145 citations · 399 across the 29 of their papers we have counts for
20 papers · 1 filter
Higgs boson production at colliders
Yu Hamada, Ryuichiro Kitano, Ryutaro Matsudo +4
We study Higgs boson production at colliders at high energy. Since both initial-state particles are positively charged, there is no boson fusion at the leading order,…
Two-loop Quarkonium Hamiltonian in Non-annihilation Channel
Go Mishima, Yukinari Sumino, Hiromasa Takaura
We calculate the two-loop heavy quarkonium Hamiltonian within potential-NRQCD effective field theory in the non-annihilation channel. This calculation represents the first non-triv…
Gradient-flow renormalon subtraction and the hadronic tau decay series
Martin Beneke, Hiromasa Takaura
The inconsistency between the fixed-order (FO) and contour-improved (CI) representation of the QCD corrections to the inclusive hadronic tau decay width limits the precision to whi…
Inclusive determination in mass scheme using dual-space-renormalon-subtraction method
Yuuki Hayashi, Go Mishima, Yukinari Sumino +1
We determine from the inclusive semileptonic decay width of the meson with the known NLO perturbative coefficients for the first time in the $\overline{\mathrm{M…
Determination of HQET nonperturbative matrix elements with renormalon subtraction using Fourier transform
Hiromasa Takaura
As higher order perturbative series are available, it is becoming necessary to include nonperturbative effects in QCD calculations using the OPE. In order to systematically determi…
Precision and elastic scatterings
Yu Hamada, Ryuichiro Kitano, Ryutaro Matsudo +1
Expected precisions of measurements of the elastic scattering cross sections are estimated for and colliders, which are recently proposed as future realistic po…
Determination of using NLO perturbative corrections to and 1S masses
Yuuki Hayashi, Yukinari Sumino, Hiromasa Takaura
We determine using the third-order perturbative series for the inclusive semileptonic decay width and for the masses of the bottomonium 1S states. We use the masses…
TRISTAN
Yu Hamada, Ryuichiro Kitano, Ryutaro Matsudo +2
The ultra-cold muon technology developed for the muon experiment at J-PARC provides a low emittance beam which can be accelerated and used for realistic collider experi…
Renormalon subtraction in OPE using Fourier transform: Formulation and application to various observables
Yuuki Hayashi, Yukinari Sumino, Hiromasa Takaura
Properly separating and subtracting renormalons in the framework of the operator product expansion (OPE) is a way to realize high precision computation of QCD effects in high energ…
Renormalons in static QCD potential: review and some updates
Hiromasa Takaura
We give a brief review of the current understanding of renormalons of the static QCD potential in coordinate and momentum spaces. We also reconsider estimate of the normalization c…
New method for renormalon subtraction using Fourier transform
Yuuki Hayashi, Yukinari Sumino, Hiromasa Takaura
To improve accuracy in calculating QCD effects, we propose a method for renormalon subtraction in the context of the operator-product expansion. The method enables subtracting reno…
Formulation for renormalon-free perturbative predictions beyond large- approximation
Hiromasa Takaura
We present a formulation to give renormalon-free predictions consistently with fixed order perturbative results. The formulation has a similarity to Lee's method in that the renorm…
On renormalons of static QCD potential at and
Yukinari Sumino, Hiromasa Takaura
We investigate the [] and [] renormalons in the static QCD potential in position space and momentum space usin…
(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. 1…
An extended locally constant field approximation for nonlinear Compton scattering
A. Ilderton, B. King, D. Seipt
The locally constant field approximation (LCFA) has to date underpinned the numerical simulation of quantum processes in laser-plasma physics and astrophysics, but its validity has…
Determination of from static QCD potential with renormalon subtraction
Hiromasa Takaura, Takashi Kaneko, Yuichiro Kiyo +1
We determine the strong coupling constant from the static QCD potential by matching a lattice result and a theoretical calculation. We use a new theoretical framework ba…
Renormalon-free definition of the gluon condensate within the large- approximation
Hiroshi Suzuki, Hiromasa Takaura
We propose a clear definition of the gluon condensate within the large- approximation as an attempt toward a systematic argument on the gluon condensate. We define the gluon c…
Renormalon free part of an ultrasoft correction to the static QCD potential
Hiromasa Takaura
Perturbative calculations of the static QCD potential have the renormalon uncertainty. In the multipole expansion performed within pNRQCD, this uncertainty at LO is known t…
Subtracting IR Renormalons from Wilson Coefficients: Uniqueness and power dependences on
Go Mishima, Yukinari Sumino, Hiromasa Takaura
In the context of OPE and using the large- approximation, we propose a method to define Wilson coefficients free from uncertainties due to IR renormalons. We first introduce a…
UV contribution and power dependence on of Adler function
Go Mishima, Yukinari Sumino, Hiromasa Takaura
We formulate a way to separate UV and IR contributions to the Adler function and discuss how dependence is encoded in the UV contribution within perturbative…