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

[Rafayel Paremuzyan]

Hi Tyler,

I agree, it should be complementary.
In their search they assumed the invisible decay: A'->χχ decay, so this exclusion, doesn't exclude existence of an A' with an epsilon within our range that decays visibly.

Rafo
________________________________
From: Tyler Hague <tjhague at lbl.gov>
Sent: Saturday, July 29, 2023 12:59 PM
To: Rafayel Paremuzyan <rafopar at jlab.org>
Cc: prad at jlab.org <prad at jlab.org>
Subject: [EXTERNAL] Re: [PRad] A new exclusion limit

Hi Rafo,

Thanks for sending this around. It looks like their exclusion limit fully contains our experiment. Our experiment should still be considered complementary though given that we are not using a missing mass method. It may be useful for us to consider putting more emphasis on our sensitivity to neutrals though, given this.

Best,
Tyler

On Fri, Jul 21, 2023 at 8:46 AM Rafayel Paremuzyan via PRad <prad at jlab.org<mailto:prad at jlab.org>> wrote:
Hello all,

here is the new paper (still in the Arxiv) that reports a huge new exclusion limit
https://arxiv.org/abs/2307.02404<https://urldefense.proofpoint.com/v2/url?u=https-3A__arxiv.org_abs_2307.02404&d=DwMFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=RRU0wYsm58ED2zDanQADbuRK_U7eVkqEBSro5m4kcEU&m=N6yqKdH2RafM6bZF9WASbyyfK2-wYrUNKd-LNTfUcPW-9IlBT3m9x1G8BoVioubG&s=9TaytDE0SKBhJBhCKPzqCvmzgi0joILsQxra3PmftRE&e=>

Rafo
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