New LHC Results 2015: Interesting Diphoton Excess?

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SUMMARY

The forum discussion centers on the latest results from the Large Hadron Collider (LHC) regarding the diphoton excess initially observed in 2015. The CMS collaboration has reported no significant findings in the mass range of the previous bump, which was noted at 750 GeV, and has removed certain photon events from their analysis. The ATLAS collaboration is expected to release their results shortly, but preliminary indications suggest they will mirror CMS's findings. The significance of the original bump was 3.9 sigma for ATLAS and 2.6 sigma for CMS, but the lack of an increase in significance with new data casts doubt on the bump's validity, suggesting it was likely a statistical anomaly.

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  • Understanding of particle physics and the Standard Model
  • Familiarity with statistical significance in experimental physics
  • Knowledge of the LHC's operational parameters and data collection methods
  • Experience with analyzing particle collision data, particularly in relation to diphoton events
NEXT STEPS
  • Research the implications of statistical anomalies in particle physics experiments
  • Learn about the methodologies used in CMS and ATLAS analyses of diphoton events
  • Investigate the significance of the Higgs boson mass and its implications for new physics
  • Explore the latest updates on LHC data collection and future experiments planned for 2025 and beyond
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Particle physicists, researchers in experimental physics, and students studying high-energy physics will benefit from this discussion, particularly those interested in the implications of the LHC's findings on theoretical models and future research directions.

  • #31
mfb said:
. We should get new results in the near future, the latest at Moriond
I think the aim is at Moriond (not before)?
 
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  • #32
Didn't see announcements for anything before that, but that doesn't mean there is no chance things get presented earlier.
 
  • #33
Is there other physics run next year?
 
  • #34
arivero said:
Is there other physics run next year?
Yes... LHC will undergo some short shutdown for half the 2017 and then continue taking data.almost for the whole time till the end of 2018 when LS2 is scheduled. I think before LS2 the plan is to reach above 100/fb of data.
 

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