<p>IRanian Conference on High Energy Physics (IRCHEP 1400) will be held online during 8-10 November, 2021. The event is organized by the IPM node of the HIDDeN network as a HIDDeN workshop.</p>
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<p>The conference gathers experts in high energy physics and cosmology.</p>
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<p>For more information please visit the conference webpage: </p>
<p><a href="http://physics.ipm.ac.ir/conferences/irchep/" target="_blank">http://physics.ipm.ac.ir/conferences/irchep/</a></p>
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<p>You are welcome to register at:</p>
<p><a href="http://physics.ipm.ac.ir/conferences/irchep/register/index.jsp" target="_blank">http://physics.ipm.ac.ir/conferences/irchep/register/index.jsp</a></p>
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<p>The deadline for registration is October 24th, 2021. </p>
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<p>Due to the COVID-19 pandemic, IRCHEP 1400 will be held online. The registration is free.</p>
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<p>With best regards,</p>
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<p>On behalf of the organizers,</p>
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