Gluon fusion contribution to VHj production at hadron colliders

We study the associated production of an electroweak vector boson and the Higgs boson with a jet via gluon–gluon fusion. At the leading order, these processes occur at one-loop level. The amplitudes of these one-loop processes are gauge invariant and finite. Therefore, their contributions towards th...

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Bibliographic Details
Published inPhysics letters. B Vol. 741; pp. 111 - 116
Main Authors Agrawal, Pankaj, Shivaji, Ambresh
Format Journal Article
LanguageEnglish
Published Elsevier B.V 04.02.2015
Elsevier
Subjects
Amplitudes
Channels
Cross sections
Gages
Gluon fusion
Higgs
Higgs bosons
Invariants
Large Hadron Collider
LHC
Mathematical analysis
Nuclear fusion
One-loop
One-loop
Higgs
LHC
Gluon fusion
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Summary:We study the associated production of an electroweak vector boson and the Higgs boson with a jet via gluon–gluon fusion. At the leading order, these processes occur at one-loop level. The amplitudes of these one-loop processes are gauge invariant and finite. Therefore, their contributions towards the corresponding hadronic cross sections and kinematic distributions can be calculated separately. We present results for the Large Hadron Collider and its discussed upgrades. We find that the gluon–gluon one-loop process gives dominant contribution to the γHj production. We observe a destructive interference effect in the gg→ZHj amplitude. We also find that in the high transverse momentum and central rapidity region, the ZHj production cross section via gluon–gluon fusion becomes comparable to the cross section contributions coming from quark–quark and quark–gluon channels.
Bibliography:ObjectType-Article-1
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content type line 23
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2014.12.021