Higgs Hunters Talk

A Circle

  • starhunter11 by starhunter11

    What is the pink circle in the upper left quadrant of this image?


  • ElisabethB by ElisabethB moderator

    Hi starhunter11 and welcome to HiggsHunters

    The pink circle is an artifact, no need to mark it. See the field guide : toughies

    Happy hunting ! 😄


  • starhunter11 by starhunter11 in response to ElisabethB's comment.

    Thanks, and happy hunting to you also.


  • andy.haas by andy.haas scientist

    Yeah, it is a remnant from a vertex found by the computer, but whose tracks have since all failed further quality criteria. So it is likely a "fake" or a known particle decay.