Results 31 to 40 of about 3,938 (228)

The path to 0.01% theoretical luminosity precision for the FCC-ee

Physics Letters B, 2019
The current status of the theoretical precision for the Bhabha luminometry is critically reviewed and pathways are outlined to the requirement targeted by the FCC-ee precision studies.
S. Jadach, W. Płaczek, M. Skrzypek, B.F.L. Ward, S.A. Yost   +4 more
doaj   +1 more source

Progress and R/D challenges for FCC-ee SRF

EPJ Techniques and Instrumentation, 2023
The FCC-ee machines present a huge challenge for the RF systems, which need to be adapted to very diverse beam conditions going from moderate energy and high current for the Z machine to high energy and low beam current for the ttbar.
W. Venturini Delsolaro, M. Garlasche, F. Peauger, G. Rosaz, I. Karpov, L. Zhang, A. M. Valente Feliciano, S. A. Udongwo, A. Bianchi, G. Bellini, L. M. A. Ferrera, C. Pereira Carlos, L. Vega Cid, S. Leith, T. Proslier, S. Gorgi Zadeh, M. Timmins, M. Therasse, T. Koettig, S. Atieh, O. Brunner, F. Gerigk   +21 more
doaj   +1 more source

IR-Improved Amplitude-Based Resummation in Quantum Field Theory: New Results and New Issues

SciPost Physics Proceedings, 2022
With the advancement of strategies for the precision physics programs for the HL-LHC, FCC-ee, FCC-hh, ILC, CLIC, CEPC, and CPPC, the need for proper control of the attendant theoretical precision tags is manifest. We discuss the role that amplitude-based
B.F.L. Ward, S. Jadach, W. Placzek, M. Skrzypek, Z. Was, S. A. Yost
doaj   +1 more source

Associated production of neutrino and dark fermion at future lepton colliders

Journal of High Energy Physics, 2023
Fermionic dark matter can be pairly produced and hence searched with missing energy at colliders. We extend such probe to the associated production of a neutrino and a dark sector fermion at the future e + e − colliders such as CEPC, FCC-ee, ILC, and ...
Shao-Feng Ge, Kai Ma, Xiao-Dong Ma, Jie Sheng   +3 more
doaj   +1 more source

Coupling impedances and collective effects for FCC-ee [PDF]

, 2017
A very important issue for the Future Circular Collider (FCC) is represented by collective effects due to the selfinduced electromagnetic fields, which, acting back on the beam, could produce dangerous instabilities.
Alexander, Novokhatski, Belli, Eleonora, Castorina, Giovanni, Migliorati, Mauro, Mikhail, Zobov, Persichelli, Serena, Spataro, Bruno   +6 more
core   +1 more source

Beam Instrumentation Challenges for FCC-ee

, 2022
Proceedings of the 65th ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e- Colliders, eeFACT2022, Frascati ...
Carideo, F., Lefevre, T., Mazzoni, S., Schlögelhofer, A., Wendt, M., Härer, B., Niehues, G., Reißig, M., Müller, Anke Susanne, Iriso, U., Mitsuhashi, T., Siano, M.   +11 more
openaire   +2 more sources

Sensitivities of prospective future e + e − colliders to decoupled new physics [PDF]

, 2015
We explore the indirect sensitivities to decoupled new physics of prospective precision electroweak measurements, triple-gauge-coupling measurements and Higgs physics at future $e^+e^-$ colliders, with emphasis on the ILC250 and FCC-ee.
John Ellis, Tevong You
core   +3 more sources

FCC-ee interaction region backgrounds [PDF]

International Journal of Modern Physics A, 2020
The FCC-ee machine induced backgrounds on the two proposed detectors (CLD and IDEA) have been studied in detail. Synchrotron Radiation (SR) considerations dictate the Interaction Region (IR) optimization. An asymmetric IR design limits the final bend critical energy to 100 keV.
Voutsinas, G., Elsener, K., Janot, P., El Khechen, D., Kolano, A., Leogrande, E., Perez, E. F., Tehrani, N. A., Viazlo, O., Boscolo, M., Blanco, O., Collamati, F., Bacchetta, N., Dam, M., Sullivan, M. K.   +14 more
openaire   +4 more sources

FCC-ee: Energy Calibration

, 2015
FCC-ee aims to improve on electroweak precision measurements, with goals of 100 keV on the Z mass and width, and a fraction of an MeV on the W mass. Compared to LEP, this implies a much improved knowledge of the centre-of-mass energy when operating at the Z peak and WW threshold.
Koratzinos, M., Blondel, A., Gianfelice-Wendt, E., Zimmermann, F.   +3 more
openaire   +2 more sources

FCC-ee Overview

, 2014
The FCC-ee is a proposed circular e+e- collider installed in a new 100 km tunnel delivering high luminosity to four experiments at centre-of-mass energies ranging from 91 GeV (Z pole) over 160 GeV (W threshold) and 240 GeV (H production) to 350 GeV (t physics).
Zimmermann, Frank, Zimmermann, Z., Benedikt, Michael, Cerutti, F., Ferrari, A., Gutleber, J., Härer, Bastian, Holzer, B., Jensen, E.   +8 more
openaire   +2 more sources