Publications (41)
500 GeV ILC Operating Scenarios
James E. Brau, representing ILC Parameters Joint Working Group, : +7
The ILC Technical Design Report documents the design of a 500 GeV linear collider, but does not specify the center-of-mass energy steps of operation for the collider. The ILC Param…
Time evolution of ground motion-dependent depolarisation at linear colliders
I. Bailey, C. Bartels, M. Beckmann +5
Future linear colliders plan to collide polarised beams and the planned physics reach requires knowledge of the state of polarisation as precisely as possible. The polarised beams…
Letter of Intent for the LUXE Experiment
H. Abramowicz, M. Altarelli, R. AÃmann +34
This Letter of Intent describes LUXE (Laser Und XFEL Experiment), an experiment that aims to use the high-quality and high-energy electron beam of the European XFEL and a powerful…
Physics at the International Linear Collider
J. List
The International Linear Collider (ILC) is the next large project in accelerator based particle physics. It is complementary to the LHC in many aspects. Measurements from both mach…
WIMP Searches at the ILC using a model-independent Approach
C. Bartels, J. List
In this note the ILC's capabilities for detecting WIMPs and measuring their properties are studied. The expected signal cross section is derived in a model-independent way from the…
Updated baseline design for HALHF: the hybrid, asymmetric, linear Higgs factory
C. A. Lindstrøm, E. Adli, J. B. B. Chen +25
Particle physicists aim to construct a electron-positron Higgs factory as the next major particle collider. However, the high associated costs motivate the development of more affo…
Measurement of lepton-jet correlation in deep-inelastic scattering with the H1 detector using machine learning for unfolding
H1 Collaboration, V. Andreev, M. Arratia +142
The first measurement of lepton-jet momentum imbalance and azimuthal correlation in lepton-proton scattering at high momentum transfer is presented. These data, taken with the H1 d…
New Particles Working Group Report of the Snowmass 2013 Community Summer Study
Y. Gershtein, M. Luty, M. Narain +92
This report summarizes the work of the Energy Frontier New Physics working group of the 2013 Community Summer Study (Snowmass).
A Linear Collider Vision for the Future of Particle Physics
H. Abramowicz, E. Adli, F. Alharthi +446
In this paper we review the physics opportunities at linear colliders with a special focus on high centre-of-mass energies and beam polarisation, take a fresh look at the…
Stau searches and measurements with the ILD concept at the International Linear Collider
M. T. Núñez Pardo de Vera, M. Berggren, J. List
One of the most interesting channels to search for SUSY is the direct pair-production of the -lepton superpartner, . The is with high probability t…
Top physics at high-energy lepton colliders
M. Vos, G. Abbas, M. Beneke +25
A summary is presented of the workshop "top physics at linear colliders" that was held at IFIC Valencia from the 30th of June to the 3rd July 2015. We present an up-to-date status…
Measurement of the 1-jettiness event shape observable in deep-inelastic electron-proton scattering at HERA
The H1 collaboration, V. Andreev, M. Arratia +146
The H1 Collaboration reports the first measurement of the 1-jettiness event shape observable in neutral-current deep-inelastic electron-proton scattering (DIS). The observ…
Impact of jet-production data on the next-to-next-to-leading-order determination of HERAPDF2.0 parton distributions
H1, ZEUS Collaborations, : +234
The HERAPDF2.0 ensemble of parton distribution functions (PDFs) was introduced in 2015. The final stage is presented, a next-to-next-to-leading-order (NNLO) analysis of the HERA da…
Input to the ESPPU: The LUXE Experiment
H. Abramowicz, M. Almanza Soto, M. Altarelli +130
This document presents an overview of LUXE (Laser Und XFEL Experiment), an experiment that will combine the high-quality and high-energy electron beam of the European XFEL with a h…
Observation and differential cross section measurement of neutral current DIS events with an empty hemisphere in the Breit frame
The H1 collaboration, V. Andreev, M. Arratia +146
The Breit frame provides a natural frame to analyze lepton-proton scattering events. In this reference frame, the parton model hard interactions between a quark and an exchanged bo…
Technical Design Report for the LUXE Experiment
H. Abramowicz, M. Almanza Soto, M. Altarelli +131
This Technical Design Report presents a detailed description of all aspects of the LUXE (Laser Und XFEL Experiment), an experiment that will combine the high-quality and high-energ…
Unbinned Deep Learning Jet Substructure Measurement in High ep collisions at HERA
The H1 collaboration, V. Andreev, M. Arratia +142
The radiation pattern within high energy quark- and gluon-initiated jets (jet substructure) is used extensively as a precision probe of the strong force as well as an environment f…
Executive Summary of the Workshop on Polarisation and Beam Energy Measurements at the ILC
D. Käfer, J. List, K. Mönig +6
This note summarizes the results of the "Workshop on Polarisation and Beam Energy Measurements at the ILC", held at DESY (Zeuthen) April 9-11 2008. The topics for the workshop incl…
LHCSki 2016 - A First Discussion of 13 TeV Results
W. Adam, J. Pradler, J. Schieck +34
These are the proceedings of the LHCSki 2016 workshop "A First Discussion of 13 TeV Results" that has been held at the Obergurgl Universitätszentrum, Tirol, Austria, April 10 - 15…
The ILD Detector: A Versatile Detector for an Electron-Positron Collider at Energies up to 1 TeV
H. Abramowicz, D. Ahmadi, J. Alcaraz +276
The International Large Detector, ILD, is a detector concept for an experiment at a future high energy lepton collider. The detector has been optimised for precision physics in a r…
Status of the International Linear Collider
Y. Abe, S. Arai, S. Araki +149
This paper is not a proposal for a CERN future project but provides information on the International Linear Collider (ILC) considered for Japan in order to facilitate the European…
Measurement of groomed event shape observables in deep-inelastic electron-proton scattering at HERA
The H1 collaboration, V. Andreev, M. Arratia +145
The H1 Collaboration at HERA reports the first measurement of groomed event shape observables in deep inelastic electron-proton scattering (DIS) at GeV, using data r…
Evaluating the ILC SUSY reach in the most challenging scenario: NLSP, low , lowest cross-section
M. T. Núñez Pardo de Vera, M. Berggren, J. List
Pair-production of the superpartner of the -lepton, the , is one of the most interesting channels to search for SUSY in: The is likely to be the lightest s…
Non-Simplified SUSY: Stau-Coannihilation at LHC and ILC
M. Berggren, A. Cakir, D. Krücker +5
If new phenomena beyond the Standard Model will be discovered at the LHC, the properties of the new particles could be determined with data from the High-Luminosity LHC and from a…
ECFA Higgs, electroweak, and top Factory Study
H. Abidi, J. A. Aguilar-Saavedra, S. Airen +373
The ECFA Higgs, electroweak, and top Factory Study ran between 2021 and 2025 as a broad effort across the experimental and theoretical particle physics communities, bringing togeth…
The Linear Collider Facility (LCF) at CERN
H. Abramowicz, E. Adli, F. Alharthi +406
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 construc…
Machine Learning-Assisted Measurement of Lepton-Jet Azimuthal Angular Asymmetries in Deep-Inelastic Scattering at HERA
The H1 collaboration, V. Andreev, M. Arratia +141
In deep-inelastic positron-proton scattering, the lepton-jet azimuthal angular asymmetry is measured using data collected with the H1 detector at HERA. When the average transverse…
searches at the ILC
M. T. Núñez Pardo de Vera, M. Berggren, J. List
The direct pair-production of the superpartner of the -lepton, the , is one of the most interesting channels to search for SUSY in. First of all, the $\widetildeÏ…
Polarimeters and Energy Spectrometers for the ILC Beam Delivery System
S. Boogert, A. F. Hartin, M. Hildreth +11
Any future high energy e+e- linear collider aims at precision measurements of Standard Model quantities as well as of new, not yet discovered phenomena. In order to pursue this phy…
Physics at the e+ e- Linear Collider
G. Moortgat-Pick, H. Baer, M. Battaglia +60
A comprehensive review of physics at an e+e- Linear Collider in the energy range of sqrt{s}=92 GeV--3 TeV is presented in view of recent and expected LHC results, experiments from…
Model-independent WIMP Searches at the ILC
C. Bartels, J. List
We investigate the possibility to detect WIMPs at the ILC in a model-independent way using events with single photons. The study is done with a full detector simulation of the LDC…
Higgs Working Group Report of the Snowmass 2013 Community Planning Study
S. Dawson, A. Gritsan, H. Logan +131
This report summarizes the work of the Energy Frontier Higgs Boson working group of the 2013 Community Summer Study (Snowmass). We identify the key elements of a precision Higgs ph…
Contribution of ALEGRO to the Update of the European Strategy on Particle Physics
B. Cros, P. Muggli, L. Corner +18
Advanced and novel accelerators (ANAs), driven a by laser pulse or a relativistic particle bunch, have made remarkable progress over the last decades. They accelerated electrons by…
Simulation Studies and Detector Scenarios for an ILC Polarimeter
K. O. Eyser, C. Helebrant, D. Kaefer +2
High energy longitudinal electron polarimetry will be based on Compton scattering for the International Linear Collider. An unobtrusive measurement has to include a magnet chicane…
Precision Polarimetry at the International Linear Collider
C. Helebrant, D. Käfer, J. List
The International Linear Collider (ILC) will collide polarised electrons and positrons at beam energies of 45.6 GeV to 250 GeV and optionally up to 500 GeV. To fully exploit the ph…
Determination of the strong coupling constant in next-to-next-to-leading order QCD using H1 jet cross section measurements
H1 collaboration, V. Andreev, A. Baghdasaryan +145
The strong coupling constant is determined from inclusive jet and dijet cross sections in neutral-current deep-inelastic scattering (DIS) measured at HERA by the H…
Non-Simplified SUSY: stau-Coannihilation at LHC and ILC
M. Berggren, A. Cakir, D. Krücker +3
Simplified models have become a widely used and important tool to cover the more diverse phenomenology beyond constrained SUSY models. However, they come with a substantial number…
ILC Operating Scenarios
T. Barklow, J. Brau, K. Fujii +4
The ILC Technical Design Report documents the design for the construction of a linear collider which can be operated at energies up to 500 GeV. This report summarizes the outcome o…
Science4Peace: A Plea for Continued Peaceful International Scientific Cooperation (Input to the European Strategy for Particle Physics -- 2026 update)
A. Ali, M. Barone, D. Britzger +16
The European Strategy for Particle Physics (ESPP) - 2026 update is taking place in a turbulent international climate. Many of the norms that have governed relations between states…
Beam Polarization at the ILC: the Physics Impact and the Accelerator Solutions
B. Aurand, I. Bailey, C. Bartels +21
In this contribution accelerator solutions for polarized beams and their impact on physics measurements are discussed. Focus are physics requirements for precision polarimetry near…
A Science4Peace initiative: Alleviating the consequences of sanctions in international scientific cooperation
A. Ali, M. Barone, S. Brentjes +23
The armed invasion of Ukraine by the Russian Federation has adversely affected the relations between Russia and Western countries. Among other aspects, it has put scientific cooper…