Institute for Nuclear and Particle Astrophysics (INPA) at LBNL
The INPA Seminar weekly talks are on Fridays, starting at 12:00 pm, unless informed otherwise. The seminar talk starts with a brief presentation of the weekly scientific news. Typically, the talks conclude by 1:00 pm. The seminars are held in the Sessler Conference Room, located in Bldg. 50A- 5132.
The committee members are:
The seminar schedule for the Institute for Nuclear and Particle Astrophysics (INPA) is tentative and becomes final a few days before the Friday talk.
Please send all suggestions for future INPA talks and speakers to the INPA Committee.
To be added to the INPA News Mailing List, please contact Erica Hall.
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Speaker: Elisabeth Krause (U of Arizona) Title: A Parameter-Masked Mock Data Challenge for Beyond-Two-Point Galaxy Clustering Statistics
April 12 @ 12:00 pm - 1:00 pm
INPA SEMINAR TALK
Date: Friday, April 12, 2024
Time: 12:00 PM – 1:00 PM
Location: Sessler Conference Room–50A-5132 [Hybrid and In-Person]
Speaker: Elisabeth Krause (U of Arizona)
Title: A Parameter-Masked Mock Data Challenge for Beyond-Two-Point Galaxy Clustering Statistics
Abstract: The last few years has seen the emergence of a vast array of novel techniques for the analysis of high precision data from upcoming galaxy surveys, which are primarily motivated by the notion that any optimal analysis of galaxy clustering data should extend beyond the canonical two-point (2pt) statistics. We test and benchmark some of these new techniques
in a community data challenge “Beyond-2pt’’. The challenge dataset consists of high-precision mock galaxy catalogs for clustering in real-space, redshift-space, and on a light cone. Participants in the challenge have developed end-to-end pipelines to analyze mock catalogs and extract unknown (“masked”) cosmological parameters of the underlying LCDM models with their methods. The methods represented are density-split clustering, nearest neighbor statistics, BACCO power spectrum emulator, void statistics, field-level effective field theory (EFT), and joint power spectrum and bispectrum analyses using both EFT and simulation-based inference.
I will review the results of the challenge, focusing on problems solved, lessons learned, and future research needed to perfect the emerging beyond-2pt approaches.
Join Zoom
https://lbnl.zoom.us/j/95016696011?pwd=Tk1XOW1Xd3RYRnlsc2tEYmRWZlVVZz09
Meeting ID: 950 1669 6011
Passcode: 247722
INPA guests from campus can now come to the lab early on Fridays. The INPA Common Room (50-5026) is reserved for our guests from 10:00 a.m. to 12:00 noon and from 1 p.m. to 5 p.m. Note that the seminars are now held in 50A-5132 to accommodate a more significant number of attendees.
CPTea Series (also known as INPA Tea Series)
The Physics Division CPTea Series invites you to an In-Person Tea Series 1st Friday of every month at 3:30 pm INPA Conference Room 50-5026.
Everyone is welcome to attend the open forum. Tea and light refreshments will be served.
INPA Common Room (50-5026)
Fridays
3:30 pm
Access to the Lab
For a shuttle pass, please email Erica Hall. The pass is only valid for the day of the seminar.