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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VIRTUAL INPA SEMINAR | María Martínez (Universidad de Zaragoza)

July 2, 2021 @ 12:00 pm - 1:00 pm

Speaker: María Martínez ​(​Universidad de Zaragoza​)​

Location: via Zoom

Title: Annual ​M​odulation ​R​esults ​F​rom ​Three​ ​–​Y​ear ​E​xposure of ANAIS-112

Abstract:

For more than 20 years, the DAMA/LIBRA experiment at the Gran Sasso Underground Laboratory (Italy) has claimed a positive dark matter detection: an annual modulation in the low-energy detection rate compatible with the expected signal induced by dark matter particles due to the Earth rotation around the Sun. This signal is in strong tension with the negative results of other very sensitive experiments. However, until recently a direct comparison using the same target material (NaI(Tl)) was lacking. ANAIS (annual modulation with NaI Scintillators) is a dark matter direct detection experiment located at the Canfranc Underground 
 
Laboratory (LSC, Spain). Its main goal is to test in a model independent way the DAMA/LIBRA positive result. ANAIS-112 operates 112.5 kg of NaI(Tl) scintillators at the LSC since August 2017 and is taking data smoothly with excellent performances. Results from the first three years are compatible with the absence of modulation and incompatible with the DAMA/LIBRA measured modulation at more than 2.5 sigma C.L.

In this seminar I will briefly review the DAMA/LIBRA puzzle and the status of the experiments trying to reproduce it. Then I will introduce the ANAIS-112 experimental set-up, the detector performance and analysis methods. Finally, I will present the results of the annual modulation analysis corresponding to three years of ANAIS data, the physical implications and the prospects for the 5 years of scheduled operation time.
Join Zoom Meeting​
​https://lbnl.zoom.us/j/95105088780
Meeting ID: 951 0508 8780

Details

Date:
July 2, 2021
Time:
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)
Fridays
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.