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Enhancement of associated (HW -/+)-W-+/- production in the NMSSM

Enberg, R.; Pasechnik, Roman LU and Stal, O. (2012) In Physical Review D (Particles, Fields, Gravitation and Cosmology) 85(7).
Abstract
We study the associated production of a charged Higgs and a W boson in high-energy pp collisions at the LHC. This is an interesting process for charged Higgs discovery, or exclusion, since the production cross section could depend strongly on the model, offering potential discriminating power between supersymmetric extensions of the standard model with minimal or extended Higgs sectors. We compute the cross section for this process in the next-to-minimal supersymmetric standard model (NMSSM), at the tree level for quark-quark scattering, and at one-loop level for gluon-gluon scattering. The most important corrections beyond leading order are taken into account using an improved Born approximation. We find that the pp -> (HW -/+)-W-+/-... (More)
We study the associated production of a charged Higgs and a W boson in high-energy pp collisions at the LHC. This is an interesting process for charged Higgs discovery, or exclusion, since the production cross section could depend strongly on the model, offering potential discriminating power between supersymmetric extensions of the standard model with minimal or extended Higgs sectors. We compute the cross section for this process in the next-to-minimal supersymmetric standard model (NMSSM), at the tree level for quark-quark scattering, and at one-loop level for gluon-gluon scattering. The most important corrections beyond leading order are taken into account using an improved Born approximation. We find that the pp -> (HW -/+)-W-+/- cross section can be resonantly enhanced by up to an order of magnitude over its MSSM value (both for root s = 7 TeV and 14 TeV) through the contributions of heavy, neutral, singlet-dominated Higgs bosons appearing in the s-channel. Since such Higgs mass configurations are normally not possible in the MSSM, the observation of associated (HW -/+)-W-+/- production at the LHC could provide a striking, although indirect, signature of a more complicated Higgs sector. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review D (Particles, Fields, Gravitation and Cosmology)
volume
85
issue
7
publisher
American Physical Society
external identifiers
  • wos:000302994100006
  • scopus:84860199153
ISSN
1550-2368
DOI
10.1103/PhysRevD.85.075016
language
English
LU publication?
yes
id
97eca28d-4da1-4497-bfdb-4603eca7fc75 (old id 2570251)
date added to LUP
2012-06-01 13:41:35
date last changed
2017-10-22 03:11:35
@article{97eca28d-4da1-4497-bfdb-4603eca7fc75,
  abstract     = {We study the associated production of a charged Higgs and a W boson in high-energy pp collisions at the LHC. This is an interesting process for charged Higgs discovery, or exclusion, since the production cross section could depend strongly on the model, offering potential discriminating power between supersymmetric extensions of the standard model with minimal or extended Higgs sectors. We compute the cross section for this process in the next-to-minimal supersymmetric standard model (NMSSM), at the tree level for quark-quark scattering, and at one-loop level for gluon-gluon scattering. The most important corrections beyond leading order are taken into account using an improved Born approximation. We find that the pp -> (HW -/+)-W-+/- cross section can be resonantly enhanced by up to an order of magnitude over its MSSM value (both for root s = 7 TeV and 14 TeV) through the contributions of heavy, neutral, singlet-dominated Higgs bosons appearing in the s-channel. Since such Higgs mass configurations are normally not possible in the MSSM, the observation of associated (HW -/+)-W-+/- production at the LHC could provide a striking, although indirect, signature of a more complicated Higgs sector.},
  author       = {Enberg, R. and Pasechnik, Roman and Stal, O.},
  issn         = {1550-2368},
  language     = {eng},
  number       = {7},
  publisher    = {American Physical Society},
  series       = {Physical Review D (Particles, Fields, Gravitation and Cosmology)},
  title        = {Enhancement of associated (HW -/+)-W-+/- production in the NMSSM},
  url          = {http://dx.doi.org/10.1103/PhysRevD.85.075016},
  volume       = {85},
  year         = {2012},
}