Physics at the $$e^+ e^-$$ e + e - linear collider

Moortgat‐Pick, Gudrid; Baer, Howard; Battaglia, M.; Bélanger, G.; Fujii, Keisuke; Kalinowski, J.; Heinemeyer, S.; Kiyo, Y.; Olive, Keith A.; Simon, F.; Uwer, Peter; Wackeroth, D.; Zerwas, P.M.; Arbey, Alexandre; Asano, Masaki; Bagger, Jonathan; Bechtle, P.; Bharucha, Aoife; Brau, J. E.; Brümmer, Felix; Choi, Seong Youl; Denner, Ansgar; Desch, K.; Dittmaier, S.; Ellwanger, Ulrich; Englert, Christoph; Freitas, Ayres; Ginzburg, Ilya F.; Godfrey, Stephen; Greiner, Nicolas; Grojean, Christophe; Grünewald, M.; Heisig, Jan; Höcker, A.; Kanemura, Shinya; Kawagoe, K.; Kogler, R.; Krawczyk, Maria; Kronfeld, A. S.; Kroseberg, J.; Liebler, Stefan; List, Jenny; Mahmoudi, F.; Mambrini, Yann; Matsumoto, Shigeki; Mnich, J.; Mönig, K.; Mühlleitner, Margarete; Pöschl, R.; Porod, W.; Porto, Stefano; Rolbiecki, Krzysztof; Schmitt, Michael Henry; Serpico, Pasquale Dario; Stanitzki, M. M.; Stål, Oscar; Stefaniak, Tim; Stöckinger, Dominik; Weiglein, G.; Wilson, G. W.; Zeune, Lisa; Moortgat, F.; Xella, S.; Ellis, John; Komamiya, S.; Peskin, Michael E.; Schlatter, D.; Wagner, A. P.; Yamamoto, H.

doi:10.1140/epjc/s10052-015-3511-9

Cited by 124 publications

(76 citation statements)

References 1,125 publications

(826 reference statements)

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“…This is not the case at an SLC-type facility, where luminosity is proportional to beam energy and the electron beam polarization can reach about 90%. The availability of polarized beams is essential for some important precision measurements in e e + − and γγ collisions [33].  It is straightforward to convert an SLC-type facility into a high-luminosity γγ collider with highly polarized beams.…”

Section: Discussionmentioning

confidence: 99%

An SLC-Type e+ e&minus;/γγ Facility at a Future Circular Collider

Belusević¹

2017

JMP

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It is proposed to place the arcs of an SLC-type facility inside the tunnel of a Future Circular Collider (FCC). Accelerated by a linear accelerator (linac), electron and positron beams would traverse the bending arcs in opposite directions and collide at centre-of-mass energies considerably exceeding those attainable at circular e e + − colliders. The proposed SLC-type facility would have the same luminosity as a conventional two-linac e e + − collider. Using an optical free-electron laser, the facility could be converted into a γγ collider. A superconducting L-band linac at the proposed facility may form a part of the injector chain for a 100-TeV proton collider in the FCC tunnel. The whole accelerator complex would serve as a source of e e + − , γγ , pp and ep interactions. The L-band linac could also be used to produce high-intensity neutrino, kaon and muon beams for fixed-target experiments, as well as X-ray free-electron laser (XFEL) photons for applications in material science and medicine.

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Section: Discussionmentioning

confidence: 99%

An SLC-Type e+ e&minus;/γγ Facility at a Future Circular Collider

Belusević¹

2017

JMP

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“…The setup, schematically depicted in Fig. 5, can be viewed as incorporating future Higgs (CEPC [12], FCC-ee [13,14] and ILC [15][16][17]) and neutrino [18][19][20] factories. If …”

Section: Spin-3/2 Field At Collidersmentioning

confidence: 99%

“…as a function of the e + e − center-of-mass energy for different values of M. The cross section, which falls with √ s without exhibiting a resonance shape, is seen to be large enough to be measurable at the ILC [15][16][17]. In general, the larger M, the smaller the cross section but even 1/ f b luminosity is sufficient for probing ψ μ for a wide range of mass values.…”

Section: Spin-3/2 Field At Collidersmentioning

confidence: 99%

Hidden spin-3/2 field in the standard model

et al. 2017

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Here we show that a massive spin-3/2 field can hide in the SM spectrum in a way revealing itself only virtually. We study collider signatures and loop effects of this field, and determine its role in Higgs inflation and its potential as dark matter. We show that this spin-3/2 field has a rich linear collider phenomenology and motivates consideration of a neutrino-Higgs collider. We also show that the study of Higgs inflation, dark matter and dark energy can reveal more about the neutrino and dark sector.

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“…Because of the profound implications of the newly discovered light Higgs boson h(125GeV), it is natural to first precisely measure its properties at an e + e − Higgs factory and find compelling clues to the new physics. There are three major proposals on the market, the Circular Electron Positron Collider (CEPC) [41][42][43], the Future Circular Collider (FCC-ee) [44][45][46], and the International Linear Collider (ILC) [47][48][49]. All three proposed colliders can run at √ s = 250 GeV by producing Higgs boson via Higgsstrahlung (e + e − → Zh) and W W fusion (e + e − → ννh).…”

Section: Jhep10(2016)007mentioning

confidence: 99%

“…At future e + e − colliders (such as the CEPC [41][42][43], FCC-ee [44][45][46], and ILC [47][48][49]), both productions and decays of the Higgs boson can be systematically studied. The Higgs boson with mass M h = 125 GeV is an ideal case for precision measurement of Higgs decay.…”

Section: New Physics Contributions To Higgs Observables At E + E − Comentioning

confidence: 99%

Probing new physics scales from Higgs and electroweak observables at e + e − Higgs factory

Xiao

2016

J. High Energ. Phys.

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New physics beyond the standard model (SM) can be model-independently formulated via dimension-6 effective operators, whose coefficients (cutoffs) characterize the scales of new physics. We study the probe of new physics scales from the electroweak precision observables (EWPO) and the Higgs observables (HO) at the future e + e − Higgs factory (such as CEPC). To optimize constraints of new physics from all available observables, we establish a scheme-independent approach. With this formulation, we treat the SM electroweak parameters and the coefficients of dimension-6 operators on equal footing, which can be fitted simultaneously by the same χ 2 function. As deviations from the SM are generally small, we can expand the new physics parameters up to linear order and perform an analytical χ 2 fit to derive the potential reach of the new physics scales. We find that the HO from both Higgs produnction and decay rates can probe the new physics scales up to 10 TeV (and to 44 TeV for the case of gluon-involved operator O g ), and the new physics scales of Yukawa-type operators can be probed by the precision Higgs coupling measurements up to (13 − 25) TeV. Further including the EWPO can push the limit up to 35 TeV. From this prospect, we demonstrate that the EWPO measured in the early phase of a Higgs factory can be as important as the Higgs observables. These indirect probes of new physics scales at the Higgs factory can mainly cover the energy range to be directly explored by the next generation hadron colliders of pp (50 −100 TeV), such as the SPPC and FCC-hh.

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Physics at the $$e^+ e^-$$ e + e - linear collider

Cited by 124 publications

References 1,125 publications

An SLC-Type e<sup>+</sup/> e<sup>&minus;</sup/>/γγ Facility at a Future Circular Collider

An SLC-Type e<sup>+</sup/> e<sup>&minus;</sup/>/γγ Facility at a Future Circular Collider

Hidden spin-3/2 field in the standard model

Probing new physics scales from Higgs and electroweak observables at e + e − Higgs factory

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Physics at the $$e^+ e^-$$ e + e - linear collider

Cited by 124 publications

References 1,125 publications

An SLC-Type e&lt;sup&gt;+&lt;/sup/&gt; e&lt;sup&gt;&amp;minus;&lt;/sup/&gt;/γγ Facility at a Future Circular Collider

An SLC-Type e&lt;sup&gt;+&lt;/sup/&gt; e&lt;sup&gt;&amp;minus;&lt;/sup/&gt;/γγ Facility at a Future Circular Collider

Hidden spin-3/2 field in the standard model

Probing new physics scales from Higgs and electroweak observables at e + e − Higgs factory

Contact Info

Product

Resources

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An SLC-Type e<sup>+</sup/> e<sup>−</sup/>/γγ Facility at a Future Circular Collider

An SLC-Type e<sup>+</sup/> e<sup>−</sup/>/γγ Facility at a Future Circular Collider