profile likelihoods\, and (iii) a Bayesian re-parameterisation that isolates degenerate directions. Applied to full shape data\, each method reduces the impact of projection effects. I will present the reduction of the projection effects for each technique when applied to DESI data. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/95679892182?pwd=RU5xU2dDRFNabnR1U3pQMklkYWFIdz09 \nMeeting ID: 956 7989 2182 \nPasscode: 169037
URL:https://rpm.physics.lbl.gov/event/speaker-marco-bonici-waterloo-title-taming-projection-effects-in-galaxy-clustering-analysis/
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