<div dir="ltr">Hi Andrea, <div><br></div><div>Thanks for the email and the slides -- I will get back to you by the end of today and will also share my slides for the plenary with the group for some feedback (I am currently working on this). </div><div><br></div><div>Cheers,</div><div>Gordan</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Mar 16, 2017 at 11:53 AM, Andrea Celentano <span dir="ltr"><<a href="mailto:andrea.celentano@ge.infn.it" target="_blank">andrea.celentano@ge.infn.it</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
Dear Marco,<br>
thanks for your comments.<span class=""><br>
- some of the graphs and picture are out of date and should be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!). <br></span><span class="">
- 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<br>
<br></span>
Graphs updated with plots from proposal / PAC presentation. Detector
design updated.<span class=""><br>
<br>
- 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 <br>
<br></span>
R&D and LOI mentioned<span class=""><br>
<br>
- 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, ...)?<br>
<br></span>
This is what I asked for to our theoretician colleagues (Gordan,
Eder). My worry is that a "not-precise" or "not-correct" message
will be immediately rejected by the audience, where experts will be
present. In other words: what can we say about LSND / Miniboone? Is
it acceptable to say that the backgrounds are higher with a proton
beam (how much? why?). If we were comparing LHC vs LEP, clearly the
first has an higher bg (hadronic environment vs leptonic one), but
also an higher "production yield". <br>
Here, how should I introduce this message?<br>
For E137, situation is simpler. The message I'm going to insert in
slide n. 3 (still empty) is that E137 had less EOT, was not
optimized for LDM, and used a less sophisticated technology.<span class=""><br>
<br>
- at some point next week I'd send the slides to Bob , just to have
him informed about what is going on.<br>
<br></span>
Yes, Ideally if I receive other comments by tonight (that was my
deadline), I'll implement this tomorrow morning, circulate v2
tomorrow, and then we can try to sent to Bob tomorrow evening
(Europe time). Otherwise, on Monday.<span class=""><br>
<br>
<br>
- 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<br>
<br></span>
Ok, I can stress this more, but I think we need to not sell too much
the fact that the detector is already optimized and the whole
experiment design ready. The PAC asked us to optimize and finalize
the detector design - and "officially" we still need to show that we
did this, in order to move from current C2 rating to a C1 (with a
scientific rating that still we don't have). In other words: if the
message from the talk is too much oriented toward the idea that
there's nothing more to do in the design, someone in the audience
may ask why the PAC asked us to optimize the detector. <br><span class="HOEnZb"><font color="#888888">
<br>
Andrea</font></span><div><div class="h5"><br>
<br>
<div class="m_1526482736433523594moz-cite-prefix">On 03/16/2017 12:44 PM, Marco
Battaglieri wrote:<br>
</div>
<blockquote class="m_1526482736433523594cite" id="m_1526482736433523594mid_58CA7A86_4000302_ge_infn_it" type="cite">
<div class="m_1526482736433523594moz-cite-prefix">Dear Andrea,<br>
this is a good starting point for the BDX presentation at the
ws.<br>
General comments:<br>
- 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!). <br>
- 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<br>
- 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 <br>
- 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<br>
- a backup slide with costs/workplan will be useful (we'll
decide later if to be included in the presentation)<br>
- 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, ...)?<br>
- at some point next week I'd send the slides to Bob , just to
have him informed about what is going on.<br>
Here shttps://<a href="http://www.ge.infn.it/~batta/Celentano-3.pdf" target="_blank">www.ge.infn.it/~<wbr>batta/Celentano-3.pdf</a> some
detailed comments on the slides.<br>
Cheers<br>
Marco<br>
<br>
Andrea Celentano wrote:<br>
</div>
<blockquote class="m_1526482736433523594cite" id="m_1526482736433523594mid_3328_1489599830_v2FHhl9v048402_d9ce2a06_98f0_3bfe_4204_04ca3bfed5d6_ge_infn_it" type="cite">
Dear Colleagues,<br>
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'.<br>
<br>
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.<br>
<br>
Note that slides n. 5 is missing, as well as slide n. 29.
Conclusions still needs to be written properly.<br>
<br>
Other than your general comments, I'd like to hear the
following:<br>
<br>
* 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?<br>
<br>
* 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<br>
<br>
* 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?<br>
<br>
* 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.<br>
<br>
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.<br>
<br>
Bests,<br>
<br>
Andrea<br>
<br>
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