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SUMMARY:Taming projection effects in EFT of LSS analysis of DESI
DTSTART:20250403T090000Z
DTEND:20250403T100000Z
DTSTAMP:20260518T191300Z
UID:indico-event-35426@indico.in2p3.fr
CONTACT:seminars@lapth.cnrs.fr
DESCRIPTION:Speakers: Marco Bonici (INAF-IASF Milano)\n\nThe analysis of g
 alaxy clustering measurements from surveys like Euclid or DESI is likely t
 o be affected by the so-called projection effects\, which causes the 1D ma
 rginals of the analysis to not contain the bestfit\; this is a serious iss
 ue which can potentially harm the cosmological interpretation of these ana
 lyses. In this talk I will present a few avenues to tackle this issue\, ei
 ther using simulation-calibrated priors\, a frequentist framework\, or a b
 ayesian reparametrization approach. All of these approaches can significan
 tly reduce the projection effects\, following different strategies.\nSpeci
 fically\, I will show the ongoing application of these methods to current 
 DESI DR1 data\, and will compare the results among them and with the basel
 ine DESI analysis.\n\nhttps://indico.in2p3.fr/event/35426/
LOCATION:Auditorium Vivargent (LAPTh)
URL:https://indico.in2p3.fr/event/35426/
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