<?xml version="1.0" encoding="UTF-8"?>
<xml>
  <records>
    <record>
       <contributors>
          <authors>
             <author>Udongwo, S.</author>
             <author>Calaga, R.</author>
             <author>Zadeh, S.G.</author>
             <author>van Rienen, U.</author>
          </authors>
       </contributors>
       <titles>
          <title>
             HOM Coupler Design and Optimization for the FCC-ee W Working Point
          </title>
       </titles>
       <publisher>JACoW Publishing</publisher>
       <pub-location>Geneva, Switzerland</pub-location>
		 <isbn>2673-5490</isbn>
		 <isbn>978-3-95450-227-1</isbn>
		 <electronic-resource-num>10.18429/JACoW-IPAC2022-TUPOTK015</electronic-resource-num>
		 <language>English</language>
		 <pages>1230-1233</pages>
       <keywords>
       </keywords>
       <work-type>Contribution to a conference proceedings</work-type>
       <dates>
          <year>2022</year>
          <pub-dates>
             <date>2022-07</date>
          </pub-dates>
       </dates>
       <urls>
          <related-urls>
              <url>https://doi.org/10.18429/JACoW-IPAC2022-TUPOTK015</url>
              <url>https://jacow.org/ipac2022/papers/tupotk015.pdf</url>
          </related-urls>
       </urls>
       <abstract>
          The Future Circular electron-positron Collider (FCC-ee) is planned to operate with beam energies from 45.6 to 182.5 GeV and beam currents from 5.4 to 1390 mA. The purpose is to study the properties of the Z-, W- and Higgs boson and the top and anti-top quarks in four operation points. The beam current of 147 mA of the W working point requires particular care to string damp HOMs. This paper proposes 2-cell 400 MHz SRF cavities with improved damping as an alternative to the baseline 4-cell cavities for this working point. The resulting impedance of the HOM-damped cavity is then calculated and compared with the impedance budget.
       </abstract>
    </record>
  </records>
</xml>
