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<div class="moz-cite-prefix">I think Victor calculated a sharp
threshold without considering the resonances have broad widths for
hybrids. <br>
<br>
I suggest the following, i.e. W thresholds are above 3 GeV in
either case. <br>
<br>
7.5 GeV: E'min>2.0 GeV<br>
6.5 GeV: E'min>2.0 GeV<br>
<br>
For the upper E' I suggest to lower the numbers so that resonance
width are taken into account.<br>
7.5GeV: E'max< 7.0 GeV <br>
6.5GeV: E'max < 6.0 GeV <br>
<br>
Thresholds may have to be adjusted for energy leakage. <br>
<br>
Volker<br>
<br>
<br>
<br>
On 11/9/18 11:16 AM, Valery Kubarovsky wrote:<br>
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<div>Hi All:</div>
<div><br data-mce-bogus="1">
</div>
<div>The scattered electron energy in the mail below differs by
a factor of 4 from the table that was presented today (see
attached screenshot). I believe that we have to define the
trigger parameters more precisely.</div>
<div><br data-mce-bogus="1">
</div>
<div>Regards,</div>
<div>Valery</div>
<div><br data-mce-bogus="1">
</div>
<div><br>
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<blockquote style="border-left:2px solid
#1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"
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font-style: normal; text-decoration: none; font-family:
Helvetica,Arial,sans-serif; font-size: 12pt;"><b>From: </b>"Viktor
Mokeev" <a class="moz-txt-link-rfc2396E" href="mailto:mokeev@jlab.org"><mokeev@jlab.org></a><br>
<b>To: </b>"clas12 rgk" <a class="moz-txt-link-rfc2396E" href="mailto:clas12_rgk@jlab.org"><clas12_rgk@jlab.org></a><br>
<b>Cc: </b>"Volker Burkert" <a class="moz-txt-link-rfc2396E" href="mailto:burkert@jlab.org"><burkert@jlab.org></a>,
"annalisa dangelo" <a class="moz-txt-link-rfc2396E" href="mailto:annalisa.dangelo@roma2.infn.it"><annalisa.dangelo@roma2.infn.it></a>,
"Valery Kubarovsky" <a class="moz-txt-link-rfc2396E" href="mailto:vpk@jlab.org"><vpk@jlab.org></a><br>
<b>Sent: </b>Friday, November 9, 2018 10:22:06 AM<br>
<b>Subject: </b>Range of the scattered electron energies<br>
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#1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"
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font-style: normal; text-decoration: none; font-family:
Helvetica,Arial,sans-serif; font-size: 12pt;"> Dear
Colleagues,<br>
<br>
I computed the range of the scattered electron energies for
Q^2=0 and at the W interval from 1.5 GeV (W_min) to 2.5 GeV
(W_max), which is the range of our physics interest.<br>
<br>
For the beam energy of 7.5 GeV the energy range of the
scattered electrons should be from 4.64 GeV to 6.78 GeV.<br>
For the beam energy of 6.4 GeV the energy range of the
scattered electrons should be from 3.54 GeV to 5.67 GeV.<br>
<br>
The details of the evaluations are in the attached file.<br>
<br>
Best Regards,<br>
Victor<br>
<br>
PS For Q^2>0.1 GeV^2 the actual value of Q^2 becomes
comparable with the \nu in the attached file and, therefore,
should be taken into account. In comparison with the photon
point, actual Q^2 value should increase \nu and decrease the
range of the scattered electron energies.<br>
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