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Publications (39)

astro-ph.IM2024

A Collection of German Science Interests in the Next Generation Very Large Array

M. Kadler, D. A. Riechers, J. Agarwal +88

The Next Generation Very Large Array (ngVLA) is a planned radio interferometer providing unprecedented sensitivity at wavelengths between 21 cm and 3 mm. Its 263 antenna element ar…

hep-ph2016

Calculating four-loop massless propagators with Forcer

T. Ueda, B. Ruijl, J. A. M. Vermaseren

We present Forcer, a new FORM program for the calculation of four-loop massless propagators. The basic framework is similar to that of the Mincer program for three-loop massless pr…

nucl-ex2026

Comprehensive measurement of $I^\cdot^{'}$ photoproduction off the proton at $E_{I^}^{3} < 2.4$ $GeV$

N. Muramatsu, J. K. Ahn, W. C. Chang +61

For the spectroscopy of nucleon resonances at the total energies from the $I^\cdot^{'}$ -meson production threshold to $2.32$ $GeV$ , photon beam asymmetries of the reaction $…

hep-ph2019

Five-loop contributions to low-N non-singlet anomalous dimensions in QCD

F. Herzog, S. Moch, B. Ruijl +3

We present the first calculations of next-to-next-to-next-to-next-to-leading order (N^4LO) contributions to anomalous dimensions of spin-N twist-2 operators in perturbative QCD. Sp…

hep-ph2018

On quartic colour factors in splitting functions and the gluon cusp anomalous dimension

S. Moch, B. Ruijl, T. Ueda +2

We have computed the contributions of the quartic Casimir invariants to the four-loop anomalous dimensions of twist-2 spin-N operators at N =< 16. The results provide new informati…

hep-ph2013

A QCD description of the ATLAS jet veto measurement

Y. Hatta, C. Marquet, C. Royon +3

We present a new QCD description of the ATLAS jet veto measurement, using the Banfi-Marchesini-Smye equation to constrain the inter-jet QCD radiation. This equation resums emission…

nucl-ex2022

Differential cross sections and photon beam asymmetries of $I^\cdot$ photoproduction on the proton at $E_{I^}^{3}$ = 1.3-2.4 GeV

T. Hashimoto, T. Nam, N. Muramatsu +57

We have carried out exclusive measurements for the photoproduction of an $I^\cdot$ meson from a proton target with an egg-shaped calorimeter made of BGO crystals (BGOegg) and forward ch…

hep-ph2014

Full $O (I^\pm)$ electroweak radiative corrections to $e^{+} e^{-} \to e^{+} e^{-} I^^{3}$ at the ILC with GRACE-Loop

P. H. Khiem, Y. Kurihara, J. Fujimoto +8

By using the GRACE-Loop system, we calculate the full $O (I^\pm)$ electroweak radiative corrections to the process $e^{+} e^{-} \to e^{+} e^{-} I^^{3}$ , which is important for futu…

hep-ph2017

The five-loop beta function of Yang-Mills theory with fermions

F. Herzog, B. Ruijl, T. Ueda +2

We have computed the five-loop corrections to the scale dependence of the renormalized coupling constant for Quantum Chromodynamics (QCD), its generalization to non-Abelian gauge t…

hep-ph2016

Large-nf Contributions to the Four-Loop Splitting Functions in QCD

J. Davies, A. Vogt, B. Ruijl +2

We have computed the fourth-order nf^2 contributions to all three non-singlet quark-quark splitting functions and their four nf^3 flavour-singlet counterparts for the evolution of…

hep-ph2026

FORM Version 5.0

J. Davies, T. Kaneko, C. Marinissen +2

We present FORM 5, a major release of the symbolic-manipulation system FORM. Version 5 introduces an integrated diagram generator, based on the GRACE graph-generator, to produce Fe…

hep-ph2021

Low moments of the four-loop splitting functions in QCD

S. Moch, B. Ruijl, T. Ueda +2

We have computed the four lowest even-N moments of all four splitting functions for the evolution of flavour-singlet parton densities of hadrons at the fourth order in the strong c…

hep-ph2018

Anomalous dimensions and splitting functions beyond the next-to-next-to-leading order

A. Vogt, F. Herzog, S. Moch +3

We report on recent progress on the splitting functions for the evolution of parton distributions and related quantities, the (lightlike) cusp anomalous dimensions, in perturbative…

hep-ph2007

Status reports from the GRACE Group

Y. Yasui, T. Ueda, E. de Doncker +5

We discuss a new approach for the numerical evaluation of loop integrals. The fully numerical calculations of an infrared one-loop vertex and a box diagram are demonstrated. To per…

hep-ph2017

On Higgs decays to hadrons and the R-ratio at N^4LO

F. Herzog, B. Ruijl, T. Ueda +2

We present the first determination of Higgs-boson decay to hadrons at the next-to-next-to-next-to-next-to-leading order of perturbative QCD in the limit of a heavy top quark and ma…

hep-ph2007

The Virtual Photon Structure to the Next-to-next-to-leading Order in QCD

T. Ueda, K. Sasaki, T. Uematsu

We investigate the unpolarized virtual photon structure functions $F_{2}^{g} amma (x, Q^{2}, P^{2})$ and $F_{L}^{g} amma (x, Q^{2}, P^{2})$ in perturbative QCD for the kinematical region $Lambda^2 ll P^2…

hep-ph2023

Additional moments and x-space approximations of four-loop splitting functions in QCD

S. Moch, B. Ruijl, T. Ueda +2

We have extended our previous computations of the even-N moments of the flavour-singlet four-loop splitting functions to N = 12 for the pure-singlet quark case and N = 10 for all o…

hep-ph2018

R*-operation and five-loop calculations

B. Ruijl, F. Herzog, T. Ueda +2

We sketch how the R*-operation can be used to compute the pole terms of Feynman diagrams. We identify computational difficulties when performing five-loop calculations, and provide…

astro-ph.IM2009

CSIP - a Novel Photon-Counting Detector Applicable for the SPICA Far-Infrared Instrument

Y. Doi, Z. Wang, T. Ueda +8

We describe a novel GaAs/AlGaAs double-quantum-well device for the infrared photon detection, called Charge-Sensitive Infrared Phototransistor (CSIP). The principle of CSIP detecto…

hep-ph2006

Sum rules of polarized photon structure functions revisited-- NNLO corrections to the first moment of $g_{1}^{3} (x, Q^{2}, P^{2})$ --

T. Ueda, T. Uematsu, K. Sasaki

We present the next-to-next-to-leading order ( $I^\pm I^\pm_{s}^{2}$ ) corrections to the first moment of the polarized virtual photon structure function $g_{1}^{3} (x, Q^{2}, P^{2})$ in the kinematical…

physics.app-ph2021

Transmission properties of microwaves at an optical Weyl point in a three-dimensional chiral photonic crystal

S. Takahashi, S. Tamaki, K. Yamashita +3

Microwave transmission measurements were performed for a three-dimensional (3D) layer-by-layer chiral photonic crystal (PhC), whose photonic band structure contains 3D singular poi…

hep-ph2014

Full $O (I^\pm)$ electroweak radiative corrections to $t t ˉ I^^{3}$ and $e^{-} e^{+} I^^{3}$ productions at ILC with GRACE-Loop

P. H. Khiem, Y. Kurihara, J. Fujimoto +10

The full $O (I^\pm)$ electroweak radiative corrections to $t t ˉ I^^{3}$ and $e^{-} e^{+} I^^{3}$ productions at the International Linear Collider (ILC) are presented in this paper. Th…

hep-ph2013

Full $O (I^\pm)$ electroweak radiative corrections to $e^{+} e^{-} \to t t ˉ I^^{3}$ with GRACE-Loop

P. H. Khiem, J. Fujimoto, T. Ishikawa +7

We present the full $O (I^\pm)$ electroweak radiative corrections to the process $e^{+} e^{-} \to t t ˉ I^^{3}$ at the International Linear Collider (ILC). The computation…

hep-ph2016

First Forcer results on deep-inelastic scattering and related quantities

B. Ruijl, T. Ueda, J. A. M. Vermaseren +2

We present results on the fourth-order splitting functions and coefficient functions obtained using Forcer, a four-loop generalization of the Mincer program for the parametric redu…

hep-ph2011

Eccentricity and elliptic flow in pp collisions at the LHC

E. Avsar, Y. Hatta, C. Flensburg +2

High-multiplicity proton-proton collisions at the LHC may exhibit collective phenomena such as elliptic flow. We study this issue using DIPSY, a brand-new Monte Carlo event generat…

cs.SC2012

FORM version 4.0

J. Kuipers, T. Ueda, J. A. M. Vermaseren +1

We present version 4.0 of the symbolic manipulation system FORM. The most important new features are manipulation of rational polynomials and the factorization of expressions. Many…

hep-ph2017

Four-Loop Non-Singlet Splitting Functions in the Planar Limit and Beyond

S. Moch, B. Ruijl, T. Ueda +2

We present the next-to-next-to-next-to-leading order (N^3LO) contributions to the non-singlet splitting functions for both parton distribution and fragmentation functions in pertur…

hep-ph2025

Five-loop beta function for gauge theories: computations, results and consequences

F. Herzog, B. Ruijl, T. Ueda +2

At the end of 2016, we computed the five-loop (N $^{4}$ LO) contributions to the beta function in perturbative Quantum Chromodynamics (QCD), its generalization to non-Abelian gauge the…

hep-ph2022

DIS coefficient functions at four loops in QCD and beyond

S. Moch, B. Ruijl, T. Ueda +2

We report results for the lowest even- $N$ moments of the flavor-nonsinglet structure functions $F_{2}$ and $F_{L}$ in QCD at the fourth order in the perturbative expansion in the stron…

cond-mat.mes-hall2016

Near-field Nanoscopy of Thermal Evanescent Waves on Metals

S. Komiyama, Y. Kajihara, K. Kosaka +2

Intense electromagnetic evanescent fields are thermally excited in near fields on material surfaces (at distances smaller than the wavelength of peak thermal radiation). The proper…

hep-ph2017

Four-loop QCD propagators and vertices with one vanishing external momentum

B. Ruijl, T. Ueda, J. A. M. Vermaseren +1

We have computed the self-energies and a set of three-particle vertex functions for massless QCD at the four-loop level in the MSbar renormalization scheme. The vertex functions ar…

cs.SC2013

Code Optimization in FORM

J. Kuipers, T. Ueda, J. A. M. Vermaseren

We describe the implementation of output code optimization in the open source computer algebra system FORM. This implementation is based on recently discovered techniques of Monte…

physics.acc-ph2026

First Synchrotron Injection Attempt into The SuperKEKB High Energy Ring

N. Iida, Y. Funakoshi, H. Kaji +17

A synchrotron injection scheme for the SuperKEKB electron high-energy ring (HER) was implemented and experimentally evaluated as the first attempt with a top-up injection during be…

nucl-ex2020

Search for $I^\cdot^{'}$ bound nuclei in the $^{12} C (I^^{3}, p)$ reaction with simultaneous detection of decay products

N. Tomida, N. Muramatsu, M. Niiyama +60

We measured missing mass spectrum of the $^{12} C (I^^{3}, p)$ reaction for the first time in coincidence with potential decay products from $I^\cdot^{'}$ bound nuclei. We tagged an ( $I^\cdot + p$ …

hep-ph2016

Forcer: a FORM program for 4-loop massless propagators

T. Ueda, B. Ruijl, J. A. M. Vermaseren

We present a new FORM program for analytically evaluating four-loop massless propagator-type Feynman integrals in an efficient way. Our program Forcer implements parametric reducti…

hep-ph2017

Forcer, a FORM program for the parametric reduction of four-loop massless propagator diagrams

B. Ruijl, T. Ueda, J. A. M. Vermaseren

We explain the construction of Forcer, a FORM program for the reduction of four-loop massless propagator-type integrals to master integrals. The resulting program performs parametr…

hep-ph2006

Transition from real to virtual polarized photon structures

T. Ueda, T. Uematsu, K. Sasaki

We investigate the transition of the polarized photon structure function $g_{1}^{3} (x, Q^{2}, P^{2})$ when the target photon shifts from on-shell ( $P^{2} = 0$ ) to far off-shell ( $P^{2} ≫ I^^{2}$ )…

hep-ph2006

The $a l p haa l p h a_{s}^{2}$ corrections to the first moment of the polarized virtual photon structure function $g_{1}^{g} amma (x, Q^{2}, P^{2})$

K. Sasaki, T. Ueda, T. Uematsu

We present the next-to-next-to-leading order ( $a l p haa l p h a_{s}^{2}$ ) corrections to the first moment of the polarized virtual photon structure function $g_{1}^{g} amma (x, Q^{2}, P^{2})$ in the ki…

hep-ph2018

Four-loop results on anomalous dimensions and splitting functions in QCD

A. Vogt, S. Moch, B. Ruijl +2

We report on recent progress on the flavour non-singlet splitting functions in perturbative QCD. The~exact four-loop (N^3LO) contribution to these functions has been obtained in th…

Publications (39)

A Collection of German Science Interests in the Next Generation Very Large Array

Calculating four-loop massless propagators with Forcer

Comprehensive measurement of I^⋅′ photoproduction off the proton at EI^3​<2.4 GeV

Five-loop contributions to low-N non-singlet anomalous dimensions in QCD

On quartic colour factors in splitting functions and the gluon cusp anomalous dimension

A QCD description of the ATLAS jet veto measurement

Differential cross sections and photon beam asymmetries of I^⋅ photoproduction on the proton at EI^3​ = 1.3-2.4 GeV

Full O(I^±) electroweak radiative corrections to e+e−→e+e−I^3 at the ILC with GRACE-Loop

The five-loop beta function of Yang-Mills theory with fermions

Large-nf Contributions to the Four-Loop Splitting Functions in QCD

FORM Version 5.0

Low moments of the four-loop splitting functions in QCD

Anomalous dimensions and splitting functions beyond the next-to-next-to-leading order

Status reports from the GRACE Group

On Higgs decays to hadrons and the R-ratio at N^4LO

The Virtual Photon Structure to the Next-to-next-to-leading Order in QCD

Additional moments and x-space approximations of four-loop splitting functions in QCD

R*-operation and five-loop calculations

CSIP - a Novel Photon-Counting Detector Applicable for the SPICA Far-Infrared Instrument

Sum rules of polarized photon structure functions revisited-- NNLO corrections to the first moment of g13​(x,Q2,P2) --

Transmission properties of microwaves at an optical Weyl point in a three-dimensional chiral photonic crystal

Full O(I^±) electroweak radiative corrections to ttˉI^3 and e−e+I^3 productions at ILC with GRACE-Loop

Full O(I^±) electroweak radiative corrections to e+e−→ttˉI^3 with GRACE-Loop

First Forcer results on deep-inelastic scattering and related quantities

Eccentricity and elliptic flow in pp collisions at the LHC

FORM version 4.0

Four-Loop Non-Singlet Splitting Functions in the Planar Limit and Beyond

Five-loop beta function for gauge theories: computations, results and consequences

DIS coefficient functions at four loops in QCD and beyond

Near-field Nanoscopy of Thermal Evanescent Waves on Metals

Four-loop QCD propagators and vertices with one vanishing external momentum

Code Optimization in FORM

First Synchrotron Injection Attempt into The SuperKEKB High Energy Ring

Search for I^⋅′ bound nuclei in the 12C(I^3,p) reaction with simultaneous detection of decay products

Forcer: a FORM program for 4-loop massless propagators

Forcer, a FORM program for the parametric reduction of four-loop massless propagator diagrams

Transition from real to virtual polarized photon structures

The alphaalphas2​ corrections to the first moment of the polarized virtual photon structure function g1g​amma(x,Q2,P2)

Four-loop results on anomalous dimensions and splitting functions in QCD

Comprehensive measurement of $I^\cdot^{'}$ photoproduction off the proton at $E_{I^}^{3} < 2.4$ $GeV$

Differential cross sections and photon beam asymmetries of $I^\cdot$ photoproduction on the proton at $E_{I^}^{3}$ = 1.3-2.4 GeV

Full $O (I^\pm)$ electroweak radiative corrections to $e^{+} e^{-} \to e^{+} e^{-} I^^{3}$ at the ILC with GRACE-Loop

Sum rules of polarized photon structure functions revisited-- NNLO corrections to the first moment of $g_{1}^{3} (x, Q^{2}, P^{2})$ --

Full $O (I^\pm)$ electroweak radiative corrections to $t t ˉ I^^{3}$ and $e^{-} e^{+} I^^{3}$ productions at ILC with GRACE-Loop

Full $O (I^\pm)$ electroweak radiative corrections to $e^{+} e^{-} \to t t ˉ I^^{3}$ with GRACE-Loop

Search for $I^\cdot^{'}$ bound nuclei in the $^{12} C (I^^{3}, p)$ reaction with simultaneous detection of decay products

The $a l p haa l p h a_{s}^{2}$ corrections to the first moment of the polarized virtual photon structure function $g_{1}^{g} amma (x, Q^{2}, P^{2})$