Publications (83)
TESLA Technical Design Report Part III: Physics at an e+e- Linear Collider
R. -D. Heuer, D. J. Miller, F. Richard +236
The TESLA Technical Design Report Part III: Physics at an e+e- Linear Collider
Exclusive and photoproduction and the low gluon
S. P. Jones, A. D. Martin, M. G. Ryskin +1
We study exclusive vector meson photoproduction, with or , at NLO in collinear factorisation, in order to examine what may be learnt about the gluon di…
Mini-Proceedings of the STRONG2020 Virtual Workshop on "Space-like and Time-like determination of the Hadronic Leading Order contribution to the Muon "
G. Abbiendi, A. Arbuzov, Sw. Banerjee +31
The mini-proceedings of the STRONG2020 Virtual Workshop "Space-like and Time-like determination of the Hadronic Leading Order contribution to the Muon ", November 24--26 2021,…
Exclusive production of heavy quarkonia as a probe of the low x and low scale gluon PDF
C. A. Flett, S. P. Jones, A. D. Martin +2
We discuss the exclusive photoproduction process, as measured recently at LHCb, as a means of constraining and ultimately determining the low and low gluon PDF. The…
Extracting alpha_s from Electron-Positron Annihilation around 10 GeV
K. G. Chetyrkin, J. H. Kuhn, T. Teubner
The total cross section for electron-positron annihilation into hadrons is calculated in the region just below the B meson threshold. QCD corrections up to third order, quark mass…
A method to include exclusive heavy vector-meson production data at small in global parton analyses
C. A. Flett, A. D. Martin, M. G. Ryskin +1
We propose a method which allows the inclusion of exclusive heavy vector-meson production data at low in future global parton analyses. As an example we perform a study within…
The exclusive process at the LHC tamed to probe the low gluon
S. P. Jones, A. D. Martin, M. G. Ryskin +1
The perturbative QCD expansion for photoproduction appears to be unstable: the NLO correction is large (and of opposite sign) to the LO contribution. Moreover, the predictio…
Top Quark Production to
K. G. Chetyrkin, A. H. Hoang, J. H. Kuehn +2
The cross-section for the production of pairs in -annihilation via a virtual photon is determined up to order . For the cm-energies of interest the effec…
Systematic analysis of search strategies for gauge bosons at Belle II
C. Brown, J. Fiaschi, O. Fischer +1
Extensions of the Standard Model with masses at or below the GeV scale are motivated by searches for dark matter and precision measurements in the quark and lepton flavour sectors,…
Combination of KLOE measurements and determination of in the energy range GeV
2 Collaboration, A. Anastasi, D. Babusci +62
The three precision measurements of the cross section using initial state radiation by the KLOE collaboration provide an important inp…
The QCD description of diffractive rho meson electroproduction
A. D. Martin, M. G. Ryskin, T. Teubner
We critically review the QCD predictions for the cross sections sigma_L and sigma_T for diffractive rho meson electroproduction in longitudinally and transversely polarised states…
Exclusive production at the LHC in the factorization approach
S. P. Jones, A. D. Martin, M. G. Ryskin +1
The recent LHCb data for exclusive peripheral production at 13 TeV motivate an improved `NLO' analysis to estimate the gluon distribution at low in which we re-calculate…
Detailed Report on the Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm
D. P. Aguillard, T. Albahri, D. Allspach +190
We present details on a new measurement of the muon magnetic anomaly, . The result is based on positive muon data taken at Fermilab's Muon Campus during the 2019…
Momentum Distributions in
M. Je\zabek, T. Teubner
We apply the Green function formalism for production and decay near threshold in a study of the effects due to the momentum dependent width for such a system. We point o…
Polarization in Top Quark Pair Production near Threshold
R. Harlander, M. Jeżabek, J. H. Kühn +1
The polarization dependent momentum distributions of top quarks and their decay products are calculated for production at future colliders with polarized beams.…
Predictions of exclusive psi(2S) production at the LHC
S. P. Jones, A. D. Martin, M. G. Ryskin +1
The cross section for exclusive psi(2S) ultraperipheral production at the LHC is calculated using gluon parametrisations extracted from exclusive J/psi measurements performed at HE…
HERA and the LHC - A workshop on the implications of HERA for LHC physics: Proceedings - Part A
S. Alekhin, G. Altarelli, N. Amapane +191
The HERA electron--proton collider has collected 100 pb of data since its start-up in 1992, and recently moved into a high-luminosity operation mode, with upgraded detectors…
HERA and the LHC - A workshop on the implications of HERA for LHC physics: Proceedings - Part B
S. Alekhin, G. Altarelli, N. Amapane +191
The HERA electron--proton collider has collected 100 pb of data since its start-up in 1992, and recently moved into a high-luminosity operation mode, with upgraded detectors…
Hadron Radiation in Tau Production and the Leptonic Z Boson Decay Rate
A. H. Hoang, J. H. Kühn, T. Teubner
Secondary radiation of hadrons from a tau pair produced in electron positron collisions may constitute an important obstacle for precision measurements of the production cross sect…
The SM prediction of g-2 of the muon
K. Hagiwara, A. D. Martin, Daisuke Nomura +1
We calculate (g-2)/2 of the muon, by improving the determination of the hadronic vacuum polarisation contribution, a_mu^{had,LO}, and its uncertainties. The different e+e- data set…
Top Quark Pair Production close to Threshold: Top Mass, Width and Momentum Distribution
A. H. Hoang, T. Teubner
The complete NNLO QCD corrections to the total cross section in the kinematic region close to the top-antitop threshold are calculated by solving…
Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm
D. P. Aguillard, T. Albahri, D. Allspach +188
We present a new measurement of the positive muon magnetic anomaly, , from the Fermilab Muon Experiment using data collected in 2019 and 2020. We…
Mu2e-II: Muon to electron conversion with PIP-II
K. Byrum, S. Corrodi, Y. Oksuzian +104
An observation of Charged Lepton Flavor Violation (CLFV) would be unambiguous evidence for physics beyond the Standard Model. The Mu2e and COMET experiments, under construction, ar…
Analytic Calculation of Two Loop Corrections to Heavy Quark Pair Production Vertices Induced by Light Quarks
A. H. Hoang, T. Teubner
Non-singlet corrections from light quarks are calculated analytically for the massive quark-antiquark pair production rates through the vector, axial-vector, sc…
Proceedings of the workshop: HERA and the LHC workshop series on the implications of HERA for LHC physics
H. Jung, A. De Roeck, Z. J. Ajaltouni +265
2nd workshop on the implications of HERA for LHC physics. Working groups: Parton Density Functions Multi-jet final states and energy flows Heavy quarks (charm and beauty) Diffracti…
Top Physics in WHIZARD
J. Reuter, F. Bach, B. Chokoufe +5
In this talk we summarize the top physics setup in the event generator WHIZARD with a main focus on lepton colliders. This includes full six-, eight- and ten-fermion processes, fac…
Upsilon photoproduction at HERA compared to estimates of perturbative QCD
A. D. Martin, M. G. Ryskin, T. Teubner
We estimate the cross section for gamma p -> Upsilon p by two independent methods. First, by studying the corrections to the naive leading-order QCD formula and, second, by using p…
Radiation of Heavy Quarks
A. H. Hoang, M. Jeżabek, J. H. Kühn +1
The rate for the production of massive fermions radiated off a pair of massless fermions is calculated analytically. Combined with the analytic calculation of the corresponding vir…
Massive Quark Production in Electron Positron Annihilation to Order
K. G. Chetyrkin, A. H. Hoang, J. H. Kühn +2
Recent analytical and numerical results for the three-loop polarization function allow to present a phenomenological analysis of the cross section for massive quark production in e…
Exclusive process tamed to probe the low gluon
S. P. Jones, A. D. Martin, M. G. Ryskin +1
We address the question as to whether data for J/Ïmesons produced exclusively in the forward direction at the LHC can be used in global parton analyses (based on collinear factori…
Automation of NLO processes and decays and POWHEG matching in WHIZARD
J. Reuter, B. Chokoufe, A. Hoang +4
We give a status report on the automation of next-to-leading order processes within the Monte Carlo event generator WHIZARD, using GoSam and OpenLoops as provider for one-loop matr…
A Renormalization Group Improved Calculation of Top Quark Production near Threshold
A. H. Hoang, A. V. Manohar, I. W. Stewart +1
The top quark cross section close to threshold in annihilation is computed including the summation of logarithms of the velocity at next-to-next-to-leading-logarithmic ord…
Muon (g-2) Technical Design Report
J. Grange, V. Guarino, P. Winter +197
The Muon (g-2) Experiment, E989 at Fermilab, will measure the muon anomalous magnetic moment a factor-of-four more precisely than was done in E821 at the Brookhaven National Labora…
Measurement of branching fraction with the KLOE detector
D. Babusci, P. Beltrame, M. Berlowski +50
We present a measurement of the radiative decay using 82 million mesons produced in process at the Frascati -factory DANE. From th…
(2019): Precision measurements of the QCD coupling
David d'Enterria, Stefan Kluth, S. Alekhin +50
This document collects a written summary of all contributions presented at the workshop "(2019): Precision measurements of the strong coupling" held at ECT* (Trento) in Feb.…
Small x gluon from exclusive J/psi production
A. D. Martin, C. Nockles, M. Ryskin +1
Exclusive J/psi production, gamma* p -> J/psi p, offers a unique opportunity to determine the gluon density of the proton in the small x domain. We use the available HERA data to d…
Top Quark Pair Production at Threshold: Complete Next-to-next-to-leading Order Relativistic Corrections
A. H. Hoang, T. Teubner
The complete next-to-next-to-leading order (i.e. , and ) relativistic corrections to the total photon mediated production cross section at…
Prospects for precise predictions of in the Standard Model
G. Colangelo, M. Davier, A. X. El-Khadra +79
We discuss the prospects for improving the precision on the hadronic corrections to the anomalous magnetic moment of the muon, and the plans of the Muon Theory Initiative to…
Update of g-2 of the muon and Delta alpha
T. Teubner, K. Hagiwara, R. Liao +2
We update our Standard Model predictions for g-2 of the muon and for the hadronic contributions to the running of the QED coupling, Delta alpha^5_had(M_Z^2). Particular emphasis is…
Beam dynamics corrections to the Run-1 measurement of the muon anomalous magnetic moment at Fermilab
T. Albahri, A. Anastasi, K. Badgley +174
This paper presents the beam dynamics systematic corrections and their uncertainties for the Run-1 data set of the Fermilab Muon g-2 Experiment. Two corrections to the measured muo…
Hadron Radiation in Leptonic Decays
A. H. Hoang, M. Jeżabek, J. H. Kühn +1
The rate for the final state radiation of hadrons in leptonic decays is evaluated, using as input experimental data for in the low energy region. Config…
Radiation of Light Fermions in Heavy Fermion Production
A. H. Hoang, J. H. Kühn, T. Teubner
The rate for the production of a pair of massive fermions in annihilation plus real or virtual radiation of a pair of massless fermions is calculated analytically. The co…
Final Report on the Measurement of the Positive Muon Anomalous Magnetic Moment at Fermilab to 127 ppb
2 Collaboration, D. P. Aguillard, T. Albahri +192
This report details the final measurement of the muon magnetic anomaly, , by the Muon experiment at Fermi National Accelerator Laboratory (FNAL), using posit…
Strange and charm quark contributions to the anomalous magnetic moment of the muon
Bipasha Chakraborty, C. T. H. Davies, G. C. Donald +4
We describe a new technique to determine the contribution to the anomalous magnetic moment of the muon coming from the hadronic vacuum polarization using lattice QCD. Our method re…
QCD Potential and ttbar Threshold Cross Section --- Status Report ---
M. Jezabek, J. H. Kuhn, M. Peter +2
We include the full second-order corrections to the static QCD potential in the analysis of the ttbar threshold cross section. Then we examine the difference between the results ob…
A compact frozen-spin trap for the search for the electric dipole moment of the muon
A. Adelmann, A. R. Bainbridge, I. Bailey +57
The electric dipole moments~(EDM) of fundamental particles inherently violate parity~(P) and time-reversal~(T) symmetries. By virtue of the CPT theorem in quantum field theory, the…
(g-2)_mu and alpha(M_Z^2) re-evaluated using new precise data
K. Hagiwara, R. Liao, A. D. Martin +2
We update our Standard Model predictions for g-2 of the muon and for the hadronic contributions to the running of the QED coupling, Delta alpha_had^(5)(M_Z^2). Particular emphasis…
Top-Antitop Pair Production close to Threshold: Synopsis of recent NNLO Results
A. H. Hoang, M. Beneke, K. Melnikov +10
Using non-relativistic effective theories, new next-to-next-to-leading order (NNLO) QCD corrections to the total production cross section at the Linear Collider have been…
Improved predictions for g-2 of the muon and α_{\rm QED}(M_Z^2)
K. Hagiwara, A. D. Martin, Daisuke Nomura +1
We update the Standard Model predictions of the anomalous magnetic moment of the muon, a_μ= (g-2)/2, and the value of the QED coupling at the Z-boson mass, incorporating the new e…
Diffractive open charm production at HERA
E. M. Levin, A. D. Martin, M. G. Ryskin +1
We use perturbative QCD to calculate the cross sections for the diffractive production of open charm from longitudinally and transversely polarised pho…
Magnetic Field Measurement and Analysis for the Muon g-2 Experiment at Fermilab
T. Albahri, A. Anastasi, K. Badgley +170
The Fermi National Accelerator Laboratory has measured the anomalous precession frequency of the muon to a combined precision of 0.46 parts per million wit…
Mini-Proceedings of the 14th meeting of the Working Group on Rad. Corrections and MC Generators for Low Energies
H. Czyż, S. Eidelman, G. V. Fedotovich +7
The mini-proceedings of the 14th Meeting of the "Working Group on Rad. Corrections and MC Generators for Low Energies" held in Frascati on September 13, 2013, as a satellite meetin…
Skewed Parton Distributions and F_2^D at beta -> 1
A. Hebecker, T. Teubner
We show that the diffractive structure function is perturbatively calculable in the domain where the diffractive mass is small but still outside the resonance region. In this domai…
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…
Polarization in Top Quark Production and Decay near Threshold
R. Harlander, M. Jeżabek, J. H. Kühn +1
Theoretical results are presented for top quarks produced in annihilation of polarized electrons on positrons. Polarization studies for pairs near threshold are free from…
Heavy Quarkonium Physics
N. Brambilla, M. Krämer, R. Mussa +82
This report is the result of the collaboration and research effort of the Quarkonium Working Group over the last three years. It provides a comprehensive overview of the state of t…
Q^2 dependence of diffractive vector meson electroproduction
A. D. Martin, M. G. Ryskin, T. Teubner
We give a general formula for the cross section for diffractive vector meson electroproduction, gamma^* p -> Vp. We first calculate diffractive qqbar production, and then use parto…
High-Energy Scattering and Diffraction: Theory Summary
A. Hebecker, T. Teubner
New developments in the theory and phenomenology of high-energy scattering and diffraction that were presented and discussed at DIS2000 are reviewed.
Theory of Elastic Vector Meson Production
T. Teubner
The elastic production of vector mesons at HERA is discussed from the theoretical point of view. We briefly review different models, their successes and shortcomings. Main emphasis…
The Belle II Physics Book
E. Kou, P. Urquijo, W. Altmannshofer +524
We present the physics program of the Belle II experiment, located on the intensity frontier SuperKEKB collider. Belle II collected its first collisions in 2018, and is ex…
Exclusive J/psi and Upsilon photoproduction and the low x gluon
S. P. Jones, A. D. Martin, M. G. Ryskin +1
We discuss the potential to constrain the small- PDFs using the exclusive production of heavy vector mesons. The calculation of and photoproduction at NLO in colline…
Diffractive electroproduction of rho meson excitations
A. D. Martin, M. G. Ryskin, T. Teubner
We use perturbative QCD and parton-hadron duality to estimate the cross sections for the diffractive electroproduction of rhoprime(1-) and rho(3-) resonances which occur in the 1.3…
Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm
B. Abi, T. Albahri, S. Al-Kilani +234
We present the first results of the Fermilab Muon g-2 Experiment for the positive muon magnetic anomaly . The anomaly is determined from the precision measur…
The strange and charm quark contributions to the anomalous magnetic moment (g -2) of the muon from current-current correlators
Bipasha Chakraborty, Christine Davies, Gordon Donald +5
We describe a new technique (presented in arXiv:1403.1778) to determine the contribution to the anomalous magnetic moment (g-2) of the muon coming from the hadronic vacuum polarisa…
Angular Distributions of Massive Quarks and Leptons Close to Threshold
S. J. Brodsky, A. H. Hoang, J. H. Kuhn +1
Predictions for the angular distribution of massive quarks and leptons are presented, including QCD and QED corrections. Recent results for the fermionic part of the two-loop corre…
Radiation of Light Fermions in Heavy Fermion Production
A. H. Hoang, J. H. Kühn, T. Teubner
Recent analytic calculations on the rate for the production of a pair of massive fermions in annihilation plus real or virtual radiation of a pair of massless fermions ar…
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…
The anomalous magnetic moment of the muon in the Standard Model: an update
R. Aliberti, T. Aoyama, E. Balzani +232
We present the current Standard Model (SM) prediction for the muon anomalous magnetic moment, , updating the first White Paper (WP20) [1]. The pure QED and electroweak contri…
Data-driven evaluations of Euclidean windows to scrutinize hadronic vacuum polarization
G. Colangelo, A. X. El-Khadra, M. Hoferichter +4
In this paper, we discuss how windows in Euclidean time can be used to isolate the origin of potential conflicts between evaluations of the hadronic-vacuum-polarization (HVP) contr…
Measurement of the Positive Muon Anomalous Magnetic Moment to 127 ppb
The Muon $g-2$ Collaboration, :, D. P. Aguillard +193
A new measurement of the magnetic anomaly of the positive muon is presented based on data taken from 2020 to 2023 by the Muon Experiment at Fermi National Accelerator…
Predictions for g-2 of the muon and alpha_QED(M_Z^2)
K. Hagiwara, A. D. Martin, Daisuke Nomura +1
We calculate (g-2) of the muon and the QED coupling alpha(M_Z^2), by improving the determination of the hadronic vacuum polarization contributions and their uncertainties. We inclu…
Generalised parton distributions at small x
A. D. Martin, C. Nockles, M. G. Ryskin +2
We justify the practical use of the Shuvaev integral transform approach to calculate the skewed distributions, needed to describe diffractive processes, directly from the conventio…
Axial Contributions at the Top Threshold
J. H. Kuhn, T. Teubner
We calculate the contributions of the axial current to top quark pair production in e+ e- annihilation at threshold. The QCD dynamics is taken into account by solving the Lippmann-…
Probes of the small x gluon via exclusive J/psi and Upsilon
S. P. Jones, A. D. Martin, M. G. Ryskin +1
New, more precise data on diffractive J/psi photoproduction and on exclusive J/psi production in the process pp -> p + J/psi + p at the LHC allow a better constraint on the low-x g…
The Perturbative QCD Potential and the ttbar Threshold
M. Jezabek, J. H. Kuhn, M. Peter +2
We include the full second-order corrections to the static QCD potential in the analysis of the ttbar threshold cross section. There is an unexpectedly large difference between the…
Report of the 2005 Snowmass Top/QCD Working Group
A. Juste, Y. Kiyo, F. Petriello +15
This report discusses several topics in both top quark physics and QCD at an International Linear Collider (ILC). Issues such as measurements at the threshold, including…
Comment on the Average Momentum of Top Quarks in the Threshold Region
M. Jeżabek, J. H. Kühn, T. Teubner
The behavior of the momentum distribution of top quarks in the threshold region is investigated. The qualitative behavior, in particular the dependence of the average momentum on t…
The anomalous magnetic moment of the muon in the Standard Model
T. Aoyama, N. Asmussen, M. Benayoun +129
We review the present status of the Standard Model calculation of the anomalous magnetic moment of the muon. This is performed in a perturbative expansion in the fine-structure con…
Double Bubble Corrections to Heavy Quark Production
K. G. Chetyrkin, A. H. Hoang, J. H. Kuehn +2
Second order corrections to the heavy quark production cross-section due to massless quarks and coloured scalars are calculated for all energies above threshold.…
Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data
S. Actis, A. Arbuzov, G. Balossini +53
We present the achievements of the last years of the experimental and theoretical groups working on hadronic cross section measurements at the low energy e+e- colliders in Beijing,…
Measurement of the anomalous precession frequency of the muon in the Fermilab Muon g-2 experiment
T. Albahri, A. Anastasi, A. Anisenkov +175
The Muon g-2 Experiment at Fermi National Accelerator Laboratory (FNAL) has measured the muon anomalous precession frequency to an uncertainty of 434 parts per billion (ppb)…
Constraining the Hadronic Contributions to the Muon Anomalous Magnetic Moment
H. Czyż, A. Denig, S. Eidelman +19
The mini-proceedings of the Workshop on "Constraining the hadronic contributions to the muon anomalous magnetic moment" which included the "13th meeting of the Radio MonteCarLow WG…
The Threshold t-tbar Cross Section at NNLL Order
A. H. Hoang, A. V. Manohar, I. W. Stewart +1
The total cross section for top quark pair production close to threshold in e+e- annihilation is investigated. Details are given about the calculation at next-to-next-to-leading lo…