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The LiteBIRD mission to explore cosmic inflation

Abstract: LiteBIRD, the next-generation cosmic microwave background (CMB) experiment, aims for a launch in Japan's fiscal year 2032, marking a major advancement in the exploration of primordial cosmology and fundamental physics. Orbiting the Sun-Earth Lagrangian point L2, this JAXA-led strategic L-class mission will conduct a comprehensive mapping of the CMB polarization across the entire sky. During its 3-year mission, LiteBIRD will employ three telescopes within 15 unique frequency bands (ranging from 34 through 448 GHz), targeting a sensitivity of 2.2 ?K-arcmin and a resolution of 0.5° at 100 GHz. Its primary goal is to measure the tensor-toscalar ratio r with an uncertainty ?r = 0.001, including systematic errors and margin. If r ? 0.01, LiteBIRD expects to achieve a > 5? detection in the ? = 2-10 and ? = 11-200 ranges separately, providing crucial insight into the early Universe. We describe LiteBIRD?s scientific objectives, the application of systems engineering to mission requirements, the anticipated scientific impact, and the operations and scanning strategies vital to minimizing systematic effects. We will also highlight LiteBIRD's synergies with concurrent CMB projects.

Other conference communications or articles related to authors from the University of Cantabria

 Publisher: SPIE Society of Photo-Optical Instrumentation Engineers

 Year of publication: 2024

 No. of pages: 23

 Publication type: Conference object

 DOI: 10.1117/12.3021377

 ISSN: 0277-786X,1996-756X

 Spanish project: PID2019-110610RB-C21

 Publication Url: https://doi.org/10.1117/12.3021377

Authorship

GHIGNA, T.

ADLER, A.

AIZAWA, K.

AKAMATSU, H.

ELENA DE LA HOZ LOPEZ-COLLADO

CHRISTIAN GIMENO AMO

GUILLERMO PASCUAL CISNEROS

MATHIEU REMAZEILLES

MIGUEL RUIZ GRANDA