[Hps] [EXTERNAL] Re: [PRad] A new exclusion limit

[Andrea Celentano]

Hi all,
I am one of the authors of this paper: as Tim says, this is related to the Dark Sector scenario in which the A’ decays invisibly to LDM; this model is different from the one searched for by HPS, and thus the results from NA64 do not introduce any new constraint on HPS parameters space.

Bests,
Andrea

> On Jul 23, 2023, at 06:30, Nelson, Timothy Knight via Hps <hps at jlab.org> wrote:
> 
> Hi Stepan,
> 
> Perhaps the wrong link was sent?  This paper is a missing energy search for dark matter (a la LDMX), not visibly decaying dark photons - it cannot exclude anything in the visible search parameter space.  (Any visible decay will be vetoed in this search.)
> 
> Tim
> 
>> On Jul 21, 2023, at 11:30 AM, Stepan Stepanyan via Hps <hps at jlab.org> wrote:
>> 
>> The new results from NA64 cuts very close to our overtaxing region!
>> 
>> Stepan 
>> 
>>> Begin forwarded message:
>>> 
>>> From: Rafayel Paremuzyan via PRad <prad at jlab.org>
>>> Subject: [PRad] A new exclusion limit
>>> Date: July 21, 2023 at 11:46:29 AM EDT
>>> To: "prad at jlab.org" <prad at jlab.org>
>>> Reply-To: Rafayel Paremuzyan <rafopar at jlab.org>
>>> 
>>> Hello all,
>>> 
>>> here is the new paper (still in the Arxiv) that reports a huge new exclusion limit
>>> https://urldefense.proofpoint.com/v2/url?u=https-3A__arxiv.org_abs_2307.02404&d=DwIFAg&c=CJqEzB1piLOyyvZjb8YUQw&r=ErLkbYGWd8oSAZ70ywHxhA&m=9RKBthU7PPqHGurhmXjW8nIul8HkuUV9TjCqFfxelYt0Ecz5fF-x4YJ7zUXeJepO&s=slZj9qYPT8Sgy2hkNLSvp4dUxg4LbJrb6IhAlrmGDzA&e= 
>>> 
>>> Rafo
>>> _______________________________________________
>>> PRad mailing list
>>> PRad at jlab.org
>>> https://mailman.jlab.org/mailman/listinfo/prad
>> 
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