Probing anomalous couplings using di-Higgs production in electron-proton collisions

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• 作者：Mukesh Kumarup>aup>up> ; up>up>mukesh.kumar@cern.chup> ; Xifeng Ruanup>bup>up> ; up>up>xifeng.ruan@cern.chup> ; Rashidul Islamup>cup>up> ; up>up>rashidul.islam@cern.chup> ; Alan S. Cornellup>aup>up> ; up>up>alan.cornell@wits.ac.zaup> ; Max Kleinup>dup>up> ; up>up>Max.Klein@liverpool.ac.ukup> ; Uta Kleinup>dup>up> ; up>up>Uta.Klein@liverpool.ac.ukup> ; Bruce Melladoup>bup>up> ; up>up>bruce.mellado.garcia@cern.chup>
• 关键词：Higgs boson ; Extensions of Higgs sector ; Particle production
• 刊名：Physics Letters B
• 出版年：2017
• 出版时间：10 January 2017
• 年：2017
• 卷：764
• 期：Complete
• 页码：247-253
• 全文大小：579 K
• 卷排序：764

文摘

A proposed high energy Future Circular Hadron-Electron Collider would provide sufficient energy in a clean environment to probe di-Higgs production. Using this channel we show that the azimuthal angle correlation between the missing transverse energy and the forward jet is a very good probe for the non-standard hhh   and hhWWhhWW couplings. We give the exclusion limits on these couplings as a function of integrated luminosity at a 95% C.L. using the fiducial cross sections. With appropriate error fitting methodology we find that the Higgs boson self coupling could be measured to be ghhh(1)=1.00−0.17(0.12)+0.24(0.14) of its expected Standard Model value at s=3.5(5.0) TeV for an ultimate 10 ab−110 ab−1 of integrated luminosity.