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# Video Library

Since 2002 Perimeter Institute has been recording seminars, conference talks, and public outreach events using video cameras installed in our lecture theatres.  Perimeter now has 7 formal presentation spaces for its many scientific conferences, seminars, workshops and educational outreach activities, all with advanced audio-visual technical capabilities.  Recordings of events in these areas are all available On-Demand from this Video Library and on Perimeter Institute Recorded Seminar Archive (PIRSA)PIRSA is a permanent, free, searchable, and citable archive of recorded seminars from relevant bodies in physics. This resource has been partially modelled after Cornell University's arXiv.org.

## WIMPless Dark Matter and Meson Decays with Missing Energy

Mardi avr 20, 2010
Speaker(s):

WIMPless dark matter offers an attractive framework in which dark matter can be very light. We investigate the implications of such scenarios on invisible decays of bottomonium states for dark matter with a mass less than around $5 {\rm GeV}$. We relate these decays to measurements of nucleon-dark matter elastic scattering. We also investigate the effect that a coupling to $s$ quarks has on flavor changing $b\to s$ processes involving missing energy.

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Scientific Areas:

## Generation of Perturbations During Inflation

Mardi avr 20, 2010
Speaker(s):

Lecture 4

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## Quantum Spin Simulations (PHYS 7380) - Lecture 12

Mardi avr 20, 2010

## Explorations in Theoretical Astrophysics (PHYS 7890) - Lecture 12

Mardi avr 20, 2010
Speaker(s):

Gauge Invariant Cosmological Perturbation theory from 3+1 formulation of General Relativity. This course will aim to study in detail the 3+1 decomposition in General Relativity and use the formalism to derive Gauge invariant perturbation theory at the linear order. Some applications will be studied.

## Baryogenesis and Leptogenesis

Lundi avr 19, 2010
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## Quantum Spin Simulations - Lecture 11

Lundi avr 19, 2010

## Explorations in Theoretical Astrophysics (PHYS 7890) - Lecture 11

Lundi avr 19, 2010
Speaker(s):

Gauge Invariant Cosmological Perturbation theory from 3+1 formulation of General Relativity. This course will aim to study in detail the 3+1 decomposition in General Relativity and use the formalism to derive Gauge invariant perturbation theory at the linear order. Some applications will be studied.

## Quantum Spin Simulations (PHYS 7380) - Lecture 10

Vendredi avr 16, 2010

## Explorations in Theoretical Astrophysics (PHYS 7890) - Lecture 10

Vendredi avr 16, 2010
Speaker(s):

Gauge Invariant Cosmological Perturbation theory from 3+1 formulation of General Relativity. This course will aim to study in detail the 3+1 decomposition in General Relativity and use the formalism to derive Gauge invariant perturbation theory at the linear order. Some applications will be studied.

## Cosmological Perturbation Theory

Jeudi avr 15, 2010
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## Next Public Lecture

Check back for details on the next lecture in Perimeter's Public Lectures Series

## RECENT PUBLIC LECTURE

### Molly Shoichet: Engineering Change in Medicine

Speaker: Molly Shoichet