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Title: Higgs boson pair production in new physics models at hadron, lepton, and photon colliders

Abstract

We study Higgs boson pair production processes at future hadron and lepton colliders including the photon collision option in several new physics models; i.e., the two-Higgs-doublet model, the scalar leptoquark model, the sequential fourth generation fermion model and the vectorlike quark model. Cross sections for these processes can deviate significantly from the standard model predictions due to the one-loop correction to the triple Higgs boson coupling constant. For the one-loop induced processes such as gg{yields}hh and {gamma}{gamma}{yields}hh, where h is the (lightest) Higgs boson and g and {gamma} respectively represent a gluon and a photon, the cross sections can also be affected by new physics particles via additional one-loop diagrams. In the two-Higgs-doublet model and scalar leptoquark models, cross sections of e{sup +}e{sup -}{yields}hhZ and {gamma}{gamma}{yields}hh can be enhanced due to the nondecoupling effect in the one-loop corrections to the triple Higgs boson coupling constant. In the sequential fourth generation fermion model, the cross section for gg{yields}hh becomes very large because of the loop effect of the fermions. In the vectorlike quark model, effects are small because the theory has decoupling property. Measurements of the Higgs boson pair production processes can be useful to explore new physics through the determinationmore » of the Higgs potential.« less

Authors:
 [1]; ;  [2];  [3];  [4]
  1. Department of Physics, Ochanomizu University, Tokyo 112-8610 (Japan)
  2. KEK Theory Center, Institute of Particle and Nuclear Studies, KEK, 1-1 Oho, Tsukuba, Ibaraki 305-0801 (Japan)
  3. Department of Physics, University of Toyama, 3190 Gofuku, Toyama 930-8555 (Japan)
  4. Abdus Salam ICTP of UNESCO and IAEA, Strada Costiera 11, 34151 Trieste (Italy)
Publication Date:
OSTI Identifier:
21503720
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 82; Journal Issue: 11; Other Information: DOI: 10.1103/PhysRevD.82.115002; (c) 2010 American Institute of Physics; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CORRECTIONS; COUPLING CONSTANTS; CROSS SECTIONS; DECOUPLING; ELECTRON-POSITRON INTERACTIONS; FORECASTING; GLUONS; HADRONS; HIGGS BOSONS; HIGGS MODEL; LEPTONS; PAIR PRODUCTION; PARTICLES; PHOTON COLLISIONS; PHOTONS; QUARK MODEL; SIMULATION; STANDARD MODEL; BOSONS; COLLISIONS; COMPOSITE MODELS; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; GRAND UNIFIED THEORY; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; MASSLESS PARTICLES; MATHEMATICAL MODELS; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; POSTULATED PARTICLES; QUANTUM FIELD THEORY; UNIFIED GAUGE MODELS

Citation Formats

Asakawa, Eri, Harada, Daisuke, Okada, Yasuhiro, Department of Particle and Nuclear Physics, Graduate University for Advanced Studies, Kanemura, Shinya, and Tsumura, Koji. Higgs boson pair production in new physics models at hadron, lepton, and photon colliders. United States: N. p., 2010. Web. doi:10.1103/PHYSREVD.82.115002.
Asakawa, Eri, Harada, Daisuke, Okada, Yasuhiro, Department of Particle and Nuclear Physics, Graduate University for Advanced Studies, Kanemura, Shinya, & Tsumura, Koji. Higgs boson pair production in new physics models at hadron, lepton, and photon colliders. United States. doi:10.1103/PHYSREVD.82.115002.
Asakawa, Eri, Harada, Daisuke, Okada, Yasuhiro, Department of Particle and Nuclear Physics, Graduate University for Advanced Studies, Kanemura, Shinya, and Tsumura, Koji. Wed . "Higgs boson pair production in new physics models at hadron, lepton, and photon colliders". United States. doi:10.1103/PHYSREVD.82.115002.
@article{osti_21503720,
title = {Higgs boson pair production in new physics models at hadron, lepton, and photon colliders},
author = {Asakawa, Eri and Harada, Daisuke and Okada, Yasuhiro and Department of Particle and Nuclear Physics, Graduate University for Advanced Studies and Kanemura, Shinya and Tsumura, Koji},
abstractNote = {We study Higgs boson pair production processes at future hadron and lepton colliders including the photon collision option in several new physics models; i.e., the two-Higgs-doublet model, the scalar leptoquark model, the sequential fourth generation fermion model and the vectorlike quark model. Cross sections for these processes can deviate significantly from the standard model predictions due to the one-loop correction to the triple Higgs boson coupling constant. For the one-loop induced processes such as gg{yields}hh and {gamma}{gamma}{yields}hh, where h is the (lightest) Higgs boson and g and {gamma} respectively represent a gluon and a photon, the cross sections can also be affected by new physics particles via additional one-loop diagrams. In the two-Higgs-doublet model and scalar leptoquark models, cross sections of e{sup +}e{sup -}{yields}hhZ and {gamma}{gamma}{yields}hh can be enhanced due to the nondecoupling effect in the one-loop corrections to the triple Higgs boson coupling constant. In the sequential fourth generation fermion model, the cross section for gg{yields}hh becomes very large because of the loop effect of the fermions. In the vectorlike quark model, effects are small because the theory has decoupling property. Measurements of the Higgs boson pair production processes can be useful to explore new physics through the determination of the Higgs potential.},
doi = {10.1103/PHYSREVD.82.115002},
journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 11,
volume = 82,
place = {United States},
year = {2010},
month = {12}
}