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talks.cam : Cosmology and Unification


Monday 08 March 2021, 16:00-
17:00
If you have a question about this talk, please contact Sunny Vagnozzi.
I will review how future measurements of primordial Non-Gaussianities in the CMB , Large Scale Structure and 21-cm cosmology can probe very heavy particle physics at inflationary energy scales. Intuitively, the production of heavy particles is due to the “Hawking temperature” of inflationary spacetime, and their measurement is via their decay into inflatons. Even greater mass reach is shown to be possible via “chemical potential” enhancement. These mechanisms are applied to plausible targets, namely our most ambitious gauge-Higgs and extra-dimensional theories, such as Orbifold Grand Unification, “dark” sectors, and the Standard Model itself, with particles as exotic as spin-2 Kaluza Klein gravitons. I show how the Hierarchy “Problem” of the Standard Model becomes an asset in this context, readily allowing its particles to have the requisite Hubbl ....

Kaluza Klein , Raman Sundrum University Of Maryland , Large Scale Structure , Orbifold Grand Unification , Standard Model , Cosmology Lunch , University Of Cambridge , பெரியது அளவு அமைப்பு , தரநிலை மாதிரி , அண்டவியல் மதிய உணவு , பல்கலைக்கழகம் ஆஃப் கேம்பிரிட்ஜ் ,

Big Data to model the evolution of the cosmic web


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IMAGE: Reconstruction of the cosmic web (shaded areas in grey in the left panel) based on a distribution of galaxies (in red in the left panel) and the primordial fluctuations (right.
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Credit: Francisco-Shu Kitaura (IAC).
The Instituto de Astrofísica de Canarias (IAC) has led an international team which has developed an algorithm called COSMIC BIRTH to analyse large scale cosmic structures. This new computation method will permit the analysis of the evolution of the structure of dark matter from the early universe until the formation of present day galaxies. This work was recently published in the journal ....

Olivier Le , Ramony Cajal , Francisco Shu Kitaura , Excelencia Severo Ochoa , Cosmic Evolution , Monthly Notices Of The Royal Astronomical Society , University Of La Laguna , Kavli Institute For Physics , Instituto De Astrof , Monthly Notices , Royal Astronomical Society , Large Scale Structure , Big Data , Metin Ata , Kavli Institute , Cosmic Evolution Survey , Efficient Bayesian Inference , Evolving Cosmic Web , Galaxy Surveys , Space Planetary Science , ஆலிவர் லெ , பிரான்சிஸ்கோ ஷு கிட்ட Aura ரா , எக்ஷ்செலெஞ்சிய சேவேரோ ஆசோவ , அண்ட பரிணாமம் , மாதாந்திர அறிவிப்புகள் ஆஃப் தி அரச வானியல் சமூகம் , பல்கலைக்கழகம் ஆஃப் லா லகுனா ,