Q: Does RECAST require access to data?

A: No. RECAST is a reassessment of the sensitivity of an existing analysis to an alternative signal. It only requires the ability to process an alternative signal through the analysis including all the cuts and final statistical inferences. The backgrounds and systematics were already estimated and the observed distributions have already published in the original analysis.

Q: Are existing analyses really sensitive to signals other than the ones they were designed to test?

A: Sometimes.  In the white paper we consider a few case studies, for instance the LEP Higgs compendium, which included analyses that recast existing searches into different final states (eg. the one by OPAL and by DELPHI).  Clearly, the existing analyses will not be optimal for the alternative signal, but by sacrificing optimality, one gains a tremendous amount in time saved and simplicity.

Q: But I don’t trust automated analyses.

A: RECAST does not involve new analyses, much less automate the production of new analyses.  Instead, RECAST reuses existing analyses produced in the traditional way.

Q: Where is the RECAST website?  How do I submit requests?

A: The beta version of the RECAST front-end is under-development now.  We hope to gather some comments from the community to help shape it in these early days.  In particular, if you have know of situations that an existing analysis could be recast for an alternative signal please mention it in the comments section.

Q: As an experimentalist, why would I want to get involved with RECAST?

A: The purpose of RECAST is to extend the impact of your search.  If you include your analysis in the RECAST listing, you may be able to exclude other models.  This will lead to more citations of your results and put you in contact with people interested in your analysis.  If your existing analysis was not sensitive to the alternative signal, maybe you will realize why and design a new analysis that is sensitive to a new class of models.  Hopefully RECAST will facilitate and expedite the normal process.

Q: I like the idea, what can I do to help?

A: The framework is in its very early stages of its development and there are many ways in which you can help. If you are a theorist, you can tell us about other searches you are familiar with and which you believe could impact an alternative signal if they could be recast.  If you are an experimentalist who is involved with an existing analysis, and you think it might be recast to test for an alternative scenario, please mention it.  If you are more technically inclined and would like to participate in the back-end for a particular collaboration (or the design and implementation of the front-end and API), please let us know.

One Response to FAQ

  1. Zarya says:

    At last, someone comes up with the “right” awsner!

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