About the INPA Seminars

All seminars are on Fridays (unless otherwise noted) and start at 12:00 (noon) with a brief presentation of the weekly scientific news. Typically the talks end by 13:00. The seminars take place in Bldg. 50A, room 5132.

The committee members are:

The following Seminar schedule for the Institute for Nuclear and Particle Astrophysics is tentative. The seminar becomes final usually a few days before the Friday of the talk.

If you have questions, comments, suggestions or like to be added to the INPA News mailing list please contact: Erica Hall 510-486-4903

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Speaker: Daniel Carney (LBL)-TITLE: Proposal for a Levitated Invisible Particle Sensor

March 3 @ 12:00 pm - 1:00 pm

This is an In-Person [HYBRID] Event

LOCATION: Sessler Conference Room – 50A – 5132

DATE: March 3, 2023

TIME: 12:00 PM

TITLE: Proposal for a Levitated Invisible Particle Sensor

ABSTRACT: Recently Dave Moore (Yale), Kyle Leach (Mines) and I proposed the use of a levitated mechanical quantum sensor combined with a pixelated electron/photon detector to look for invisible particles, particularly heavy sterile neutrinos in the keV-MeV range. The basic device consists of ~100nm scale silica spheres implanted with radioisotopes. When the isotope decays, via beta or electron capture, it will generically eject e-/gammas as well as a neutrino which escape the nanosphere, while the daughter atom is trapped in the sphere and causes it to recoil. With measurement precision on the sphere recoil at the “standard quantum limit”–which we have already achieved in a similar device at Yale–one can kinematically reconstruct the emitted neutrino momentum. I’ll outline how this works, compare it to previous AMO-y approaches (e.g. HUNTER), and talk about what we’d like to do at LBL.


Join Zoom Meeting:  https://lbnl.zoom.us/j/95016696011?pwd=Tk1XOW1Xd3RYRnlsc2tEYmRWZlVVZz09

Meeting ID: 950 1669 6011
Passcode: 247722


March 3
12:00 pm - 1:00 pm

INPA guests from campus can now come up to the lab early on Fridays. The INPA Common Room (50-5026) is reserved for our guests from 10:00 am to 12:00 noon, and from 1 pm to 5 pm. Note that the seminars are now held in 50A-5132 to accommodate a larger number of attendees.

Also, on Fridays from 1:00 pm to 2:00 pm you are welcome to join the INPA Speaker for a brown-bag lunch in the small Pers Hall conference room, 54-130B.

INPA Tea Series

The Physics and Nuclear Science Divisions have together been leaders in revolutionary changes in our understanding of neutrinos and cosmology. Everyone is welcome to attend the open forum. Tea and light refreshments will be served.

INPA Common Room (50-5026)
3:30 pm

Access to the Lab

For a shuttle pass please email Erica Hall. Please note: the pass is only valid for the day of the seminar.

If you have questions, comments, or suggestions please contact, preferably via email, Erica Hall.