Publications by Léon Van Riesen-Haupt

FIRST COMPARISON STUDIES IN DYNAMIC APERTURE FOR NESTED MAGNETS AND BASELINE LATTICE IN THE FCC-ee

Tatiana Pieloni, Mike Seidel, Léon Van Riesen-Haupt

A significant project such as the FCC-ee (with 91.17 km circumference) entails numerous challenges to ensure the stability and performance of the machine. In the pursuit of contributing to the improvement of energy consumption during its operation, the exp ...

JACoW2024

PARAMETER SPACE FOR THE MAGNETIC DESIGN OF NESTED MAGNETS IN THE FCC-ee ARC CELL

Tatiana Pieloni, Mike Seidel, Léon Van Riesen-Haupt, Adrien Jean-Michel Thabuis

The Future Circular Collider (FCC-ee) is designed to explore the 𝑍 0 and W± bosons, along with the Higgs boson and top quark, achieving exceptionally high luminosity. In order to minimize the energy lost per turn due to Synchrotron Radiation (SR) we explor ...

JACoW2024

IMPACT OF DIPOLE QUADRUPOLAR ERRORS IN FCC-ee

Tatiana Pieloni, Mike Seidel, Léon Van Riesen-Haupt, Tomas Rubin

FCC-ee performance is challenged by magnetic errors and imperfections. Magnetic design simulations predict a systematic quadrupolar component in the arc dipoles significantly impacting the machine optics. This paper studies the impact of this component in ...

IOP Publishing2024

FIRST FCC-ee LATTICE DESIGNS WITH NESTED MAGNETS

Tatiana Pieloni, Mike Seidel, Léon Van Riesen-Haupt

The Future Circular Electron-Positron Collider (FCC-ee) represents a cutting-edge particle physics facility designed to further investigate the 𝑍 0 , W± and Higgs boson in addition to the top quark. The implementation of Nested Magnets (NMs) in the FCC-ee ...

JACoW2024

Exploring Fcc-ee Optics Designs with Combined Function Magnets

Tatiana Pieloni, Mike Seidel, Léon Van Riesen-Haupt

The FCC-ee project takes a step forward towards the discovery of new physical phenomena beyond the frontier of the standard model, by aiming at unprecedented center of mass energies and luminosities in a double-ring lepton collider. In order to explore pot ...

2024

First Operational Dodecapole Correction in the Lhc

Léon Van Riesen-Haupt

Amplitude detuning measurements in the LHC have shown that a significant amount of detuning is generated via feed-down from high-order field errors in the magnets of the experiment insertion regions. This undesired effect can be detrimental to the luminosi ...

AMER PHYSICAL SOC2023

Alignment & stability challenges for FCC-ee

Léon Van Riesen-Haupt, Frank Zimmermann

In order to achieve its ultra-low vertical emittance (1 pm) and high luminosity (of up to 230 x 10(34) cm(-2) s(-1) per collision point), the e(+)e(-) Future Circular Collider (FCC-ee) requires a well-informed alignment strategy, powerful correction method ...

SPRINGER2023

FCC Physics Opportunities: Future Circular Collider Conceptual Design Report Volume 1

Pierluigi Bruzzone, Jan Steggemann, Elena Graverini, Jean-Michel Sallese, Thomas Rizzo, Luca Rossi, Rui Ning Wang, Fabio Avino, Xavier Buffat, Tatiana Pieloni

We review the physics opportunities of the Future Circular Collider, covering its e(+)e(-), pp, ep and heavy ion programmes. We describe the measurement capabilities of each FCC component, addressing the study of electroweak, Higgs and strong interactions, ...

2019

FCC-ee: The Lepton Collider: Future Circular Collider Conceptual Design Report Volume 2

Pierluigi Bruzzone, Jan Steggemann, Elena Graverini, Tatiana Pieloni, Jean-Michel Sallese, Mikhail Chapochnikov, Luca Rossi, Vincenzo D'Auria, Javier Barranco Garcia, Fabio Avino

In response to the 2013 Update of the European Strategy for Particle Physics, the Future Circular Collider (FCC) study was launched, as an international collaboration hosted by CERN. This study covers a highest-luminosity high-energy lepton collider (FCC-e ...

2019

HE-LHC: The High-Energy Large Hadron Collider Future Circular Collider Conceptual Design Report Volume 4

Pierluigi Bruzzone, Jan Steggemann, Elena Graverini, Jean-Michel Sallese, Thomas Rizzo, Luca Rossi, Leonid Rivkin, Eva Maria Rodriguez Franco, Fabio Avino, Mikhail Chapochnikov

In response to the 2013 Update of the European Strategy for Particle Physics (EPPSU), the Future Circular Collider (FCC) study was launched as a world-wide international collaboration hosted by CERN. The FCC study covered an energy-frontier hadron collider ...

2019