[Astro] [CAPT] Particle Cosmology and Gravity Seminar this week: Fiona McCarthy

[Elisa Todarello (staff)]

Dear All,

                  We have a seminar this week. The details are provided below.

Kind regards,
Elisa
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Speaker: Fiona McCarthy (Cambridge)

Seminar date: October 21st , Tuesday, 1 pm UK time

Venue: Seminar Room A 113 (Cripps North Building, CAPT)


Title: Fundamental and beyond-standard-model physics from CMB-electron scattering


Abstract:  As the CMB travels through the Universe, it interacts with large-scale structure, including with the inhomogeneous electron gas that surrounds galaxies. The Compton-scattering of the CMB off these electrons leads to the Sunyaev--Zel'dovich effect. This induces new CMB anisotropies, which carry information about the distribution of electrons, and gives us access to a new cosmological probe: their large-scale velocity. We can access this information with state-of-the-art high-resolution CMB surveys such as ACT and SO. I will talk about how the SZ effect in combination with a galaxy survey will constrain fundamental and beyond-standard-model physics, focusing on probes of inflation.  I will also talk about more exotic CMB-electron interactions and recent constraints on beyond-standard-model particle physics, focusing on dark photon-CMB and axion-CMB interactions.


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Link to join:

 https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d


List of upcoming Seminars:

Oct 28th: Jack Shergold (Liverpool)
Nov 4th: Usama Aqeel (Nottingham)
Nov 18th: Benjamin Muntz (Nottingham)
Nov 25th: Fraser Cowie (Oxford)
Dec 2nd: Violetta Sagun (Southampton)
Dec 9th: James Alvey (Cambridge)

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