INPA SEMINAR TALK

Date: July 19th

Time: 12:00 pm – 1:00 pm

Location: Sessler Conference Room – 50A-5132 [Hybrid and In-Person]

Speaker:  Kenny Vetter (UC Berkeley)

Title: Quieting the Chaos in the Cold: Noise Cancellation Algorithms in CUORE’s Search for 0νββ Decay

Abstract: Neutrinos have puzzled physicists for decades despite significant strides in understanding them over the past thirty years, with many questions about their masses still remaining. The fact that neutrinos are indeed massive has shown that the Standard Model of particle physics, while wildly successful, is incomplete. This has motivated searches for Beyond Standard Model processes that may fundamentally change our understanding of nature. Among these potential processes is neutrinoless double beta decay $(0\nu\beta\beta)$, a theorized lepton number violating process. Experimental evidence of $0\nu\beta\beta$ decay would conclusively show that neutrinos are Majorana fermions. The Cryogenic Underground Observatory for Rare Events (CUORE) experiment is an ongoing search for $0\nu\beta\beta$ decay in $^{130}$Te. This talk will showcase the improvement in the CUORE data quality with a novel noise cancellation algorithm and detail the application of this algorithm to CUORE’s latest dataset with 2039 kg·yr of TeO$_2$ exposure. I will also report the results from CUORE’s search for $0\nu\beta\beta$ decay using this dataset. We find no evidence for $0\nu\beta\beta$ decay, and we place a lower limit on the half-life of $T_{1/2}^{0\nu} > 3.8 \times 10^{25}$ yr. Finally, I will discuss future searches for $0\nu\beta\beta$ decay beyond CUORE and how they will profit from future noise decorrelation algorithms.

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

Meeting ID: 950 1669 6011

Passcode: 247722