Charged Higgs production at linear colliders in large extra dimensions

Journal Article · Sat Oct 01 04:00:00 EDT 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.72.076007· OSTI ID:20713685

Qiang, Li; Chongsheng, Li; Lilin, Yang ^[1]; Oakes, Robert J ^[2]

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1. Department of Physics, Peking University, Beijing 100871 (China)
2. Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208-3112 (United States)

In the two-Higgs-doublet model (2HDM) with large extra dimensions (LED), we study the contributions of virtual Kaluza-Klein (KK) gravitons to 2HDM charged Higgs production, especially in the two important production processes e{sup +}e{sup -}{yields}H{sup +}H{sup -} and e{sup +}e{sup -}{yields}H{sup -}tb, at future linear colliders (LC). We find that KK graviton effects can significantly modify these total cross sections and also their differential cross sections compared to their respective 2HDM values and, therefore, can be used to probe the effective scale {lambda}{sub T} up to several TeV. For example, at {radical}(s)=2 TeV, the cross sections for e{sup +}e{sup -}{yields}H{sup +}H{sup -} and e{sup +}e{sup -}{yields}H{sup -}tb in the 2HDM are 7.4 fb for m{sub H{sup -}}=150 GeV and 0.003 fb for m{sub H{sup -}}=1.1 TeV and tan{beta}=40, while in LED they are 12.1 and 0.01 fb, respectively, for {lambda}{sub T}=4 TeV.

• OSTI ID: 20713685
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 72; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CROSS SECTIONS
ELECTRON-POSITRON INTERACTIONS
GEV RANGE
GRAVITONS
HIGGS BOSONS
HIGGS MODEL
INTERMEDIATE BOSONS
KALUZA-KLEIN THEORY
LINEAR COLLIDERS
QUANTUM GRAVITY
TEV RANGE
UNIFIED GAUGE MODELS