Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Török, Csaba"'
Autor:
Krasniqi, Ardit, Cè, Marco, Harris, Tim, Hudspith, Renwick J., Meyer, Harvey B., Török, Csaba
The thermal photon emissivity at the QCD chiral crossover is investigated using imaginary momentum correlators. These have been measured on a newly generated $20 \times 96^3$ lattice-QCD ensemble with $\mathcal{O}(a)$-improved Wilson quarks and physi
Externí odkaz:
http://arxiv.org/abs/2401.05951
The thermal photon emissivity of the quark-gluon plasma is determined by the in-medium spectral function of the electromagnetic current at lightlike kinematics, $\sigma(\omega)$. In this work, we present the first lattice QCD results on moments of $\
Externí odkaz:
http://arxiv.org/abs/2309.09884
The thermal photon emission rate is determined by the spatially transverse, in-medium spectral function of the electromagnetic current. Accessing the spectral function using Euclidean data is, however, a challenging problem due to the ill-posed natur
Externí odkaz:
http://arxiv.org/abs/2212.05622
We investigate several aspects of chiral symmetry in QCD at a temperature of $T = 128\,\text{MeV}$. The study is based on a $24\times 96^3$ lattice-QCD ensemble with O($a$)-improved Wilson quarks and physical up, down and strange quark masses. The pi
Externí odkaz:
http://arxiv.org/abs/2211.15558
We present results for the thermal photon emissivity of the quark-gluon plasma derived from spatially transverse vector correlators computed in lattice QCD at a temperature of 250 MeV. The analysis of the spectral functions, performed at fixed spatia
Externí odkaz:
http://arxiv.org/abs/2205.02821
Publikováno v:
PoS(LATTICE2021)172
We present results for the photon emission rate determined from the transverse channel vector correlator at fixed spatial momentum using two flavors of dynamical Wilson fermions at $T\sim$250 MeV. We estimate the transverse channel spectral function
Externí odkaz:
http://arxiv.org/abs/2112.00563
The photon emissivity of quark-gluon plasma probes the interactions in the medium and differs qualitatively between a weakly coupled and a strongly coupled plasma in the soft-photon regime. The photon emissivity is given by the product of kinematic f
Externí odkaz:
http://arxiv.org/abs/2112.00450
Publikováno v:
PoS(LATTICE2021)572
We propose a method to help control cutoff effects in the short-distance contribution to integrated correlation functions, such as the hadronic vacuum polarization (HVP), using the corresponding screening correlators computed at finite temperature. T
Externí odkaz:
http://arxiv.org/abs/2111.07948
Non-perturbatively computing the hadronic vacuum polarization at large photon virtualities and making contact with perturbation theory enables a precision determination of the electromagnetic coupling at the $Z$ pole, which enters global electroweak
Externí odkaz:
http://arxiv.org/abs/2106.15293
Autor:
Kačala, Viliam, Török, Csaba
Publikováno v:
In Journal of Computational and Applied Mathematics 1 January 2021 381