PSD Mixer - ALD Presentation Now Available

Science Division Shared Account sciencediv at triumf.ca
Thu Jul 4 15:35:05 PDT 2019


Hello, PSD Member!

A reminder from Jens’ presentation – the Mixer Committee is looking for volunteers to assist with hosting a BBQ (an all-dietary-restrictions-inclusive one, where possible) for our next mixer on August 9th. If you are interested in participating, please send an email to sciencediv at triumf.ca<mailto:sciencediv at triumf.ca> by Friday, July 19th to let us know.

If we don’t hear from anyone, there will not be a BBQ ☹ so please speak up!

Thank you,

Allayne
for the Mixer Committee

Allayne McGowan
Administrative Assistant – Physical Sciences Division
t   604-222-7438
amcgowan at triumf.ca<mailto:amcgowan at triumf.ca>
sciencediv at triumf.ca<mailto:sciencediv at triumf.ca>

TRIUMF Canada’s particle accelerator centre
www.triumf.ca<http://www.triumf.ca> @TRIUMFLab

4004 Wesbrook Mall
Vancouver, BC  V6T 2A3

From: Science Division Shared Account
Sent: Wednesday, July 3, 2019 3:11 PM
To: postdocs at lists.triumf.ca; Gaps <gaps at triumf.ca>; grads at lists.triumf.ca
Subject: PSD Mixer - ALD Presentation Now Available

Hello, PSD Member!

For your info - the ALD Presentation from the mixer on June 28th is now available on DocuShare<https://documents.triumf.ca/docushare/dsweb/Get/Document-172425/Division%20Mixer_June_28_2019.pdf>.

Thanks!

Allayne McGowan
Administrative Assistant – Physical Sciences Division
t   604-222-7438
amcgowan at triumf.ca<mailto:amcgowan at triumf.ca>
sciencediv at triumf.ca<mailto:sciencediv at triumf.ca>

TRIUMF Canada’s particle accelerator centre
www.triumf.ca<http://www.triumf.ca> @TRIUMFLab

4004 Wesbrook Mall
Vancouver, BC  V6T 2A3

From: Science Division Shared Account
Sent: Friday, June 28, 2019 2:02 PM
To: postdocs at lists.triumf.ca<mailto:postdocs at lists.triumf.ca>; Gaps <gaps at triumf.ca<mailto:gaps at triumf.ca>>; grads at lists.triumf.ca<mailto:grads at lists.triumf.ca>
Subject: RE: PSD Mixer this Friday, June 28th!

Hello!

This is a reminder that the mixer starts at 2:30pm today!

See you there!

Allayne McGowan
Administrative Assistant – Physical Sciences Division
t   604-222-7438
amcgowan at triumf.ca<mailto:amcgowan at triumf.ca>
sciencediv at triumf.ca<mailto:sciencediv at triumf.ca>

TRIUMF Canada’s particle accelerator centre
www.triumf.ca<http://www.triumf.ca> @TRIUMFLab

4004 Wesbrook Mall
Vancouver, BC  V6T 2A3

From: Science Division Shared Account
Sent: Tuesday, June 25, 2019 2:15 PM
To: postdocs at lists.triumf.ca<mailto:postdocs at lists.triumf.ca>; Gaps <gaps at triumf.ca<mailto:gaps at triumf.ca>>; grads at lists.triumf.ca<mailto:grads at lists.triumf.ca>
Subject: PSD Mixer this Friday, June 28th!

Hello, PSD Member!

Please join us this coming Friday, June 28th, for the June PSD Mixer! It will take place in the Auditorium at 2:30pm.

This month’s agenda is as follows:


  *   Jens Dilling – Division Updates (15 minutes);
  *   Q&A with Jens (10 minutes);
  *   David McKeen – “The Mystery of the Disappearing Neutrons.” Abstract below (15-20 minutes);
  *   Discussion period w/ PIZZA!

Hope to see you there!

Allayne
for the Mixer Committee

------------------------------------------
“The Mystery of the Disappearing Neutrons”

Neutrons, along with protons, are what make up nuclei comprising all the matter that we see around us. However, if you pull a neutron outside of a nucleus it will decay with a half life of about 10 minutes. Studying how neutrons decay tells us about the weak nuclear force and is an important input into our understanding of how the sun and other stars shine, the formation of light elements in the early Universe, and the structure of the standard model of particle physics itself. Roughly speaking, there are two ways to measure how long a neutron lives: the “bottle” and “beam” methods. Strangely, these two techniques result in different values for the lifetime of a neutron which could be the sign of neutrons decaying to something we can’t see, such as dark matter. This would have deep implications for neutron stars, city-sized objects made up of about a Sun’s worth of neutrons. I’ll describe theories that can explain the difference in neutron lifetime measurements and how the existence of heavy neutron stars and other observational tests can rule them out. I will then mention a simple extension of these theories that can evade these constraints and how we might test that possibility.

Allayne McGowan
Administrative Assistant – Physical Sciences Division
t   604-222-7438
amcgowan at triumf.ca<mailto:amcgowan at triumf.ca>
sciencediv at triumf.ca<mailto:sciencediv at triumf.ca>

TRIUMF Canada’s particle accelerator centre
www.triumf.ca<http://www.triumf.ca> @TRIUMFLab

4004 Wesbrook Mall
Vancouver, BC  V6T 2A3

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