[BDXlist] BDX talk at US Cosmic Visions: New Ideas in Dark Matter workshop

[Marco Battaglieri]

Dear Andrea,
this is a good starting point for the BDX presentation at the ws.
General comments:
-  some of the graphs and picture  are out of date and should be 
updated: I'd suggest to keep the detector design consistent with what 
described in the proposal (we have an arxiv public paper on it too!).
- Some messages need to be conveyed more clearly (eg the bdx reach, the 
difference with previous beam-dump experiments, the advantages for the 
whole LDMA-like activity in assessing the background of a high intense 
electron beam experiment) in the spirit of considering BDX as one of the 
forst experiment deserving to be funded
- You may also want to mention that the R&D of this experiment started 4 
years ago (we presented a LOI at PAC42 starting to work on it well 
before!)  and now we are ready to assemble the real experiment
- I'd show how the signal will look like in the detector (including 
efficiency, crystal multiplicity, ... ) to give the feeling that the 
detector option is adequate to detect the Chi
- a backup slide with costs/workplan will be useful (we'll decide later 
if to be included in the presentation)
- do we want to address (another backup slides ) the possible BDX 
competitors (experiments such as LSND E137) and report the recent 
results of miniboone showing that we can do much better (in termn of 
EOT, background, ...)?
- at some point next week I'd send the slides to Bob , just to have him 
informed about what is going on.
Here  shttps://www.ge.infn.it/~batta/Celentano-3.pdf some detailed 
comments on the slides.
Cheers
Marco

Andrea Celentano wrote:
> Dear Colleagues,
> you find attached a first draft of the slides I'm going to show at the 
> DOE workshop next week. The talk is 30' + 5'.
>
> Slides are not in the final form - but already in a quite definite 
> shape, so that I can circulate them to you to receive feedback and 
> comments.
>
> Note that slides n. 5 is missing, as well as slide n. 29. Conclusions 
> still needs to be written properly.
>
> Other than your general comments, I'd like to hear the following:
>
> * Eder, Gordan: my idea about slide n.5 was to present BDX as a 
> "second generation" dump experiment, dedicated to LDM, after the 
> experiences from E137 and others. Also, I'd like to compare with 
> proton beam-dump experiments (LSND, Miniboone), underlying the 
> complementary (protons: maybe higher production, but higher 
> beam-related backgrounds. Electrons: beam-related backgrounds are 
> lower). Do you think this is reasonable?
>
> * Eder, Gordan: can you please have a look at the reach plot (slide 
> n.24)? These were taken from proposal, but I do not know if any MAJOR 
> change in limits from other experiments should be added
>
> * Marco, Elton: slides n. 28 and 29 shows the current experiment 
> status and future plans. In slide n. 29 I can show that a realistic 
> cost estimate for facilities (and partially for the detector) has been 
> carried out. What's your opinion about? Is it worth to discuss or it 
> is better to put in the backup?
>
> * All: do you think it is better to circulate the slides to people at 
> JLab? At the moment, in particular for the mu pipe test, I am just 
> saying that the plans have been "discussed" with the management. If we 
> want to stress this more (like saying that the plans have been 
> pre-approved, or something like this) then we need to.
>
> I expect to receive your feedback within Friday morning (Europe time), 
> so that I can work on this on Friday, circulate again on Friday 
> evening (Europe time), and if necessary circulate to people at JLab.
>
> Bests,
>
> Andrea
>
> I've linked 1 file to this email:
> CelentanoBDXDOE.pdf 
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>
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