# Search for KL →π0 nu nubar at KOTO experiment

- Institution: CERN
- Department: EP Seminar
- Speaker: Yu-Chen Tung
- Year: 2019
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3005797)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

J-PARC KOTO is a dedicated experiment for the search of the rare KL →π0νν

decay. This decay is known as the "golden mode" because of the its direct CP violating process and theoretical cleanness, which provide a clean base to explore new physics through finding deviations from the standard model.

Recently, the KOTO experiment released the results based on the data collected in 2015, which improves the upper limit of branching ratio by almost an order of magnitude over the previous result. In this talk, I will recap the results of 2015 data and talk about the plan on our way to the sensitivity of O(10-11).

.

0:00:00 Slide 1

0:01:20 Slide 2

0:01:55 Slide 3

0:02:59 Slide 4

0:03:54 Slide 5

0:06:42 Slide 6

0:08:16 Slide 7

0:09:55 Slide 8

0:10:57 Slide 9

0:12:13 Slide 10

0:13:14 Slide 11

0:13:46 Slide 12

0:14:46 Slide 13

0:15:54 Slide 14

0:16:43 Slide 15

0:17:43 Slide 16

0:19:31 Slide 17

0:20:52 Slide 18

0:21:27 Slide 19

0:23:18 Slide 20

0:25:01 Slide 21

0:28:32 Slide 22

0:29:50 Slide 23

0:31:35 Slide 24

0:32:41 Slide 25

0:33:36 Slide 26

0:35:46 Slide 27

0:36:28 Slide 28

0:38:09 Slide 29

0:39:08 Slide 30

0:40:51 Slide 31

0:43:02 Slide 32

0:44:02 Slide 33

0:45:01 Slide 34

0:46:12 Slide 35

0:48:14 Slide 36

0:49:07 Slide 37

0:49:11 Slide 38

0:49:15 Slide 39

0:49:19 Slide 40

0:49:23 Slide 41

0:50:20 Slide 42

0:50:25 Slide 43

0:50:29 Slide 44

0:50:33 Slide 45

0:50:37 Slide 46

0:50:41 Slide 47

0:50:45 Slide 48

0:51:21 Slide 49

0:53:05 Slide 50

0:53:37 Slide 51

0:56:00 Slide 52

0:56:56 Slide 53

0:57:10 Slide 54

0:57:14 Slide 55

## Lectures

1. [Search for KL →π0 nu nubar at KOTO experiment](https://invisiblenetwork.ai/learn/cern/3005797/ad17e915c674), 59 min (CERN's player)