1997/04/30 by William H. Kinney, Edward W. Kolb, Michael S. Turner · 29 citations
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Anisotropy #Approx #Astrophysics #Baryon #COSMIC cancer database #Cosmic background radiation #Cosmic microwave background #Cosmology and Gravitation Theories #Distortion (music) #Geomagnetism and Paleomagnetism Studies #Optics #Particle physics #Physics #Scientific Research and Discoveries #Sky #Universe #astro-ph #hep-ph
paper · pdf · doi:10.1103/physrevlett.79.2620
published in Physical Review Letters 79(14), 2620-2623 (American Physical Society) · LaTeX, 10 pages, 4 figures in epsf. Revised version corrects a couple of relevant mistakes
arxiv created 1997/05/02 · openalex publication_date 1997/10/06 · openalex created_date 2016/06/24 · arxiv updated 2016/08/24 · openalex updated_date 2026/08/05
If the Universe consists of domains of matter and antimatter, annihilations at domain interfaces leave a distinctive imprint on the cosmic background radiation (CBR) sky. The signature is anisotropies in the form of long, thin ribbons of width \ensuremathθW\ensuremath∼0.1^\ensuremath∘, separated by angle \ensuremathθL\ensuremath≃1^\ensuremath∘(L/100h^\ensuremath-1\phantom\rule0ex0exMpc) ( L is the characteristic domain size) and with distortion parameter y\ensuremath≈10^\ensuremath-6. Such a pattern could potentially be detected by the high-resolution CBR anisotropy experiments planned for the next decade, and such experiments may finally settle the question of whether or not our Hubble volume is baryon symmetric.