Higgs Hunters Talk
I see 2. Nice!
Very nice one! And a good example of how our computers missed an important track!
Nope, artifacts of the computer finding other vertices. You can ignore them.
It's the middle of the picture, where the two green lines meet. There are also extra little vertices along the center line...
Yes, correct.
Colors are the computers' attempt to group the tracks together by vertex...
Yes! Thanks.
You can ignore those.
Nice find!
Good question!
The ellipses are computer-found vertices. You can mainly ignore them.
Very clean! The computer even found that one. 😃
Several close vertices...
Each image will get tried at least 10 times. 😃 I see ~3 vertices in there!
Cool one! I'm sure we'll be taking a closer look at that one...
Yeah, I would say that's an interesting 2-track vertex!
Hmmm. Hard to find a clear pattern. And there's no single place where several tracks cross..
Right! And another nearby with 3 tracks..
The ellipses are computer-found vertices. You can ignore them.
Those all look like random crossings to me. When unclear, I wouldn't mark any of the 2-track vertex possibilities...
Yes, could be multiple displaced vertices in there at different radii...
Some very busy events have an increased rate of fake tracks... Unless they make some pattern they are likely junk...
A computer-found vertex. You can ignore it.
Those ellipses are computer-found vertices. It clearly did a bad job with that one. 😃
A vertex found by the computer, but whose tracks have failed further criteria - ignore it...
Right! The size of the oval is proportional to the uncertainty the computer algorithm assigns to where the vertex should be. It had no idea!
You should mark it again if you agree with it!
May have been from a previous user finding it.
don't miss the 5-track gal at 10 o'clock! 😃
Actually, this look like mostly junk, other than a 2-track vertex at ~1 o'clock...
Definitely 2 vertices there. The computer has found them and colored some tracks, but missed some too!
You can ignore those computer-found vertices. There were pink tracks on that vertex, but we have suppressed them so it's easier for you...
There's a nice one with 5 tracks at 12 o'clock too!
Tricky one in the slice view... the white ones are there, but are below the detector center!
Yup - good one!
Another user will be presented with the zoom in view randomly...
Yup, a lot going on there. Ones this close in can often by caused by the decay of bottom quarks though - but rare!
Muons are heavier cousins of the electron.
Having a muon coming from a displaced vertex is interesting!
I really like this one! By the way, the green tracks that are matched to the thick red lines in the outermost blue detector are muons...
It's very close to the center, but definitely off-center. Thanks!
Good one. The fact that it's white means our computer algorithms missed it!
Make sure to mark the white one with 3 lines on the upper left! Thanks for helping!
Yup - nice event!
The single white lines are usually "fakes" - tracks found by random alignments of hits in the detector. I like the 2 vertices though!
Could be a b-jet though - it's pretty close in and looks "low mass" and fairly low secondary multiplicity...
Nice! Yes, but likely a Stan.Mod. decay of a neutral particle like a Kaon to two tracks. The low Kaon mass makes the tracks close together.
Yes, I would agree!
I see 2. Nice!
Very nice one! And a good example of how our computers missed an important track!
Nope, artifacts of the computer finding other vertices. You can ignore them.
It's the middle of the picture, where the two green lines meet. There are also extra little vertices along the center line...
Yes, correct.
Colors are the computers' attempt to group the tracks together by vertex...
Yes! Thanks.
You can ignore those.
Nice find!
Good question!
The ellipses are computer-found vertices. You can mainly ignore them.
Very clean!
The computer even found that one. 😃
Several close vertices...
Each image will get tried at least 10 times. 😃
I see ~3 vertices in there!
Cool one! I'm sure we'll be taking a closer look at that one...
Yeah, I would say that's an interesting 2-track vertex!
Hmmm. Hard to find a clear pattern. And there's no single place where several tracks cross..
Right! And another nearby with 3 tracks..
The ellipses are computer-found vertices. You can ignore them.
Those all look like random crossings to me. When unclear, I wouldn't mark any of the 2-track vertex possibilities...
Yes, could be multiple displaced vertices in there at different radii...
Some very busy events have an increased rate of fake tracks... Unless they make some pattern they are likely junk...
A computer-found vertex. You can ignore it.
Those ellipses are computer-found vertices. It clearly did a bad job with that one. 😃
A vertex found by the computer, but whose tracks have failed further criteria - ignore it...
Right! The size of the oval is proportional to the uncertainty the computer algorithm assigns to where the vertex should be. It had no idea!
You should mark it again if you agree with it!
May have been from a previous user finding it.
don't miss the 5-track gal at 10 o'clock! 😃
Actually, this look like mostly junk, other than a 2-track vertex at ~1 o'clock...
Definitely 2 vertices there. The computer has found them and colored some tracks, but missed some too!
You can ignore those computer-found vertices.
There were pink tracks on that vertex, but we have suppressed them so it's easier for you...
There's a nice one with 5 tracks at 12 o'clock too!
Tricky one in the slice view... the white ones are there, but are below the detector center!
Yup - good one!
Another user will be presented with the zoom in view randomly...
Yup, a lot going on there.
Ones this close in can often by caused by the decay of bottom quarks though - but rare!
Muons are heavier cousins of the electron.
Having a muon coming from a displaced vertex is interesting!
I really like this one! By the way, the green tracks that are matched to the thick red lines in the outermost blue detector are muons...
It's very close to the center, but definitely off-center. Thanks!
Good one. The fact that it's white means our computer algorithms missed it!
Make sure to mark the white one with 3 lines on the upper left! Thanks for helping!
Yup - nice event!
The single white lines are usually "fakes" - tracks found by random alignments of hits in the detector. I like the 2 vertices though!
Could be a b-jet though - it's pretty close in and looks "low mass" and fairly low secondary multiplicity...
Nice! Yes, but likely a Stan.Mod. decay of a neutral particle like a Kaon to two tracks. The low Kaon mass makes the tracks close together.
Yes, I would agree!