CP-ODD NEUTRAL HIGGS EFFECTS IN $t\bar t$ PRODUCTION

Pilaftsis, Apostolos; Nowakowski, M.

doi:10.1142/s0217751x94000509

Cited by 30 publications

(38 citation statements)

References 17 publications

(37 reference statements)

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“…Furthermore, we find that the strong mixing of the Higgs bosons may induce large CP violation in the vertices [10]. Such resonant effects of CP violation may be tested at future high-energy colliders such as the LHC, NLC and the FMC [10,11,12,13,14,15]. Finally, the analysis presented in this paper clearly demonstrates that the MSSM with explicit CP violation in the Higgs sector constitutes an interesting theoretical framework, which will have a significant impact on B-meson decays, dark-matter searches and electroweak baryogenesis.…”

Section: Discussionmentioning

confidence: 99%

Higgs bosons in the minimal supersymmetric standard model with explicit CP violation

1999

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We study the Higgs-boson mass spectrum of the minimal supersymmetric standard model, in which the tree-level CP invariance of the Higgs potential is broken explicitly by loop effects of soft-CP-violating Yukawa interactions related to scalar quarks of the third generation. The analysis is performed by considering the CP-non-invariant renormalization-group improved effective potential through next-to-leading order that includes leading logarithms due to two-loop Yukawa and QCD corrections. We find that the three neutral Higgs particles predicted by the theory may strongly mix with one another, thereby significantly modifying their tree-level couplings to fermions and to the W ± and Z bosons. We analyze the phenomenological consequences of such a minimal supersymmetric scenario of explicit CP violation on the production rates of the lightest Higgs particle, and discuss strategies for its potential discovery at high-energy colliders.

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Section: Discussionmentioning

confidence: 99%

Higgs bosons in the minimal supersymmetric standard model with explicit CP violation

1999

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“…We should now notice that the D symmetry of the Higgs potential cannot be promoted to a continuous one of the Peccei-Quinn type [7], unless λ 5 = 0. To be specific, for vanishing λ 5 , one may choose the Q quantum numbers for the fields 4) and then show that in addition to the gauge symmetry U(1) Y , the total Lagrangian L =…”

Section: Abelian Two-higgs Modelmentioning

confidence: 99%

“…Apart from the theoretical interest in providing a self-consistent solution to the problem mentioned above, Higgs scalar-pseudoscalar transitions may directly be probed at present and planned high-energy machines [4,5]. In the SM, HZ mixing is expected to occur at the three-loop level [5], as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

CP-odd tadpole renormalization of Higgs scalar-pseudoscalar mixing

1998

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We consider an Abelian model with a CP-conserving Higgs potential spanned by two complex Higgs fields. The CP invariance of the Higgs potential is then broken explicitly beyond the Born approximation by introducing soft-CP-violating Yukawa interactions. Based on the non-renormalization theorem, we derive the consistency conditions under which a CPodd counterterm exists and, at the same time, renders the one-loop-induced mixing of a CP-even Higgs boson with a CP-odd Higgs scalar ultra-violet finite. The novel CP-odd tadpole renormalization may then be determined from the minimization constraints on the Higgs potential. Finally, we discuss the phenomenological consequences of the so-generated CP-violating scalar-pseudoscalar mixing for the electric dipole moments of neutron, electron and muon.

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“…Our presentation is organized in such a way that the formalism may easily be extended to Higgs production at other colliders. For instance, our formalism can be applied to γγ colliders [25,32], which are analogous to gg collisions at the LHC, to µ + µ − colliders [26], which have formal similarities with bb collisions at the LHC, and to W W -fusion and Higgsstrahlung processes at e + e − linear colliders [33].…”

Section: Introductionmentioning

confidence: 99%

CERN LHC signatures of resonantCPviolation in a minimal supersymmetric Higgs sector

2004

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We present the general formalism for studying CP-violating phenomena in the production, mixing and decay of a coupled system of CP-violating neutral Higgs bosons at high-energy colliders. Considering the Minimal Supersymmetric Standard Model (MSSM) Higgs sector in which CP violation is radiatively induced by phases in the soft supersymmetry-breaking third-generation trilinear squark couplings and gaugino masses, we apply our formalism to neutral Higgs production viabb, gg and W + W − collisions at the LHC. We discuss CP asymmetries in the longitudinal and transverse polarizations of τ + τ − pairs.

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CP-ODD NEUTRAL HIGGS EFFECTS IN $t\bar t$ PRODUCTION

Cited by 30 publications

References 17 publications

Higgs bosons in the minimal supersymmetric standard model with explicit CP violation

Higgs bosons in the minimal supersymmetric standard model with explicit CP violation

CP-odd tadpole renormalization of Higgs scalar-pseudoscalar mixing

CERN LHC signatures of resonantCPviolation in a minimal supersymmetric Higgs sector

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