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arXiv · 2503.24049

The Linear Collider Facility (LCF) at CERN

H. Abramowicz·E. Adli·F. Alharthi·M. Almanza-Soto·M. M. Altakach·S. Ampudia Castelazo·D. Angal-Kalinin·J. A. Anguiano·R. B. Appleby·O. Apsimon·A. Arbey·O. Arquero·D. Attié·J. L. Avila-Jimenez·H. Baer·Y. Bai·C. Balazs·P. Bambade·T. Barklow·J. Baudot·P. Bechtle·T. Behnke·A. B. Bellerive·S. Belomestnykh·Y. Benhammou·J. Berenguer-Antequera·M. Berger·M. Berggren·M. Bertucci·M. Besançon·D. Bett·T. Biekötter·S. Bilanishvili·B. Bilki·J. Björklund Svensson·V. M. Bjelland·C. Blanch·B. Bliewert·M. Boehler·S. Boogert·M. Boronat·V. Boudry·D. Bourilkov·I. Bozovic·J. Braathen·J. E. Brau·C. Breuning·J. -C. Brient·I. Brock·B. Brudnowski·K. Buesser·E. Bulyak·P. N. Burrows·G. Burt·O. Cakir·A. Caldwell·A. C. Canbay·F. G. Celiberto·E. Cenni·I. Chaikovska·R. Chehab·G. Chen·J. B. B. Chen·T. Chikamatsu·V. Cilento·P. Colas·M. Coman·L. Corner·F. Cornet·F. Cornet-Gomez·F. Corriveau·R. Corsini·J. Cvach·R. D'Arcy·C. Damerell·A. Das·S. Dasu·J. de Blas·E. Del Core·M. Demarteau·H. Denizli·R. Dermisek·A. Dhar·S. Dittmaier·F. Djurabekova·E. M. Donegani·A. Doyle·P. Drobniak·T. A. du Pree·B. Dudar·H. Duran Yildiz·J. Dutta·S. Easo·G. Eckerlin·U. Einhaus·C. Emma·E. Esarey·D. Esperante·D. Espriu·L. R Evans
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Abstract

In this paper we outline a proposal for a Linear Collider Facility as the next flagship project for CERN. It offers the opportunity for a timely, cost-effective and staged construction of a new collider that will be able to comprehensively map the Higgs boson's properties, including the Higgs field potential, thanks to a large span in centre-of-mass energies and polarised beams. A comprehensive programme to study the Higgs boson and its closest relatives with high precision requires data at centre-of-mass energies from the Z pole to at least 1 TeV. It should include measurements of the Higgs boson in both major production mechanisms, ee -> ZH and ee -> vvH, precision measurements of gauge boson interactions as well as of the W boson, Higgs boson and top-quark masses, measurement of the top-quark Yukawa coupling through ee ->ttH, measurement of the Higgs boson self-coupling through HH production, and precision measurements of the electroweak couplings of the top quark. In addition, ee collisions offer discovery potential for new particles complementary to HL-LHC.

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H. Abramowicz, E. Adli, F. Alharthi, M. Almanza-Soto, M. M. Altakach, S. Ampudia Castelazo, D. Angal-Kalinin, J. A. Anguiano, R. B. Appleby, O. Apsimon, A. Arbey, O. Arquero, D. Attié, J. L. Avila-Jimenez, H. Baer, Y. Bai, C. Balazs, P. Bambade, T. Barklow, J. Baudot, P. Bechtle, T. Behnke, A. B. Bellerive, S. Belomestnykh, Y. Benhammou, J. Berenguer-Antequera, M. Berger, M. Berggren, M. Bertucci, M. Besançon, D. Bett, T. Biekötter, S. Bilanishvili, B. Bilki, J. Björklund Svensson, V. M. Bjelland, C. Blanch, B. Bliewert, M. Boehler, S. Boogert, M. Boronat, V. Boudry, D. Bourilkov, I. Bozovic, J. Braathen, J. E. Brau, C. Breuning, J. -C. Brient, I. Brock, B. Brudnowski, K. Buesser, E. Bulyak, P. N. Burrows, G. Burt, O. Cakir, A. Caldwell, A. C. Canbay, F. G. Celiberto, E. Cenni, I. Chaikovska, R. Chehab, G. Chen, J. B. B. Chen, T. Chikamatsu, V. Cilento, P. Colas, M. Coman, L. Corner, F. Cornet, F. Cornet-Gomez, F. Corriveau, R. Corsini, J. Cvach, R. D'Arcy, C. Damerell, A. Das, S. Dasu, J. de Blas, E. Del Core, M. Demarteau, H. Denizli, R. Dermisek, A. Dhar, S. Dittmaier, F. Djurabekova, E. M. Donegani, A. Doyle, P. Drobniak, T. A. du Pree, B. Dudar, H. Duran Yildiz, J. Dutta, S. Easo, G. Eckerlin, U. Einhaus, C. Emma, E. Esarey, D. Esperante, D. Espriu, L. R Evans. 2025-03-31. The Linear Collider Facility (LCF) at CERN. https://arxiv.org/abs/2503.24049

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