Abstract
We study the Z boson pair production at the CERN Large Hadron Collider in the Randall-Sundrum (RS) scenario with the Goldberger-Wise stabilization mechanism. It is shown that a comprehensive account of the Kaluza-Klein (KK) graviton and radion effects is crucial to probe the model: The KK graviton effects enhance the cross section of gg→ZZ on the whole so that the resonance peak of the radion becomes easy to detect, whereas the RS effects on the qq̄→ZZ process are rather insignificant. The pT and invariant-mass distributions are presented to study the dependence of the RS model parameters. The production of longitudinally polarized Z bosons, to which the standard model contributions are suppressed, is mainly due to KK gravitons and the radion, providing one of the most robust methods to signal the RS effects. The 1σ sensitivity bounds on (Λπ,mφ) with k/MPI = O.1 are also obtained such that the effective weak scale Λπ of order 5 TeV can be experimentally probed.
| Original language | English |
|---|---|
| Article number | 075008 |
| Pages (from-to) | 750081-7500810 |
| Number of pages | 6750730 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 65 |
| Issue number | 7 B |
| Publication status | Published - 2002 Apr 1 |
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All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)
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Z boson pair production at CERN LHC in a stabilized Randall-Sundrum scenario. / Park, Seong Chan; Song, H. S.; Song, Jeonghyeon.
In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 65, No. 7 B, 075008, 01.04.2002, p. 750081-7500810.Research output: Contribution to journal › Article
TY - JOUR
T1 - Z boson pair production at CERN LHC in a stabilized Randall-Sundrum scenario
AU - Park, Seong Chan
AU - Song, H. S.
AU - Song, Jeonghyeon
PY - 2002/4/1
Y1 - 2002/4/1
N2 - We study the Z boson pair production at the CERN Large Hadron Collider in the Randall-Sundrum (RS) scenario with the Goldberger-Wise stabilization mechanism. It is shown that a comprehensive account of the Kaluza-Klein (KK) graviton and radion effects is crucial to probe the model: The KK graviton effects enhance the cross section of gg→ZZ on the whole so that the resonance peak of the radion becomes easy to detect, whereas the RS effects on the qq̄→ZZ process are rather insignificant. The pT and invariant-mass distributions are presented to study the dependence of the RS model parameters. The production of longitudinally polarized Z bosons, to which the standard model contributions are suppressed, is mainly due to KK gravitons and the radion, providing one of the most robust methods to signal the RS effects. The 1σ sensitivity bounds on (Λπ,mφ) with k/MPI = O.1 are also obtained such that the effective weak scale Λπ of order 5 TeV can be experimentally probed.
AB - We study the Z boson pair production at the CERN Large Hadron Collider in the Randall-Sundrum (RS) scenario with the Goldberger-Wise stabilization mechanism. It is shown that a comprehensive account of the Kaluza-Klein (KK) graviton and radion effects is crucial to probe the model: The KK graviton effects enhance the cross section of gg→ZZ on the whole so that the resonance peak of the radion becomes easy to detect, whereas the RS effects on the qq̄→ZZ process are rather insignificant. The pT and invariant-mass distributions are presented to study the dependence of the RS model parameters. The production of longitudinally polarized Z bosons, to which the standard model contributions are suppressed, is mainly due to KK gravitons and the radion, providing one of the most robust methods to signal the RS effects. The 1σ sensitivity bounds on (Λπ,mφ) with k/MPI = O.1 are also obtained such that the effective weak scale Λπ of order 5 TeV can be experimentally probed.
UR - http://www.scopus.com/inward/record.url?scp=0036541863&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036541863&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0036541863
VL - 65
SP - 750081
EP - 7500810
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
SN - 1550-7998
IS - 7 B
M1 - 075008
ER -