Limits...
Physics at the [Formula: see text] linear collider.

Moortgat-Pick G, Baer H, Battaglia M, Belanger G, Fujii K, Kalinowski J, Heinemeyer S, Kiyo Y, Olive K, Simon F, Uwer P, Wackeroth D, Zerwas PM, Arbey A, Asano M, Bagger J, Bechtle P, Bharucha A, Brau J, Brümmer F, Choi SY, Denner A, Desch K, Dittmaier S, Ellwanger U, Englert C, Freitas A, Ginzburg I, Godfrey S, Greiner N, Grojean C, Grünewald M, Heisig J, Höcker A, Kanemura S, Kawagoe K, Kogler R, Krawczyk M, Kronfeld AS, Kroseberg J, Liebler S, List J, Mahmoudi F, Mambrini Y, Matsumoto S, Mnich J, Mönig K, Mühlleitner MM, Pöschl R, Porod W, Porto S, Rolbiecki K, Schmitt M, Serpico P, Stanitzki M, Stål O, Stefaniak T, Stöckinger D, Weiglein G, Wilson GW, Zeune L, Moortgat F, Xella S, Bagger J, Brau J, Ellis J, Kawagoe K, Komamiya S, Kronfeld AS, Mnich J, Peskin M, Schlatter D, Wagner A, Yamamoto H - Eur Phys J C Part Fields (2015)

Bottom Line: A comprehensive review of physics at an [Formula: see text] linear collider in the energy range of [Formula: see text] GeV-3 TeV is presented in view of recent and expected LHC results, experiments from low-energy as well as astroparticle physics.The report focusses in particular on Higgs-boson, top-quark and electroweak precision physics, but also discusses several models of beyond the standard model physics such as supersymmetry, little Higgs models and extra gauge bosons.The connection to cosmology has been analysed as well.

View Article: PubMed Central - PubMed

Affiliation: II. Institute of Theoretical Physics, University of Hamburg, 22761 Hamburg, Germany ; Deutsches Elektronen Synchrotron (DESY), Hamburg und Zeuthen, 22603 Hamburg, Germany.

ABSTRACT

A comprehensive review of physics at an [Formula: see text] linear collider in the energy range of [Formula: see text] GeV-3 TeV is presented in view of recent and expected LHC results, experiments from low-energy as well as astroparticle physics. The report focusses in particular on Higgs-boson, top-quark and electroweak precision physics, but also discusses several models of beyond the standard model physics such as supersymmetry, little Higgs models and extra gauge bosons. The connection to cosmology has been analysed as well.

No MeSH data available.


Top Resolving power (95 % CL) for  and 2 TeV and  GeV,  ab,  %,  %, for leptonic couplings based on the leptonic observables , , . The couplings correspond to the , LR, LH, and KK models. From Ref. [1000]. Bottom Expected resolution at CLIC with  TeV and  ab on the “normalised” leptonic couplings of a 10 TeV  in various models, assuming lepton universality. The mass of the  is assumed to be unknown. The couplings correspond to the , , and , the SSM, LR, LH and SLH models. The couplings can only be determined up to a two-fold ambiguity. The degeneracy between the  and SLH models might be lifted by including other channels in the analysis (, ,...). From Refs. [9, 10, 1001]
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Fig121: Top Resolving power (95 % CL) for and 2 TeV and  GeV,  ab,  %,  %, for leptonic couplings based on the leptonic observables , , . The couplings correspond to the , LR, LH, and KK models. From Ref. [1000]. Bottom Expected resolution at CLIC with  TeV and  ab on the “normalised” leptonic couplings of a 10 TeV in various models, assuming lepton universality. The mass of the is assumed to be unknown. The couplings correspond to the , , and , the SSM, LR, LH and SLH models. The couplings can only be determined up to a two-fold ambiguity. The degeneracy between the and SLH models might be lifted by including other channels in the analysis (, ,...). From Refs. [9, 10, 1001]

Mentions: If a were discovered at the LHC, measurements of 2-fermion processes at the ILC could provide valuable constraints on its couplings and discriminate between models. Figure 121 (top panel) shows the expected resulting precision on couplings to leptons for  GeV and  ab for 3 values of for several representative models [1000]. In this figure, the KK case should not be taken too literally as the couplings do not in fact correspond to the KK couplings but are an effective coupling, reflecting that in this model there are both photon and Z KK excitations roughly degenerate in mass. The point is simply that the KK model can be distinguished from other models. One notes that there is a two-fold ambiguity in the signs of the lepton couplings since all lepton observables are bi-linear products of the couplings. Hadronic observables can be used to resolve this ambiguity since for this case the quark and lepton couplings enter the interference terms linearly. Studies [997, 1000] have demonstrated that beam polarisation plays an important role in the measurement of the -fermion couplings and therefore in the discrimination between models.


Physics at the [Formula: see text] linear collider.

Moortgat-Pick G, Baer H, Battaglia M, Belanger G, Fujii K, Kalinowski J, Heinemeyer S, Kiyo Y, Olive K, Simon F, Uwer P, Wackeroth D, Zerwas PM, Arbey A, Asano M, Bagger J, Bechtle P, Bharucha A, Brau J, Brümmer F, Choi SY, Denner A, Desch K, Dittmaier S, Ellwanger U, Englert C, Freitas A, Ginzburg I, Godfrey S, Greiner N, Grojean C, Grünewald M, Heisig J, Höcker A, Kanemura S, Kawagoe K, Kogler R, Krawczyk M, Kronfeld AS, Kroseberg J, Liebler S, List J, Mahmoudi F, Mambrini Y, Matsumoto S, Mnich J, Mönig K, Mühlleitner MM, Pöschl R, Porod W, Porto S, Rolbiecki K, Schmitt M, Serpico P, Stanitzki M, Stål O, Stefaniak T, Stöckinger D, Weiglein G, Wilson GW, Zeune L, Moortgat F, Xella S, Bagger J, Brau J, Ellis J, Kawagoe K, Komamiya S, Kronfeld AS, Mnich J, Peskin M, Schlatter D, Wagner A, Yamamoto H - Eur Phys J C Part Fields (2015)

Top Resolving power (95 % CL) for  and 2 TeV and  GeV,  ab,  %,  %, for leptonic couplings based on the leptonic observables , , . The couplings correspond to the , LR, LH, and KK models. From Ref. [1000]. Bottom Expected resolution at CLIC with  TeV and  ab on the “normalised” leptonic couplings of a 10 TeV  in various models, assuming lepton universality. The mass of the  is assumed to be unknown. The couplings correspond to the , , and , the SSM, LR, LH and SLH models. The couplings can only be determined up to a two-fold ambiguity. The degeneracy between the  and SLH models might be lifted by including other channels in the analysis (, ,...). From Refs. [9, 10, 1001]
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Related In: Results  -  Collection

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Show All Figures
getmorefigures.php?uid=PMC4537698&req=5

Fig121: Top Resolving power (95 % CL) for and 2 TeV and  GeV,  ab,  %,  %, for leptonic couplings based on the leptonic observables , , . The couplings correspond to the , LR, LH, and KK models. From Ref. [1000]. Bottom Expected resolution at CLIC with  TeV and  ab on the “normalised” leptonic couplings of a 10 TeV in various models, assuming lepton universality. The mass of the is assumed to be unknown. The couplings correspond to the , , and , the SSM, LR, LH and SLH models. The couplings can only be determined up to a two-fold ambiguity. The degeneracy between the and SLH models might be lifted by including other channels in the analysis (, ,...). From Refs. [9, 10, 1001]
Mentions: If a were discovered at the LHC, measurements of 2-fermion processes at the ILC could provide valuable constraints on its couplings and discriminate between models. Figure 121 (top panel) shows the expected resulting precision on couplings to leptons for  GeV and  ab for 3 values of for several representative models [1000]. In this figure, the KK case should not be taken too literally as the couplings do not in fact correspond to the KK couplings but are an effective coupling, reflecting that in this model there are both photon and Z KK excitations roughly degenerate in mass. The point is simply that the KK model can be distinguished from other models. One notes that there is a two-fold ambiguity in the signs of the lepton couplings since all lepton observables are bi-linear products of the couplings. Hadronic observables can be used to resolve this ambiguity since for this case the quark and lepton couplings enter the interference terms linearly. Studies [997, 1000] have demonstrated that beam polarisation plays an important role in the measurement of the -fermion couplings and therefore in the discrimination between models.

Bottom Line: A comprehensive review of physics at an [Formula: see text] linear collider in the energy range of [Formula: see text] GeV-3 TeV is presented in view of recent and expected LHC results, experiments from low-energy as well as astroparticle physics.The report focusses in particular on Higgs-boson, top-quark and electroweak precision physics, but also discusses several models of beyond the standard model physics such as supersymmetry, little Higgs models and extra gauge bosons.The connection to cosmology has been analysed as well.

View Article: PubMed Central - PubMed

Affiliation: II. Institute of Theoretical Physics, University of Hamburg, 22761 Hamburg, Germany ; Deutsches Elektronen Synchrotron (DESY), Hamburg und Zeuthen, 22603 Hamburg, Germany.

ABSTRACT

A comprehensive review of physics at an [Formula: see text] linear collider in the energy range of [Formula: see text] GeV-3 TeV is presented in view of recent and expected LHC results, experiments from low-energy as well as astroparticle physics. The report focusses in particular on Higgs-boson, top-quark and electroweak precision physics, but also discusses several models of beyond the standard model physics such as supersymmetry, little Higgs models and extra gauge bosons. The connection to cosmology has been analysed as well.

No MeSH data available.