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$WWZ/gamma$ production in large extra dimensions model at LHC and ILC | | Li Xiao-Zhou
; Duan Peng-Fei
; Ma Wen-Gan
; Zhang Ren-You
; Guo Lei
; | | Date: |
28 Sep 2012 | | Abstract: | We investigate the effect induced by the Kaluza-Klein (KK) graviton in the
$W^+W^-gamma/Z$ production in the framework of the large extra dimensions
(LED) model at both the CERN Large Hadron Collider (LHC) and the International
Linear Collider (ILC). The integrated cross sections and various kinematic
distributions in the LED model are presented and compared with those in the
standard model. The results show that the contributions from KK-graviton
exchange remarkably affect the observables of the triple gauge boson
($W^+W^-gamma/Z$) production processes at both the ILC and the LHC,
particularly either in the high transverse momentum region or in the central
rapidity region. We also find that the relative LED discrepancy for the
$W^+W^-gamma/Z$ production at the LHC is generally larger than that at the ILC
due to the additional LED contribution via $gg$ fusion subprocess and the
KK-graviton exchanging resonant effect induced by the continuous large
colliding energy in $pp$ collision. We conclude that the $W^{+}W^{-}gamma$ and
$W^{+}W^{-}Z$ productions at the LHC could have the distinct advantage over at
the ILC from the aspect of effectively exploring the LED signal in measuring
$W^+W^-gamma/Z$ production. | | Source: | arXiv, 1209.6401 | | Services: | Forum | Review | PDF | Favorites | |
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