Results 111 to 120 of about 3,938 (228)

Design of beam optics for the Future Circular Collider e+e- -collider rings

, 2016
A beam optics scheme has been designed for the Future Circular Collider-e+e- (FCC-ee). The main characteristics of the design are: beam energy 45 to 175 GeV, 100 km circumference with two interaction points (IPs) per ring, horizontal crossing angle of 30
Aiba, M., Aumon, S., Benedikt, M., Blondel, A., Bogomyagkov, A., Boscolo, M., Burkhardt, H., Cai, Y., Doblhammer, A., Haerer, B., Holzer, B., Jowett, J. M., Koop, I., Koratzinos, M., Levichev, E., Medina, L., Ohmi, K., Oide, K., Papaphilippou, Y., Piminov, P., Shatilov, D., Sinyatkin, S., Sullivan, M., Wenninger, J., Wienands, U., Zhou, D., Zimmermann, F.   +26 more
core   +2 more sources

High-precision $\alpha_s$ measurements from LHC to FCC-ee

, 2015
This document provides a writeup of all contributions to the workshop on "High precision measurements of $\alpha_s$: From LHC to FCC-ee" held at CERN, Oct. 12--13, 2015.
Alekhin, S., Banfi, A., Bethke, S., Blümlein, J., Chetyrkin, K. G., d'Enterria, D., d'Enterria, David, Dissertori, G., Hoang, A. H., Klasen, M., Klijnsma, T., Kluth, S., Kneur, J. -L., Kniehl, B. A., Kolodrubetz, D. W., Kühn, J., Mackenzie, P., Malaescu, B., Mateu, V., Mihaila, L., Moch, S., Mönig, K., Perez-Ramos, R., Pich, A., Pires, J., Rabbertz, K., Riera, J. Soto i, Salam, G. P., Sannino, F., Skands, Peter Z., Srebre, M., Stewart, I. W., Tormo, X. Garcia i   +32 more
core  

Timing-based mass measurement of exotic long-lived particles at the FCC-ee

European Physical Journal C: Particles and Fields
The very high luminosity run foreseen at the Z-pole for the FCC-ee will allow the detection in Z decays of new particles with very low couplings to the Standard Model. These particles can have measurable flight paths before they decay.
R. Aleksan, E. Perez, G. Polesello, N. Valle   +3 more
doaj   +1 more source

Probing lepton flavor violation via $e\tau$ production in an effective framework at a future electron-positron circular coll

SciPost Physics Proceedings
In the Standard Model framework, lepton flavor is conserved in interactions. However, it can be violated in certain scenarios beyond the Standard Model.
Seyed Mohsen Etesami, Reza Jafari, Mojtaba Mohammadi Najafabadi, Seddigheh Tizchang
doaj   +1 more source

Sensitivity of the FCC-ee to decay of an axion-like particle into two photons

Journal of High Energy Physics
The decay of the Z boson into axion-like particles (ALP) at the Z-pole run of the proposed CERN FCC-ee collider is investigated. We perform a detailed study of final states with three photons or with a single photon and missing energy, yielding an ...
G. Polesello
doaj   +1 more source

Improved strong coupling determinations from hadronic decays of electroweak bosons at N$^3$LO accuracy

, 2020
We present two new extractions of the QCD coupling constant at the Z pole, $\alpha_S(m_Z)$, from detailed comparisons of inclusive W and Z hadronic decays data to state-of-the-art perturbative Quantum Chromodynamics calculations at next-to-next-to-next ...
d'Enterria, David, Jacobsen, Villads
core  

ISEV2025 Abstract Book

Journal of Extracellular Vesicles, Volume 14, Issue S1, October 2025.
wiley   +1 more source

Impact of beam asymmetries at the Future Circular Collider e^{+}e^{-}

Physical Review Accelerators and Beams
In this paper, we present detailed simulations with asymmetric initial beam settings in the context of the proposed Future Circular Collider e^{+}e^{-} (FCC-ee) using the xsuite framework.
Peter Kicsiny, Xavier Buffat, Khoi Le Nguyen Nguyen, Tatiana Pieloni, Mike Seidel   +4 more
doaj   +1 more source

New Physics Searches with Higgs-photon associated production at the Higgs Factory

, 2015
The Higgs factory is designed for precise measurement of Higgs characters and search for new physics. In this paper we propose that $e^+e^- \to \gamma h$ process could be a useful channel for new physics, which is normally expressed model independently ...
Ren, Hong-Yu
core   +1 more source

FCC-ee: Your Questions Answered

, 2019
Contribution to the European Particle Physics Strategy Update 2018-2020.
Blondel, A., Janot, P., Alipour Tehrani, N., Azzi, P., Azzurri, P., Bacchetta, N., Benedikt, M., Blekman, F., Boscolo, M., Dam, M., de Curtis, S., d'Enterria, D., Ellis, J., Ganis, G., Gluza, J., Helsens, C., Jadach, S., Koratzinos, M., Klute, M., Leonidopoulos, C., Locci, E., Mangano, M., Monteil, S., Oide, K., Okorokov, V.A., Perez, E., Riemann, T., Tenchini, R., Selvaggi, M., Voutsinas, G., Wenninger, J., Zimmermann, F.   +31 more
openaire   +4 more sources