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A student forwarded this to me:
http://arxiv.org/abs/1104.0699
This isn't my field- can someone help walk me through it? For example, to start:
"The CDF collaboration at the Fermilab Tevatron collider recently measured the cross section for the production of either an additional W or a Z boson in association to a W (WW or WZ diboson production) from a lepton plus jets final state described in Ref. [3]. One of the two methods described in that work uses the invariant mass of the two-jet system (Mjj) to extract a WW + WZ signal from data. Here we perform a statistical comparison of that spectrum with expectations by including additional data and further studying the Mjj distribution for masses higher than 100 GeV/c2, with minimal changes to the event selection with respect to the previous analysis. We find a statistically significant disagreement with current theoretical predictions."
What process is being probed by looking for a WW/WZ event? What is a 'jet' final state? What is the relevant difference between lepton+jet and two-jet decay modes?
The popular press is all gaga (and useless). TIA.
http://arxiv.org/abs/1104.0699
This isn't my field- can someone help walk me through it? For example, to start:
"The CDF collaboration at the Fermilab Tevatron collider recently measured the cross section for the production of either an additional W or a Z boson in association to a W (WW or WZ diboson production) from a lepton plus jets final state described in Ref. [3]. One of the two methods described in that work uses the invariant mass of the two-jet system (Mjj) to extract a WW + WZ signal from data. Here we perform a statistical comparison of that spectrum with expectations by including additional data and further studying the Mjj distribution for masses higher than 100 GeV/c2, with minimal changes to the event selection with respect to the previous analysis. We find a statistically significant disagreement with current theoretical predictions."
What process is being probed by looking for a WW/WZ event? What is a 'jet' final state? What is the relevant difference between lepton+jet and two-jet decay modes?
The popular press is all gaga (and useless). TIA.