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.


The  plane for  and , assuming  GeV and  GeV. Contours and shaded regions are described in the text
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Fig151: The plane for and , assuming  GeV and  GeV. Contours and shaded regions are described in the text

Mentions: The CMSSM is therefore a four parameter theory (the sign of must also be specified). For given values of , , and , the regions of the CMSSM parameter space that yield an acceptable relic density and satisfy other phenomenological constraints may be displayed in the plane. In Fig. 151 [1354], the dark (blue) shaded region corresponds to that portion of the CMSSM plane with , , and such that the computed relic density yields the PLANCK value given in Eq. (160). For this choice of and , the relic density strip is v-shaped. Inside the ‘v’, the annihilation cross sections are too small to maintain an acceptable relic density and is too large. The upper side of the ‘v’, at large , is produced by coannihilation processes between the LSP and the next lightest sparticle, in this case the  [1355–1360]. These enhance the annihilation cross section and reduce the relic density. This occurs when the LSP and NLSP are nearly degenerate in mass. The lower side of the ‘v’, at lower , is produced by coannihilations between the LSP and the  [1361–1367]. The dark (brown) shaded regions outside of the ‘v’ have either or and are excluded. Also shown in the figure is the constraint from [1368–1371] (shaded green) which excludes the stop-coannihilation strip in the portion of the plane shown. Contours of constant Higgs mass are shown by the black curves. Higgs masses are computed using FeynHiggs [226, 261, 837, 838, 1372, 1373] and carry a roughly 1.5 GeV uncertainty. The thick purple line corresponds to the ATLAS limit on supersymmetry searches [1374]. The area to left of the line is excluded. Finally, the solid green contour corresponds to the 95 % CL upper limit to ratio of the branching fraction of relative to the SM [1375–1377].Fig. 152


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)

The  plane for  and , assuming  GeV and  GeV. Contours and shaded regions are described in the text
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

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

Fig151: The plane for and , assuming  GeV and  GeV. Contours and shaded regions are described in the text
Mentions: The CMSSM is therefore a four parameter theory (the sign of must also be specified). For given values of , , and , the regions of the CMSSM parameter space that yield an acceptable relic density and satisfy other phenomenological constraints may be displayed in the plane. In Fig. 151 [1354], the dark (blue) shaded region corresponds to that portion of the CMSSM plane with , , and such that the computed relic density yields the PLANCK value given in Eq. (160). For this choice of and , the relic density strip is v-shaped. Inside the ‘v’, the annihilation cross sections are too small to maintain an acceptable relic density and is too large. The upper side of the ‘v’, at large , is produced by coannihilation processes between the LSP and the next lightest sparticle, in this case the  [1355–1360]. These enhance the annihilation cross section and reduce the relic density. This occurs when the LSP and NLSP are nearly degenerate in mass. The lower side of the ‘v’, at lower , is produced by coannihilations between the LSP and the  [1361–1367]. The dark (brown) shaded regions outside of the ‘v’ have either or and are excluded. Also shown in the figure is the constraint from [1368–1371] (shaded green) which excludes the stop-coannihilation strip in the portion of the plane shown. Contours of constant Higgs mass are shown by the black curves. Higgs masses are computed using FeynHiggs [226, 261, 837, 838, 1372, 1373] and carry a roughly 1.5 GeV uncertainty. The thick purple line corresponds to the ATLAS limit on supersymmetry searches [1374]. The area to left of the line is excluded. Finally, the solid green contour corresponds to the 95 % CL upper limit to ratio of the branching fraction of relative to the SM [1375–1377].Fig. 152

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.