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dc.contributor.author Idilbi, A
dc.contributor.author Kim, C
dc.contributor.author Mehen, T
dc.date.accessioned 2011-06-21T17:27:48Z
dc.date.issued 2010-10-26
dc.identifier.citation Physical Review D - Particles, Fields, Gravitation and Cosmology, 2010, 82 (7)
dc.identifier.issn 1550-7998
dc.identifier.uri http://hdl.handle.net/10161/4280
dc.description.abstract Heavy colored scalar particles, which exist in many models of new physics, can be pair produced at the LHC via gluon-gluon fusion and possibly form quarkoniumlike bound states. If the scalars are also charged under the electroweak gauge group, these bound states can then decay into electroweak bosons. This yields a resonant cross section for final states such as γγ that can exceed standard model backgrounds. This paper studies this process in the Manohar-Wise model of color-octet scalars (COS). Important threshold logarithms and final state Coulomb-like QCD interactions are resummed using effective field theory. We compute the resummed cross section for gluon-gluon fusion to COS pairs at the LHC as well as the resonant cross section for octetonium decaying to γγ. The latter cross section exceeds the standard model diphoton cross section when the COS mass is less than 500 (350) GeV for √s=14(7)TeV. Nonobservation of resonances below these energies can significantly improve existing bounds on COS masses. © 2010 The American Physical Society.
dc.language.iso en_US en_US
dc.relation.ispartof Physical Review D - Particles, Fields, Gravitation and Cosmology
dc.relation.isversionof 10.1103/PhysRevD.82.075017
dc.title Pair production of color-octet scalars at the LHC
dc.title.alternative en_US
dc.type Journal Article
dc.description.version Version of Record en_US
duke.date.pubdate 2010-10-26 en_US
duke.description.endpage 75017 en_US
duke.description.issue 7 en_US
duke.description.startpage 75017 en_US
duke.description.volume 82 en_US
dc.relation.journal Physical Review D en_US
pubs.issue 7
pubs.organisational-group /Duke
pubs.organisational-group /Duke/Trinity College of Arts & Sciences
pubs.organisational-group /Duke/Trinity College of Arts & Sciences/Physics
pubs.publication-status Published
pubs.volume 82
dc.identifier.eissn 1550-2368

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