Explaining the Discrepancy of W+2jets Signals at Tevatron

In summary, in 2011, the CDF experiment reported a signal excess for W+2jets in the mass range of Mjj ~ 150 GeV, while the D0 experiment did not observe this anomaly with the same criteria. There is currently no explanation for this discrepancy, but the CDF has published an update with more data and different modeling, finding the data to be consistent with the standard model.
  • #1
Safinaz
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Hi all,

In 2011 CDF experiment at Tevatron announced that they had reported W+2jets signal excess for 2 jets
mass range around Mjj ~ 150 GeV but D0 experiment didn't see this signal anomaly using the same criteria.

So have anyone an idea or recent reference how this discrepancy had explained ? or did the LHC exp.
gave any other results about this W+2jets excess ..

Bests,
Safinaz
 
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No problem :smile:
 

1. What is the discrepancy of W+2jets signals at the Tevatron?

The discrepancy of W+2jets signals at the Tevatron refers to the difference between the expected number of events predicted by theoretical calculations and the actual number of observed events in experiments.

2. What could be causing this discrepancy?

There are several potential sources of the W+2jets signals discrepancy at the Tevatron, including miscalculations in theoretical models, experimental errors, and unexpected background events.

3. How is the discrepancy being investigated?

The discrepancy is being investigated through a combination of theoretical calculations, experimental data analysis, and comparisons with other collider experiments. Researchers are also exploring new physics models that could explain the discrepancy.

4. What implications could this discrepancy have on our understanding of particle physics?

If the discrepancy is confirmed to be a result of new physics beyond the Standard Model, it could have significant implications for our understanding of particle physics and the fundamental building blocks of the universe. It could also lead to the discovery of new particles and interactions.

5. Are there any potential solutions to the discrepancy?

There are several proposed solutions to the W+2jets signals discrepancy, including adjustments to theoretical models, improvements in experimental techniques, and the inclusion of new physics models. Further research and analysis are needed to determine the most likely solution.

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